Complement Apache License Declaration for rel-0.5.0

rel-0.5.0 license-checking fails on those three files without license statement

Author: Eugene <liujin@apache.org>

Closes #496 from toyboxman/rel-0.5.
diff --git a/service/src/test/java/org/apache/griffin/core/job/JobServiceImplTest.java b/service/src/test/java/org/apache/griffin/core/job/JobServiceImplTest.java
index a335de2..f5bd9b3 100644
--- a/service/src/test/java/org/apache/griffin/core/job/JobServiceImplTest.java
+++ b/service/src/test/java/org/apache/griffin/core/job/JobServiceImplTest.java
@@ -1,3 +1,22 @@
+/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+*/
+
 package org.apache.griffin.core.job;
 
 import org.apache.griffin.core.exception.GriffinException;
diff --git a/service/src/test/java/org/apache/griffin/core/job/factory/PredicatorFactoryTest.java b/service/src/test/java/org/apache/griffin/core/job/factory/PredicatorFactoryTest.java
index 9cbab39..b289e24 100644
--- a/service/src/test/java/org/apache/griffin/core/job/factory/PredicatorFactoryTest.java
+++ b/service/src/test/java/org/apache/griffin/core/job/factory/PredicatorFactoryTest.java
@@ -1,3 +1,22 @@
+/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+*/
+
 package org.apache.griffin.core.job.factory;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
diff --git a/service/src/test/java/org/apache/griffin/core/util/PredicatorMock.java b/service/src/test/java/org/apache/griffin/core/util/PredicatorMock.java
index 950bb68..bc7a6e2 100644
--- a/service/src/test/java/org/apache/griffin/core/util/PredicatorMock.java
+++ b/service/src/test/java/org/apache/griffin/core/util/PredicatorMock.java
@@ -1,3 +1,22 @@
+/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+*/
+
 package org.apache.griffin.core.util;
 
 import org.apache.griffin.core.job.Predicator;