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remove listener only if it was added previously

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Ekaterina Tuzova
2017-04-10 18:47:30 +03:00
parent 51ab86b096
commit d85f30a968
1 changed files with 3 additions and 1 deletions
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python/educational-core/src/com/jetbrains/edu/coursecreator/CCProjectComponent.java
+3 -1
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@@ -119,6 +119,8 @@ public class CCProjectComponent extends AbstractProjectComponent {
}
public void projectClosed() {
VirtualFileManager.getInstance().removeVirtualFileListener(myTaskFileLifeListener);
if (myTaskFileLifeListener != null) {
VirtualFileManager.getInstance().removeVirtualFileListener(myTaskFileLifeListener);
}
}
}