diff --git a/java/src/org/msgpack/MessageMergeable.java b/java/src/main/java/org/msgpack/MessageMergeable.java
similarity index 100%
rename from java/src/org/msgpack/MessageMergeable.java
rename to java/src/main/java/org/msgpack/MessageMergeable.java
diff --git a/java/src/org/msgpack/MessagePackable.java b/java/src/main/java/org/msgpack/MessagePackable.java
similarity index 100%
rename from java/src/org/msgpack/MessagePackable.java
rename to java/src/main/java/org/msgpack/MessagePackable.java
diff --git a/java/src/org/msgpack/MessageTypeException.java b/java/src/main/java/org/msgpack/MessageTypeException.java
similarity index 100%
rename from java/src/org/msgpack/MessageTypeException.java
rename to java/src/main/java/org/msgpack/MessageTypeException.java
diff --git a/java/src/org/msgpack/Packer.java b/java/src/main/java/org/msgpack/Packer.java
similarity index 100%
rename from java/src/org/msgpack/Packer.java
rename to java/src/main/java/org/msgpack/Packer.java
diff --git a/java/src/org/msgpack/Schema.java b/java/src/main/java/org/msgpack/Schema.java
similarity index 100%
rename from java/src/org/msgpack/Schema.java
rename to java/src/main/java/org/msgpack/Schema.java
diff --git a/java/src/org/msgpack/UnbufferedUnpacker.java b/java/src/main/java/org/msgpack/UnbufferedUnpacker.java
similarity index 100%
rename from java/src/org/msgpack/UnbufferedUnpacker.java
rename to java/src/main/java/org/msgpack/UnbufferedUnpacker.java
diff --git a/java/src/org/msgpack/UnpackException.java b/java/src/main/java/org/msgpack/UnpackException.java
similarity index 100%
rename from java/src/org/msgpack/UnpackException.java
rename to java/src/main/java/org/msgpack/UnpackException.java
diff --git a/java/src/org/msgpack/UnpackIterator.java b/java/src/main/java/org/msgpack/UnpackIterator.java
similarity index 100%
rename from java/src/org/msgpack/UnpackIterator.java
rename to java/src/main/java/org/msgpack/UnpackIterator.java
diff --git a/java/src/org/msgpack/Unpacker.java b/java/src/main/java/org/msgpack/Unpacker.java
similarity index 100%
rename from java/src/org/msgpack/Unpacker.java
rename to java/src/main/java/org/msgpack/Unpacker.java
diff --git a/java/src/org/msgpack/impl/UnpackerImpl.java b/java/src/main/java/org/msgpack/impl/UnpackerImpl.java
similarity index 100%
rename from java/src/org/msgpack/impl/UnpackerImpl.java
rename to java/src/main/java/org/msgpack/impl/UnpackerImpl.java
diff --git a/java/src/org/msgpack/schema/ArraySchema.java b/java/src/main/java/org/msgpack/schema/ArraySchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/ArraySchema.java
rename to java/src/main/java/org/msgpack/schema/ArraySchema.java
diff --git a/java/src/org/msgpack/schema/ByteSchema.java b/java/src/main/java/org/msgpack/schema/ByteSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/ByteSchema.java
rename to java/src/main/java/org/msgpack/schema/ByteSchema.java
diff --git a/java/src/org/msgpack/schema/ClassGenerator.java b/java/src/main/java/org/msgpack/schema/ClassGenerator.java
similarity index 100%
rename from java/src/org/msgpack/schema/ClassGenerator.java
rename to java/src/main/java/org/msgpack/schema/ClassGenerator.java
diff --git a/java/src/org/msgpack/schema/ClassSchema.java b/java/src/main/java/org/msgpack/schema/ClassSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/ClassSchema.java
rename to java/src/main/java/org/msgpack/schema/ClassSchema.java
diff --git a/java/src/org/msgpack/schema/DoubleSchema.java b/java/src/main/java/org/msgpack/schema/DoubleSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/DoubleSchema.java
rename to java/src/main/java/org/msgpack/schema/DoubleSchema.java
diff --git a/java/src/org/msgpack/schema/FieldSchema.java b/java/src/main/java/org/msgpack/schema/FieldSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/FieldSchema.java
rename to java/src/main/java/org/msgpack/schema/FieldSchema.java
diff --git a/java/src/org/msgpack/schema/FloatSchema.java b/java/src/main/java/org/msgpack/schema/FloatSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/FloatSchema.java
rename to java/src/main/java/org/msgpack/schema/FloatSchema.java
diff --git a/java/src/org/msgpack/schema/GenericClassSchema.java b/java/src/main/java/org/msgpack/schema/GenericClassSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/GenericClassSchema.java
rename to java/src/main/java/org/msgpack/schema/GenericClassSchema.java
diff --git a/java/src/org/msgpack/schema/GenericSchema.java b/java/src/main/java/org/msgpack/schema/GenericSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/GenericSchema.java
rename to java/src/main/java/org/msgpack/schema/GenericSchema.java
diff --git a/java/src/org/msgpack/schema/IArraySchema.java b/java/src/main/java/org/msgpack/schema/IArraySchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/IArraySchema.java
rename to java/src/main/java/org/msgpack/schema/IArraySchema.java
diff --git a/java/src/org/msgpack/schema/IMapSchema.java b/java/src/main/java/org/msgpack/schema/IMapSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/IMapSchema.java
rename to java/src/main/java/org/msgpack/schema/IMapSchema.java
diff --git a/java/src/org/msgpack/schema/IntSchema.java b/java/src/main/java/org/msgpack/schema/IntSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/IntSchema.java
rename to java/src/main/java/org/msgpack/schema/IntSchema.java
diff --git a/java/src/org/msgpack/schema/LongSchema.java b/java/src/main/java/org/msgpack/schema/LongSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/LongSchema.java
rename to java/src/main/java/org/msgpack/schema/LongSchema.java
diff --git a/java/src/org/msgpack/schema/MapSchema.java b/java/src/main/java/org/msgpack/schema/MapSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/MapSchema.java
rename to java/src/main/java/org/msgpack/schema/MapSchema.java
diff --git a/java/src/org/msgpack/schema/RawSchema.java b/java/src/main/java/org/msgpack/schema/RawSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/RawSchema.java
rename to java/src/main/java/org/msgpack/schema/RawSchema.java
diff --git a/java/src/org/msgpack/schema/ReflectionClassSchema.java b/java/src/main/java/org/msgpack/schema/ReflectionClassSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/ReflectionClassSchema.java
rename to java/src/main/java/org/msgpack/schema/ReflectionClassSchema.java
diff --git a/java/src/org/msgpack/schema/SSchemaParser.java b/java/src/main/java/org/msgpack/schema/SSchemaParser.java
similarity index 100%
rename from java/src/org/msgpack/schema/SSchemaParser.java
rename to java/src/main/java/org/msgpack/schema/SSchemaParser.java
diff --git a/java/src/org/msgpack/schema/ShortSchema.java b/java/src/main/java/org/msgpack/schema/ShortSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/ShortSchema.java
rename to java/src/main/java/org/msgpack/schema/ShortSchema.java
diff --git a/java/src/org/msgpack/schema/SpecificClassSchema.java b/java/src/main/java/org/msgpack/schema/SpecificClassSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/SpecificClassSchema.java
rename to java/src/main/java/org/msgpack/schema/SpecificClassSchema.java
diff --git a/java/src/org/msgpack/schema/StringSchema.java b/java/src/main/java/org/msgpack/schema/StringSchema.java
similarity index 100%
rename from java/src/org/msgpack/schema/StringSchema.java
rename to java/src/main/java/org/msgpack/schema/StringSchema.java
diff --git a/java/test/org/msgpack/TestPackUnpack.java b/java/src/test/java/org/msgpack/TestPackUnpack.java
similarity index 100%
rename from java/test/org/msgpack/TestPackUnpack.java
rename to java/src/test/java/org/msgpack/TestPackUnpack.java
diff --git a/java/test/org/msgpack/TestSample.java b/java/src/test/java/org/msgpack/TestSample.java
similarity index 100%
rename from java/test/org/msgpack/TestSample.java
rename to java/src/test/java/org/msgpack/TestSample.java