Bug 28510 java build path inconsistency [build path]
20021216 select rt.jar in the package explorer open properties it allows you to set the javadoc location but for source attachment you are sent somewhere else it's inconsistent - on the java build path they both look sort of the same (they sit under the same node in the tree)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/LibrariesWorkbookPage.java
fResult= openNewClassFolderDialog(null);
				fAdvSettings.put(DIALOGSTORE_SELECTED, 0);
			} else if (fAddFolderField.isSelected()) {
				fResult= openClassFolderDialog(null);
				fAdvSettings.put(DIALOGSTORE_SELECTED, 1);
			} else if (fAddContainerField.isSelected()) {
				String selected= fCombo.getText();
				for (int i = 0; i < fDescriptors.length; i++) {
					if (fDescriptors[i].getName().equals(selected)) {
						String title= NewWizardMessages.getString("LibrariesWorkbookPage.ContainerDialog.new.title"); 
						fResult= openContainerDialog(title, new ClasspathContainerWizard(fDescriptors[i], fCurrJProject, getRawClasspath()));
						fAdvSettings.put(DIALOGSTORE_CONTAINER_IDX, i);
						break;
					}
				}
				fAdvSettings.put(DIALOGSTORE_SELECTED, 2);
			}
			if (fResult != null) {
				super.okPressed();
			}
			
		}
		
		public CPListElement[] getResult() {
			return fResult;
		}
	}
	
	private IClasspathEntry[] getRawClasspath() {
		IClasspathEntry[] currEntries= new IClasspathEntry[fClassPathList.getSize()];