diff --git a/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java b/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java
index 819340dba5..7399bd01b8 100644
--- a/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java
+++ b/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java
@@ -18,11 +18,9 @@ package org.springframework.security.access.intercept.aopalliance;
 import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.Serializable;
-import java.lang.reflect.AccessibleObject;
 import java.lang.reflect.Method;
 
 import org.aopalliance.aop.Advice;
-import org.aopalliance.intercept.MethodInvocation;
 import org.springframework.aop.Pointcut;
 import org.springframework.aop.support.AbstractPointcutAdvisor;
 import org.springframework.aop.support.StaticMethodMatcherPointcut;
@@ -129,44 +127,4 @@ public class MethodSecurityMetadataSourceAdvisor extends AbstractPointcutAdvisor
             return attributeSource.getAttributes(m, targetClass) != null;
         }
     }
-
-    /**
-     * Represents a <code>MethodInvocation</code>.
-     * <p>
-     * Required as <code>MethodSecurityMetadataSource</code> only supports lookup of configuration attributes for
-     * <code>MethodInvocation</code>s.
-     */
-    class InternalMethodInvocation implements MethodInvocation {
-        private Method method;
-        private Class<?> targetClass;
-
-        public InternalMethodInvocation(Method method, Class<?> targetClass) {
-            this.method = method;
-            this.targetClass = targetClass;
-        }
-
-        protected InternalMethodInvocation() {
-            throw new UnsupportedOperationException();
-        }
-
-        public Object[] getArguments() {
-            throw new UnsupportedOperationException();
-        }
-
-        public Method getMethod() {
-            return this.method;
-        }
-
-        public AccessibleObject getStaticPart() {
-            throw new UnsupportedOperationException();
-        }
-
-        public Object getThis() {
-            return this.targetClass;
-        }
-
-        public Object proceed() throws Throwable {
-            throw new UnsupportedOperationException();
-        }
-    }
 }
diff --git a/core/src/test/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisorTests.java b/core/src/test/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisorTests.java
index 8d2d54f3d3..c7bd4cd35a 100644
--- a/core/src/test/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisorTests.java
+++ b/core/src/test/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisorTests.java
@@ -74,39 +74,4 @@ public class MethodSecurityMetadataSourceAdvisorTests extends TestCase {
             assertTrue(true);
         }
     }
-
-    public void testUnsupportedOperations() throws Throwable {
-        Class<TargetObject> clazz = TargetObject.class;
-        Method method = clazz.getMethod("countLength", new Class[] {String.class});
-
-        MethodSecurityMetadataSourceAdvisor.InternalMethodInvocation imi = new MethodSecurityMetadataSourceAdvisor(getInterceptor()).new InternalMethodInvocation(method, clazz);
-
-        try {
-            imi.getArguments();
-            fail("Should have thrown UnsupportedOperationException");
-        } catch (UnsupportedOperationException expected) {
-            assertTrue(true);
-        }
-
-        try {
-            imi.getStaticPart();
-            fail("Should have thrown UnsupportedOperationException");
-        } catch (UnsupportedOperationException expected) {
-            assertTrue(true);
-        }
-
-        try {
-            imi.proceed();
-            fail("Should have thrown UnsupportedOperationException");
-        } catch (UnsupportedOperationException expected) {
-            assertTrue(true);
-        }
-
-        try {
-            new MethodSecurityMetadataSourceAdvisor(getInterceptor()).new InternalMethodInvocation();
-            fail("Should have thrown UnsupportedOperationException");
-        } catch (UnsupportedOperationException expected) {
-            assertTrue(true);
-        }
-    }
 }