README:

  This file should be located at the top of the jdk Mercurial repository.

  See http://openjdk.java.net/ for more information about the OpenJDK.

Simple Build Instructions:

  1. Download and install a JDK 6 from

     http://java.sun.com/javase/downloads/index.jsp

     Set the environment variable ALT_BOOTDIR to the location of this JDK 6.

  2. Either download and install the latest JDK7 from

     http://download.java.net/openjdk/jdk7/, or build your own complete

     OpenJDK7 by using the top level Makefile in the OpenJDK Mercurial forest.

     Set the environment variable ALT_JDK_IMPORT_PATH to the location of

     this latest JDK7 or OpenJDK7 build.

  3. Check the sanity of doing a build with the current machine:

       cd make && gnumake sanity

     See README-builds.html if you run into problems.

  4. Do a partial build of the jdk:

       cd make && gnumake all

  5. Construct the images:

       cd make && gnumake images

     The resulting JDK image should be found in build/*/j2sdk-image