Document RELEASE.mdgit status

java/RELEASE.md

@@ -0,0 +1,29 @@
+## Cross-building
+
+To build RocksDB as a single self contained cross-platform JAR. The cross-platform jar can be usd on any 64-bit OSX system, 32-bit Linux system, or 64-bit Linux system.
+
+Building a cross-platform JAR requires:
+
+ * [Vagrant](https://www.vagrantup.com/)
+ * [Virtualbox](https://www.virtualbox.org/)
+ * A Mac OSX machine
+
+Once you have these items, run this make command from RocksDB's root source directory:
+
+    make jclean clean rocksdbjavastaticrelease
+
+This command will build RocksDB natively on OSX, and will then spin up two Vagrant Virtualbox Ubuntu images to build RocksDB for both 32-bit and 64-bit Linux. 
+
+You can find all native binaries and JARs in the java directory upon completion:
+
+    librocksdbjni-linux32.so
+    librocksdbjni-linux64.so
+    librocksdbjni-osx.jnilib
+    rocksdbjni-all.jar
+    rocksdbjni-linux32.jar
+    rocksdbjni-linux64.jar
+    rocksdbjni-osx.jar
+
+## Maven publication
+
+TODO

java/crossbuild/build-linux.sh

@@ -6,6 +6,7 @@ sudo apt-get -y install git make gcc g++ libgflags-dev libsnappy-dev zlib1g-dev
 # set java home so we can build rocksdb jars
 export JAVA_HOME=$(echo /usr/lib/jvm/java-7-openjdk*)
 cd /rocksdb
-make jclean clean -j 4 rocksdbjavastatic
+make jclean clean
+make -j 4 rocksdbjavastatic
 sudo shutdown -h now