diff --git a/java/java-impl/src/com/intellij/codeInspection/reference/RefMethodImpl.java b/java/java-impl/src/com/intellij/codeInspection/reference/RefMethodImpl.java
index 1ab4f888c691..f5aa2c90b0a7 100644
--- a/java/java-impl/src/com/intellij/codeInspection/reference/RefMethodImpl.java
+++ b/java/java-impl/src/com/intellij/codeInspection/reference/RefMethodImpl.java
@@ -179,6 +179,9 @@ public class RefMethodImpl extends RefJavaElementImpl implements RefMethod {
   @NotNull
   public Collection<RefMethod> getSuperMethods() {
     if (mySuperMethods == null) return EMPTY_METHOD_LIST;
+    if (mySuperMethods.size() > 10) {
+      LOG.info("method: " + getName() + " owner:" + getOwnerClass().getQualifiedName());
+    }
     return mySuperMethods;
   }
 
@@ -216,7 +219,7 @@ public class RefMethodImpl extends RefJavaElementImpl implements RefMethod {
   }
 
   public void addSuperMethod(RefMethodImpl refSuperMethod) {
-    if (!getSuperMethods().contains(refSuperMethod)) {
+    if (!getSuperMethods().contains(refSuperMethod) && !refSuperMethod.getSuperMethods().contains(this)) {
       if (mySuperMethods == null){
         mySuperMethods = new ArrayList<RefMethod>(1);
       }
@@ -225,7 +228,7 @@ public class RefMethodImpl extends RefJavaElementImpl implements RefMethod {
   }
 
   public void markExtended(RefMethodImpl method) {
-    if (!getDerivedMethods().contains(method)) {
+    if (!getDerivedMethods().contains(method) && !method.getDerivedMethods().contains(this)) {
       if (myDerivedMethods == null) {
         myDerivedMethods = new ArrayList<RefMethod>(1);
       }