Extract JDK from Windows installer

prepareJdk.sh

#!/bin/sh
# usage example: prepareJdk.sh jdk-7u67-windows-x64.exe (result will be in jdk/)
# Requires: p7zip, unzip

JDK_EXE=$1
7z x -ojdk "$JDK_EXE"
unzip jdk/tools.zip -d jdk/

find jdk/ -type f \( -name "*.exe" -o -name "*.dll" \) -exec chmod u+rwx {} \;

rm jdk/tools.zip
find jdk/ -type f -name "*.pack" | while read eachFile; do
	echo "Unpacking $eachFile ...";
	./jdk/bin/unpack200.exe $eachFile ${eachFile%.pack}.jar;
	rm $eachFile;
done