Bug 36625 "Copy Trace" Action in "Failure Trace" View enabled for empty table.
The "Copy Trace" action should probably be hidden or unavailable when there is nothing in the "Failure Trace" view. Currently the user is given the option to copy a trace of nothing to the clipboard.
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/ui/FailureTraceView.java
clear();
		TableItem tableItem= new TableItem(fTable, SWT.NONE);
		tableItem.setText(text);
	}
	
	/**
	 * Clears the non-stack trace info
	 */
	public void clear() {
		fTable.removeAll();
		fInputTrace= null;
	}
	
	private String filterStack(String stackTrace) {	
		if (!JUnitPreferencePage.getFilterStack() || stackTrace == null) 
			return stackTrace;
			
		StringWriter stringWriter= new StringWriter();
		PrintWriter printWriter= new PrintWriter(stringWriter);
		StringReader stringReader= new StringReader(stackTrace);
		BufferedReader bufferedReader= new BufferedReader(stringReader);	
			
		String line;
		String[] patterns= JUnitPreferencePage.getFilterPatterns();
		try {	
			while ((line= bufferedReader.readLine()) != null) {
				if (!filterLine(patterns, line))
					printWriter.println(line);
			}
		} catch (IOException e) {