Java Code Examples for org.eclipse.jdt.core.JavaModelException

protected T traverse(IPackageFragment pack, boolean stopOnFirstResult, TraversalState state) throws JavaModelException {
	T result = null;
	state.push(pack);
	IJavaElement[] children = pack.getChildren();
	for (IJavaElement iJavaElement : children) {
		if (iJavaElement instanceof IPackageFragment) {
			result = traverse((IPackageFragment) iJavaElement, stopOnFirstResult, state);
			if (stopOnFirstResult && result!=null)
				return result;
		}
	}
	Object[] resources = pack.getNonJavaResources();
	for (Object object : resources) {
		if (object instanceof IJarEntryResource) {
			result = traverse((IJarEntryResource) object, stopOnFirstResult, state);
			if (stopOnFirstResult && result!=null)
				return result;
		}
	}
	state.pop();
	return result;
}
 

protected IPackageFragmentRoot getJavaElement(final IFile file) {
	IJavaProject jp = JavaCore.create(file.getProject());
	if (!jp.exists())
		return null;
	IPackageFragmentRoot[] roots;
	try {
		roots = jp.getPackageFragmentRoots();
		for (IPackageFragmentRoot root : roots) {
			if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
				IResource resource2 = root.getUnderlyingResource();
				if (resource2.contains(file))
					return root;
			}
		}
	} catch (JavaModelException e) {
		if (!e.isDoesNotExist())
			log.error(e.getMessage(), e);
	}
	return null;
}
 

@Test
public void testCompletion_import_type() throws JavaModelException{
	ICompilationUnit unit = getWorkingCopy(
			"src/java/Foo.java",
			"import java.sq \n" +
					"public class Foo {\n"+
					"	void foo() {\n"+
					"   java.util.Ma\n"+
					"	}\n"+
			"}\n");

	int[] loc = findCompletionLocation(unit, "java.util.Ma");

	CompletionList list = server.completion(JsonMessageHelper.getParams(createCompletionRequest(unit, loc[0], loc[1]))).join().getRight();

	assertNotNull(list);
	assertEquals(1, list.getItems().size());
	CompletionItem item = list.getItems().get(0);
	assertEquals(CompletionItemKind.Interface, item.getKind());
	assertEquals("Map", item.getInsertText());
	assertNotNull(item.getTextEdit());
	assertTextEdit(3, 3, 15, "java.util.Map", item.getTextEdit());
	assertTrue(item.getFilterText().startsWith("java.util.Ma"));
	//Not checking the range end character
}
 

private static boolean isMoveStaticMemberAvailable(ASTNode declaration) throws JavaModelException {
	if (declaration instanceof MethodDeclaration) {
		IMethodBinding method = ((MethodDeclaration) declaration).resolveBinding();
		return method != null && RefactoringAvailabilityTesterCore.isMoveStaticAvailable((IMember) method.getJavaElement());
	} else if (declaration instanceof FieldDeclaration) {
		List<IMember> members = new ArrayList<>();
		for (Object fragment : ((FieldDeclaration) declaration).fragments()) {
			IVariableBinding variable = ((VariableDeclarationFragment) fragment).resolveBinding();
			if (variable != null) {
				members.add((IField) variable.getJavaElement());
			}
		}
		return RefactoringAvailabilityTesterCore.isMoveStaticMembersAvailable(members.toArray(new IMember[0]));
	} else if (declaration instanceof AbstractTypeDeclaration) {
		ITypeBinding type = ((AbstractTypeDeclaration) declaration).resolveBinding();
		return type != null && RefactoringAvailabilityTesterCore.isMoveStaticAvailable((IType) type.getJavaElement());
	}

	return false;
}
 

@Test
public void testRenameTypeParameter() throws JavaModelException, BadLocationException {
	IPackageFragment pack1 = sourceFolder.createPackageFragment("test1", false, null);

	String[] codes= {
			"package test1;\n",
			"public class A<T|*> {\n",
			"	private T t;\n",
			"	public T get() { return t; }\n",
			"}\n"
	};

	StringBuilder builder = new StringBuilder();
	Position pos = mergeCode(builder, codes);
	ICompilationUnit cu = pack1.createCompilationUnit("A.java", builder.toString(), false, null);


	Either<Range, PrepareRenameResult> result = prepareRename(cu, pos, "TT");
	assertNotNull(result.getLeft());
	assertTrue(result.getLeft().getStart().getLine() > 0);
}
 

private int compareInHierarchy(IType def1, IType def2) {
	if (JavaModelUtil.isSuperType(getHierarchy(def1), def2, def1)) {
		return 1;
	} else if (JavaModelUtil.isSuperType(getHierarchy(def2), def1, def2)) {
		return -1;
	}
	// interfaces after classes
	try {
		int flags1= getTypeFlags(def1);
		int flags2= getTypeFlags(def2);
		if (Flags.isInterface(flags1)) {
			if (!Flags.isInterface(flags2)) {
				return 1;
			}
		} else if (Flags.isInterface(flags2)) {
			return -1;
		}
	} catch (JavaModelException e) {
		// ignore
	}
	String name1= def1.getElementName();
	String name2= def2.getElementName();

	return getComparator().compare(name1, name2);
}
 

private String createEqualsMethodContent(EqualsHashCodeGenerationData data, IType objectClass)
        throws JavaModelException {
    StringBuffer content = new StringBuffer();
    String elementName = objectClass.getElementName();
    content.append(MethodContentGenerations.createEqualsContentPrefix(data, objectClass));
    content.append(elementName);
    content.append(" castOther = (");
    content.append(elementName);
    content.append(") other;\n");
    content.append("return new EqualsBuilder()");
    if (data.appendSuper()) {
        content.append(".appendSuper(super.equals(other))");
    }
    IField[] checkedFields = data.getCheckedFields();
    for (int i = 0; i < checkedFields.length; i++) {
        content.append(".append(");
        String fieldName = MethodContentGenerations.getFieldAccessorString(checkedFields[i],
                data.useGettersInsteadOfFields());
        content.append(fieldName);
        content.append(", castOther.");
        content.append(fieldName);
        content.append(")");
    }
    content.append(".isEquals();\n");
    return content.toString();
}
 

/**
 * Returns the visibility threshold from a type to a field.
 *
 * @param referencing the referencing type
 * @param referenced the referenced field
 * @param monitor the progress monitor to use
 * @return the visibility keyword corresponding to the threshold, or <code>null</code> for default visibility
 * @throws JavaModelException if the java elements could not be accessed
 */
private ModifierKeyword thresholdTypeToField(final IType referencing, final IField referenced, final IProgressMonitor monitor) throws JavaModelException {
	ModifierKeyword keyword= ModifierKeyword.PUBLIC_KEYWORD;
	final ICompilationUnit referencedUnit= referenced.getCompilationUnit();
	if (referenced.getDeclaringType().equals(referencing))
		keyword= ModifierKeyword.PRIVATE_KEYWORD;
	else {
		final ITypeHierarchy hierarchy= getTypeHierarchy(referencing, new SubProgressMonitor(monitor, 1));
		final IType[] types= hierarchy.getSupertypes(referencing);
		IType superType= null;
		for (int index= 0; index < types.length; index++) {
			superType= types[index];
			if (superType.equals(referenced.getDeclaringType())) {
				keyword= ModifierKeyword.PROTECTED_KEYWORD;
				return keyword;
			}
		}
	}
	final ICompilationUnit typeUnit= referencing.getCompilationUnit();
	if (referencedUnit != null && referencedUnit.equals(typeUnit))
		keyword= ModifierKeyword.PRIVATE_KEYWORD;
	else if (referencedUnit != null && typeUnit != null && referencedUnit.getParent().equals(typeUnit.getParent()))
		keyword= null;
	return keyword;
}
 

public Object[] getChildren(Object parent) {
	if (parent instanceof IParent) {
		IParent c= (IParent) parent;
		try {
			return filter(c.getChildren());
		} catch (JavaModelException x) {
			// https://bugs.eclipse.org/bugs/show_bug.cgi?id=38341
			// don't log NotExist exceptions as this is a valid case
			// since we might have been posted and the element
			// removed in the meantime.
			if (JavaPlugin.isDebug() || !x.isDoesNotExist())
				JavaPlugin.log(x);
		}
	}
	return NO_CHILDREN;
}
 

@Test
public void testGenerateToStringDisabled_enum() throws JavaModelException {
	//@formatter:off
	ICompilationUnit unit = fPackageP.createCompilationUnit("A.java", "package p;\r\n" +
			"\r\n" +
			"public enum A {\r\n" +
			"	MONDAY,\r\n" +
			"	TUESDAY;\r\n" +
			"	private String name;\r\n" +
			"}"
			, true, null);
	//@formatter:on
	CodeActionParams params = CodeActionUtil.constructCodeActionParams(unit, "String name");
	List<Either<Command, CodeAction>> codeActions = server.codeAction(params).join();
	Assert.assertNotNull(codeActions);
	Assert.assertFalse("The operation is not applicable to enums", CodeActionHandlerTest.containsKind(codeActions, JavaCodeActionKind.SOURCE_GENERATE_TO_STRING));
}
 

/**
 * Configure this type hierarchy by computing the supertypes only.
 */
protected void buildSupertypes() {
	IType focusType = getType();
	if (focusType == null)
		return;
	// get generic type from focus type
	IGenericType type;
	try {
		type = (IGenericType) ((JavaElement) focusType).getElementInfo();
	} catch (JavaModelException e) {
		// if the focus type is not present, or if cannot get workbench path
		// we cannot create the hierarchy
		return;
	}
	//NB: no need to set focus type on hierarchy resolver since no other type is injected
	//    in the hierarchy resolver, thus there is no need to check that a type is
	//    a sub or super type of the focus type.
	this.hierarchyResolver.resolve(type);

	// Add focus if not already in (case of a type with no explicit super type)
	if (!this.hierarchy.contains(focusType)) {
		this.hierarchy.addRootClass(focusType);
	}
}
 

private List<SearchMatch> getImplicitConstructorReferencesInClassCreations(WorkingCopyOwner owner, IProgressMonitor pm, RefactoringStatus status) throws JavaModelException {
	//XXX workaround for jdt core bug 23112
	SearchPattern pattern= SearchPattern.createPattern(fType, IJavaSearchConstants.REFERENCES, SearchUtils.GENERICS_AGNOSTIC_MATCH_RULE);
	IJavaSearchScope scope= RefactoringScopeFactory.create(fType);
	SearchResultGroup[] refs= RefactoringSearchEngine.search(pattern, owner, scope, pm, status);
	List<SearchMatch> result= new ArrayList<SearchMatch>();
	for (int i= 0; i < refs.length; i++) {
		SearchResultGroup group= refs[i];
		ICompilationUnit cu= group.getCompilationUnit();
		if (cu == null)
			continue;
		CompilationUnit cuNode= new RefactoringASTParser(ASTProvider.SHARED_AST_LEVEL).parse(cu, false);
		SearchMatch[] results= group.getSearchResults();
		for (int j= 0; j < results.length; j++) {
			SearchMatch searchResult= results[j];
			ASTNode node= ASTNodeSearchUtil.getAstNode(searchResult, cuNode);
			if (isImplicitConstructorReferenceNodeInClassCreations(node))
				result.add(searchResult);
		}
	}
	return result;
}
 

public static Object[] createPackageListInput(ICompilationUnit cu, String elementNameMatch){
	try{
		IJavaProject project= cu.getJavaProject();
		IPackageFragmentRoot[] roots= project.getPackageFragmentRoots();
		List<IPackageFragment> result= new ArrayList<IPackageFragment>();
		HashMap<String, Object> entered =new HashMap<String, Object>();
		for (int i= 0; i < roots.length; i++){
			if (canAddPackageRoot(roots[i])){
				getValidPackages(roots[i], result, entered, elementNameMatch);
			}
		}
		return result.toArray();
	} catch (JavaModelException e){
		JavaPlugin.log(e);
		return new Object[0];
	}
}
 

private JvmType findObjectTypeInJavaProject(/* @NonNull */ String signature, /* @NonNull */ URI resourceURI, boolean traverseNestedTypes)
		throws JavaModelException {
	IType type = findObjectTypeInJavaProject(resourceURI);
	if (type != null) {
		try {
			return createResourceAndFindType(resourceURI, type, signature, traverseNestedTypes);
		} catch (IOException ioe) {
			return null;
		} catch (WrappedException wrapped) {
			if (wrapped.getCause() instanceof IOException) {
				return null;
			}
			throw wrapped;
		}
	}
	return null;
}
 

private void createAbstractMethod(final IMethod sourceMethod, final CompilationUnitRewrite sourceRewriter, final CompilationUnit declaringCuNode, final AbstractTypeDeclaration destination, final TypeVariableMaplet[] mapping, final CompilationUnitRewrite targetRewrite, final Map<IMember, IncomingMemberVisibilityAdjustment> adjustments, final IProgressMonitor monitor, final RefactoringStatus status) throws JavaModelException {
	final MethodDeclaration oldMethod= ASTNodeSearchUtil.getMethodDeclarationNode(sourceMethod, declaringCuNode);
	if (JavaModelUtil.is50OrHigher(sourceMethod.getJavaProject()) && (fSettings.overrideAnnotation || JavaCore.ERROR.equals(sourceMethod.getJavaProject().getOption(JavaCore.COMPILER_PB_MISSING_OVERRIDE_ANNOTATION, true)))) {
		final MarkerAnnotation annotation= sourceRewriter.getAST().newMarkerAnnotation();
		annotation.setTypeName(sourceRewriter.getAST().newSimpleName("Override")); //$NON-NLS-1$
		sourceRewriter.getASTRewrite().getListRewrite(oldMethod, MethodDeclaration.MODIFIERS2_PROPERTY).insertFirst(annotation, sourceRewriter.createCategorizedGroupDescription(RefactoringCoreMessages.PullUpRefactoring_add_override_annotation, SET_PULL_UP));
	}
	final MethodDeclaration newMethod= targetRewrite.getAST().newMethodDeclaration();
	newMethod.setBody(null);
	newMethod.setConstructor(false);
	copyExtraDimensions(oldMethod, newMethod);
	newMethod.setJavadoc(null);
	int modifiers= getModifiersWithUpdatedVisibility(sourceMethod, Modifier.ABSTRACT | JdtFlags.clearFlag(Modifier.NATIVE | Modifier.FINAL, sourceMethod.getFlags()), adjustments, monitor, false, status);
	if (oldMethod.isVarargs())
		modifiers&= ~Flags.AccVarargs;
	newMethod.modifiers().addAll(ASTNodeFactory.newModifiers(targetRewrite.getAST(), modifiers));
	newMethod.setName(((SimpleName) ASTNode.copySubtree(targetRewrite.getAST(), oldMethod.getName())));
	copyReturnType(targetRewrite.getASTRewrite(), getDeclaringType().getCompilationUnit(), oldMethod, newMethod, mapping);
	copyParameters(targetRewrite.getASTRewrite(), getDeclaringType().getCompilationUnit(), oldMethod, newMethod, mapping);
	copyThrownExceptions(oldMethod, newMethod);
	copyTypeParameters(oldMethod, newMethod);
	ImportRewriteContext context= new ContextSensitiveImportRewriteContext(destination, targetRewrite.getImportRewrite());
	ImportRewriteUtil.addImports(targetRewrite, context, oldMethod, new HashMap<Name, String>(), new HashMap<Name, String>(), false);
	targetRewrite.getASTRewrite().getListRewrite(destination, destination.getBodyDeclarationsProperty()).insertAt(newMethod, ASTNodes.getInsertionIndex(newMethod, destination.bodyDeclarations()), targetRewrite.createCategorizedGroupDescription(RefactoringCoreMessages.PullUpRefactoring_add_abstract_method, SET_PULL_UP));
}
 

protected static List<ASTNode> getDeclarationNodes(final CompilationUnit cuNode, final List<IMember> members) throws JavaModelException {
	final List<ASTNode> result= new ArrayList<ASTNode>(members.size());
	for (final Iterator<IMember> iterator= members.iterator(); iterator.hasNext();) {
		final IMember member= iterator.next();
		ASTNode node= null;
		if (member instanceof IField) {
			if (Flags.isEnum(member.getFlags()))
				node= ASTNodeSearchUtil.getEnumConstantDeclaration((IField) member, cuNode);
			else
				node= ASTNodeSearchUtil.getFieldDeclarationFragmentNode((IField) member, cuNode);
		} else if (member instanceof IType)
			node= ASTNodeSearchUtil.getAbstractTypeDeclarationNode((IType) member, cuNode);
		else if (member instanceof IMethod)
			node= ASTNodeSearchUtil.getMethodDeclarationNode((IMethod) member, cuNode);
		if (node != null)
			result.add(node);
	}
	return result;
}
 

@Override
protected boolean canHandle(IStructuredSelection selection) {
	if (selection.size() != 1)
		return false;

	try {
		Object element= selection.getFirstElement();
		if (element instanceof IJavaProject) {
			return ClasspathModifier.isSourceFolder((IJavaProject)element);
		} else if (element instanceof IPackageFragmentRoot) {
			IPackageFragmentRoot packageFragmentRoot= ((IPackageFragmentRoot) element);
			if (packageFragmentRoot.getKind() != IPackageFragmentRoot.K_SOURCE)
				return false;

			return packageFragmentRoot.getJavaProject() != null;
		}
	} catch (JavaModelException e) {
	}
	return false;
}
 

@Override
public boolean canEnable() throws JavaModelException {
	if (!super.canEnable() || fJavaElements.length == 0) {
		return false;
	}

	for (int i= 0; i < fJavaElements.length; i++) {
		if (fJavaElements[i] instanceof IMember) {
			IMember member= (IMember) fJavaElements[i];
			// we can copy some binary members, but not all
			if (member.isBinary() && member.getSourceRange() == null) {
				return false;
			}
		}
	}

	return true;
}
 

/**
 * @see IJavaProject
 */
public IPath getOutputLocation() throws JavaModelException {
	// Do not create marker while getting output location
	JavaModelManager.PerProjectInfo perProjectInfo = getPerProjectInfo();
	IPath outputLocation = perProjectInfo.outputLocation;
	if (outputLocation != null) return outputLocation;

	// force to read classpath - will position output location as well
	getRawClasspath();

	outputLocation = perProjectInfo.outputLocation;
	if (outputLocation == null) {
		return defaultOutputLocation();
	}
	return outputLocation;
}
 

private static void addImports(CompilationUnit root, ICompilationUnit unit, String[] favourites, ImportRewrite importRewrite, AST ast, ASTRewrite astRewrite, SimpleName node, boolean isMethod) throws JavaModelException {
	String name = node.getIdentifier();
	String[] imports = SimilarElementsRequestor.getStaticImportFavorites(unit, name, isMethod, favourites);
	if (imports.length > 1) {
		// See https://github.com/redhat-developer/vscode-java/issues/1472
		return;
	}
	for (int i = 0; i < imports.length; i++) {
		String curr = imports[i];
		String qualifiedTypeName = Signature.getQualifier(curr);
		String res = importRewrite.addStaticImport(qualifiedTypeName, name, isMethod, new ContextSensitiveImportRewriteContext(root, node.getStartPosition(), importRewrite));
		int dot = res.lastIndexOf('.');
		if (dot != -1) {
			String usedTypeName = importRewrite.addImport(qualifiedTypeName);
			Name newName = ast.newQualifiedName(ast.newName(usedTypeName), ast.newSimpleName(name));
			astRewrite.replace(node, newName, null);
		}
	}
}
 

/**
 * Finds every type in the project whose simple name matches
 * the prefix, informing the requestor of each hit. The requestor
 * is polled for cancellation at regular intervals.
 *
 * <p>The <code>partialMatch</code> argument indicates partial matches
 * should be considered.
 */
private void findAllTypes(String prefix, boolean partialMatch, int acceptFlags, IJavaElementRequestor requestor) {
	int count= this.packageFragmentRoots.length;
	for (int i= 0; i < count; i++) {
		if (requestor.isCanceled())
			return;
		IPackageFragmentRoot root= this.packageFragmentRoots[i];
		IJavaElement[] packages= null;
		try {
			packages= root.getChildren();
		} catch (JavaModelException npe) {
			continue; // the root is not present, continue;
		}
		if (packages != null) {
			for (int j= 0, packageCount= packages.length; j < packageCount; j++) {
				if (requestor.isCanceled())
					return;
				seekTypes(prefix, (IPackageFragment) packages[j], partialMatch, acceptFlags, requestor);
			}
		}
	}
}
 

public GenerateConstructorUsingFieldsSelectionDialog(Shell parent, ILabelProvider labelProvider, GenerateConstructorUsingFieldsContentProvider contentProvider, CompilationUnitEditor editor, IType type, IMethodBinding[] superConstructors) throws JavaModelException {
	super(parent, labelProvider, contentProvider, editor, type, true);
	fTreeViewerAdapter= new GenerateConstructorUsingFieldsTreeViewerAdapter();

	fSuperConstructors= superConstructors;

	IDialogSettings dialogSettings= JavaPlugin.getDefault().getDialogSettings();
	fGenConstructorSettings= dialogSettings.getSection(SETTINGS_SECTION);
	if (fGenConstructorSettings == null) {
		fGenConstructorSettings= dialogSettings.addNewSection(SETTINGS_SECTION);
		fGenConstructorSettings.put(OMIT_SUPER, false);
	}

	final boolean isEnum= type.isEnum();
	fOmitSuper= fGenConstructorSettings.getBoolean(OMIT_SUPER) || isEnum;
	if (isEnum)
		setVisibility(Modifier.PRIVATE);
}
 

@Override
public boolean isImplementedInSupertype(final IType objectClass, final String interfaceName)
        throws JavaModelException {

    String simpleName = getSimpleInterfaceName(interfaceName);

    ITypeHierarchy typeHierarchy = objectClass.newSupertypeHierarchy(null);
    IType[] interfaces = typeHierarchy.getAllInterfaces();
    for (int i = 0; i < interfaces.length; i++) {
        if (interfaces[i].getElementName().equals(simpleName)) {
            IType in = interfaces[i];
            IType[] types = typeHierarchy.getImplementingClasses(in);
            for (int j = 0; j < types.length; j++) {
                if (!types[j].getFullyQualifiedName().equals(objectClass.getFullyQualifiedName())) {
                    return true;
                }
            }
            break;
        }
    }
    return false;
}
 

@Override
public int category(Object element) {
	if (element instanceof IType) {
		IType type= (IType) element;
		try {
			if (type.isAnonymous() || type.isLambda()) {
				return ANONYM;
			}
		} catch (JavaModelException e1) {
			if (type.getElementName().length() == 0) {
				return ANONYM;
			}
		}
		try {
			int flags= getTypeFlags(type);
			if (Flags.isInterface(flags)) {
				return INTERFACE;
			} else {
				return CLASS;
			}
		} catch (JavaModelException e) {
			// ignore
		}
	}
	return OTHER;
}
 

private void collectMatches(Set<Match> matches, IJavaElement element) {
	//TODO: copied from JavaSearchResult:
	Match[] m= getMatches(element);
	if (m.length != 0) {
		for (int i= 0; i < m.length; i++) {
			matches.add(m[i]);
		}
	}
	if (element instanceof IParent) {
		IParent parent= (IParent) element;
		try {
			IJavaElement[] children= parent.getChildren();
			for (int i= 0; i < children.length; i++) {
				collectMatches(matches, children[i]);
			}
		} catch (JavaModelException e) {
			// we will not be tracking these results
		}
	}
}
 

@Override
public Change createChange(IProgressMonitor pm) throws JavaModelException {
	IPackageFragmentRoot[] roots= getPackageFragmentRoots();
	pm.beginTask("", roots.length); //$NON-NLS-1$
	CompositeChange composite= new DynamicValidationStateChange(RefactoringCoreMessages.ReorgPolicy_move_source_folder);
	composite.markAsSynthetic();
	IJavaProject destination= getDestinationJavaProject();
	for (int i= 0; i < roots.length; i++) {
		if (destination == null) {
			composite.add(new MovePackageFragmentRootChange(roots[i], (IContainer) getResourceDestination(), null));
		} else {
			composite.add(createChange(roots[i], destination));
		}
		pm.worked(1);
	}
	pm.done();
	return composite;
}
 

public JavaLaunchCodeMining(IJavaElement element, String label, String mode, IDocument document,
		ICodeMiningProvider provider) throws JavaModelException, BadLocationException {
	super(element, document, provider, e -> {
		JavaApplicationLaunchShortcut shortcut = new JavaApplicationLaunchShortcut();
		shortcut.launch(new StructuredSelection(element), mode);
	});
	super.setLabel(label);
}
 

public void update() {
	boolean enabled= false;
	ISourceReference ref= getSourceReference();
	if (ref != null) {
		ISourceRange range;
		try {
			range= ref.getSourceRange();
			enabled= range != null && range.getLength() > 0;
		} catch (JavaModelException e) {
			// enabled= false;
		}
	}
	setEnabled(enabled);
}
 

public void open() {
	try {
		String returnTypeSignature= fMethod.getReturnType();
		int kind= Signature.getTypeSignatureKind(returnTypeSignature);
		if (kind == Signature.ARRAY_TYPE_SIGNATURE) {
			returnTypeSignature= Signature.getElementType(returnTypeSignature);
		} else if (kind == Signature.CLASS_TYPE_SIGNATURE) {
			returnTypeSignature= Signature.getTypeErasure(returnTypeSignature);
		}
		String returnType= Signature.toString(returnTypeSignature);

		String[][] resolvedType= fMethod.getDeclaringType().resolveType(returnType);
		if (resolvedType == null || resolvedType.length == 0) {
			openMethodAndShowErrorInStatusLine();
			return;
		}

		String typeName= JavaModelUtil.concatenateName(resolvedType[0][0], resolvedType[0][1]);
		IType type= fMethod.getJavaProject().findType(typeName, (IProgressMonitor)null);
		if (type != null) {
			fOpenAction.run(new StructuredSelection(type));
			return;
		}
		openMethodAndShowErrorInStatusLine();
	} catch (JavaModelException e) {
		JavaPlugin.log(e);
		return;
	}
}
 

/** Create a {@link TypeFinder} wrapper for the given Java project.
 *
 * <p>The wrapper invokes {@link IJavaProject#findType(String)} on the given project.
 *
 * @param project the project to wrap.
 * @return the type finder based on the given Java project.
 */
public TypeFinder toTypeFinder(final IJavaProject project) {
	return new TypeFinder() {
		@Override
		public IType findType(String typeName) throws JavaModelException {
			return project.findType(typeName);
		}
	};
}