Bug 49655 StringIndexOutOfBoundsException on test failure [JUnit]
While testing the move to Ant 1.6.0 I was adjusting the org.eclipse.ant.core test suite (it had failures). I was reliably getting the following exception when test failures occurred: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.substring(String.java:1444) at org.eclipse.jdt.internal.junit.ui.TestRunnerViewPart.testFailed (TestRunnerViewPart.java:524) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient$7.run (RemoteTestRunnerClient.java:477) at org.eclipse.core.internal.runtime.InternalPlatform.run (InternalPlatform.java:813) at org.eclipse.core.runtime.Platform.run(Platform.java:457) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient.notifyTestFailed (RemoteTestRunnerClient.java:474) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient.access$16 (RemoteTestRunnerClient.java:471) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient$TraceProcessingState.r eadMessage(RemoteTestRunnerClient.java:125) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient.receiveMessage (RemoteTestRunnerClient.java:309) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient.access$30 (RemoteTestRunnerClient.java:308) at org.eclipse.jdt.internal.junit.ui.RemoteTestRunnerClient$ServerConnection.run (RemoteTestRunnerClient.java:235)
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/ui/TestRunnerViewPart.java
public StopAction() {
			setText(JUnitMessages.getString("TestRunnerViewPart.stopaction.text"));
			setToolTipText(JUnitMessages.getString("TestRunnerViewPart.stopaction.tooltip"));
			setDisabledImageDescriptor(JUnitPlugin.getImageDescriptor("dlcl16/stop.gif")); 
			setHoverImageDescriptor(JUnitPlugin.getImageDescriptor("clcl16/stop.gif")); 
			setImageDescriptor(JUnitPlugin.getImageDescriptor("elcl16/stop.gif")); 
		}
		public void run() {
			stopTest();
		}
	}
	private class RerunLastAction extends Action {
		public RerunLastAction() {
			setText(JUnitMessages.getString("TestRunnerViewPart.rerunaction.label")); 
			setToolTipText(JUnitMessages.getString("TestRunnerViewPart.rerunaction.tooltip")); 
			setDisabledImageDescriptor(JUnitPlugin.getImageDescriptor("dlcl16/relaunch.gif")); 
			setHoverImageDescriptor(JUnitPlugin.getImageDescriptor("clcl16/relaunch.gif")); 
			setImageDescriptor(JUnitPlugin.getImageDescriptor("elcl16/relaunch.gif")); 
		}
		
		public void run(){
			rerunTestRun();
		}
	}
	
	private class ToggleOrientationAction extends Action {