diff --git a/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/projectRoot/BaseLibrariesConfigurable.java b/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/projectRoot/BaseLibrariesConfigurable.java
index ee183fb8372c..45a518e17f23 100644
--- a/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/projectRoot/BaseLibrariesConfigurable.java
+++ b/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/projectRoot/BaseLibrariesConfigurable.java
@@ -158,8 +158,10 @@ public abstract class BaseLibrariesConfigurable extends BaseStructureConfigurabl
   }
 
   public void dispose() {
-    for (final LibrariesModifiableModel provider : myContext.myLevel2Providers.values()) {
-      provider.disposeUncommittedLibraries();
+    if (myContext != null) {
+      for (final LibrariesModifiableModel provider : myContext.myLevel2Providers.values()) {
+        provider.disposeUncommittedLibraries();
+      }
     }
   }