Java cleanups (#1776)

* Remove extra ';'s
* Remove unnecessary conversions to String
* Use StandardCharsets object
* Replace infinite while with check for interrupted thread
* Remove redundant local vars
* Remove redundant throws clause
* Remove redundant primitive wrapping
* Fix malformed Nested class test
* Remove unnecessary unboxing
* Remove unnecessary explicit type argument
* Replace lambdas with method references
* Replace statement lambdas with expression lambdas
* Replace null check with method call
* Replace number comparison with method call
* Fix broken javadoc comments
* Replace Arrays.asList with singletonLists
* Remove excessive lambda usage
* Remove redundant string operation
* Remove redundant type casts
* Remove unnecessary returns
* Remove redundant suppressions
* Fix unresolved file reference
* static analysis fixes

wpilibjIntegrationTests/src/main/java/edu/wpi/first/wpilibj/AnalogPotentiometerTest.java

@@ -32,7 +32,7 @@ public class AnalogPotentiometerTest extends AbstractComsSetup {
   private static final double DOUBLE_COMPARISON_DELTA = 2.0;
 
   @Before
-  public void setUp() throws Exception {
+  public void setUp() {
     m_analogIO = TestBench.getAnalogCrossConnectFixture();
     m_potSource = new FakePotentiometerSource(m_analogIO.getOutput(), 360);
     m_pot = new AnalogPotentiometer(m_analogIO.getInput(), 360.0, 0);
@@ -40,7 +40,7 @@ public class AnalogPotentiometerTest extends AbstractComsSetup {
   }
 
   @After
-  public void tearDown() throws Exception {
+  public void tearDown() {
     m_potSource.reset();
     m_pot.close();
     m_analogIO.teardown();