Log VM install changes during JDT debug tests

See: #782

Author: trancexpress

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/AbstractDebugTest.java

@@ -128,14 +128,17 @@
 import org.eclipse.jdt.debug.tests.core.LiteralTests17;
 import org.eclipse.jdt.debug.tests.refactoring.MemberParser;
 import org.eclipse.jdt.debug.ui.IJavaDebugUIConstants;
+import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
 import org.eclipse.jdt.internal.debug.core.model.JDIDebugTarget;
 import org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine;
 import org.eclipse.jdt.internal.debug.ui.BreakpointUtils;
 import org.eclipse.jdt.internal.debug.ui.IJDIPreferencesConstants;
 import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
 import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
 import org.eclipse.jdt.launching.IVMInstall;
+import org.eclipse.jdt.launching.IVMInstallChangedListener;
 import org.eclipse.jdt.launching.JavaRuntime;
+import org.eclipse.jdt.launching.PropertyChangeEvent;
 import org.eclipse.jdt.launching.environments.IExecutionEnvironment;
 import org.eclipse.jface.dialogs.ErrorDialog;
 import org.eclipse.jface.dialogs.MessageDialogWithToggle;
@@ -170,6 +173,10 @@
 @SuppressWarnings("deprecation")
 public abstract class AbstractDebugTest extends TestCase implements  IEvaluationListener {
 
+	static {
+		JavaRuntime.addVMInstallChangedListener(new LogVMInstallChanges());
+	}
+
 	public static final String MULTI_OUTPUT_PROJECT_NAME = "MultiOutput";
 	public static final String BOUND_EE_PROJECT_NAME = "BoundEE";
 	public static final String ONE_FOUR_PROJECT_NAME = "DebugTests";
@@ -3090,4 +3097,35 @@ private static String toString(Collection<IMarker> markers) {
 	public interface StackFrameSupplier {
 		IJavaStackFrame get() throws Exception;
 	}
+
+	private static void logVMChange(String message, IVMInstall vm) {
+		IStatus status = new Status(IStatus.INFO, JDIDebugPlugin.getUniqueIdentifier(),
+				message + " " + vm.getName() + ", location: " + vm.getInstallLocation(),
+				new RuntimeException("strack trace info"));
+		JDIDebugPlugin.log(status);
+	}
+
+	private static class LogVMInstallChanges implements IVMInstallChangedListener {
+
+		@Override
+		public void vmRemoved(IVMInstall vm) {
+			logVMChange("VM removed", vm);
+		}
+
+		@Override
+		public void vmChanged(PropertyChangeEvent event) {
+		}
+
+		@Override
+		public void vmAdded(IVMInstall vm) {
+			logVMChange("VM added", vm);
+
+		}
+
+		@Override
+		public void defaultVMInstallChanged(IVMInstall previous, IVMInstall current) {
+			logVMChange("Default VM changed", current);
+		}
+
+	}
 }