Remove getTable from wpilibj Sendable interface.

This allows nearly all m_table member variables to be removed.

wpilibj/src/main/java/edu/wpi/first/wpilibj/ADXL345_I2C.java

@@ -175,7 +175,6 @@ public class ADXL345_I2C extends SensorBase implements Accelerometer, LiveWindow
     return "3AxisAccelerometer";
   }
 
-  private NetworkTable m_table;
   @SuppressWarnings("MemberName")
   private NetworkTableEntry m_xEntry;
   @SuppressWarnings("MemberName")
@@ -185,11 +184,10 @@ public class ADXL345_I2C extends SensorBase implements Accelerometer, LiveWindow
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_xEntry = m_table.getEntry("X");
-      m_yEntry = m_table.getEntry("Y");
-      m_zEntry = m_table.getEntry("Z");
+    if (subtable != null) {
+      m_xEntry = subtable.getEntry("X");
+      m_yEntry = subtable.getEntry("Y");
+      m_zEntry = subtable.getEntry("Z");
       updateTable();
     } else {
       m_xEntry = null;
@@ -211,11 +209,6 @@ public class ADXL345_I2C extends SensorBase implements Accelerometer, LiveWindow
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void startLiveWindowMode() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/ADXL345_SPI.java

@@ -193,7 +193,6 @@ public class ADXL345_SPI extends SensorBase implements Accelerometer, LiveWindow
     return "3AxisAccelerometer";
   }
 
-  private NetworkTable m_table;
   @SuppressWarnings("MemberName")
   private NetworkTableEntry m_xEntry;
   @SuppressWarnings("MemberName")
@@ -203,11 +202,10 @@ public class ADXL345_SPI extends SensorBase implements Accelerometer, LiveWindow
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_xEntry = m_table.getEntry("X");
-      m_yEntry = m_table.getEntry("Y");
-      m_zEntry = m_table.getEntry("Z");
+    if (subtable != null) {
+      m_xEntry = subtable.getEntry("X");
+      m_yEntry = subtable.getEntry("Y");
+      m_zEntry = subtable.getEntry("Z");
       updateTable();
     } else {
       m_xEntry = null;
@@ -229,11 +227,6 @@ public class ADXL345_SPI extends SensorBase implements Accelerometer, LiveWindow
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void startLiveWindowMode() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/ADXL362.java

@@ -209,7 +209,6 @@ public class ADXL362 extends SensorBase implements Accelerometer, LiveWindowSend
     return "3AxisAccelerometer";
   }
 
-  private NetworkTable m_table;
   @SuppressWarnings("MemberName")
   private NetworkTableEntry m_xEntry;
   @SuppressWarnings("MemberName")
@@ -219,11 +218,10 @@ public class ADXL362 extends SensorBase implements Accelerometer, LiveWindowSend
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_xEntry = m_table.getEntry("X");
-      m_yEntry = m_table.getEntry("Y");
-      m_zEntry = m_table.getEntry("Z");
+    if (subtable != null) {
+      m_xEntry = subtable.getEntry("X");
+      m_yEntry = subtable.getEntry("Y");
+      m_zEntry = subtable.getEntry("Z");
       updateTable();
     } else {
       m_xEntry = null;
@@ -245,11 +243,6 @@ public class ADXL362 extends SensorBase implements Accelerometer, LiveWindowSend
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void startLiveWindowMode() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/AnalogAccelerometer.java

@@ -141,25 +141,18 @@ public class AnalogAccelerometer extends SensorBase implements PIDSource, LiveWi
   /*
    * Live Window code, only does anything if live window is activated.
    */
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/AnalogInput.java

@@ -365,14 +365,12 @@ public class AnalogInput extends SensorBase implements PIDSource, LiveWindowSend
     return "Analog Input";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
@@ -386,11 +384,6 @@ public class AnalogInput extends SensorBase implements PIDSource, LiveWindowSend
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   /**
    * Analog Channels don't have to do anything special when entering the LiveWindow. {@inheritDoc}
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/AnalogOutput.java

@@ -70,14 +70,12 @@ public class AnalogOutput extends SensorBase implements LiveWindowSendable {
     return "Analog Output";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
@@ -91,11 +89,6 @@ public class AnalogOutput extends SensorBase implements LiveWindowSendable {
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   /**
    * Analog Channels don't have to do anything special when entering the LiveWindow. {@inheritDoc}
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/AnalogPotentiometer.java

@@ -153,14 +153,12 @@ public class AnalogPotentiometer implements Potentiometer, LiveWindowSendable {
     return "Analog Input";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
@@ -174,11 +172,6 @@ public class AnalogPotentiometer implements Potentiometer, LiveWindowSendable {
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   /**
    * Frees this resource.
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/BuiltInAccelerometer.java

@@ -98,7 +98,6 @@ public class BuiltInAccelerometer implements Accelerometer, LiveWindowSendable {
     return "3AxisAccelerometer";
   }
 
-  private NetworkTable m_table;
   @SuppressWarnings("MemberName")
   private NetworkTableEntry m_xEntry;
   @SuppressWarnings("MemberName")
@@ -108,11 +107,10 @@ public class BuiltInAccelerometer implements Accelerometer, LiveWindowSendable {
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_xEntry = m_table.getEntry("X");
-      m_yEntry = m_table.getEntry("Y");
-      m_zEntry = m_table.getEntry("Z");
+    if (subtable != null) {
+      m_xEntry = subtable.getEntry("X");
+      m_yEntry = subtable.getEntry("Y");
+      m_zEntry = subtable.getEntry("Z");
       updateTable();
     } else {
       m_xEntry = null;
@@ -134,11 +132,6 @@ public class BuiltInAccelerometer implements Accelerometer, LiveWindowSendable {
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void startLiveWindowMode() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/CANSpeedController.java

@@ -7,8 +7,6 @@
 
 package edu.wpi.first.wpilibj;
 
-import edu.wpi.first.networktables.EntryListenerFlags;
-import edu.wpi.first.networktables.NetworkTable;
 import edu.wpi.first.wpilibj.livewindow.LiveWindowSendable;
 
 public interface CANSpeedController extends SpeedController, PIDInterface, LiveWindowSendable {
@@ -141,94 +139,8 @@ public interface CANSpeedController extends SpeedController, PIDInterface, LiveW
    */
   String SMART_DASHBOARD_TYPE = "CANSpeedController";
 
-  @Override
-  default void updateTable() {
-    NetworkTable table = getTable();
-    if (table != null) {
-      table.getEntry("~TYPE~").setString(SMART_DASHBOARD_TYPE);
-      table.getEntry("Type").setString(getClass().getSimpleName());
-      table.getEntry("Mode").setDouble(getControlMode().getValue());
-      if (getControlMode().isPID()) {
-        table.getEntry("p").setDouble(getP());
-        table.getEntry("i").setDouble(getI());
-        table.getEntry("d").setDouble(getD());
-        table.getEntry("f").setDouble(getF());
-      }
-      table.getEntry("Enabled").setBoolean(isEnabled());
-      table.getEntry("Value").setDouble(get());
-    }
-  }
-
   @Override
   default String getSmartDashboardType() {
     return SMART_DASHBOARD_TYPE;
   }
-
-  /**
-   * Remove table listeners.
-   */
-  default void removeTableListeners(int[] listeners) {
-    NetworkTable table = getTable();
-    if (table != null) {
-      table.getEntry("Mode").removeListener(listeners[0]);
-      table.getEntry("p").removeListener(listeners[1]);
-      table.getEntry("i").removeListener(listeners[2]);
-      table.getEntry("d").removeListener(listeners[3]);
-      table.getEntry("f").removeListener(listeners[4]);
-      table.getEntry("Enabled").removeListener(listeners[5]);
-      table.getEntry("Value").removeListener(listeners[6]);
-    }
-  }
-
-  /**
-   * Create table listeners.
-   */
-  default int[] createTableListeners() {
-    int[] listeners = new int[7];
-    NetworkTable table = getTable();
-    if (table != null) {
-      listeners[0] = table.getEntry("Mode").addListener(
-          (event) -> setControlMode((int) event.value.getDouble()),
-          EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-
-      listeners[1] = table.getEntry("p").addListener((event) -> {
-        if (getControlMode().isPID()) {
-          setP(event.value.getDouble());
-        }
-      }, EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-
-      listeners[2] = table.getEntry("i").addListener((event) -> {
-        if (getControlMode().isPID()) {
-          setI(event.value.getDouble());
-        }
-      }, EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-
-      listeners[3] = table.getEntry("d").addListener((event) -> {
-        if (getControlMode().isPID()) {
-          setD(event.value.getDouble());
-        }
-      }, EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-
-      listeners[4] = table.getEntry("f").addListener((event) -> {
-        if (getControlMode().isPID()) {
-          setF(event.value.getDouble());
-        }
-      }, EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-
-      listeners[5] = table.getEntry("Enabled").addListener((event) -> {
-        if (event.value.getBoolean()) {
-          enable();
-        } else {
-          disable();
-        }
-      }, EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-
-      listeners[6] = table.getEntry("Value").addListener(
-          (event) -> set(event.value.getDouble()),
-          EntryListenerFlags.kNew | EntryListenerFlags.kUpdate);
-    }
-    return listeners;
-  }
-
-
 }

wpilibj/src/main/java/edu/wpi/first/wpilibj/Compressor.java

@@ -35,7 +35,6 @@ public class Compressor extends SensorBase implements LiveWindowSendable {
    * @param module The PCM CAN device ID (0 - 62 inclusive)
    */
   public Compressor(int module) {
-    m_table = null;
     m_module = (byte) module;
 
     m_compressorHandle = CompressorJNI.initializeCompressor((byte) module);
@@ -215,17 +214,15 @@ public class Compressor extends SensorBase implements LiveWindowSendable {
     return "Compressor";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_enabledEntry;
   private NetworkTableEntry m_pressureSwitchEntry;
   private int m_enabledListener;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_enabledEntry = m_table.getEntry("Enabled");
-      m_pressureSwitchEntry = m_table.getEntry("Pressure Switch");
+    if (subtable != null) {
+      m_enabledEntry = subtable.getEntry("Enabled");
+      m_pressureSwitchEntry = subtable.getEntry("Pressure Switch");
       updateTable();
     } else {
       m_enabledEntry = null;
@@ -233,11 +230,6 @@ public class Compressor extends SensorBase implements LiveWindowSendable {
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_enabledEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/Counter.java

@@ -557,25 +557,18 @@ public class Counter extends SensorBase implements CounterBase, LiveWindowSendab
     return "Counter";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/DigitalInput.java

@@ -106,14 +106,12 @@ public class DigitalInput extends DigitalSource implements LiveWindowSendable {
     return "Digital Input";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
@@ -129,12 +127,6 @@ public class DigitalInput extends DigitalSource implements LiveWindowSendable {
   }
 
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
-
   @Override
   public void startLiveWindowMode() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/DigitalOutput.java

@@ -205,16 +205,14 @@ public class DigitalOutput extends DigitalSource implements LiveWindowSendable {
     return "Digital Output";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
   private int m_valueListener;
 
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
@@ -222,12 +220,6 @@ public class DigitalOutput extends DigitalSource implements LiveWindowSendable {
   }
 
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
-
   @Override
   public void updateTable() {
     // TODO: Put current value.

wpilibj/src/main/java/edu/wpi/first/wpilibj/DoubleSolenoid.java

@@ -176,26 +176,19 @@ public class DoubleSolenoid extends SolenoidBase implements LiveWindowSendable {
     return "Double Solenoid";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
   private int m_valueListener;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/Encoder.java

@@ -577,18 +577,16 @@ public class Encoder extends SensorBase implements CounterBase, PIDSource, LiveW
     return "Encoder";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_speedEntry;
   private NetworkTableEntry m_distanceEntry;
   private NetworkTableEntry m_distancePerTickEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_speedEntry = m_table.getEntry("Speed");
-      m_distanceEntry = m_table.getEntry("Distance");
-      m_distancePerTickEntry = m_table.getEntry("Distance per Tick");
+    if (subtable != null) {
+      m_speedEntry = subtable.getEntry("Speed");
+      m_distanceEntry = subtable.getEntry("Distance");
+      m_distancePerTickEntry = subtable.getEntry("Distance per Tick");
       updateTable();
     } else {
       m_speedEntry = null;
@@ -597,11 +595,6 @@ public class Encoder extends SensorBase implements CounterBase, PIDSource, LiveW
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_speedEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/GyroBase.java

@@ -60,25 +60,18 @@ public abstract class GyroBase extends SensorBase implements Gyro, PIDSource, Li
     return "Gyro";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/PIDController.java

@@ -695,7 +695,6 @@ public class PIDController implements PIDInterface, LiveWindowSendable, Controll
     return "PIDController";
   }
 
-  private NetworkTable m_table;
   @SuppressWarnings("MemberName")
   private NetworkTableEntry m_pEntry;
   @SuppressWarnings("MemberName")
@@ -741,7 +740,6 @@ public class PIDController implements PIDInterface, LiveWindowSendable, Controll
   @Override
   public void initTable(NetworkTable table) {
     removeListeners();
-    m_table = table;
     if (table != null) {
       m_pEntry = table.getEntry("p");
       m_pEntry.setDouble(getP());
@@ -826,12 +824,6 @@ public class PIDController implements PIDInterface, LiveWindowSendable, Controll
     return error;
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
-
   @Override
   public void updateTable() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/PWM.java

@@ -250,15 +250,13 @@ public class PWM extends SensorBase implements LiveWindowSendable {
     return "Speed Controller";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
   private int m_valueListener;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
@@ -272,11 +270,6 @@ public class PWM extends SensorBase implements LiveWindowSendable {
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void startLiveWindowMode() {
     setSpeed(0); // Stop for safety

wpilibj/src/main/java/edu/wpi/first/wpilibj/PowerDistributionPanel.java

@@ -118,21 +118,19 @@ public class PowerDistributionPanel extends SensorBase implements LiveWindowSend
   /*
    * Live Window code, only does anything if live window is activated.
    */
-  private NetworkTable m_table;
   private NetworkTableEntry[] m_chanEntry;
   private NetworkTableEntry m_voltageEntry;
   private NetworkTableEntry m_totalCurrentEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
+    if (subtable != null) {
       m_chanEntry = new NetworkTableEntry[16];
       for (int i = 0; i < m_chanEntry.length; i++) {
-        m_chanEntry[i] = m_table.getEntry("Chan" + i);
+        m_chanEntry[i] = subtable.getEntry("Chan" + i);
       }
-      m_voltageEntry = m_table.getEntry("Voltage");
-      m_totalCurrentEntry = m_table.getEntry("TotalCurrent");
+      m_voltageEntry = subtable.getEntry("Voltage");
+      m_totalCurrentEntry = subtable.getEntry("TotalCurrent");
       updateTable();
     } else {
       m_chanEntry = null;
@@ -141,11 +139,6 @@ public class PowerDistributionPanel extends SensorBase implements LiveWindowSend
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_chanEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/Relay.java

@@ -337,26 +337,19 @@ public class Relay extends SensorBase implements MotorSafety, LiveWindowSendable
     return "Relay";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
   private int m_valueListener;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/Sendable.java

@@ -21,13 +21,6 @@ public interface Sendable {
    */
   void initTable(NetworkTable subtable);
 
-  /**
-   * The table that is associated with this {@link Sendable}.
-   *
-   * @return the table that is currently associated with the {@link Sendable}.
-   */
-  NetworkTable getTable();
-
   /**
    * The string representation of the named data type that will be used by the smart dashboard for
    * this {@link Sendable}.

wpilibj/src/main/java/edu/wpi/first/wpilibj/Solenoid.java

@@ -105,26 +105,19 @@ public class Solenoid extends SolenoidBase implements LiveWindowSendable {
     return "Solenoid";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
   private int m_valueListener;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/Ultrasonic.java

@@ -399,25 +399,18 @@ public class Ultrasonic extends SensorBase implements PIDSource, LiveWindowSenda
     return "Ultrasonic";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_valueEntry;
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_valueEntry = m_table.getEntry("Value");
+    if (subtable != null) {
+      m_valueEntry = subtable.getEntry("Value");
       updateTable();
     } else {
       m_valueEntry = null;
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public void updateTable() {
     if (m_valueEntry != null) {

wpilibj/src/main/java/edu/wpi/first/wpilibj/buttons/Trigger.java

@@ -195,12 +195,10 @@ public abstract class Trigger implements Sendable {
     return "Button";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_pressedEntry;
 
   @Override
   public void initTable(NetworkTable table) {
-    m_table = table;
     if (table != null) {
       m_pressedEntry = table.getEntry("pressed");
       m_pressedEntry.setBoolean(get());
@@ -208,9 +206,4 @@ public abstract class Trigger implements Sendable {
       m_pressedEntry = null;
     }
   }
-
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
 }

wpilibj/src/main/java/edu/wpi/first/wpilibj/command/Command.java

@@ -564,7 +564,6 @@ public abstract class Command implements NamedSendable {
     return "Command";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_runningEntry;
   private NetworkTableEntry m_isParentedEntry;
   private int m_runningListener;
@@ -574,7 +573,6 @@ public abstract class Command implements NamedSendable {
     if (m_runningEntry != null) {
       m_runningEntry.removeListener(m_runningListener);
     }
-    m_table = table;
     if (table != null) {
       m_runningEntry = table.getEntry("running");
       m_isParentedEntry = table.getEntry("isParented");
@@ -593,10 +591,4 @@ public abstract class Command implements NamedSendable {
       m_isParentedEntry = null;
     }
   }
-
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
 }

wpilibj/src/main/java/edu/wpi/first/wpilibj/command/Scheduler.java

@@ -73,7 +73,6 @@ public class Scheduler implements NamedSendable {
    * A list of all {@link Command Commands} which need to be added.
    */
   private Vector<Command> m_additions = new Vector<>();
-  private NetworkTable m_table;
   private NetworkTableEntry m_namesEntry;
   private NetworkTableEntry m_idsEntry;
   private NetworkTableEntry m_cancelEntry;
@@ -315,11 +314,10 @@ public class Scheduler implements NamedSendable {
 
   @Override
   public void initTable(NetworkTable subtable) {
-    m_table = subtable;
-    if (m_table != null) {
-      m_namesEntry = m_table.getEntry("Names");
-      m_idsEntry = m_table.getEntry("Ids");
-      m_cancelEntry = m_table.getEntry("Cancel");
+    if (subtable != null) {
+      m_namesEntry = subtable.getEntry("Names");
+      m_idsEntry = subtable.getEntry("Ids");
+      m_cancelEntry = subtable.getEntry("Cancel");
       m_namesEntry.setStringArray(new String[0]);
       m_idsEntry.setDoubleArray(new double[0]);
       m_cancelEntry.setDoubleArray(new double[0]);
@@ -331,7 +329,7 @@ public class Scheduler implements NamedSendable {
   }
 
   private void updateTable() {
-    if (m_table != null) {
+    if (m_namesEntry != null && m_idsEntry != null && m_cancelEntry != null) {
       // Get the commands to cancel
       double[] toCancel = m_cancelEntry.getDoubleArray(new double[0]);
       if (toCancel.length > 0) {
@@ -365,11 +363,6 @@ public class Scheduler implements NamedSendable {
     }
   }
 
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
-
   @Override
   public String getSmartDashboardType() {
     return "Scheduler";

wpilibj/src/main/java/edu/wpi/first/wpilibj/command/Subsystem.java

@@ -110,7 +110,7 @@ public abstract class Subsystem implements NamedSendable {
       }
       m_defaultCommand = command;
     }
-    if (m_table != null) {
+    if (m_hasDefaultEntry != null && m_defaultEntry != null) {
       if (m_defaultCommand != null) {
         m_hasDefaultEntry.setBoolean(true);
         m_defaultEntry.setString(m_defaultCommand.getName());
@@ -150,7 +150,7 @@ public abstract class Subsystem implements NamedSendable {
    */
   void confirmCommand() {
     if (m_currentCommandChanged) {
-      if (m_table != null) {
+      if (m_hasCommandEntry != null && m_commandEntry != null) {
         if (m_currentCommand != null) {
           m_hasCommandEntry.setBoolean(true);
           m_commandEntry.setString(m_currentCommand.getName());
@@ -191,7 +191,6 @@ public abstract class Subsystem implements NamedSendable {
     return "Subsystem";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_hasDefaultEntry;
   private NetworkTableEntry m_defaultEntry;
   private NetworkTableEntry m_hasCommandEntry;
@@ -199,7 +198,6 @@ public abstract class Subsystem implements NamedSendable {
 
   @Override
   public void initTable(NetworkTable table) {
-    m_table = table;
     if (table != null) {
       m_hasDefaultEntry = table.getEntry("hasDefault");
       m_defaultEntry = table.getEntry("default");
@@ -220,9 +218,4 @@ public abstract class Subsystem implements NamedSendable {
       }
     }
   }
-
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
 }

wpilibj/src/main/java/edu/wpi/first/wpilibj/smartdashboard/SendableChooser.java

@@ -103,14 +103,12 @@ public class SendableChooser<V> implements Sendable {
     return "String Chooser";
   }
 
-  private NetworkTable m_table;
   private NetworkTableEntry m_tableDefault;
   private NetworkTableEntry m_tableSelected;
   private NetworkTableEntry m_tableOptions;
 
   @Override
   public void initTable(NetworkTable table) {
-    m_table = table;
     if (table != null) {
       m_tableDefault = table.getEntry(DEFAULT);
       m_tableSelected = table.getEntry(SELECTED);
@@ -121,9 +119,4 @@ public class SendableChooser<V> implements Sendable {
       }
     }
   }
-
-  @Override
-  public NetworkTable getTable() {
-    return m_table;
-  }
 }