Bug 96048 Using the "Remove" button to remove source code file in the Java Build Path/Libraries does not remove path
Eclipse 3.1M7 Java 1.5.0_02 In the Java Build Path/Libraries tab, if a source code file has been attached to a library, then using the "Remove" button will not remove the path. Instead one needs to use "Edit" to clear the field. Steps to reproduce: 1. Attach src.jar to the rt.jar 2. Select "Source code attachment:" line 3. Click "Remove" (UI shows that there is no attachment) 4. Click "OK" to accept 5. Reopen Java Build Path/Libraries 6. Discover that src.jar is still attached to rt.jar
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/LibrariesWorkbookPage.java
Object elem= selElements.get(i);
			if (elem instanceof CPListElementAttribute) {
				CPListElementAttribute attrib= (CPListElementAttribute) elem;
				if (attrib.isInNonModifiableContainer()) {
					return false;
				}
				if (attrib.getKey().equals(CPListElement.ACCESSRULES)) {
					return ((IAccessRule[]) attrib.getValue()).length > 0;
				}
				if (attrib.getValue() == null) {
					return false;
				}
			} else if (elem instanceof CPListElement) {
				CPListElement curr= (CPListElement) elem;
				if (curr.getParentContainer() != null) {
					return false;
				}
			} else { 
				return false;
			}
		}
		return true;
	}	
	/**
	 * Method editEntry.
	 */
	private void editEntry() {
		List selElements= fLibrariesList.getSelectedElements();
		if (selElements.size() != 1) {
			return;