create groovy method from usage in java file

java/java-psi-api/src/com/intellij/psi/JVMElementFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2011 JetBrains s.r.o.
+ * Copyright 2000-2012 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -128,5 +128,12 @@ public interface JVMElementFactory {
   @NotNull
   PsiElement createExpressionFromText(@NotNull @NonNls String text, @Nullable PsiElement context) throws IncorrectOperationException;
 
+  @NotNull
   PsiElement createReferenceElementByType(PsiClassType type);
+
+  @NotNull
+  PsiTypeParameterList createTypeParameterList();
+
+  @NotNull
+  PsiTypeParameter createTypeParameter(String name, PsiClassType[] superTypes);
 }