Add a license header.

Signed-off-by: Tsuyoshi Ozawa <ozawa.tsuyoshi@gmail.com>

msgpack-core/src/main/java/org/msgpack/core/MessagePack.java

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.core;
 
 import org.msgpack.core.buffer.*;

msgpack-core/src/main/java/org/msgpack/core/example/MessagePackExample.java

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.core.example;
 
 import org.msgpack.core.*;

msgpack-core/src/test/scala/org/msgpack/core/MessagePackSpec.scala

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.core
 
 import org.scalatest._

msgpack-core/src/test/scala/org/msgpack/core/MessagePackTest.scala

@@ -1,9 +1,23 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.core
 
 import org.msgpack.value.Value
 import org.msgpack.value.holder.ValueHolder
 
-import scala.collection.mutable.ListBuffer
 import scala.util.Random
 import MessagePack.Code
 import java.io.ByteArrayOutputStream

msgpack-core/src/test/scala/org/msgpack/core/MessagePackerTest.scala

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.core
 
 import java.io.ByteArrayOutputStream

msgpack-core/src/test/scala/org/msgpack/value/CursorTest.scala

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.value
 
 import org.msgpack.core.{MessagePack, MessageUnpacker, MessagePackSpec}

msgpack-jackson/src/main/java/org/msgpack/jackson/dataformat/MessagePackFactory.java

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.jackson.dataformat;
 
 import com.fasterxml.jackson.core.*;

msgpack-jackson/src/test/java/org/msgpack/jackson/dataformat/MessagePackGeneratorTest.java

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.jackson.dataformat;
 
 import org.junit.Test;

msgpack-jackson/src/test/java/org/msgpack/jackson/dataformat/benchmark/MessagePackDataformatHugeDataBenchmarkTest.java

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.jackson.dataformat.benchmark;
 
 import com.fasterxml.jackson.core.JsonProcessingException;

msgpack-jackson/src/test/java/org/msgpack/jackson/dataformat/benchmark/MessagePackDataformatPojoBenchmarkTest.java

@@ -1,3 +1,18 @@
+//
+// MessagePack for Java
+//
+//    Licensed 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.msgpack.jackson.dataformat.benchmark;
 
 import com.fasterxml.jackson.core.JsonProcessingException;