public void documentChanged(final DocumentEvent documentEvent) {
            final Project project = JiraConfigurationComponent.this.project;

            FileDocumentManager fileDocumentManager = FileDocumentManager.getInstance();
            FileEditorManager fileEditorManager = FileEditorManager.getInstance(project);
            PsiManager psiManager = PsiManager.getInstance(project);

            Document selectedDocument = documentEvent.getDocument();
            VirtualFile selectedFile = fileDocumentManager.getFile(selectedDocument);

            PsiFile psiFile = psiManager.findFile(selectedFile);

            // We only annotate java code
            if (psiFile.canContainJavaCode()) {
                final PsiJavaFile javaFile = (PsiJavaFile) psiFile;
                int offset = documentEvent.getOffset();
                PsiElement context = javaFile.findElementAt(offset);

                if (context == null) {
                    return;
                }

                while (!(context instanceof PsiMethod)) {
                    context = context.getParent();
                }

                final PsiElement method = context;

                final PsiElement comment = method.getFirstChild();
                final PsiComment[] element = new PsiComment[] { null };

                if (!(comment instanceof PsiComment)) {
                    final PsiElementFactory elementFactory = psiManager.getElementFactory();

                    CommandProcessor.getInstance().executeCommand(project, new Runnable() {
                        public void run() {
                            ApplicationManager.getApplication().runWriteAction(new Runnable() {
                                public void run() {
                                    String commentString;
                                    PsiDocumentManager pdm = PsiDocumentManager.getInstance(project);


                                    try {
                                        int textOffset = method.getTextOffset();

                                        String issueKey = "FOO-777";
                                        String issueDescription = "This text comes from the issue description";
                                        //commentString = "/**\n * " + issueDescription + "\n *\n * @jira " + issueKey + "\n */";

                                        StringBuffer comment = new StringBuffer();
                                        comment.append("/**\n");
                                        comment.append(" * ");
                                        comment.append(issueDescription);
                                        comment.append("\n");
                                        comment.append(" * @jira ");
                                        comment.append(issueKey);
                                        comment.append("\n");
                                        comment.append(" */");

                                        commentString = comment.toString();

                                        element[0] = elementFactory.createCommentFromText(commentString, null);

                                    } catch (IncorrectOperationException e) {

                                        LOGGER.error("Unable to create comment element.", e);
                                    }

                                    try {
                                        pdm.commitDocument(documentEvent.getDocument());
                                        method.addBefore(element[0], comment);

                                    } catch (IncorrectOperationException e) {
                                        LOGGER.error("Unable to add the javadoc comment.", e);
                                    } finally {
                                        // make sure PSI is in sync with a certain document
                                        pdm.commitDocument(documentEvent.getDocument());
                                    }
                                }
                            });
                        }

                    }, "Comment", null);

                    fileEditorManager.getSelectedTextEditor().getCaretModel().moveToOffset(offset + element[0].getLength());


                }
            }

        }