diff --git a/java/java-psi-impl/src/com/intellij/psi/impl/source/PsiImmediateClassType.java b/java/java-psi-impl/src/com/intellij/psi/impl/source/PsiImmediateClassType.java
index 5cbd31ed1f1e..0b6aeeadcd59 100644
--- a/java/java-psi-impl/src/com/intellij/psi/impl/source/PsiImmediateClassType.java
+++ b/java/java-psi-impl/src/com/intellij/psi/impl/source/PsiImmediateClassType.java
@@ -118,6 +118,13 @@ public class PsiImmediateClassType extends PsiClassType.Stub {
     return myClass.getName();
   }
 
+  @Override
+  public int getParameterCount() {
+    PsiTypeParameterList list = myClass.getTypeParameterList();
+    if (list == null) return 0;
+    return list.getTypeParameters().length;
+  }
+
   @Override
   @NotNull
   public PsiType[] getParameters() {