Bug 92563 [content assist] Warm code assist performance for many types
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/GenericJavaTypeProposal.java
String[] keys= new String[chKeys.length];
		for (int i= 0; i < keys.length; i++) {
			keys[i]= String.valueOf(chKeys[0]);
		}
		final ASTParser parser= ASTParser.newParser(AST.JLS3);
		parser.setProject(fCompilationUnit.getJavaProject());
		parser.setResolveBindings(true);
		final Map bindings= new HashMap();
		ASTRequestor requestor= new ASTRequestor() {
			public void acceptBinding(String bindingKey, IBinding binding) {
				bindings.put(bindingKey, binding);
			}
		};
		parser.createASTs(new ICompilationUnit[0], keys, requestor, null);
		if (bindings.size() > 0)
			return (ITypeBinding) bindings.get(keys[0]);
		return null;
	}
	/**
	 * Returns the java mode type of this type proposal.
	 *
	 * @return the java mode type of this type proposal
	 * @throws JavaModelException
	 */
	private IType getProposedType() throws JavaModelException {
		if (fCompilationUnit != null) {
			String fullType= SignatureUtil.stripSignatureToFQN(String.valueOf(fProposal.getSignature()));
			return fCompilationUnit.getJavaProject().findType(fullType);
		}
		return null;