Confirming JDK 8 GA version

David Holmes david.holmes at
Fri Dec 5 00:41:51 UTC 2014

Just to further clarify things, the hotspot version is set in the build 



so that is why you see it in your local build. The JDK version string, 
as Erik says, takes on values based on configure arguments (if passed) 
else defaults (that can include timestamps). The official Oracle JDK 
builds use a specific format for the JDK version string.

Also if you look in hotspot/.hgtags you will see the last two lines:

9f9179e8f0cfe74c08f3716cf3c38e21e1de4c4a hs25-b70
0c94c41dcd70e9a9b4d96e31275afd5a73daa72d jdk8-b132

confirming that JDK8-b132 corresponds to hotspot hs25-b70.


On 4/12/2014 6:50 PM, Erik Joelsson wrote:
> On 2014-12-03 21:54, Medi Montaseri wrote:
>> Thanks David and Erik,
>> A bit more confused...I don't know what hotspot is.
> Hotspot is the jvm, basically (and a few of the support libs)
> and has historically been treated as a separate project from the rest of
> the jdk. Because of that it has its own version string. When you run
> java -version in jdk8, you see three lines. The last one that says "VM"
> belongs to Hotspot. It ignores the input from configure.
>> I am aware of configure --with-build-number and --with-milestone and
>> indeed use them....and that is why I get
>> bin/java -version
>> openjdk version "1.8.0-20141202"            // note how this version
>> is stamped with a date
>> OpenJDK Runtime Environment (build 1.8.0-20141202-HDS-174701)
>> // note how this portion is also decorated with date, label and more
>> numbers
>> OpenJDK 64-Bit Server VM (build 25.0-b70, mixed mode)
>>                                                          ^^^^      ///
>> what is this b70
>> The b70 makes me think that I am not working with the tip
> Look at that line with "VM" and "b70" and compare it to the same line
> from jdk8 GA. They are the exact same.
>> Let me ask the question another way...
>> If I pull the latest and "hg tags" says b132 as in
>>>>      unix> cd srcDir/jdk ; hg tags | head -2
>>>>     tip                             9107:687fd7c7986d
>>>>     jdk8-b132                   9106:43cb25339b55
>> Can I then be sure that I am indeed working with the tip...?
> AFAIK yes.
>> see how yours is showing the b132
>>> java version "1.8.0"
>>> Java(TM) SE Runtime Environment (build 1.8.0-b132)       // look
>>> there is the b132 thing  -b132
>>> Java HotSpot(TM) Server VM (build 25.0-b70, mixed mode)
> Yes, this shows b132, in the line that is only defined by configure
> arguments, and that you are setting to something else.
> /Erik
>> Again, I need to make sure I have the latest and be able to query some
>> binary (java or javac) to show that it is the latest.
>> Thanks
>> Medi
>> ________________________________________
>> From: Erik Joelsson [erik.joelsson at]
>> Sent: Wednesday, December 03, 2014 12:33 AM
>> To: David Holmes; Medi Montaseri; build-dev at
>> Subject: Re: Confirming JDK 8 GA version
>> The source/makefiles are not aware of the build number. It's assigned
>> from an external source at the time of building a promoted build. If you
>> want your version number to better match 8 GA, you will have to play
>> around with the configure arguments --with-build-number and possibly
>> --with-milestone.
>> Also, as David pointed out, in JDK 8, hotspot has it's own numbering.
>> /Erik
>> On 2014-12-03 06:13, David Holmes wrote:
>>> On 3/12/2014 12:25 PM, Medi Montaseri wrote:
>>>> Hi,
>>>> Just wanted to confirm some issues:
>>>> I am interested in building the latest (tip) of jdk8 GA release.
>>>> 1- jdk8 GA is different from jdk8u (u is for updates), I should get
>>>> the src from
>>>> 2- The latest tagged version of the src is
>>>> "jdk8-b132                       9106:43cb25339b55"
>>>> 3- I confirm that I have the latest src (for GA) by running "hg tags"
>>>> like
>>>>      unix> cd srcDir/jdk ; hg tags | head -2
>>>>     tip                             9107:687fd7c7986d
>>>>     jdk8-b132                   9106:43cb25339b55
>>>> I go ahead and build everything and then run "java -version" and I see
>>>> openjdk version "1.8.0-20141202"
>>>> OpenJDK Runtime Environment (build 1.8.0-20141202-HDS-174701)
>>>> OpenJDK 64-Bit Server VM (build 25.0-b70, mixed mode)
>>>> Q- Why am I seeing "build 25.0-b70" ? Does this "b70" has anything to
>>>> do with above "jdk8-b132" ?
>>> That is the hotspot version number and build number as used in the GA
>>> build of JDK 8. It is correct.
>>> java version "1.8.0"
>>> Java(TM) SE Runtime Environment (build 1.8.0-b132)
>>> Java HotSpot(TM) Server VM (build 25.0-b70, mixed mode)
>>> David
>>> -----
>>>> Thanks
>>>> Medi

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