Bug 17618 Changing output location should delete all derived resources
F1 1) create a project (autobuild on) 2) import Java sources and resources 3) change output folder to project/bin ->all class files are removed (fine) 4) change output folder back to be the project -> all class files are removed (fine) 5) open project/bin -> all resources are still there Note: When opening the properties dialog on such a resource it is tagged as "Derived". Thus, it should be possible to remove all derived resources as long as they have been created by the Java builder.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathsBlock.java
public static interface IRemoveOldBinariesQuery {
		
		/**
		 * Do the callback. Returns <code>true</code> if .class files should be removed from the
		 * old output location.
		 */
		boolean doQuery(IPath oldOutputLocation) throws InterruptedException;
		
	}
	private IWorkspaceRoot fWorkspaceRoot;
	private CheckedListDialogField fClassPathList;
	private StringButtonDialogField fBuildPathDialogField;
	
	private StatusInfo fClassPathStatus;
	private StatusInfo fBuildPathStatus;
	private IJavaProject fCurrJProject;
		
	private IPath fOutputLocationPath;
	
	private IStatusChangeListener fContext;
	private Control fSWTWidget;