Fix the problem for the GitHubIssuePanel #27

- Hide the comments section in New Issue

Author: junichi11

src/main/java/com/junichi11/netbeans/modules/github/issues/issue/ui/GitHubIssuePanel.java

@@ -202,7 +202,8 @@ public void update() {
         }
 
         // existing issue
-        if (!gitHubIssue.isNew()) {
+        boolean isExistingIssue = !gitHubIssue.isNew();
+        if (isExistingIssue) {
             Issue issue = gitHubIssue.getIssue();
             if (issue != null) {
                 // set existing info
@@ -272,9 +273,10 @@ public void update() {
         }
 
         // visibility
-        setNewCommentVisible();
+        setCommentsSectionVisible(isExistingIssue);
+        setNewCommentVisible(isExistingIssue);
         setCollaboratorsComponentsVisible(isCollaborator);
-        attributesViewPanel.setVisible(!gitHubIssue.isNew());
+        attributesViewPanel.setVisible(isExistingIssue);
 
         fireChange();
     }
@@ -511,11 +513,7 @@ public void setErrorMessage(String errorMessage) {
         headerErrorLabel.setText(errorMessage);
     }
 
-    private void setNewCommentVisible() {
-        if (gitHubIssue == null) {
-            return;
-        }
-        boolean isVisible = !gitHubIssue.isNew(); // existing issue
+    private void setNewCommentVisible(boolean isVisible) {
         newCommentLabel.setVisible(isVisible);
         newCommentTabbedPanel.setVisible(isVisible);
         newCommentButton.setVisible(isVisible);
@@ -526,6 +524,10 @@ private void setNewCommentVisible() {
         }
     }
 
+    private void setCommentsSectionVisible(boolean isVisible) {
+        commentsCollapsibleSectionPanel.setVisible(isVisible);
+    }
+
     public void setNewCommentEnabled(boolean isEnabled) {
         newCommentTabbedPanel.setEnabled(isEnabled);
         newCommentButton.setEnabled(isEnabled);