diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
index 6c6b272a324..16b885252b8 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
@@ -22,6 +22,7 @@ package org.apache.hadoop.hbase.master;
 import java.io.IOException;
 import java.util.List;
 
+import org.apache.commons.lang.ClassUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
@@ -91,7 +92,8 @@ public class MasterCoprocessorHost
   public MasterEnvironment createEnvironment(final Class<?> implClass,
       final Coprocessor instance, final int priority, final int seq,
       final Configuration conf) {
-    for (Class<?> c : implClass.getInterfaces()) {
+    for (Object itf : ClassUtils.getAllInterfaces(implClass)) {
+      Class<?> c = (Class<?>) itf;
       if (CoprocessorService.class.isAssignableFrom(c)) {
         masterServices.registerService(((CoprocessorService)instance).getService());
       }
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
index 13b83170a7b..a7d062715b2 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
@@ -38,6 +38,7 @@ import com.google.protobuf.Service;
 
 import org.apache.commons.collections.map.AbstractReferenceMap;
 import org.apache.commons.collections.map.ReferenceMap;
+import org.apache.commons.lang.ClassUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.commons.math.stat.descriptive.DescriptiveStatistics;
@@ -370,7 +371,8 @@ public class RegionCoprocessorHost
     // uses a different way to be registered and executed.
     // It uses a visitor pattern to invoke registered Endpoint
     // method.
-    for (Class<?> c : implClass.getInterfaces()) {
+    for (Object itf : ClassUtils.getAllInterfaces(implClass)) {
+      Class<?> c = (Class<?>) itf;
       if (CoprocessorService.class.isAssignableFrom(c)) {
         region.registerService( ((CoprocessorService)instance).getService() );
       }
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.java
index ab8e948b35d..d96b2abde26 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.java
@@ -22,6 +22,7 @@ import java.io.IOException;
 import java.util.Comparator;
 import java.util.List;
 
+import org.apache.commons.lang.ClassUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hbase.classification.InterfaceAudience;
@@ -281,9 +282,11 @@ public class RegionServerCoprocessorHost extends
         final Configuration conf, final RegionServerServices services) {
       super(impl, priority, seq, conf);
       this.regionServerServices = services;
-      for (Class c : implClass.getInterfaces()) {
+      for (Object itf : ClassUtils.getAllInterfaces(implClass)) {
+        Class<?> c = (Class<?>) itf;
         if (SingletonCoprocessorService.class.isAssignableFrom(c)) {
-          this.regionServerServices.registerService(((SingletonCoprocessorService) impl).getService());
+          this.regionServerServices.registerService(
+            ((SingletonCoprocessorService) impl).getService());
           break;
         }
       }
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController2.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController2.java
index a72cf1c3059..a9556acb2e4 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController2.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController2.java
@@ -29,6 +29,7 @@ import java.util.List;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.Coprocessor;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HTableDescriptor;
@@ -43,6 +44,10 @@ import org.apache.hadoop.hbase.client.Result;
 import org.apache.hadoop.hbase.client.ResultScanner;
 import org.apache.hadoop.hbase.client.Scan;
 import org.apache.hadoop.hbase.client.Table;
+import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;
+import org.apache.hadoop.hbase.coprocessor.RegionServerCoprocessorEnvironment;
+import org.apache.hadoop.hbase.master.MasterCoprocessorHost;
+import org.apache.hadoop.hbase.regionserver.RegionServerCoprocessorHost;
 import org.apache.hadoop.hbase.security.User;
 import org.apache.hadoop.hbase.security.access.Permission.Action;
 import org.apache.hadoop.hbase.testclassification.LargeTests;
@@ -466,6 +471,24 @@ public class TestAccessController2 extends SecureTestUtil {
     verifyDenied(TESTGROUP1_USER1, scanTableActionForGroupWithQualifierLevelAccess);
   }
 
+  public static class MyAccessController extends AccessController {
+  }
+
+  @Test
+  public void testCoprocessorLoading() throws Exception {
+    MasterCoprocessorHost cpHost =
+        TEST_UTIL.getMiniHBaseCluster().getMaster().getMasterCoprocessorHost();
+    cpHost.load(MyAccessController.class, Coprocessor.PRIORITY_HIGHEST, conf);
+    AccessController ACCESS_CONTROLLER = (AccessController) cpHost.findCoprocessor(
+      MyAccessController.class.getName());
+    MasterCoprocessorEnvironment CP_ENV = cpHost.createEnvironment(
+      MyAccessController.class, ACCESS_CONTROLLER, Coprocessor.PRIORITY_HIGHEST, 1, conf);
+    RegionServerCoprocessorHost rsHost = TEST_UTIL.getMiniHBaseCluster().getRegionServer(0)
+        .getRegionServerCoprocessorHost();
+    RegionServerCoprocessorEnvironment RSCP_ENV = rsHost.createEnvironment(
+      MyAccessController.class, ACCESS_CONTROLLER, Coprocessor.PRIORITY_HIGHEST, 1, conf);
+  }
+
   @Test
   public void testACLZNodeDeletion() throws Exception {
     String baseAclZNode = "/hbase/acl/";