Build openjdk?

[Kelly O'Hair]

That is NOT open source and is not the OpenJDK.

Please refer to http://openjdk.java.net/
and http://download.java.net/openjdk/jdk7/

-kto

Peng Yu wrote:
> Hi,
> 
> I don't have root permission on my machine.
> 
> In this case, shall I use the source?
> 
> http://www.java.net/download/jdk6/6u18/promoted/b02/jdk-6u18-ea-src-b02-jrl-09_sep_2009.jar
> 
> How to install it? I got the following error.
> 
> $ java jdk-6u18-ea-src-b02-jrl-09_sep_2009.jar
> Exception in thread "main" java.lang.NoClassDefFoundError:
> jdk-6u18-ea-src-b02-jrl-09_sep_2009.jar
>    at gnu.java.lang.MainThread.run(MainThread.java:102)
> Caused by: java.lang.ClassNotFoundException:
> jdk-6u18-ea-src-b02-jrl-09_sep_2009.jar not found in
> gnu.gcj.runtime.SystemClassLoader{urls=[file:./],
> parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
>    at java.net.URLClassLoader.findClass(URLClassLoader.java:529)
>    at java.lang.ClassLoader.loadClass(ClassLoader.java:442)
>    at java.lang.ClassLoader.loadClass(ClassLoader.java:377)
>    at gnu.java.lang.MainThread.run(MainThread.java:98)
> 
> 
> Regards,
> Peng
> 
> On Thu, Sep 17, 2009 at 6:06 PM, Peng Yu <pengyu.ut at gmail.com> wrote:
>> Hi,
>>
>> I'm not sure which one I should download on
>> http://java.sun.com/javase/downloads/index.jsp
>>
>> Java SE Development Kit (JDK) Bundles
>>
>> or
>>
>> Java SE Development Kit (JDK)
>>
>> What are Java EE, JavaFX SDK and NetBeans 6.7.1?
>>
>> Regards,
>> Peng
>>
>> On Thu, Sep 17, 2009 at 5:37 PM, Kelly O'Hair <Kelly.Ohair at sun.com> wrote:
>>> You need a JDK to build the JDK.
>>>
>>> If you have a JDK (jdk6 vintage) on your system already, yes
>>> you can use that, just point ALT_BOOTDIR at it and skip step 1.
>>>
>>> -kto
>>>
>>> Peng Yu wrote:
>>>> Hi,
>>>>
>>>> README of openjdk-7-ea-src-b71-03_sep_2009 says the following. I am
>>>> wondering why I need step 1. Can I start with step 2 directly?
>>>>
>>>> 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. Download and install the Binary Plugs for the most recent JDK7 from
>>>>     http://download.java.net/openjdk/jdk7/
>>>>     Set the environment variable ALT_BINARY_PLUGS_PATH to the location of
>>>>     these binary plugs.
>>>>
>>>>  3. Check the sanity of doing a build with the current machine:
>>>>       gnumake sanity
>>>>     See README-builds.html if you run into problems.
>>>>
>>>>  4. Do a complete build of the jdk:
>>>>       gnumake all
>>>>     The resulting JDK image should be found in build/*/j2sdk-image
>>>>
>>>>
>>>> Regards,
>>>> Peng