Fix fastserde to support classes generated by our own avro-builder (#594)

Author: sashagavrilov

fastserde/avro-fastserde-tests-common/src/test/java/com/linkedin/avro/fastserde/FastSerdeCacheTest.java

@@ -2,6 +2,7 @@
 
 import com.linkedin.avro.fastserde.generated.avro.SimpleRecord;
 import com.linkedin.avro.fastserde.generated.avro.TestRecord;
+import com.linkedin.avro.fastserde.generated.ownavro.TestOwnCodegenRecord;
 import com.linkedin.avroutil1.compatibility.AvroCompatibilityHelper;
 
 import java.io.ByteArrayOutputStream;
@@ -81,6 +82,12 @@ public void testBuildFastSpecificDeserializerWithCorrectClasspath() {
     cache.buildFastSpecificDeserializer(TestRecord.SCHEMA$, TestRecord.SCHEMA$);
   }
 
+  @Test(groups = "deserializationTest")
+  public void testBuildFastSpecificDeserializerSupportsOurOwnGenerator() {
+    FastSerdeCache cache = FastSerdeCache.getDefaultInstance();
+    cache.buildFastSpecificDeserializer(TestOwnCodegenRecord.SCHEMA$, TestOwnCodegenRecord.SCHEMA$);
+  }
+
   @Test(groups = "serializationTest", timeOut = 5_000L,
           expectedExceptions = UnsupportedOperationException.class,
           expectedExceptionsMessageRegExp = "Fast specific serializer could not be generated.")