Bug 30727 exclusion filters: cannot remove [build path]
20030129 create a jproject and a src folder in it add 2 packages to it a.b and c.d exclude c/d/ from the classpath open the java build path dialog, select the source folders expand the tree node select 'Exclusion filter: /c/d/' press 'Remove' seems to be removed, right? wrong. open the dialog again - the filter for /c/d is still there
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/SourceContainerWorkbookPage.java
private ListDialogField fClassPathList;
	private IJavaProject fCurrJProject;
	private IPath fProjPath;
	
	private Control fSWTControl;
	
	private IWorkspaceRoot fWorkspaceRoot;
	
	private TreeListDialogField fFoldersList;
	
	private StringDialogField fOutputLocationField;
	
	private SelectionButtonDialogField fUseFolderOutputs;
	
	private final int IDX_ADD= 0;
	private final int IDX_EDIT= 2;
	private final int IDX_REMOVE= 3;	
	public SourceContainerWorkbookPage(IWorkspaceRoot root, ListDialogField classPathList, StringDialogField outputLocationField) {
		fWorkspaceRoot= root;
		fClassPathList= classPathList;
	
		fOutputLocationField= outputLocationField;
		
		fSWTControl= null;
				
		SourceContainerAdapter adapter= new SourceContainerAdapter();