do not throw exceptions in CoreProgressManager.assertUnderProgress()

platform/core-impl/src/com/intellij/openapi/progress/impl/CoreProgressManager.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.openapi.progress.impl;
 
 import com.google.common.collect.ConcurrentHashMultiset;
@@ -745,7 +731,7 @@ public class CoreProgressManager extends ProgressManager implements Disposable {
     synchronized (threadsUnderIndicator) {
       Set<Thread> threads = threadsUnderIndicator.get(indicator);
       if (threads == null || !threads.contains(Thread.currentThread())) {
-        throw new IllegalStateException("Must be executed under progress indicator: "+indicator+". Please see e.g. ProgressManager.runProcess()");
+        LOG.error("Must be executed under progress indicator: "+indicator+". Please see e.g. ProgressManager.runProcess()");
       }
     }
   }