Java Code Examples for org.eclipse.jdt.internal.corext.util.JavaModelUtil#is50OrHigher()

private Statement createAddArrayHashCode(IVariableBinding binding) {
	MethodInvocation invoc= fAst.newMethodInvocation();
	if (JavaModelUtil.is50OrHigher(fRewrite.getCu().getJavaProject())) {
		invoc.setName(fAst.newSimpleName(METHODNAME_HASH_CODE));
		invoc.setExpression(getQualifiedName(JAVA_UTIL_ARRAYS));
		invoc.arguments().add(getThisAccessForHashCode(binding.getName()));
	} else {
		invoc.setName(fAst.newSimpleName(METHODNAME_HASH_CODE));
		final IJavaElement element= fType.getJavaElement();
		if (element != null && !"".equals(element.getElementName())) //$NON-NLS-1$
			invoc.setExpression(fAst.newSimpleName(element.getElementName()));
		invoc.arguments().add(getThisAccessForHashCode(binding.getName()));
		ITypeBinding type= binding.getType().getElementType();
		if (!Bindings.isVoidType(type)) {
			if (!type.isPrimitive() || binding.getType().getDimensions() >= 2)
				type= fAst.resolveWellKnownType(JAVA_LANG_OBJECT);
			if (!fCustomHashCodeTypes.contains(type))
				fCustomHashCodeTypes.add(type);
		}
	}
	return prepareAssignment(invoc);
}
 

/**
 * Returns the resource handle that corresponds to the element that was created or
 * will be created.
 * @return A resource or null if the page contains illegal values.
 * @since 3.0
 */
public IResource getModifiedResource() {
	IPackageFragmentRoot root= getPackageFragmentRoot();
	if (root != null) {
		IPackageFragment pack= root.getPackageFragment(getPackageText());
		IResource packRes= pack.getResource();
		if (isCreatePackageDocumentation()) {
			if (JavaModelUtil.is50OrHigher(getJavaProject())) {
				return pack.getCompilationUnit(PACKAGE_INFO_JAVA_FILENAME).getResource();
			} else if (packRes instanceof IFolder){
				return ((IFolder) packRes).getFile(PACKAGE_HTML_FILENAME);
			}
		}

		return packRes;
	}
	return null;
}
 

private static Expression getAssignedValue(ProposalParameter context) {
	ASTNode parent = context.accessNode.getParent();
	ASTRewrite astRewrite = context.astRewrite;
	IJavaProject javaProject = context.compilationUnit.getJavaProject();
	IMethodBinding getter = findGetter(context);
	Expression getterExpression = null;
	if (getter != null) {
		getterExpression = astRewrite.getAST().newSimpleName("placeholder"); //$NON-NLS-1$
	}
	ITypeBinding type = context.variableBinding.getType();
	boolean is50OrHigher = JavaModelUtil.is50OrHigher(javaProject);
	Expression result = GetterSetterUtil.getAssignedValue(parent, astRewrite, getterExpression, type, is50OrHigher);
	if (result != null && getterExpression != null && getterExpression.getParent() != null) {
		getterExpression.getParent().setStructuralProperty(getterExpression.getLocationInParent(), createMethodInvocation(context, getter, null));
	}
	return result;
}
 

private static Java50Fix createFix(CompilationUnit compilationUnit, IProblemLocation problem, String annotation, String label) {
	ICompilationUnit cu= (ICompilationUnit)compilationUnit.getJavaElement();
	if (!JavaModelUtil.is50OrHigher(cu.getJavaProject()))
		return null;

	ASTNode selectedNode= problem.getCoveringNode(compilationUnit);
	if (selectedNode == null)
		return null;

	ASTNode declaringNode= getDeclaringNode(selectedNode);
	if (!(declaringNode instanceof BodyDeclaration))
		return null;

	BodyDeclaration declaration= (BodyDeclaration) declaringNode;

	AnnotationRewriteOperation operation= new AnnotationRewriteOperation(declaration, annotation);

	return new Java50Fix(label, compilationUnit, new CompilationUnitRewriteOperation[] {operation});
}
 

public static ICleanUpFix createCleanUp(CompilationUnit compilationUnit, boolean convertForLoops, boolean convertIterableForLoops, boolean makeFinal) {
	if (!JavaModelUtil.is50OrHigher(compilationUnit.getJavaElement().getJavaProject()))
		return null;

	if (!convertForLoops && !convertIterableForLoops)
		return null;

	List<ConvertLoopOperation> operations= new ArrayList<ConvertLoopOperation>();
	ControlStatementFinder finder= new ControlStatementFinder(convertForLoops, convertIterableForLoops, makeFinal, operations);
	compilationUnit.accept(finder);

	if (operations.isEmpty())
		return null;

	CompilationUnitRewriteOperation[] ops= operations.toArray(new CompilationUnitRewriteOperation[operations.size()]);
	return new ConvertLoopFix(FixMessages.ControlStatementsFix_change_name, compilationUnit, ops, null);
}
 

public static ICleanUpFix createCleanUp(CompilationUnit compilationUnit, IProblemLocation[] locations, int problemID) {
	ICompilationUnit cu= (ICompilationUnit) compilationUnit.getJavaElement();
	if (!JavaModelUtil.is50OrHigher(cu.getJavaProject()))
		return null;

	List<CompilationUnitRewriteOperation> operations= new ArrayList<CompilationUnitRewriteOperation>();
	if (locations == null) {
		org.eclipse.jdt.core.compiler.IProblem[] problems= compilationUnit.getProblems();
		locations= new IProblemLocation[problems.length];
		for (int i= 0; i < problems.length; i++) {
			if (problems[i].getID() == problemID)
				locations[i]= new ProblemLocation(problems[i]);
		}
	}

	createAddNullAnnotationOperations(compilationUnit, locations, operations);
	createRemoveRedundantNullAnnotationsOperations(compilationUnit, locations, operations);
	if (operations.size() == 0)
		return null;
	CompilationUnitRewriteOperation[] operationsArray= operations.toArray(new CompilationUnitRewriteOperation[operations.size()]);
	return new NullAnnotationsFix(FixMessages.NullAnnotationsFix_add_annotation_change_name, compilationUnit, operationsArray);
}
 

private Expression getAssignedValue(ParameterObjectFactory pof, String parameterName, IJavaProject javaProject, RefactoringStatus status, ASTRewrite rewrite, ParameterInfo pi, boolean useSuper, ITypeBinding typeBinding, Expression qualifier, ASTNode replaceNode, ITypeRoot typeRoot) {
	AST ast= rewrite.getAST();
	boolean is50OrHigher= JavaModelUtil.is50OrHigher(javaProject);
	Expression assignedValue= handleSimpleNameAssignment(replaceNode, pof, parameterName, ast, javaProject, useSuper);
	if (assignedValue == null) {
		NullLiteral marker= qualifier == null ? null : ast.newNullLiteral();
		Expression fieldReadAccess= pof.createFieldReadAccess(pi, parameterName, ast, javaProject, useSuper, marker);
		assignedValue= GetterSetterUtil.getAssignedValue(replaceNode, rewrite, fieldReadAccess, typeBinding, is50OrHigher);
		boolean markerReplaced= replaceMarker(rewrite, qualifier, assignedValue, marker);
		if (markerReplaced) {
			switch (qualifier.getNodeType()) {
				case ASTNode.METHOD_INVOCATION:
				case ASTNode.CLASS_INSTANCE_CREATION:
				case ASTNode.SUPER_METHOD_INVOCATION:
				case ASTNode.PARENTHESIZED_EXPRESSION:
					status.addWarning(RefactoringCoreMessages.ExtractClassRefactoring_warning_semantic_change, JavaStatusContext.create(typeRoot, replaceNode));
					break;
			}
		}
	}
	return assignedValue;
}
 

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));
}
 

private InlineTargetCompilationUnit(CompilationUnitRewrite cuRewrite, Name[] references, InlineConstantRefactoring refactoring, HashSet<SimpleName> staticImportsInInitializer) {
	fInitializer= refactoring.getInitializer();
	fInitializerUnit= refactoring.getDeclaringCompilationUnit();

	fCuRewrite= cuRewrite;
	fSourceRangeComputer= new TightSourceRangeComputer();
	fCuRewrite.getASTRewrite().setTargetSourceRangeComputer(fSourceRangeComputer);
	if (refactoring.getRemoveDeclaration() && refactoring.getReplaceAllReferences() && cuRewrite.getCu().equals(fInitializerUnit))
		fDeclarationToRemove= refactoring.getDeclaration();
	else
		fDeclarationToRemove= null;

	fOriginalDeclaration= refactoring.getDeclaration();

	fReferences= new Expression[references.length];
	for (int i= 0; i < references.length; i++)
		fReferences[i]= getQualifiedReference(references[i]);

	fIs15= JavaModelUtil.is50OrHigher(cuRewrite.getCu().getJavaProject());
	fStaticImportsInInitializer= fIs15 ? staticImportsInInitializer : new HashSet<SimpleName>(0);
}
 

private TypeNameMatch[] findAllTypes(String simpleTypeName, IJavaSearchScope searchScope, SimpleName nameNode, IProgressMonitor monitor, ICompilationUnit cu) throws JavaModelException {
	boolean is50OrHigher= JavaModelUtil.is50OrHigher(cu.getJavaProject());

	int typeKinds= SimilarElementsRequestor.ALL_TYPES;
	if (nameNode != null) {
		typeKinds= ASTResolving.getPossibleTypeKinds(nameNode, is50OrHigher);
	}

	ArrayList<TypeNameMatch> typeInfos= new ArrayList<TypeNameMatch>();
	TypeNameMatchCollector requestor= new TypeNameMatchCollector(typeInfos);
	new SearchEngine().searchAllTypeNames(null, 0, simpleTypeName.toCharArray(), SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE, getSearchForConstant(typeKinds), searchScope, requestor, IJavaSearchConstants.FORCE_IMMEDIATE_SEARCH, monitor);

	ArrayList<TypeNameMatch> typeRefsFound= new ArrayList<TypeNameMatch>(typeInfos.size());
	for (int i= 0, len= typeInfos.size(); i < len; i++) {
		TypeNameMatch curr= typeInfos.get(i);
		if (curr.getPackageName().length() > 0) { // do not suggest imports from the default package
			if (isOfKind(curr, typeKinds, is50OrHigher) && isVisible(curr, cu)) {
				typeRefsFound.add(curr);
			}
		}
	}
	return typeRefsFound.toArray(new TypeNameMatch[typeRefsFound.size()]);
}
 

private ImportReferencesCollector(IJavaProject project, CompilationUnit astRoot, Region rangeLimit, boolean skipMethodBodies, Collection<SimpleName> resultingTypeImports, Collection<SimpleName> resultingStaticImports) {
	super(processJavadocComments(astRoot));
	fTypeImports= resultingTypeImports;
	fStaticImports= resultingStaticImports;
	fSubRange= rangeLimit;
	if (project == null || !JavaModelUtil.is50OrHigher(project)) {
		fStaticImports= null; // do not collect
	}
	fASTRoot= astRoot; // can be null
	fSkipMethodBodies= skipMethodBodies;
}
 

/**
 * Hook method that gets called when the superclass name has changed. The method
 * validates the superclass name and returns the status of the validation.
 * <p>
 * Subclasses may extend this method to perform their own validation.
 * </p>
 *
 * @return the status of the validation
 */
protected IStatus superClassChanged() {
	StatusInfo status= new StatusInfo();
	IPackageFragmentRoot root= getPackageFragmentRoot();
	fSuperClassDialogField.enableButton(root != null);

	fSuperClassStubTypeContext= null;

	String sclassName= getSuperClass();
	if (sclassName.length() == 0) {
		// accept the empty field (stands for java.lang.Object)
		return status;
	}

	if (root != null) {
		Type type= TypeContextChecker.parseSuperClass(sclassName);
		if (type == null) {
			status.setError(NewWizardMessages.NewTypeWizardPage_error_InvalidSuperClassName);
			return status;
		}
		if (type instanceof ParameterizedType && ! JavaModelUtil.is50OrHigher(root.getJavaProject())) {
			status.setError(NewWizardMessages.NewTypeWizardPage_error_SuperClassNotParameterized);
			return status;
		}
	} else {
		status.setError(""); //$NON-NLS-1$
	}
	return status;
}
 

private void createMethodComment(MethodDeclaration newDeclaration, IMethodBinding copyFrom) throws CoreException {
	if (fSettings.createComments) {
		String string= CodeGeneration.getMethodComment(fRewrite.getCu(), fType.getQualifiedName(), newDeclaration, copyFrom, StubUtility.getLineDelimiterUsed(fRewrite.getCu()));
		if (string != null) {
			Javadoc javadoc= (Javadoc) fRewrite.getASTRewrite().createStringPlaceholder(string, ASTNode.JAVADOC);
			newDeclaration.setJavadoc(javadoc);
		}
	}
	IJavaProject project= fUnit.getJavaElement().getJavaProject();
	if (fSettings.overrideAnnotation && JavaModelUtil.is50OrHigher(project))
		StubUtility2.addOverrideAnnotation(project, fRewrite.getASTRewrite(), newDeclaration, copyFrom);
}
 

public static void addOverridingDeprecatedMethodProposal(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {

		ICompilationUnit cu= context.getCompilationUnit();

		ASTNode selectedNode= problem.getCoveringNode(context.getASTRoot());
		if (!(selectedNode instanceof MethodDeclaration)) {
			return;
		}
		boolean is50OrHigher= JavaModelUtil.is50OrHigher(cu.getJavaProject());
		MethodDeclaration methodDecl= (MethodDeclaration) selectedNode;
		AST ast= methodDecl.getAST();
		ASTRewrite rewrite= ASTRewrite.create(ast);
		if (is50OrHigher) {
			Annotation annot= ast.newMarkerAnnotation();
			annot.setTypeName(ast.newName("Deprecated")); //$NON-NLS-1$
			rewrite.getListRewrite(methodDecl, methodDecl.getModifiersProperty()).insertFirst(annot, null);
		}
		Javadoc javadoc= methodDecl.getJavadoc();
		if (javadoc != null || !is50OrHigher) {
			if (!is50OrHigher) {
				javadoc= ast.newJavadoc();
				rewrite.set(methodDecl, MethodDeclaration.JAVADOC_PROPERTY, javadoc, null);
			}
			TagElement newTag= ast.newTagElement();
			newTag.setTagName(TagElement.TAG_DEPRECATED);
			JavadocTagsSubProcessor.insertTag(rewrite.getListRewrite(javadoc, Javadoc.TAGS_PROPERTY), newTag, null);
		}

		String label= CorrectionMessages.ModifierCorrectionSubProcessor_overrides_deprecated_description;
		Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.OVERRIDES_DEPRECATED, image);
		proposals.add(proposal);
	}
 

public static void addIncompatibleReturnTypeProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) throws JavaModelException {
	CompilationUnit astRoot= context.getASTRoot();
	ASTNode selectedNode= problem.getCoveringNode(astRoot);
	if (selectedNode == null) {
		return;
	}
	MethodDeclaration decl= ASTResolving.findParentMethodDeclaration(selectedNode);
	if (decl == null) {
		return;
	}
	IMethodBinding methodDeclBinding= decl.resolveBinding();
	if (methodDeclBinding == null) {
		return;
	}

	ITypeBinding returnType= methodDeclBinding.getReturnType();
	IMethodBinding overridden= Bindings.findOverriddenMethod(methodDeclBinding, false);
	if (overridden == null || overridden.getReturnType() == returnType) {
		return;
	}


	ICompilationUnit cu= context.getCompilationUnit();
	IMethodBinding methodDecl= methodDeclBinding.getMethodDeclaration();
	ITypeBinding overriddenReturnType= overridden.getReturnType();
	if (! JavaModelUtil.is50OrHigher(context.getCompilationUnit().getJavaProject())) {
		overriddenReturnType= overriddenReturnType.getErasure();
	}
	proposals.add(new TypeChangeCorrectionProposal(cu, methodDecl, astRoot, overriddenReturnType, false, IProposalRelevance.CHANGE_RETURN_TYPE));

	ICompilationUnit targetCu= cu;

	IMethodBinding overriddenDecl= overridden.getMethodDeclaration();
	ITypeBinding overridenDeclType= overriddenDecl.getDeclaringClass();

	if (overridenDeclType.isFromSource()) {
		targetCu= ASTResolving.findCompilationUnitForBinding(cu, astRoot, overridenDeclType);
		if (targetCu != null && ASTResolving.isUseableTypeInContext(returnType, overriddenDecl, false)) {
			TypeChangeCorrectionProposal proposal= new TypeChangeCorrectionProposal(targetCu, overriddenDecl, astRoot, returnType, false, IProposalRelevance.CHANGE_RETURN_TYPE_OF_OVERRIDDEN);
			if (overridenDeclType.isInterface()) {
				proposal.setDisplayName(Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changereturnofimplemented_description, BasicElementLabels.getJavaElementName(overriddenDecl.getName())));
			} else {
				proposal.setDisplayName(Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changereturnofoverridden_description, BasicElementLabels.getJavaElementName(overriddenDecl.getName())));
			}
			proposals.add(proposal);
		}
	}
}
 

private static SignatureAnnotationRewriteOperation createAddAnnotationToOverriddenOperation(CompilationUnit compilationUnit, IProblemLocation problem, String annotationToAdd,
		String annotationToRemove, boolean allowRemove) {
	ICompilationUnit cu= (ICompilationUnit) compilationUnit.getJavaElement();
	if (!JavaModelUtil.is50OrHigher(cu.getJavaProject()))
		return null;

	ASTNode selectedNode= problem.getCoveringNode(compilationUnit);
	if (selectedNode == null)
		return null;

	ASTNode declaringNode= getDeclaringNode(selectedNode);
	switch (problem.getProblemId()) {
		case IProblem.IllegalDefinitionToNonNullParameter:
		case IProblem.IllegalRedefinitionToNonNullParameter:
			break;
		case IProblem.IllegalReturnNullityRedefinition:
			if (declaringNode == null)
				declaringNode= selectedNode;
			break;
		default:
			return null;
	}

	String annotationNameLabel= annotationToAdd;
	int lastDot= annotationToAdd.lastIndexOf('.');
	if (lastDot != -1)
		annotationNameLabel= annotationToAdd.substring(lastDot + 1);
	annotationNameLabel= BasicElementLabels.getJavaElementName(annotationNameLabel);

	if (declaringNode instanceof MethodDeclaration) {
		// complaint is in signature of this method
		MethodDeclaration declaration= (MethodDeclaration) declaringNode;
		switch (problem.getProblemId()) {
			case IProblem.IllegalDefinitionToNonNullParameter:
			case IProblem.IllegalRedefinitionToNonNullParameter:
				return createChangeOverriddenParameterOperation(compilationUnit, cu, declaration, selectedNode, allowRemove, annotationToAdd, annotationToRemove, annotationNameLabel);
			case IProblem.IllegalReturnNullityRedefinition:
				if (hasNullAnnotation(declaration)) { // don't adjust super if local has no explicit annotation (?)
					return createChangeOverriddenReturnOperation(compilationUnit, cu, declaration, allowRemove, annotationToAdd, annotationToRemove, annotationNameLabel);
				}
		}
	}
	return null;
}
 

public static TextEdit wrapStaticImports(TextEdit edit, CompilationUnit root, ICompilationUnit unit) throws MalformedTreeException, CoreException {
	String[] favourites = PreferenceManager.getPrefs(unit.getResource()).getJavaCompletionFavoriteMembers();
	if (favourites.length == 0) {
		return edit;
	}
	IJavaProject project = unit.getJavaProject();
	if (JavaModelUtil.is50OrHigher(project)) {
		List<SimpleName> typeReferences = new ArrayList<>();
		List<SimpleName> staticReferences = new ArrayList<>();
		ImportReferencesCollector.collect(root, project, null, typeReferences, staticReferences);
		if (staticReferences.isEmpty()) {
			return edit;
		}
		ImportRewrite importRewrite = CodeStyleConfiguration.createImportRewrite(root, true);
		AST ast = root.getAST();
		ASTRewrite astRewrite = ASTRewrite.create(ast);
		for (SimpleName node : staticReferences) {
			addImports(root, unit, favourites, importRewrite, ast, astRewrite, node, true);
			addImports(root, unit, favourites, importRewrite, ast, astRewrite, node, false);
		}
		TextEdit staticEdit = importRewrite.rewriteImports(null);
		if (staticEdit != null && staticEdit.getChildrenSize() > 0) {
			TextEdit lastStatic = staticEdit.getChildren()[staticEdit.getChildrenSize() - 1];
			if (lastStatic instanceof DeleteEdit) {
				if (edit.getChildrenSize() > 0) {
					TextEdit last = edit.getChildren()[edit.getChildrenSize() - 1];
					if (last instanceof DeleteEdit && lastStatic.getOffset() == last.getOffset() && lastStatic.getLength() == last.getLength()) {
						edit.removeChild(last);
					}
				}
			}
			TextEdit firstStatic = staticEdit.getChildren()[0];
			if (firstStatic instanceof InsertEdit) {
				if (edit.getChildrenSize() > 0) {
					TextEdit firstEdit = edit.getChildren()[0];
					if (firstEdit instanceof InsertEdit) {
						if (areEqual((InsertEdit) firstEdit, (InsertEdit) firstStatic)) {
							edit.removeChild(firstEdit);
						}
					}
				}
			}
			try {
				staticEdit.addChild(edit);
				return staticEdit;
			} catch (MalformedTreeException e) {
				JavaLanguageServerPlugin.logException("Failed to resolve static organize imports source action", e);
			}
		}
	}
	return edit;
}
 

public static ICleanUpFix createCleanUp(CompilationUnit compilationUnit,
		boolean addOverrideAnnotation,
		boolean addOverrideInterfaceAnnotation,
		boolean addDeprecatedAnnotation,
		boolean rawTypeReference) {

	ICompilationUnit cu= (ICompilationUnit)compilationUnit.getJavaElement();
	if (!JavaModelUtil.is50OrHigher(cu.getJavaProject()))
		return null;

	if (!addOverrideAnnotation && !addDeprecatedAnnotation && !rawTypeReference)
		return null;

	List<CompilationUnitRewriteOperation> operations= new ArrayList<CompilationUnitRewriteOperation>();

	IProblem[] problems= compilationUnit.getProblems();
	IProblemLocation[] locations= new IProblemLocation[problems.length];
	for (int i= 0; i < problems.length; i++) {
		locations[i]= new ProblemLocation(problems[i]);
	}

	if (addOverrideAnnotation)
		createAddOverrideAnnotationOperations(compilationUnit, addOverrideInterfaceAnnotation, locations, operations);

	if (addDeprecatedAnnotation)
		createAddDeprecatedAnnotationOperations(compilationUnit, locations, operations);

	if (rawTypeReference)
		createRawTypeReferenceOperations(compilationUnit, locations, operations);

	if (operations.size() == 0)
		return null;

	String fixName;
	if (rawTypeReference) {
		fixName= FixMessages.Java50Fix_add_type_parameters_change_name;
	} else {
		fixName= FixMessages.Java50Fix_add_annotations_change_name;
	}

	CompilationUnitRewriteOperation[] operationsArray= operations.toArray(new CompilationUnitRewriteOperation[operations.size()]);
	return new Java50Fix(fixName, compilationUnit, operationsArray);
}
 

public static void addIncompatibleReturnTypeProposals(IInvocationContext context, IProblemLocationCore problem,
		Collection<ChangeCorrectionProposal> proposals) throws JavaModelException {
	CompilationUnit astRoot= context.getASTRoot();
	ASTNode selectedNode= problem.getCoveringNode(astRoot);
	if (selectedNode == null) {
		return;
	}
	MethodDeclaration decl= ASTResolving.findParentMethodDeclaration(selectedNode);
	if (decl == null) {
		return;
	}
	IMethodBinding methodDeclBinding= decl.resolveBinding();
	if (methodDeclBinding == null) {
		return;
	}

	ITypeBinding returnType= methodDeclBinding.getReturnType();
	IMethodBinding overridden= Bindings.findOverriddenMethod(methodDeclBinding, false);
	if (overridden == null || overridden.getReturnType() == returnType) {
		return;
	}


	ICompilationUnit cu= context.getCompilationUnit();
	IMethodBinding methodDecl= methodDeclBinding.getMethodDeclaration();
	ITypeBinding overriddenReturnType= overridden.getReturnType();
	if (! JavaModelUtil.is50OrHigher(context.getCompilationUnit().getJavaProject())) {
		overriddenReturnType= overriddenReturnType.getErasure();
	}
	proposals.add(new TypeChangeCorrectionProposal(cu, methodDecl, astRoot, overriddenReturnType, false, IProposalRelevance.CHANGE_RETURN_TYPE));

	ICompilationUnit targetCu= cu;

	IMethodBinding overriddenDecl= overridden.getMethodDeclaration();
	ITypeBinding overridenDeclType= overriddenDecl.getDeclaringClass();

	if (overridenDeclType.isFromSource()) {
		targetCu= ASTResolving.findCompilationUnitForBinding(cu, astRoot, overridenDeclType);
		if (targetCu != null && ASTResolving.isUseableTypeInContext(returnType, overriddenDecl, false)) {
			TypeChangeCorrectionProposal proposal= new TypeChangeCorrectionProposal(targetCu, overriddenDecl, astRoot, returnType, false, IProposalRelevance.CHANGE_RETURN_TYPE_OF_OVERRIDDEN);
			if (overridenDeclType.isInterface()) {
				proposal.setDisplayName(Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changereturnofimplemented_description, BasicElementLabels.getJavaElementName(overriddenDecl.getName())));
			} else {
				proposal.setDisplayName(Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changereturnofoverridden_description, BasicElementLabels.getJavaElementName(overriddenDecl.getName())));
			}
			proposals.add(proposal);
		}
	}
}
 

/**
 * Returns <code>true</code> if generic proposals should be allowed,
 * <code>false</code> if not. Note that even though code (in a library)
 * may be referenced that uses generics, it is still possible that the
 * current source does not allow generics.
 *
 * @param project the Java project
 * @return <code>true</code> if the generic proposals should be allowed,
 *         <code>false</code> if not
 */
private final boolean shouldProposeGenerics(IJavaProject project) {
	String sourceVersion;
	if (project != null)
		sourceVersion= project.getOption(JavaCore.COMPILER_SOURCE, true);
	else
		sourceVersion= JavaCore.getOption(JavaCore.COMPILER_SOURCE);

	return JavaModelUtil.is50OrHigher(sourceVersion);
}