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README
author rfield
Tue, 14 May 2013 11:11:09 -0700
changeset 17575 7693e6ff0d7d
parent 15787 496cd89abcc5
child 24418 a6318a06a0e5
permissions -rw-r--r--
8012556: Implement lambda methods on interfaces as static 8006140: Javac NPE compiling Lambda expression on initialization expression of static field in interface Summary: Lambdas occurring in static contexts or those not needing instance information should be generated into static methods. This has long been the case for classes. However, as a work-around to the lack of support for statics on interfaces, interface lambda methods have been generated into default methods. For lambdas in interface static contexts (fields and static methods) this causes an NPE in javac because there is no 'this'. MethodHandles now support static methods on interfaces. This changeset allows lambda methods to be generated as static interface methods. An existing bug in Hotspot (8013875) is exposed in a test when the "-esa" flag is used. This test and another test that already exposed this bug have been marked with @ignore. Reviewed-by: mcimadamore

README:
  This file should be located at the top of the OpenJDK Mercurial root
  repository. A full OpenJDK repository set (forest) should also include
  the following 6 nested repositories:
    "jdk", "hotspot", "langtools", "corba", "jaxws"  and "jaxp".

  The root repository can be obtained with something like:
    hg clone http://hg.openjdk.java.net/jdk8/jdk8 openjdk8
  
  You can run the get_source.sh script located in the root repository to get
  the other needed repositories:
    cd openjdk8 && sh ./get_source.sh

  People unfamiliar with Mercurial should read the first few chapters of
  the Mercurial book: http://hgbook.red-bean.com/read/

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

Simple Build Instructions:
  
  0. Get the necessary system software/packages installed on your system, see
     http://hg.openjdk.java.net/jdk8/jdk8/raw-file/tip/README-builds.html

  1. If you don't have a jdk7u7 or newer jdk, download and install it from
     http://java.sun.com/javase/downloads/index.jsp
     Add the /bin directory of this installation to your PATH environment
     variable.

  2. Configure the build:
       bash ./configure
  
  3. Build the OpenJDK:
       make all
     The resulting JDK image should be found in build/*/images/j2sdk-image

where make is GNU make 3.81 or newer, /usr/bin/make on Linux usually
is 3.81 or newer. Note that on Solaris, GNU make is called "gmake".

Complete details are available in the file:
     http://hg.openjdk.java.net/jdk8/jdk8/raw-file/tip/README-builds.html
jdk-sandbox