From 6fc4bb4b333964ca205a545c7a1abdf1b19a16e0 Mon Sep 17 00:00:00 2001
From: Vladimir Krivosheev <vladimir.krivosheev@jetbrains.com>
Date: Tue, 25 Sep 2018 11:33:06 +0200
Subject: [PATCH] restore constructor for application level UndoManager

---
 .../openapi/command/impl/UndoManagerImpl.java |  4 +++
 .../impl/HeavyIdeaTestFixtureImpl.java        | 36 ++++++++++++-------
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/command/impl/UndoManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/command/impl/UndoManagerImpl.java
index 07b616c7ebb3..f4cd20890661 100644
--- a/platform/platform-impl/src/com/intellij/openapi/command/impl/UndoManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/command/impl/UndoManagerImpl.java
@@ -85,6 +85,10 @@ public class UndoManagerImpl extends UndoManager implements Disposable {
     return Registry.intValue("undo.documentUndoLimit");
   }
 
+  public UndoManagerImpl() {
+    this(null);
+  }
+
   public UndoManagerImpl(@Nullable ProjectEx project) {
     myProject = project;
 
diff --git a/platform/testFramework/src/com/intellij/testFramework/fixtures/impl/HeavyIdeaTestFixtureImpl.java b/platform/testFramework/src/com/intellij/testFramework/fixtures/impl/HeavyIdeaTestFixtureImpl.java
index 187eae274f20..b9d8f71685fc 100644
--- a/platform/testFramework/src/com/intellij/testFramework/fixtures/impl/HeavyIdeaTestFixtureImpl.java
+++ b/platform/testFramework/src/com/intellij/testFramework/fixtures/impl/HeavyIdeaTestFixtureImpl.java
@@ -93,16 +93,20 @@ class HeavyIdeaTestFixtureImpl extends BaseFixture implements HeavyIdeaTestFixtu
 
   @Override
   public void tearDown() throws Exception {
-    RunAll runAll = new RunAll()
-      .append(() -> LightPlatformTestCase.doTearDown(getProject(), myApplication))
-      .append(() -> {
-        for (ModuleFixtureBuilder moduleFixtureBuilder : myModuleFixtureBuilders) {
-          moduleFixtureBuilder.getFixture().tearDown();
-        }
-      })
-      .append(() -> EdtTestUtil.runInEdtAndWait(() -> PlatformTestCase.closeAndDisposeProjectAndCheckThatNoOpenProjects(getProject())))
-      .append(() -> InjectedLanguageManagerImpl.checkInjectorsAreDisposed(getProject()))
-      .append(() -> myProject = null);
+    RunAll runAll = new RunAll();
+
+    if (myProject != null) {
+      runAll = runAll
+        .append(() -> LightPlatformTestCase.doTearDown(getProject(), myApplication))
+        .append(() -> {
+          for (ModuleFixtureBuilder moduleFixtureBuilder : myModuleFixtureBuilders) {
+            moduleFixtureBuilder.getFixture().tearDown();
+          }
+        })
+        .append(() -> EdtTestUtil.runInEdtAndWait(() -> PlatformTestCase.closeAndDisposeProjectAndCheckThatNoOpenProjects(getProject())))
+        .append(() -> InjectedLanguageManagerImpl.checkInjectorsAreDisposed(getProject()))
+        .append(() -> myProject = null);
+    }
 
     JarFileSystemImpl.cleanupForNextTest();
 
@@ -128,8 +132,16 @@ class HeavyIdeaTestFixtureImpl extends BaseFixture implements HeavyIdeaTestFixtu
 
     runAll
       .append(super::tearDown)
-      .append(() -> myEditorListenerTracker.checkListenersLeak())
-      .append(() -> myThreadTracker.checkLeak())
+      .append(() -> {
+        if (myEditorListenerTracker != null) {
+          myEditorListenerTracker.checkListenersLeak();
+        }
+      })
+      .append(() -> {
+        if (myThreadTracker != null) {
+          myThreadTracker.checkLeak();
+        }
+      })
       .append(LightPlatformTestCase::checkEditorsReleased)
       .append(() -> {
         if (myOldSdks != null) {