Bug 25737 Control+PERIOD does not navigate to next warning
If my CU has only Warnings, Control+PERIOD does not work. Why is this? On the ? Toolbar it is labeled "Next Problem". I am trying to fix warnings indicated by JDT's compiler such as non-externalized strings, and by CheckStyle. This Action should still be enabled when there are warning in the CU.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaMarkerAnnotation.java
if (isProblem() || isTask())
			return getMarker().getAttribute(IMarker.MESSAGE, ""); 
		return ""; 
	}
	/*
	 * @see IProblemAnnotation#isError()
	 */
	public boolean isError() {
		return fType == AnnotationType.ERROR;
	}
	/*
	 * @see IProblemAnnotation#isWarning()
	 */
	public boolean isWarning() {
		return fType == AnnotationType.WARNING;
	}
	
	/*
	 * @see IProblemAnnotation#isTemporary()
	 */
	public boolean isTemporary() {
		return false;
	}
	
	/*
	 * @see IProblemAnnotation#getArguments()
	 */
	public String[] getArguments() {
		if (isProblem())
			return Util.getProblemArgumentsFromMarker(getMarker().getAttribute(IJavaModelMarker.ARGUMENTS, ""));