clear fields after test run to avoid leaks when the test class instance stuck in queues

java/testFramework/src/com/intellij/debugger/ExecutionWithDebuggerToolsTestCase.java

@@ -140,6 +140,9 @@ public abstract class ExecutionWithDebuggerToolsTestCase extends ExecutionTestCa
   protected void tearDown() throws Exception {
     ThreadTracker.awaitThreadTerminationWithParentParentGroup("JDI main", 100, TimeUnit.SECONDS);
     try {
+      myDebugProcess = null;
+      myPauseScriptListener = null;
+      myRatherLaterRequests.clear();
       super.tearDown();
     }
     finally {
@@ -150,6 +153,7 @@ public abstract class ExecutionWithDebuggerToolsTestCase extends ExecutionTestCa
   protected void throwExceptionsIfAny() {
     synchronized (myException) {
       CompoundRuntimeException.throwIfNotEmpty(myException);
+      myException.clear();
     }
   }
 

java/testFramework/src/com/intellij/execution/ExecutionTestCase.java

@@ -132,7 +132,9 @@ public abstract class ExecutionTestCase extends IdeaTestCase {
   protected void tearDown() throws Exception {
     if (myCompilerTester != null) {
       myCompilerTester.tearDown();
+      myCompilerTester = null;
     }
+    myChecker = null;
     EdtTestUtil.runInEdtAndWait(() -> super.tearDown());
     //myChecker.checkValid(getTestProjectJdk());
     //probably some thread is destroyed right now because of log exception