Examples with CatchClause org.eclipse.jdt.core.dom.CatchClause used on opensource projects

Example 11 with CatchClause

use of org.eclipse.jdt.core.dom.CatchClause in project AutoRefactor by JnRouvignac.

the class ASTNodes method isExceptionExpected.

/**
 * Returns whether a checked exception is supposed to be caught.
 *
 * @param node the node
 * @return true if a checked exception is supposed to be caught.
 */
public static boolean isExceptionExpected(final ASTNode node) {
    ASTNode parentNode = getFirstAncestorOrNull(node, TryStatement.class, BodyDeclaration.class);
    while (parentNode instanceof TryStatement) {
        TryStatement tryStatement = (TryStatement) parentNode;
        for (Object object : tryStatement.catchClauses()) {
            CatchClause catchClause = (CatchClause) object;
            if (catchClause.getException().getType() != null && !instanceOf(catchClause.getException().getType().resolveBinding(), RuntimeException.class.getCanonicalName())) {
                return true;
            }
        }
        parentNode = getFirstAncestorOrNull(parentNode, TryStatement.class, BodyDeclaration.class);
    }
    return false;
}

Example 12 with CatchClause

use of org.eclipse.jdt.core.dom.CatchClause in project AutoRefactor by JnRouvignac.

the class ObsoleteUseMultiCatchCleanUp method refactorCatches.

private void refactorCatches(final List<CatchClause> mergeableCatchClauses, final MergeDirection direction) {
    ASTRewrite rewrite = cuRewrite.getASTRewrite();
    AST ast = cuRewrite.getAST();
    TextEditGroup group = new TextEditGroup(MultiFixMessages.ObsoleteUseMultiCatchCleanUp_description);
    List<Type> typesByClause = new ArrayList<>();
    for (CatchClause mergeableCatchClause : mergeableCatchClauses) {
        typesByClause.add(mergeableCatchClause.getException().getType());
    }
    List<Type> allTypes = new ArrayList<>();
    collectAllUnionedTypes(typesByClause, allTypes);
    removeSupersededAlternatives(allTypes);
    UnionType unionType = ast.newUnionType();
    List<Type> unionedTypes = unionType.types();
    unionedTypes.addAll(ASTNodes.createMoveTarget(rewrite, allTypes));
    List<CatchClause> removedClauses = new ArrayList<>(mergeableCatchClauses);
    CatchClause mergedClause;
    if (MergeDirection.UP.equals(direction)) {
        mergedClause = removedClauses.remove(0);
    } else {
        mergedClause = removedClauses.remove(removedClauses.size() - 1);
    }
    rewrite.set(mergedClause.getException(), SingleVariableDeclaration.TYPE_PROPERTY, unionType, group);
    for (CatchClause mergeableCatchClause : removedClauses) {
        rewrite.remove(mergeableCatchClause, group);
    }
}

Example 13 with CatchClause

use of org.eclipse.jdt.core.dom.CatchClause in project bayou by capergroup.

the class DOMTryStatement method handle.

@Override
public DSubTree handle() {
    DSubTree tree = new DSubTree();
    // restriction: considering only the first catch clause
    DSubTree Ttry = new DOMBlock(statement.getBody(), visitor).handle();
    DSubTree Tcatch;
    if (!statement.catchClauses().isEmpty())
        Tcatch = new DOMCatchClause((CatchClause) statement.catchClauses().get(0), visitor).handle();
    else
        Tcatch = new DSubTree();
    DSubTree Tfinally = new DOMBlock(statement.getFinally(), visitor).handle();
    boolean except = Ttry.isValid() && Tcatch.isValid();
    if (except)
        tree.addNode(new DExcept(Ttry.getNodes(), Tcatch.getNodes()));
    else {
        // only one of these will add nodes
        tree.addNodes(Ttry.getNodes());
        tree.addNodes(Tcatch.getNodes());
    }
    tree.addNodes(Tfinally.getNodes());
    return tree;
}

Example 14 with CatchClause

use of org.eclipse.jdt.core.dom.CatchClause in project eclipse.jdt.ls by eclipse.

the class LocalCorrectionsSubProcessor method addUncaughtExceptionProposals.

public static void addUncaughtExceptionProposals(IInvocationContext context, IProblemLocationCore problem, Collection<ChangeCorrectionProposal> proposals) throws CoreException {
    ICompilationUnit cu = context.getCompilationUnit();
    CompilationUnit astRoot = context.getASTRoot();
    ASTNode selectedNode = context.getSelectionLength() > 0 ? context.getCoveredNode() : problem.getCoveringNode(astRoot);
    if (selectedNode == null) {
        return;
    }
    while (selectedNode != null && !(selectedNode instanceof Statement) && !(selectedNode instanceof VariableDeclarationExpression) && !(selectedNode.getLocationInParent() == LambdaExpression.BODY_PROPERTY) && !(selectedNode instanceof MethodReference)) {
        selectedNode = selectedNode.getParent();
    }
    if (selectedNode == null) {
        return;
    }
    int offset = selectedNode.getStartPosition();
    int length = selectedNode.getLength();
    int selectionEnd = context.getSelectionOffset() + context.getSelectionLength();
    if (selectionEnd > offset + length) {
        // extend the selection if more than one statement is selected (bug 72149)
        length = selectionEnd - offset;
    }
    // Surround with proposals
    SurroundWithTryCatchRefactoring refactoring = SurroundWithTryCatchRefactoring.create(cu, offset, length);
    if (refactoring == null) {
        return;
    }
    refactoring.setLeaveDirty(true);
    if (refactoring.checkActivationBasics(astRoot).isOK()) {
        String label = CorrectionMessages.LocalCorrectionsSubProcessor_surroundwith_trycatch_description;
        RefactoringCorrectionProposal proposal = new RefactoringCorrectionProposal(label, CodeActionKind.QuickFix, cu, refactoring, IProposalRelevance.SURROUND_WITH_TRY_CATCH);
        proposal.setLinkedProposalModel(refactoring.getLinkedProposalModel());
        proposals.add(proposal);
    }
    if (JavaModelUtil.is1d7OrHigher(cu.getJavaProject())) {
        refactoring = SurroundWithTryCatchRefactoring.create(cu, offset, length, true);
        if (refactoring == null) {
            return;
        }
        refactoring.setLeaveDirty(true);
        if (refactoring.checkActivationBasics(astRoot).isOK()) {
            String label = CorrectionMessages.LocalCorrectionsSubProcessor_surroundwith_trymulticatch_description;
            RefactoringCorrectionProposal proposal = new RefactoringCorrectionProposal(label, CodeActionKind.QuickFix, cu, refactoring, IProposalRelevance.SURROUND_WITH_TRY_MULTICATCH);
            proposal.setLinkedProposalModel(refactoring.getLinkedProposalModel());
            proposals.add(proposal);
        }
    }
    // Surround with try-with
    getTryWithResourceProposals(context, problem, proposals);
    // Catch exception
    BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
    if (decl == null) {
        return;
    }
    ASTNode enclosingNode = SurroundWithAnalyzer.getEnclosingNode(selectedNode);
    if (enclosingNode == null) {
        return;
    }
    ITypeBinding[] uncaughtExceptions = ExceptionAnalyzer.perform(enclosingNode, Selection.createFromStartLength(offset, length));
    if (uncaughtExceptions.length == 0) {
        return;
    }
    TryStatement surroundingTry = ASTResolving.findParentTryStatement(selectedNode);
    AST ast = astRoot.getAST();
    if (surroundingTry != null && (ASTNodes.isParent(selectedNode, surroundingTry.getBody()) || selectedNode.getLocationInParent() == TryStatement.RESOURCES_PROPERTY)) {
        {
            ASTRewrite rewrite = ASTRewrite.create(surroundingTry.getAST());
            String label = CorrectionMessages.LocalCorrectionsSubProcessor_addadditionalcatch_description;
            LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, CodeActionKind.QuickFix, cu, rewrite, IProposalRelevance.ADD_ADDITIONAL_CATCH);
            ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
            ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
            CodeScopeBuilder.Scope scope = CodeScopeBuilder.perform(decl, Selection.createFromStartLength(offset, length)).findScope(offset, length);
            scope.setCursor(offset);
            ListRewrite clausesRewrite = rewrite.getListRewrite(surroundingTry, TryStatement.CATCH_CLAUSES_PROPERTY);
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                ITypeBinding excBinding = uncaughtExceptions[i];
                String varName = StubUtility.getExceptionVariableName(cu.getJavaProject());
                String name = scope.createName(varName, false);
                SingleVariableDeclaration var = ast.newSingleVariableDeclaration();
                var.setName(ast.newSimpleName(name));
                var.setType(imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION));
                CatchClause newClause = ast.newCatchClause();
                newClause.setException(var);
                String catchBody = StubUtility.getCatchBodyContent(cu, excBinding.getName(), name, selectedNode, String.valueOf('\n'));
                if (catchBody != null) {
                    ASTNode node = rewrite.createStringPlaceholder(catchBody, ASTNode.RETURN_STATEMENT);
                    newClause.getBody().statements().add(node);
                }
                clausesRewrite.insertLast(newClause, null);
                // $NON-NLS-1$
                String typeKey = "type" + i;
                // $NON-NLS-1$
                String nameKey = "name" + i;
                proposal.addLinkedPosition(rewrite.track(var.getType()), false, typeKey);
                proposal.addLinkedPosition(rewrite.track(var.getName()), false, nameKey);
                addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
            }
            proposals.add(proposal);
        }
        if (JavaModelUtil.is1d7OrHigher(cu.getJavaProject())) {
            List<CatchClause> catchClauses = surroundingTry.catchClauses();
            if (catchClauses != null && catchClauses.size() == 1) {
                List<ITypeBinding> filteredExceptions = SurroundWithTryCatchRefactoring.filterSubtypeExceptions(uncaughtExceptions);
                String label = filteredExceptions.size() > 1 ? CorrectionMessages.LocalCorrectionsSubProcessor_addexceptionstoexistingcatch_description : CorrectionMessages.LocalCorrectionsSubProcessor_addexceptiontoexistingcatch_description;
                ASTRewrite rewrite = ASTRewrite.create(ast);
                LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, CodeActionKind.QuickFix, cu, rewrite, IProposalRelevance.ADD_EXCEPTIONS_TO_EXISTING_CATCH);
                ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
                ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
                CatchClause catchClause = catchClauses.get(0);
                Type type = catchClause.getException().getType();
                if (type instanceof UnionType) {
                    UnionType unionType = (UnionType) type;
                    ListRewrite listRewrite = rewrite.getListRewrite(unionType, UnionType.TYPES_PROPERTY);
                    for (int i = 0; i < filteredExceptions.size(); i++) {
                        ITypeBinding excBinding = filteredExceptions.get(i);
                        Type type2 = imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION);
                        listRewrite.insertLast(type2, null);
                        // $NON-NLS-1$
                        String typeKey = "type" + i;
                        proposal.addLinkedPosition(rewrite.track(type2), false, typeKey);
                        addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
                    }
                } else {
                    UnionType newUnionType = ast.newUnionType();
                    List<Type> types = newUnionType.types();
                    types.add((Type) rewrite.createCopyTarget(type));
                    for (int i = 0; i < filteredExceptions.size(); i++) {
                        ITypeBinding excBinding = filteredExceptions.get(i);
                        Type type2 = imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION);
                        types.add(type2);
                        // $NON-NLS-1$
                        String typeKey = "type" + i;
                        proposal.addLinkedPosition(rewrite.track(type2), false, typeKey);
                        addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
                    }
                    rewrite.replace(type, newUnionType, null);
                }
                proposals.add(proposal);
            } else if (catchClauses != null && catchClauses.size() == 0) {
                List<ITypeBinding> filteredExceptions = SurroundWithTryCatchRefactoring.filterSubtypeExceptions(uncaughtExceptions);
                if (filteredExceptions.size() > 1) {
                    String label = CorrectionMessages.LocalCorrectionsSubProcessor_addadditionalmulticatch_description;
                    ASTRewrite rewrite = ASTRewrite.create(ast);
                    LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, CodeActionKind.QuickFix, cu, rewrite, IProposalRelevance.ADD_ADDITIONAL_MULTI_CATCH);
                    ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
                    ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
                    CodeScopeBuilder.Scope scope = CodeScopeBuilder.perform(decl, Selection.createFromStartLength(offset, length)).findScope(offset, length);
                    scope.setCursor(offset);
                    CatchClause newCatchClause = ast.newCatchClause();
                    String varName = StubUtility.getExceptionVariableName(cu.getJavaProject());
                    String name = scope.createName(varName, false);
                    SingleVariableDeclaration var = ast.newSingleVariableDeclaration();
                    var.setName(ast.newSimpleName(name));
                    UnionType newUnionType = ast.newUnionType();
                    List<Type> types = newUnionType.types();
                    for (int i = 0; i < filteredExceptions.size(); i++) {
                        ITypeBinding excBinding = filteredExceptions.get(i);
                        Type type2 = imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION);
                        types.add(type2);
                        // $NON-NLS-1$
                        String typeKey = "type" + i;
                        proposal.addLinkedPosition(rewrite.track(type2), false, typeKey);
                        addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
                    }
                    // $NON-NLS-1$
                    String nameKey = "name";
                    proposal.addLinkedPosition(rewrite.track(var.getName()), false, nameKey);
                    var.setType(newUnionType);
                    newCatchClause.setException(var);
                    // $NON-NLS-1$
                    String catchBody = StubUtility.getCatchBodyContent(cu, "Exception", name, selectedNode, String.valueOf('\n'));
                    if (catchBody != null) {
                        ASTNode node = rewrite.createStringPlaceholder(catchBody, ASTNode.RETURN_STATEMENT);
                        newCatchClause.getBody().statements().add(node);
                    }
                    ListRewrite listRewrite = rewrite.getListRewrite(surroundingTry, TryStatement.CATCH_CLAUSES_PROPERTY);
                    listRewrite.insertFirst(newCatchClause, null);
                    proposals.add(proposal);
                }
            }
        }
    }
    // Add throws declaration
    if (enclosingNode instanceof MethodDeclaration) {
        MethodDeclaration methodDecl = (MethodDeclaration) enclosingNode;
        IMethodBinding binding = methodDecl.resolveBinding();
        boolean isApplicable = (binding != null);
        if (isApplicable) {
            IMethodBinding overriddenMethod = Bindings.findOverriddenMethod(binding, true);
            if (overriddenMethod != null) {
                isApplicable = overriddenMethod.getDeclaringClass().isFromSource();
                if (!isApplicable) {
                    // bug 349051
                    ITypeBinding[] exceptionTypes = overriddenMethod.getExceptionTypes();
                    ArrayList<ITypeBinding> unhandledExceptions = new ArrayList<>(uncaughtExceptions.length);
                    for (int i = 0; i < uncaughtExceptions.length; i++) {
                        ITypeBinding curr = uncaughtExceptions[i];
                        if (isSubtype(curr, exceptionTypes)) {
                            unhandledExceptions.add(curr);
                        }
                    }
                    uncaughtExceptions = unhandledExceptions.toArray(new ITypeBinding[unhandledExceptions.size()]);
                    isApplicable |= uncaughtExceptions.length > 0;
                }
            }
        }
        if (isApplicable) {
            ITypeBinding[] methodExceptions = binding.getExceptionTypes();
            ArrayList<ITypeBinding> unhandledExceptions = new ArrayList<>(uncaughtExceptions.length);
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                ITypeBinding curr = uncaughtExceptions[i];
                if (!isSubtype(curr, methodExceptions)) {
                    unhandledExceptions.add(curr);
                }
            }
            uncaughtExceptions = unhandledExceptions.toArray(new ITypeBinding[unhandledExceptions.size()]);
            List<Type> exceptions = methodDecl.thrownExceptionTypes();
            int nExistingExceptions = exceptions.size();
            ChangeDescription[] desc = new ChangeDescription[nExistingExceptions + uncaughtExceptions.length];
            for (int i = 0; i < exceptions.size(); i++) {
                Type elem = exceptions.get(i);
                if (isSubtype(elem.resolveBinding(), uncaughtExceptions)) {
                    desc[i] = new RemoveDescription();
                }
            }
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                // $NON-NLS-1$
                desc[i + nExistingExceptions] = new InsertDescription(uncaughtExceptions[i], "");
            }
            String label = CorrectionMessages.LocalCorrectionsSubProcessor_addthrows_description;
            ChangeMethodSignatureProposal proposal = new ChangeMethodSignatureProposal(label, cu, astRoot, binding, null, desc, IProposalRelevance.ADD_THROWS_DECLARATION);
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                addExceptionTypeLinkProposals(proposal, uncaughtExceptions[i], proposal.getExceptionTypeGroupId(i + nExistingExceptions));
            }
            proposals.add(proposal);
        }
    }
}

Example 15 with CatchClause

use of org.eclipse.jdt.core.dom.CatchClause in project eclipse.jdt.ls by eclipse.

the class SurroundWithTryCatchRefactoring method createTryCatchStatement.

private void createTryCatchStatement(org.eclipse.jdt.core.IBuffer buffer, String lineDelimiter) throws CoreException {
    List<Statement> result = new ArrayList<>(1);
    TryStatement tryStatement = getAST().newTryStatement();
    ITypeBinding[] exceptions = fAnalyzer.getExceptions();
    ImportRewriteContext context = new ContextSensitiveImportRewriteContext(fAnalyzer.getEnclosingBodyDeclaration(), fImportRewrite);
    if (!fIsMultiCatch) {
        for (int i = 0; i < exceptions.length; i++) {
            ITypeBinding exception = exceptions[i];
            CatchClause catchClause = getAST().newCatchClause();
            tryStatement.catchClauses().add(catchClause);
            SingleVariableDeclaration decl = getAST().newSingleVariableDeclaration();
            String varName = StubUtility.getExceptionVariableName(fCUnit.getJavaProject());
            String name = fScope.createName(varName, false);
            decl.setName(getAST().newSimpleName(name));
            Type type = fImportRewrite.addImport(exception, getAST(), context, TypeLocation.EXCEPTION);
            decl.setType(type);
            catchClause.setException(decl);
            Statement st = getCatchBody(ASTNodes.getQualifiedTypeName(type), name, lineDelimiter);
            if (st != null) {
                catchClause.getBody().statements().add(st);
            }
            fLinkedProposalModel.getPositionGroup(GROUP_EXC_TYPE + i, true).addPosition(fRewriter.track(decl.getType()), i == 0);
            fLinkedProposalModel.getPositionGroup(GROUP_EXC_NAME + i, true).addPosition(fRewriter.track(decl.getName()), false);
        }
    } else {
        List<ITypeBinding> filteredExceptions = filterSubtypeExceptions(exceptions);
        CatchClause catchClause = getAST().newCatchClause();
        SingleVariableDeclaration decl = getAST().newSingleVariableDeclaration();
        String varName = StubUtility.getExceptionVariableName(fCUnit.getJavaProject());
        String name = fScope.createName(varName, false);
        decl.setName(getAST().newSimpleName(name));
        UnionType unionType = getAST().newUnionType();
        List<Type> types = unionType.types();
        int i = 0;
        for (ITypeBinding exception : filteredExceptions) {
            Type type = fImportRewrite.addImport(exception, getAST(), context, TypeLocation.EXCEPTION);
            types.add(type);
            fLinkedProposalModel.getPositionGroup(GROUP_EXC_TYPE + i, true).addPosition(fRewriter.track(type), i == 0);
            i++;
        }
        decl.setType(unionType);
        catchClause.setException(decl);
        fLinkedProposalModel.getPositionGroup(GROUP_EXC_NAME + 0, true).addPosition(fRewriter.track(decl.getName()), false);
        // $NON-NLS-1$
        Statement st = getCatchBody("Exception", name, lineDelimiter);
        if (st != null) {
            catchClause.getBody().statements().add(st);
        }
        tryStatement.catchClauses().add(catchClause);
    }
    List<ASTNode> variableDeclarations = getSpecialVariableDeclarationStatements();
    ListRewrite statements = fRewriter.getListRewrite(tryStatement.getBody(), Block.STATEMENTS_PROPERTY);
    boolean selectedNodeRemoved = false;
    ASTNode expressionStatement = null;
    for (int i = 0; i < fSelectedNodes.length; i++) {
        ASTNode node = fSelectedNodes[i];
        if (node instanceof VariableDeclarationStatement && variableDeclarations.contains(node)) {
            AST ast = getAST();
            VariableDeclarationStatement statement = (VariableDeclarationStatement) node;
            // Create a copy and remove the initializer
            VariableDeclarationStatement copy = (VariableDeclarationStatement) ASTNode.copySubtree(ast, statement);
            List<IExtendedModifier> modifiers = copy.modifiers();
            for (Iterator<IExtendedModifier> iter = modifiers.iterator(); iter.hasNext(); ) {
                IExtendedModifier modifier = iter.next();
                if (modifier.isModifier() && Modifier.isFinal(((Modifier) modifier).getKeyword().toFlagValue())) {
                    iter.remove();
                }
            }
            List<VariableDeclarationFragment> fragments = copy.fragments();
            for (Iterator<VariableDeclarationFragment> iter = fragments.iterator(); iter.hasNext(); ) {
                VariableDeclarationFragment fragment = iter.next();
                fragment.setInitializer(null);
            }
            CompilationUnit root = (CompilationUnit) statement.getRoot();
            int extendedStart = root.getExtendedStartPosition(statement);
            // we have a leading comment and the comment is covered by the selection
            if (extendedStart != statement.getStartPosition() && extendedStart >= fSelection.getOffset()) {
                String commentToken = buffer.getText(extendedStart, statement.getStartPosition() - extendedStart);
                commentToken = Strings.trimTrailingTabsAndSpaces(commentToken);
                Type type = statement.getType();
                String typeName = buffer.getText(type.getStartPosition(), type.getLength());
                copy.setType((Type) fRewriter.createStringPlaceholder(commentToken + typeName, type.getNodeType()));
            }
            result.add(copy);
            // convert the fragments into expression statements
            fragments = statement.fragments();
            if (!fragments.isEmpty()) {
                List<ExpressionStatement> newExpressionStatements = new ArrayList<>();
                for (Iterator<VariableDeclarationFragment> iter = fragments.iterator(); iter.hasNext(); ) {
                    VariableDeclarationFragment fragment = iter.next();
                    Expression initializer = fragment.getInitializer();
                    if (initializer != null) {
                        Assignment assignment = ast.newAssignment();
                        assignment.setLeftHandSide((Expression) fRewriter.createCopyTarget(fragment.getName()));
                        assignment.setRightHandSide((Expression) fRewriter.createCopyTarget(initializer));
                        newExpressionStatements.add(ast.newExpressionStatement(assignment));
                    }
                }
                if (!newExpressionStatements.isEmpty()) {
                    if (fSelectedNodes.length == 1) {
                        expressionStatement = fRewriter.createGroupNode(newExpressionStatements.toArray(new ASTNode[newExpressionStatements.size()]));
                    } else {
                        fRewriter.replace(statement, fRewriter.createGroupNode(newExpressionStatements.toArray(new ASTNode[newExpressionStatements.size()])), null);
                    }
                } else {
                    fRewriter.remove(statement, null);
                    selectedNodeRemoved = true;
                }
            } else {
                fRewriter.remove(statement, null);
                selectedNodeRemoved = true;
            }
        }
    }
    result.add(tryStatement);
    ASTNode replacementNode;
    if (result.size() == 1) {
        replacementNode = result.get(0);
    } else {
        replacementNode = fRewriter.createGroupNode(result.toArray(new ASTNode[result.size()]));
    }
    if (fSelectedNodes.length == 1) {
        ASTNode selectedNode = fSelectedNodes[0];
        if (selectedNode instanceof MethodReference) {
            MethodReference methodReference = (MethodReference) selectedNode;
            IMethodBinding functionalMethod = QuickAssistProcessor.getFunctionalMethodForMethodReference(methodReference);
            // functionalMethod is non-null and non-generic. See ExceptionAnalyzer.handleMethodReference(MethodReference node).
            Assert.isTrue(functionalMethod != null && !functionalMethod.isGenericMethod());
            LambdaExpression lambda = QuickAssistProcessor.convertMethodRefernceToLambda(methodReference, functionalMethod, fRootNode, fRewriter, null, true);
            ASTNode statementInBlock = (ASTNode) ((Block) lambda.getBody()).statements().get(0);
            fRewriter.replace(statementInBlock, replacementNode, null);
            statements.insertLast(statementInBlock, null);
            return;
        }
        LambdaExpression enclosingLambda = ASTResolving.findEnclosingLambdaExpression(selectedNode);
        if (enclosingLambda != null && selectedNode.getLocationInParent() == LambdaExpression.BODY_PROPERTY && enclosingLambda.resolveMethodBinding() != null) {
            QuickAssistProcessor.changeLambdaBodyToBlock(enclosingLambda, getAST(), fRewriter);
            Block blockBody = (Block) fRewriter.get(enclosingLambda, LambdaExpression.BODY_PROPERTY);
            ASTNode statementInBlock = (ASTNode) blockBody.statements().get(0);
            fRewriter.replace(statementInBlock, replacementNode, null);
            statements.insertLast(statementInBlock, null);
            return;
        }
        if (expressionStatement != null) {
            statements.insertLast(expressionStatement, null);
        } else {
            if (!selectedNodeRemoved) {
                statements.insertLast(fRewriter.createMoveTarget(selectedNode), null);
            }
        }
        fRewriter.replace(selectedNode, replacementNode, null);
    } else {
        ListRewrite source = fRewriter.getListRewrite(fSelectedNodes[0].getParent(), (ChildListPropertyDescriptor) fSelectedNodes[0].getLocationInParent());
        ASTNode toMove = source.createMoveTarget(fSelectedNodes[0], fSelectedNodes[fSelectedNodes.length - 1], replacementNode, null);
        statements.insertLast(toMove, null);
    }
}