Bug 120340 [implementation] Ensure IEditorInput.getAdapter(IJavaElement.class) works
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/JavaUI.java
* a file 'package-list'. <code>null</code> is a valid location entry and clears the current documentation
	 * location. The length of the location array must be equals to the number of archive paths passed.
	 * 
	 * 	@deprecated Javadoc is now attached to the classpath entry. 
	 * Evaluate the libraries classpath entry and reconfigure the Javadoc location there.
	 * 
	 * @since 3.0
	 */
	public static void setLibraryJavadocLocations(IPath[] archivePaths, URL[] urls) {
		
	}
	
	/**
	 * Returns the Javadoc location for an archive or <code>null</code> if no
	 * location is available.
	 * 
	 * @param archivePath the path of the library. This can be an workspace path
	 * or an external path in case of an external library.
	 * @return the Javadoc location for an archive or <code>null</code>.
	 * 
	 * @deprecated Javadoc is now attached to the classpath entry. Use {@link #getJavadocBaseLocation(IJavaElement)}
	 * with the archive's {@link IPackageFragmentRoot} or use {@link #getLibraryJavadocLocation(IClasspathEntry)}
	 * with the archive's {@link IClasspathEntry}.
	 * 
	 * @since 2.0
	 */	
	public static URL getLibraryJavadocLocation(IPath archivePath) {
		return null;
	}