Rename proto_java_library to java_proto_library.

RELNOTES[INC]: Renamed proto_java_library to java_proto_library.  The former
is now deprecated and will print out a warning when used.

--
MOS_MIGRATED_REVID=115012027

examples/proto/BUILD

diff --git a/examples/proto/BUILD b/examples/proto/BUILD
index def85a7..0d31081 100644
--- a/examples/proto/BUILD
+++ b/examples/proto/BUILD
@@ -1,14 +1,14 @@
 package(default_visibility = ["//visibility:public"])
 
-load("//tools/build_rules:genproto.bzl", "proto_java_library")
+load("//tools/build_rules:genproto.bzl", "java_proto_library")
 
 proto_library(
     name = "proto_smoke_test",
     srcs = ["test.proto"],
 )
 
-# proto_java_library is a quick and dirty rule to help Bazel compile itself.
-proto_java_library(
+# java_proto_library is a quick and dirty rule to help Bazel compile itself.
+java_proto_library(
     name = "test_proto",
     src = "test.proto",
 )

src/main/protobuf/BUILD

diff --git a/src/main/protobuf/BUILD b/src/main/protobuf/BUILD
index 49546fe..2255a27 100644
--- a/src/main/protobuf/BUILD
+++ b/src/main/protobuf/BUILD
@@ -1,6 +1,6 @@
 package(default_visibility = ["//visibility:public"])
 
-load("//tools/build_rules:genproto.bzl", "proto_java_library")
+load("//tools/build_rules:genproto.bzl", "java_proto_library")
 
 FILES = [
     "build",
@@ -20,12 +20,12 @@
     "remote_protocol",
 ]
 
-[proto_java_library(
+[java_proto_library(
     name = s + "_proto",
     src = s + ".proto",
 ) for s in FILES]
 
-proto_java_library(
+java_proto_library(
     name = "build_proto_v2",
     src = "build.proto",
 )

tools/build_rules/genproto.bzl

diff --git a/tools/build_rules/genproto.bzl b/tools/build_rules/genproto.bzl
index 47715df..2a59791 100644
--- a/tools/build_rules/genproto.bzl
+++ b/tools/build_rules/genproto.bzl
@@ -65,7 +65,7 @@
 )
 
 # TODO(bazel-team): support proto => proto dependencies too
-def proto_java_library(name, src):
+def java_proto_library(name, src):
   gensrcjar(name=name + "_srcjar", src=src)
   native.java_library(
     name=name,
@@ -74,3 +74,8 @@
     # The generated code has lots of 'rawtypes' warnings.
     javacopts=["-Xlint:-rawtypes"],
 )
+
+def proto_java_library(name, src):
+  print("Deprecated: use java_proto_library() instead, proto_java_library " +
+        "will be removed in version 0.2.1")
+  java_proto_library(name, src)