Always initialize status to 0 when calling HAL from JNI.

The HAL functions often call NI functions that may expect status to be
initialized on entry.  Java does not guarantee direct pointer allocation
memory to be initialized, although that may have been occurring by accident.

Change-Id: I5e3a553f3a7be8de3716ccfc13e6ca1cb4f2a552

wpilibj/wpilibJavaJNI/lib/AnalogJNI.cpp

@@ -26,6 +26,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_initializeAna
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 	void** analogPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*analogPtr = initializeAnalogInputPort(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *analogPtr;
@@ -45,6 +46,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_initializeAna
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 	void** analogPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*analogPtr = initializeAnalogOutputPort(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *analogPtr;
@@ -103,6 +105,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogOutput
 {
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	setAnalogOutput(*javaId, voltage, statusPtr);
 }
 
@@ -116,6 +119,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogOutp
 {
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getAnalogOutput(*javaId, statusPtr);
 }
 
@@ -129,6 +133,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogSampleR
 {
 	ANALOGJNI_LOG(logDEBUG) << "SampleRate = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	setAnalogSampleRate( value, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -142,6 +147,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogSamp
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	double returnValue = getAnalogSampleRate( statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "SampleRate = " << returnValue;
@@ -160,6 +166,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogAverage
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	setAnalogAverageBits( *javaId, value, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -175,6 +182,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogAverage
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jint returnValue = getAnalogAverageBits( *javaId, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "AverageBits = " << returnValue;
@@ -193,6 +201,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogOversam
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	setAnalogOversampleBits( *javaId, value, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -208,6 +217,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogOversam
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jint returnValue = getAnalogOversampleBits( *javaId, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "OversampleBits = " << returnValue;
@@ -225,6 +235,7 @@ JNIEXPORT jshort JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogValue
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	//ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jshort returnValue = getAnalogValue( *javaId, statusPtr );
 	//ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	//ANALOGJNI_LOG(logDEBUG) << "Value = " << returnValue;
@@ -242,6 +253,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogAverage
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jint returnValue = getAnalogAverageValue( *javaId, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "AverageValue = " << returnValue;
@@ -260,6 +272,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogVoltsTo
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	ANALOGJNI_LOG(logDEBUG) << "VoltageValue = " << voltageValue;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jint returnValue = getAnalogVoltsToValue( *javaId, voltageValue, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "Value = " << returnValue;
@@ -277,6 +290,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogVolt
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	//ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jdouble returnValue = getAnalogVoltage( *javaId, statusPtr );
 	//ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	//ANALOGJNI_LOG(logDEBUG) << "Voltage = " << returnValue;
@@ -294,6 +308,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogAver
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jdouble returnValue = getAnalogAverageVoltage( *javaId, statusPtr );
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "AverageVoltage = " << returnValue;
@@ -311,6 +326,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogLSBWeig
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	jint returnValue = getAnalogLSBWeight(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -329,6 +345,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogOffset
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	jint returnValue = getAnalogOffset(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -348,6 +365,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_isAccumulatorCh
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	// isAccumulaotrChanel returns a boolean
 	char vOut = isAccumulatorChannel(*javaId, statusPtr) ? 1 : 0;
@@ -370,6 +388,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_initAccumulator
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	initAccumulator(*javaId, statusPtr);
 
@@ -388,6 +407,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_resetAccumulator
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	resetAccumulator(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -404,6 +424,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAccumulatorCe
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	setAccumulatorCenter(*javaId, center, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -421,6 +442,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAccumulatorDe
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	setAccumulatorDeadband(*javaId, deadband, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -437,6 +459,7 @@ JNIEXPORT jlong JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAccumulatorV
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	jlong returnValue = getAccumulatorValue(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -456,6 +479,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAccumulatorCo
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	jint returnValue = getAccumulatorCount(*javaId, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -474,6 +498,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAccumulatorOu
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 
 	jlong * valuePtr = (jlong*)env->GetDirectBufferAddress(value);
 	uint32_t * countPtr = (uint32_t*)env->GetDirectBufferAddress(count);
@@ -503,6 +528,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_initializeAna
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
 	void ** analogTriggerPtr = new void *;
+	*statusPtr = 0;
 	*analogTriggerPtr = initializeAnalogTrigger(*javaId, (uint32_t *)indexPtr, statusPtr);
 	ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ANALOGJNI_LOG(logDEBUG) << "AnalogTrigger Ptr = " << *analogTriggerPtr;
@@ -524,6 +550,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_cleanAnalogTrigg
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	cleanAnalogTrigger( *javaId, statusPtr );
 
 	delete javaId;
@@ -543,6 +570,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogTrigger
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	setAnalogTriggerLimitsRaw( *javaId, lower, upper, statusPtr );
 }
 
@@ -560,6 +588,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogTrigger
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	setAnalogTriggerLimitsVoltage( *javaId, lower, upper, statusPtr );
 }
 
@@ -576,6 +605,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogTrigger
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	setAnalogTriggerAveraged( *javaId, averaged, statusPtr );
 }
 
@@ -592,6 +622,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_setAnalogTrigger
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	setAnalogTriggerFiltered( *javaId, filtered, statusPtr );
 }
 
@@ -609,6 +640,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogTrigge
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	return getAnalogTriggerInWindow( *javaId, statusPtr );
 }
 
@@ -626,6 +658,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogTrigge
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	return getAnalogTriggerTriggerState( *javaId, statusPtr );
 }
 
@@ -643,5 +676,6 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAnalogTrigge
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ANALOGJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	return getAnalogTriggerOutput( *javaId, (AnalogTriggerType)type, statusPtr )? 1 : 0;
 }

wpilibj/wpilibJavaJNI/lib/CANJNI.cpp

@@ -52,6 +52,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_can_CANJNI_FRCNetworkCommunica
 
     CANJNI_LOG(logDEBUG) << "Period: " << periodMs;
 
+    *statusPtr = 0;
     FRC_NetworkCommunication_CANSessionMux_sendMessage(messageID, dataBuffer, dataSize, periodMs, statusPtr);
 
     CANJNI_LOG(logDEBUG) << "Status: " << *statusPtr;
@@ -75,6 +76,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_can_CANJNI_FRCNetworkCommun
 
     uint8_t dataSize = 0;
 
+    *statusPtr = 0;
     FRC_NetworkCommunication_CANSessionMux_receiveMessage(messageIDPtr, messageIDMask, buffer, &dataSize, timeStampPtr, statusPtr);
 
     CANJNI_LOG(logDEBUG) << "Message ID " << std::hex << *messageIDPtr;

wpilibj/wpilibJavaJNI/lib/CompressorJNI.cpp

@@ -41,6 +41,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressor(*pcm_pointer, status_pointer);
 }
 
@@ -55,6 +56,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_setClosedLoo
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	setClosedLoopControl(*pcm_pointer, value, status_pointer);
 }
 
@@ -69,6 +71,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getClose
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getClosedLoopControl(*pcm_pointer, status_pointer);
 }
 
@@ -83,6 +86,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getPress
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getPressureSwitch(*pcm_pointer, status_pointer);
 }
 
@@ -97,6 +101,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompres
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorCurrent(*pcm_pointer, status_pointer);
 }
 
@@ -111,6 +116,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorCurrentTooHighFault(*pcm_pointer, status_pointer);
 }
 
@@ -125,6 +131,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorCurrentTooHighStickyFault(*pcm_pointer, status_pointer);
 }
 
@@ -139,6 +146,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorShortedStickyFault(*pcm_pointer, status_pointer);
 }
 
@@ -153,6 +161,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorShortedFault(*pcm_pointer, status_pointer);
 }
 
@@ -167,6 +176,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorNotConnectedStickyFault(*pcm_pointer, status_pointer);
 }
 
@@ -181,6 +191,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_getCompr
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getCompressorNotConnectedFault(*pcm_pointer, status_pointer);
 }
 /*
@@ -194,5 +205,6 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CompressorJNI_clearAllPCMS
 	VoidPointer *pcm_pointer = (VoidPointer *)env->GetDirectBufferAddress(pcm_pointer_object);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	clearAllPCMStickyFaults(*pcm_pointer, status_pointer);
 }

wpilibj/wpilibJavaJNI/lib/CounterJNI.cpp

@@ -28,6 +28,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_initializeCo
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 	void** counterPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*counterPtr = initializeCounter((Mode)mode, (uint32_t*)indexPtr, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Index = " << *indexPtr;
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -48,6 +49,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_freeCounter
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	freeCounter(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -66,6 +68,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterAvera
 	COUNTERJNI_LOG(logDEBUG) << "AverageSize = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterAverageSize(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -85,6 +88,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterUpSou
 	COUNTERJNI_LOG(logDEBUG) << "AnalogTrigger = " << (jint)analogTrigger;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterUpSource(*javaId, pin, analogTrigger, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -104,6 +108,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterUpSou
 	COUNTERJNI_LOG(logDEBUG) << "Fall = " << (jint)valueFall;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterUpSourceEdge(*javaId, valueRise, valueFall, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -121,6 +126,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_clearCounterUpS
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	clearCounterUpSource(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -140,6 +146,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterDownS
 	COUNTERJNI_LOG(logDEBUG) << "AnalogTrigger = " << (jint)analogTrigger;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterDownSource(*javaId, pin, analogTrigger, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -159,6 +166,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterDownS
 	COUNTERJNI_LOG(logDEBUG) << "Fall = " << (jint)valueFall;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterDownSourceEdge(*javaId, valueRise, valueFall, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -176,6 +184,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_clearCounterDow
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	clearCounterDownSource(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -193,6 +202,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterUpDow
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterUpDownMode(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -210,6 +220,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterExter
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterExternalDirectionMode(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -228,6 +239,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterSemiP
 	COUNTERJNI_LOG(logDEBUG) << "SemiPeriodMode = " << (jint)value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterSemiPeriodMode(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -246,6 +258,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterPulse
 	COUNTERJNI_LOG(logDEBUG) << "PulseLengthMode = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterPulseLengthMode(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -263,6 +276,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_getCounterSampl
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jint returnValue = getCounterSamplesToAverage(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	COUNTERJNI_LOG(logDEBUG) << "getCounterSamplesToAverageResult = " << returnValue;
@@ -283,6 +297,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterSampl
 	COUNTERJNI_LOG(logDEBUG) << "SamplesToAverage = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterSamplesToAverage(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -300,6 +315,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_resetCounter
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	resetCounter(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -317,6 +333,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_getCounter
 	//COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	//COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jint returnValue = getCounter(*javaId, statusPtr);
 	//COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	//COUNTERJNI_LOG(logDEBUG) << "getCounterResult = " << returnValue;
@@ -336,6 +353,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_getCounterPe
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jdouble returnValue = getCounterPeriod(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	COUNTERJNI_LOG(logDEBUG) << "getCounterPeriodResult = " << returnValue;
@@ -356,6 +374,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterMaxPe
 	COUNTERJNI_LOG(logDEBUG) << "MaxPeriod = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterMaxPeriod(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -374,6 +393,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterUpdat
 	COUNTERJNI_LOG(logDEBUG) << "UpdateWhenEmpty = " << (jint)value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterUpdateWhenEmpty(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -391,6 +411,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_getCounterStop
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getCounterStopped(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	COUNTERJNI_LOG(logDEBUG) << "getCounterStoppedResult = " << (jint)returnValue;
@@ -410,6 +431,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_getCounterDire
 	COUNTERJNI_LOG(logDEBUG) << "Counter Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getCounterDirection(*javaId, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	COUNTERJNI_LOG(logDEBUG) << "getCounterDirectionResult = " << (jint)returnValue;
@@ -430,6 +452,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_CounterJNI_setCounterRever
 	COUNTERJNI_LOG(logDEBUG) << "ReverseDirection = " << (jint)value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	COUNTERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setCounterReverseDirection(*javaId, value, statusPtr);
 	COUNTERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/DIOJNI.cpp

@@ -27,6 +27,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_initializeDigita
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 	void** dioPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*dioPtr = initializeDigitalPort(*javaId, statusPtr);
 	DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	DIOJNI_LOG(logDEBUG) << "DIO Ptr = " << *dioPtr;
@@ -46,6 +47,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_allocateDIO
 	DIOJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
     jbyte returnValue = allocateDIO(*javaId, value, statusPtr);
 	DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	DIOJNI_LOG(logDEBUG) << "allocateDIOResult = " << (jint)returnValue;
@@ -65,6 +67,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_freeDIO
 	DIOJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	freeDIO(*javaId, statusPtr);
 	DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -83,6 +86,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_setDIO
 	//DIOJNI_LOG(logDEBUG) << "Value = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	//DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setDIO(*javaId, value, statusPtr);
 	//DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -100,6 +104,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_getDIO
 	//DIOJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	//DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getDIO(*javaId, statusPtr);
 	//DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	//DIOJNI_LOG(logDEBUG) << "getDIOResult = " << (jint)returnValue;
@@ -120,6 +125,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_getDIODirection
 	//DIOJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	//DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getDIODirection(*javaId, statusPtr);
 	//DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	DIOJNI_LOG(logDEBUG) << "getDIODirectionResult = " << (jbyte)returnValue;
@@ -140,6 +146,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_pulse
 	//DIOJNI_LOG(logDEBUG) << "Value = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	//DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	pulse(*javaId, value, statusPtr);
 	DIOJNI_LOG(logDEBUG) << "Did it work? Status = " << *statusPtr;
 }
@@ -157,6 +164,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_isPulsing
 	//DIOJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	//DIOJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = isPulsing(*javaId, statusPtr);
 	//DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	DIOJNI_LOG(logDEBUG) << "isPulsingResult = " << (jbyte)returnValue;
@@ -175,6 +183,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_isAnyPulsing
 {
 	DIOJNI_LOG(logDEBUG) << "Calling DIOJNI isAnyPulsing (RR upd)";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jbyte returnValue = isAnyPulsing( statusPtr );
 	//DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	DIOJNI_LOG(logDEBUG) << "isAnyPulsingResult = " << (jbyte)returnValue;
@@ -191,6 +200,7 @@ JNIEXPORT jshort JNICALL Java_edu_wpi_first_wpilibj_hal_DIOJNI_getLoopTiming
 {
 	DIOJNI_LOG(logDEBUG) << "Calling DIOJNI getLoopTimeing";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jshort returnValue = getLoopTiming( statusPtr );
 	DIOJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	DIOJNI_LOG(logDEBUG) << "LoopTiming = " << returnValue;

wpilibj/wpilibJavaJNI/lib/EncoderJNI.cpp

@@ -34,6 +34,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_initializeEn
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 	void** encoderPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*encoderPtr = initializeEncoder(port_a_module, port_a_pin, port_a_analog_trigger,
 							  port_b_module, port_b_pin, port_b_analog_trigger,
 							  reverseDirection, indexPtr, statusPtr);
@@ -57,6 +58,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_freeEncoder
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	freeEncoder(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -74,6 +76,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_resetEncoder
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	resetEncoder(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -91,6 +94,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_getEncoder
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jint returnValue = getEncoder(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ENCODERJNI_LOG(logDEBUG) << "getEncoderResult = " <<  returnValue;
@@ -110,6 +114,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_getEncoderPe
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	double returnValue = getEncoderPeriod(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ENCODERJNI_LOG(logDEBUG) << "getEncoderPeriodResult = " <<  returnValue;
@@ -129,6 +134,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_setEncoderMaxPe
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setEncoderMaxPeriod(*javaId, value, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -146,6 +152,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_getEncoderStop
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getEncoderStopped(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ENCODERJNI_LOG(logDEBUG) << "getEncoderStoppedResult = " <<  returnValue;
@@ -165,6 +172,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_getEncoderDire
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getEncoderDirection(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ENCODERJNI_LOG(logDEBUG) << "getEncoderDirectionResult = " <<  returnValue;
@@ -184,6 +192,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_setEncoderRever
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setEncoderReverseDirection(*javaId, value, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -201,6 +210,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_setEncoderSampl
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setEncoderSamplesToAverage(*javaId, value, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -218,6 +228,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_getEncoderSampl
 	ENCODERJNI_LOG(logDEBUG) << "Encoder Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jint returnValue = getEncoderSamplesToAverage(*javaId, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	ENCODERJNI_LOG(logDEBUG) << "getEncoderSamplesToAverageResult = " <<  returnValue;
@@ -241,6 +252,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_EncoderJNI_setEncoderIndex
 	ENCODERJNI_LOG(logDEBUG) << "Active High = " << (activeHigh?"true":"false");
 	ENCODERJNI_LOG(logDEBUG) << "Edge Sensitive = " << (edgeSensitive?"true":"false");
 	ENCODERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setEncoderIndexSource(*javaId, pin, analogTrigger, activeHigh, edgeSensitive, statusPtr);
 	ENCODERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/FRCNetworkCommunicationsLibrary.cpp

@@ -615,6 +615,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_communication_FRCNetworkCo
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return HALGetSystemActive((int32_t*)statusPtr);
 }
 
@@ -627,6 +628,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_communication_FRCNetworkCo
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return HALGetBrownedOut((int32_t*)statusPtr);
 }
 

wpilibj/wpilibJavaJNI/lib/HALUtil.cpp

@@ -123,6 +123,7 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
 {
   HALUTIL_LOG(logDEBUG) << "Calling HALUtil getFPGAVersion";
   jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+  *statusPtr = 0;
   jshort returnValue = getFPGAVersion( statusPtr );
   HALUTIL_LOG(logDEBUG) << "Status = " << *statusPtr;
   HALUTIL_LOG(logDEBUG) << "FPGAVersion = " << returnValue;
@@ -139,6 +140,7 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
 {
   HALUTIL_LOG(logDEBUG) << "Calling HALUtil getFPGARevision";
   jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+  *statusPtr = 0;
   jint returnValue = getFPGARevision( statusPtr );
   HALUTIL_LOG(logDEBUG) << "Status = " << *statusPtr;
   HALUTIL_LOG(logDEBUG) << "FPGARevision = " << returnValue;
@@ -155,6 +157,7 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
 {
   //HALUTIL_LOG(logDEBUG) << "Calling HALUtil getFPGATime";
   jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+  *statusPtr = 0;
   jlong returnValue = getFPGATime( statusPtr );
   //HALUTIL_LOG(logDEBUG) << "Status = " << *statusPtr;
   //HALUTIL_LOG(logDEBUG) << "FPGATime = " << returnValue;
@@ -172,6 +175,7 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
 {
   //HALUTIL_LOG(logDEBUG) << "Calling HALUtil getFPGATime";
   jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+  *statusPtr = 0;
   jboolean returnValue = getFPGAButton( statusPtr );
   //HALUTIL_LOG(logDEBUG) << "Status = " << *statusPtr;
   //HALUTIL_LOG(logDEBUG) << "FPGATime = " << returnValue;

wpilibj/wpilibJavaJNI/lib/I2CJNI.cpp

@@ -24,6 +24,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_I2CJNI_i2CInitialize
 	I2CJNI_LOG(logDEBUG) << "Calling I2CJNI i2CInititalize";
 	I2CJNI_LOG(logDEBUG) << "Port: " << (jint) value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	i2CInitialize(value, statusPtr);
 	I2CJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/InterruptJNI.cpp

@@ -26,6 +26,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_initializeInt
 	INTERRUPTJNI_LOG(logDEBUG) << "Calling INTERRUPTJNI initializeInterruptJVM";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jint rs = env->GetJavaVM(&jvm);
 	assert (rs == JNI_OK);
 }
@@ -46,6 +47,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_initialize
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
 	void** interruptPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*interruptPtr = (void**) initializeInterrupts(interruptIndex, watcher, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Interrupt Ptr = " << *interruptPtr;
@@ -69,6 +71,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_cleanInterrup
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	cleanInterrupts(*javaId, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -88,6 +91,7 @@ JNIEXPORT int JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_waitForInterru
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	int result = waitForInterrupt(*javaId, timeout, ignorePrevious, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -109,6 +113,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_enableInterru
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	enableInterrupts(*javaId, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -128,6 +133,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_disableInterr
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	disableInterrupts(*javaId, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -147,6 +153,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_readRising
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	jdouble timeStamp = readRisingTimestamp(*javaId, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -167,6 +174,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_readFallin
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	jdouble timeStamp = readFallingTimestamp(*javaId, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -190,6 +198,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_requestInterr
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	requestInterrupts(*javaId, (uint8_t) routing_module, (uint32_t) routing_pin, routing_analog_trigger, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -292,6 +301,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_attachInterru
 	INTERRUPTJNI_LOG(logDEBUG) << "InterruptHandlerParam->mid = " << interruptHandlerParam->mid;
 	INTERRUPTJNI_LOG(logDEBUG) << "InterruptHandlerParam->param = " << interruptHandlerParam->param;
 
+	*statusPtr = 0;
 	attachInterruptHandler(*javaId, interruptHandler, interruptHandlerParam, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -314,6 +324,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_InterruptJNI_setInterruptU
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	INTERRUPTJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+	*statusPtr = 0;
 	setInterruptUpSourceEdge(*javaId, risingEdge, fallingEdge, statusPtr);
 
 	INTERRUPTJNI_LOG(logDEBUG) << "Status = " << *statusPtr;

wpilibj/wpilibJavaJNI/lib/NotifierJNI.cpp

@@ -88,6 +88,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_NotifierJNI_initializeNoti
 	NOTIFIERJNI_LOG(logDEBUG) << "Calling NOTIFIERJNI initializeNotifierJVM";
 	jint * statusPtr = GetStatusPtr(env, status);
 	NOTIFIERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jint rs = env->GetJavaVM(&jvm);
 	assert (rs == JNI_OK);
 }
@@ -119,6 +120,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_NotifierJNI_initializeN
   func_global = env->NewGlobalRef(func);
   mid_global = mid;
 
+	*statusPtr = 0;
 	void *notifierPtr = initializeNotifier(notifierHandler, statusPtr);
 
 	NOTIFIERJNI_LOG(logDEBUG) << "Notifier Ptr = " << notifierPtr;
@@ -142,6 +144,7 @@ JNIEXPORT void JNICALL
   jint *statusPtr = GetStatusPtr(env, status);
 	NOTIFIERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 
+  *statusPtr = 0;
   cleanNotifier(ptr, statusPtr);
 	NOTIFIERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -164,6 +167,7 @@ JNIEXPORT void JNICALL
 	NOTIFIERJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
   NOTIFIERJNI_LOG(logDEBUG) << "triggerTime Ptr = " << &triggerTime;
 
+  *statusPtr = 0;
   updateNotifierAlarm(ptr, (uint32_t)triggerTime, statusPtr);
 	NOTIFIERJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/PDPJNI.cpp

@@ -22,6 +22,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_getPDPTemperatur
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	return getPDPTemperature(status_ptr, module);
 }
 
@@ -35,6 +36,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_getPDPVoltage
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	return getPDPVoltage(status_ptr, module);
 }
 
@@ -48,6 +50,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_getPDPChannelCur
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	return getPDPChannelCurrent(channel, status_ptr, module);
 }
 
@@ -61,6 +64,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_getPDPTotalCurre
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	return getPDPTotalCurrent(status_ptr, module);
 }
 
@@ -74,6 +78,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_getPDPTotalPower
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	return getPDPTotalPower(status_ptr, module);
 }
 
@@ -87,6 +92,7 @@ JNIEXPORT jdouble JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_getPDPTotalEnerg
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	return getPDPTotalEnergy(status_ptr, module);
 }
 
@@ -101,6 +107,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_resetPDPTotalEnergy
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	resetPDPTotalEnergy(status_ptr, module);
 }
 
@@ -114,5 +121,6 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PDPJNI_clearPDPStickyFault
 {
 	jint *status_ptr = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_ptr = 0;
 	clearPDPStickyFaults(status_ptr, module);
-}
+}

wpilibj/wpilibJavaJNI/lib/PWMJNI.cpp

@@ -27,6 +27,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_allocatePWMChan
 	PWMJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
     jbyte returnValue = allocatePWMChannel(*javaId, statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	PWMJNI_LOG(logDEBUG) << "allocatePWMChannelResult = " << (jint)returnValue;
@@ -46,6 +47,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_freePWMChannel
 	PWMJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	freePWMChannel(*javaId, statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 
@@ -63,6 +65,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_setPWM
 	PWMJNI_LOG(logDEBUG) << "DigitalPort Ptr = " << *javaId;
 	PWMJNI_LOG(logDEBUG) << "PWM Value = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	setPWM( *javaId, value, statusPtr );
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -78,6 +81,7 @@ JNIEXPORT jshort JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_getPWM
 	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	PWMJNI_LOG(logDEBUG) << "PWM Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jshort returnValue = getPWM( *javaId, statusPtr );
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	PWMJNI_LOG(logDEBUG) << "Value = " << returnValue;
@@ -95,6 +99,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_latchPWMZero
   	void ** javaId = (void**)env->GetDirectBufferAddress(id);
 	PWMJNI_LOG(logDEBUG) << "PWM Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	latchPWMZero( *javaId, statusPtr );
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -111,6 +116,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_setPWMPeriodScale
 	PWMJNI_LOG(logDEBUG) << "DigitalPort Ptr = " << *javaId;
 	PWMJNI_LOG(logDEBUG) << "PeriodScale Value = " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	setPWMPeriodScale( *javaId, value, statusPtr );
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -127,6 +133,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_allocatePWM
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
 	void** pwmPtr = (void**)new unsigned char[4];
+	*statusPtr = 0;
 	*pwmPtr =  allocatePWM(statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	PWMJNI_LOG(logDEBUG) << "PWM Ptr = " << *pwmPtr;
@@ -147,6 +154,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_freePWM
 	PWMJNI_LOG(logDEBUG) << "PWM Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	freePWM(*javaId, statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -163,6 +171,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_setPWMRate
 	PWMJNI_LOG(logDEBUG) << "Rate= " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setPWMRate(value, statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -181,6 +190,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_setPWMDutyCycle
 	PWMJNI_LOG(logDEBUG) << "DutyCycle= " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setPWMDutyCycle(*javaId, value, statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -199,6 +209,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_PWMJNI_setPWMOutputChannel
 	PWMJNI_LOG(logDEBUG) << "Pin= " << value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	PWMJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setPWMOutputChannel(*javaId, (uint32_t) value, statusPtr);
 	PWMJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/PowerJNI.cpp

@@ -11,6 +11,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getVinVoltage
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getVinVoltage(statusPtr);
 }
 
@@ -23,6 +24,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getVinCurrent
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getVinCurrent(statusPtr);
 }
 
@@ -35,6 +37,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserVoltage6
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserVoltage6V(statusPtr);
 }
 
@@ -47,6 +50,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserCurrent6
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserCurrent6V(statusPtr);
 }
 
@@ -59,6 +63,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserActive
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserActive6V(statusPtr);
 }
 
@@ -71,6 +76,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserCurrentFau
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserCurrentFaults6V(statusPtr);
 }
 
@@ -83,6 +89,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserVoltage5
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserVoltage5V(statusPtr);
 }
 
@@ -95,6 +102,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserCurrent5
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserCurrent5V(statusPtr);
 }
 
@@ -107,6 +115,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserActive
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserActive5V(statusPtr);
 }
 
@@ -119,6 +128,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserCurrentFau
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserCurrentFaults5V(statusPtr);
 }
 
@@ -131,6 +141,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserVoltage3
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserVoltage3V3(statusPtr);
 }
 
@@ -143,6 +154,7 @@ JNIEXPORT jfloat JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserCurrent3
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserCurrent3V3(statusPtr);
 }
 
@@ -155,6 +167,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserActive
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserActive3V3(statusPtr);
 }
 
@@ -167,6 +180,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_PowerJNI_getUserCurrentFau
   (JNIEnv * env, jclass, jobject status)
 {
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	return getUserCurrentFaults3V3(statusPtr);
 }
 

wpilibj/wpilibJavaJNI/lib/RelayJNI.cpp

@@ -27,6 +27,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_RelayJNI_setRelayForward
 	RELAYJNI_LOG(logDEBUG) << "Flag = " << (jint)value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	RELAYJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setRelayForward(*javaId, value, statusPtr);
 	RELAYJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -45,6 +46,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_RelayJNI_setRelayReverse
 	RELAYJNI_LOG(logDEBUG) << "Flag = " << (jint)value;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	RELAYJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	setRelayReverse(*javaId, value, statusPtr);
 	RELAYJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -62,6 +64,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_RelayJNI_getRelayForward
 	RELAYJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	RELAYJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getRelayForward(*javaId, statusPtr);
 	RELAYJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	RELAYJNI_LOG(logDEBUG) << "getRelayForwardResult = " << (jint)returnValue;
@@ -81,6 +84,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_RelayJNI_getRelayReverse
 	RELAYJNI_LOG(logDEBUG) << "Port Ptr = " << *javaId;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	RELAYJNI_LOG(logDEBUG) << "Status Ptr = " << statusPtr;
+	*statusPtr = 0;
 	jbyte returnValue = getRelayReverse(*javaId, statusPtr);
 	RELAYJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	RELAYJNI_LOG(logDEBUG) << "getRelayReverseResult = " << (jint)returnValue;

wpilibj/wpilibJavaJNI/lib/SPIJNI.cpp

@@ -25,6 +25,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SPIJNI_spiInitialize
 	SPIJNI_LOG(logDEBUG) << "Calling SPIJNI spiInitialize";
 	SPIJNI_LOG(logDEBUG) << "Port = " << (jint) port;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	spiInitialize(port, statusPtr);
 	SPIJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -149,6 +150,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SPIJNI_spiSetChipSelectAct
 	SPIJNI_LOG(logDEBUG) << "Calling SPIJNI spiSetCSActiveHigh";
 	SPIJNI_LOG(logDEBUG) << "Port = " << (jint) port;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	spiSetChipSelectActiveHigh(port, statusPtr);
 	SPIJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -164,6 +166,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SPIJNI_spiSetChipSelectAct
 	SPIJNI_LOG(logDEBUG) << "Calling SPIJNI spiSetCSActiveLow";
 	SPIJNI_LOG(logDEBUG) << "Port = " << (jint) port;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	spiSetChipSelectActiveLow(port, statusPtr);
 	SPIJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/SerialPortJNI.cpp

@@ -24,6 +24,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialInitia
 	SERIALJNI_LOG(logDEBUG) << "Calling Serial Initialize";
 	SERIALJNI_LOG(logDEBUG) << "Port = " << (jint) port;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialInitializePort(port, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -39,6 +40,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetBau
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Baud Rate";
 	SERIALJNI_LOG(logDEBUG) << "Baud: " << rate;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetBaudRate(port, rate, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -54,6 +56,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetDat
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Data Bits";
 	SERIALJNI_LOG(logDEBUG) << "Data Bits: " << bits;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetDataBits(port, bits, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -69,6 +72,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetPar
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Parity";
 	SERIALJNI_LOG(logDEBUG) << "Parity: " << parity;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetParity(port, parity, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -84,6 +88,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetSto
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Stop Bits";
 	SERIALJNI_LOG(logDEBUG) << "Stop Bits: " << bits;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetStopBits(port, bits, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -99,6 +104,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetWri
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Write Mode";
 	SERIALJNI_LOG(logDEBUG) << "Write mode: " << mode;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetWriteMode(port, mode, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -114,6 +120,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetFlo
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Flow Control";
 	SERIALJNI_LOG(logDEBUG) << "Flow Control: " << flow;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetFlowControl(port, flow, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -129,6 +136,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetTim
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Timeout";
 	SERIALJNI_LOG(logDEBUG) << "Timeout: " << timeout;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetTimeout(port, timeout, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -144,6 +152,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialEnable
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Enable Termination";
 	SERIALJNI_LOG(logDEBUG) << "Terminator: " << terminator;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialEnableTermination(port, terminator, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -158,6 +167,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialDisabl
 {
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Disable termination";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialDisableTermination(port, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -173,6 +183,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetRea
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Read Buffer Size";
 	SERIALJNI_LOG(logDEBUG) << "Size: " << size;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetReadBufferSize(port, size, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -188,6 +199,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetWri
 	SERIALJNI_LOG(logDEBUG) << "Setting Serial Write Buffer Size";
 	SERIALJNI_LOG(logDEBUG) << "Size: " << size;
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialSetWriteBufferSize(port, size, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -202,6 +214,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialGetByt
 {
 	SERIALJNI_LOG(logDEBUG) << "Serial Get Bytes Received";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	jint retVal = serialGetBytesReceived(port, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 	return retVal;
@@ -219,6 +232,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialRead
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
 	jbyte * dataReceivedPtr = NULL;
 	dataReceivedPtr = (jbyte*)env->GetDirectBufferAddress(dataReceived);
+	*statusPtr = 0;
 	jint retVal = serialRead(port, (char*)dataReceivedPtr, size, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "ReturnValue = " << retVal;
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -239,6 +253,7 @@ JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialWrite
 	if(dataToSend != 0){
 		dataToSendPtr = (jbyte*)env->GetDirectBufferAddress(dataToSend);
 	}
+	*statusPtr = 0;
 	jint retVal = serialWrite(port, (const char*)dataToSendPtr, size, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "ReturnValue = " << retVal;
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
@@ -255,6 +270,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialFlush
 {
 	SERIALJNI_LOG(logDEBUG) << "Serial Flush";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialFlush(port, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -269,6 +285,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialClear
 {
   	SERIALJNI_LOG(logDEBUG) << "Serial Clear";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialClear(port, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }
@@ -283,6 +300,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialClose
 {
 	SERIALJNI_LOG(logDEBUG) << "Serial Close";
 	jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
+	*statusPtr = 0;
 	serialClose(port, statusPtr);
 	SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
 }

wpilibj/wpilibJavaJNI/lib/SolenoidJNI.cpp

@@ -31,6 +31,7 @@ JNIEXPORT jobject JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_initializeS
 	SOLENOIDJNI_LOG(logDEBUG) << "Status Ptr = " << status_pointer;
 	
 	VoidPointer *solenoid_port_pointer = new VoidPointer;
+	*status_pointer = 0;
 	*solenoid_port_pointer = initializeSolenoidPort(*port_pointer_pointer, status_pointer);
 	
 	SOLENOIDJNI_LOG(logDEBUG) << "Status = " << *status_pointer;
@@ -72,6 +73,7 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_setSolenoid
 	jint *status_pointer = (jint*)env->GetDirectBufferAddress(status);
 	SOLENOIDJNI_LOG(logDEBUG) << "Status Ptr = " << status_pointer;
 	
+	*status_pointer = 0;
 	setSolenoid(*solenoid_port_pointer, value, status_pointer);
 }
 
@@ -87,6 +89,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_getSolenoid
 	VoidPointer *solenoid_port_pointer = (VoidPointer *)env->GetDirectBufferAddress(solenoid_port);
 	jint *status_pointer = (jint*)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getSolenoid(*solenoid_port_pointer, status_pointer);
 }
 
@@ -102,6 +105,7 @@ JNIEXPORT jbyte JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_getPCMSolenoi
 	VoidPointer *solenoid_port_pointer = (VoidPointer *)env->GetDirectBufferAddress(solenoid_port);
 	jint *status_pointer = (jint*)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getPCMSolenoidBlackList(*solenoid_port_pointer, status_pointer);
 }
 /*
@@ -115,6 +119,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_getPCMSole
 	VoidPointer *solenoid_port_pointer = (VoidPointer *)env->GetDirectBufferAddress(solenoid_port);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getPCMSolenoidVoltageStickyFault(*solenoid_port_pointer, status_pointer);
 }
 /*
@@ -128,6 +133,7 @@ JNIEXPORT jboolean JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_getPCMSole
 	VoidPointer *solenoid_port_pointer = (VoidPointer *)env->GetDirectBufferAddress(solenoid_port);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	return getPCMSolenoidVoltageFault(*solenoid_port_pointer, status_pointer);
 }
 /*
@@ -141,5 +147,6 @@ JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SolenoidJNI_clearAllPCMSti
 	VoidPointer *solenoid_port_pointer = (VoidPointer *)env->GetDirectBufferAddress(solenoid_port);
 	jint *status_pointer = (jint *)env->GetDirectBufferAddress(status);
 	
+	*status_pointer = 0;
 	clearAllPCMStickyFaults_sol(*solenoid_port_pointer, status_pointer);
 }