diff --git a/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java b/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java
index 8396cbbca6..43897d9d84 100644
--- a/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java
+++ b/base/org.eclipse.jdt.groovy.core/src/org/codehaus/jdt/groovy/internal/compiler/ast/GroovyClassScope.java
@@ -92,14 +92,12 @@ protected MethodBinding[] augmentMethodBindings(MethodBinding[] methodBindings)
         }
         boolean implementsGroovyLangObject = false;
 
-        ReferenceBinding[] superInterfaces = binding.superInterfaces;
-        if (superInterfaces != null) {
-            for (int i = 0, max = superInterfaces.length; i < max; i++) {
-                char[][] interfaceName = superInterfaces[i].compoundName;
-                if (CharOperation.equals(interfaceName, GROOVY_LANG_GROOVYOBJECT)) {
-                    implementsGroovyLangObject = true;
-                    break;
-                }
+        ReferenceBinding[] superInterfaces = binding.superInterfaces != null ? binding.superInterfaces : new ReferenceBinding[0];
+        for (int i = 0, max = superInterfaces.length; i < max; i++) {
+            char[][] interfaceName = superInterfaces[i].compoundName;
+            if (CharOperation.equals(interfaceName, GROOVY_LANG_GROOVYOBJECT)) {
+                implementsGroovyLangObject = true;
+                break;
             }
         }