diff --git a/java/java-psi-impl/src/com/intellij/psi/impl/file/PsiPackageImpl.java b/java/java-psi-impl/src/com/intellij/psi/impl/file/PsiPackageImpl.java
index a01012e4e12b..1efa9a3acdd0 100644
--- a/java/java-psi-impl/src/com/intellij/psi/impl/file/PsiPackageImpl.java
+++ b/java/java-psi-impl/src/com/intellij/psi/impl/file/PsiPackageImpl.java
@@ -44,7 +44,7 @@ public class PsiPackageImpl extends PsiPackageBase implements PsiPackage, Querya
   private volatile CachedValue<PsiModifierList> myAnnotationList;
   private volatile CachedValue<Collection<PsiDirectory>> myDirectories;
   private volatile Set<String> myPublicClassNamesCache;
-  @NonNls private final Object myPublicClassNamesCacheLock = new String("package class names cache lock");
+  @NonNls private final Object myPublicClassNamesCacheLock = new Object();
 
   public PsiPackageImpl(PsiManager manager, String qualifiedName) {
     super(manager, qualifiedName);