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
outputFolderAlsoSourceFolder= true;
			}
		}
		
		IStatus status= JavaConventions.validateClasspath(fCurrJProject, entries, path);
		if (!status.isOK()) {
			fBuildPathStatus.setError(status.getMessage());
			return;
		}
		if (res != null && res.exists() && fCurrJProject.exists()) {
			try {
				IPath oldOutputLocation= fCurrJProject.getOutputLocation();
				if (!oldOutputLocation.equals(fOutputLocationPath) && !outputFolderAlsoSourceFolder) {
					if (((IContainer)res).members().length > 0) {
						fBuildPathStatus.setWarning(NewWizardMessages.getString("BuildPathsBlock.warning.OutputFolderNotEmpty")); 
						return;
					}
				}
			} catch (CoreException e) {
				JavaPlugin.log(e);
			}
		}
				
		fBuildPathStatus.setOK();
	}
	
	
	
	public static void createProject(IProject project, IPath locationPath, IProgressMonitor monitor) throws CoreException {