From 7b9d3ea9365d02a28986f3a38cbce062f7e252a2 Mon Sep 17 00:00:00 2001
From: "Vladislav.Soroka" <Vladislav.Soroka@jetbrains.com>
Date: Tue, 26 Sep 2017 20:23:08 +0300
Subject: [PATCH] Build tool window: handle invalid content

---
 .../impl/src/com/intellij/build/AbstractViewManager.java      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/java/compiler/impl/src/com/intellij/build/AbstractViewManager.java b/java/compiler/impl/src/com/intellij/build/AbstractViewManager.java
index fd514c47c343..cc29b806c060 100644
--- a/java/compiler/impl/src/com/intellij/build/AbstractViewManager.java
+++ b/java/compiler/impl/src/com/intellij/build/AbstractViewManager.java
@@ -221,6 +221,7 @@ public abstract class AbstractViewManager implements BuildProgressListener, Disp
 
     @Override
     public void update(@NotNull AnActionEvent e) {
+      if(!myContent.isValid()) return;
       Boolean isPinnedAndExtracted = myContent.getUserData(PINNED_EXTRACTED_CONTENT);
       if (isPinnedAndExtracted == Boolean.TRUE) {
         e.getPresentation().setEnabledAndVisible(false);
@@ -264,6 +265,7 @@ public abstract class AbstractViewManager implements BuildProgressListener, Disp
     public void actionPerformed(AnActionEvent e) {
       if (myBuildsView == null) return;
       Content content = myBuildsView.getContent();
+      if(!content.isValid()) return;
       final boolean removedOk = content.getManager().removeContent(content, true);
       if (removedOk) {
         if (myBuildsViewValue.getValue() == myBuildsView) {
@@ -278,7 +280,7 @@ public abstract class AbstractViewManager implements BuildProgressListener, Disp
 
     @Override
     public void update(AnActionEvent e) {
-      if (myBuildsView.hasRunningBuilds()) {
+      if (myBuildsView != null && myBuildsView.hasRunningBuilds()) {
         e.getPresentation().setEnabled(false);
       }
       else {