diff --git a/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/junit/stubs/protobuf/PackageStub.java b/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/junit/stubs/protobuf/PackageStub.java
index 12895f5..87be946 100644
--- a/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/junit/stubs/protobuf/PackageStub.java
+++ b/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/junit/stubs/protobuf/PackageStub.java
@@ -8,8 +8,6 @@
  */
 package com.google.eclipse.protobuf.junit.stubs.protobuf;
 
-import java.lang.reflect.InvocationTargetException;
-
 import org.eclipse.emf.common.notify.*;
 import org.eclipse.emf.common.util.*;
 import org.eclipse.emf.ecore.*;
@@ -101,7 +99,7 @@
   }
 
   /** {@inheritDoc} */
-  public Object eInvoke(EOperation operation, EList<?> arguments) throws InvocationTargetException {
+  public Object eInvoke(EOperation operation, EList<?> arguments) {
     throw new UnsupportedOperationException();
   }
 
diff --git a/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/validation/ProtobufJavaValidator.java b/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/validation/ProtobufJavaValidator.java
index 2d3cc3f..9de1574 100644
--- a/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/validation/ProtobufJavaValidator.java
+++ b/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/validation/ProtobufJavaValidator.java
@@ -34,10 +34,6 @@
   @Inject private ImportUriResolver uriResolver;
   @Inject private IQualifiedNameProvider qualifiedNameProvider;
   @Inject private Properties properties;
-  @Inject private ModelNodes nodes;
-
-  @Check public void checkComment(EObject o) {
-  }
   
   @Check public void checkDefaultValueType(FieldOption option) {
     if (!fieldOptions.isDefaultValueOption(option)) return;