diff --git a/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/BrokerImpl.java b/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/BrokerImpl.java
index 265fbb2e0..7a9b3b8d1 100644
--- a/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/BrokerImpl.java
+++ b/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/BrokerImpl.java
@@ -4160,6 +4160,12 @@ public class BrokerImpl
             } catch (Throwable t) {
             }
         }
+
+        if (_conf.getMetaDataRepositoryInstance().getMetaData(cls,
+            getClassLoader(), false) == null)
+            throw new IllegalArgumentException(
+                _loc.get("no-interface-metadata", cls.getName()).getMessage());
+
         try {
             return PCRegistry.newInstance(cls, null, false);
         } catch (IllegalStateException ise) {
diff --git a/openjpa-kernel/src/main/java/org/apache/openjpa/meta/AbstractMetaDataDefaults.java b/openjpa-kernel/src/main/java/org/apache/openjpa/meta/AbstractMetaDataDefaults.java
index 5a7a5eba0..507431219 100644
--- a/openjpa-kernel/src/main/java/org/apache/openjpa/meta/AbstractMetaDataDefaults.java
+++ b/openjpa-kernel/src/main/java/org/apache/openjpa/meta/AbstractMetaDataDefaults.java
@@ -269,7 +269,7 @@ public abstract class AbstractMetaDataDefaults
      * Returns ACCESS_FIELD by default.
      */
     protected int getAccessType(ClassMetaData meta) {
-        return ClassMetaData.ACCESS_FIELD;
+            return ClassMetaData.ACCESS_FIELD;
     }
 
     /**
diff --git a/openjpa-kernel/src/main/java/org/apache/openjpa/meta/ClassMetaData.java b/openjpa-kernel/src/main/java/org/apache/openjpa/meta/ClassMetaData.java
index 43c097b8d..2753e7ce6 100644
--- a/openjpa-kernel/src/main/java/org/apache/openjpa/meta/ClassMetaData.java
+++ b/openjpa-kernel/src/main/java/org/apache/openjpa/meta/ClassMetaData.java
@@ -737,6 +737,9 @@ public class ClassMetaData
         // the implementations.
         if (isManagedInterface())
             setIntercepting(true);
+
+        // managed interfaces always use property access.
+        setAccessType(ACCESS_PROPERTY);
     }
 
     /**
diff --git a/openjpa-kernel/src/main/resources/org/apache/openjpa/kernel/localizer.properties b/openjpa-kernel/src/main/resources/org/apache/openjpa/kernel/localizer.properties
index 55970dfc0..cfeac3d4f 100644
--- a/openjpa-kernel/src/main/resources/org/apache/openjpa/kernel/localizer.properties
+++ b/openjpa-kernel/src/main/resources/org/apache/openjpa/kernel/localizer.properties
@@ -396,3 +396,4 @@ cant-serialize-pessimistic-broker: Serialization not allowed for brokers with \
     an active datastore (pessimistic) transaction.
 cant-serialize-connected-broker: Serialization not allowed for brokers with \
     an active connection to the database.
+no-interface-metadata: No metadata was found for managed interface {0}.
\ No newline at end of file