java -version output for JDK8

[Omair Majid]

On 07/25/2013 01:03 PM, Kumar Srinivasan wrote:
> On 7/24/2013 11:13 PM, David Holmes wrote:
>> On 24/07/2013 5:05 PM, Omair Majid wrote:
>>> Hi,
>>>
>>> It was just brought to my attention that the output of java -version is
>>> different on builds of jdk8 when compared to jdk7 [1]:
>>>
>>> # java -version
>>> openjdk version "1.8.0-internal"
>>> OpenJDK Runtime Environment (build 1.8.0-internal-0)
>>> OpenJDK 64-Bit Zero VM (build 25.0-b20-internal, interpreted mode)
>>>
>>> # java -version
>>> java version "1.7.0_25"
>>> OpenJDK Runtime Environment (fedora-2.3.10.3.fc19-ppc64)
>>> OpenJDK 64-Bit Zero VM (build 23.7-b01, interpreted mode)
>>>
>>> OpenJDK 7 identifies itself as "java version...." while OpenJDK 8
>>> identifies itself as "openjdk version...". Is this intentional? Will
>>> this be changed after Java 8 is finalized?
>>
>> It comes from  common/autoconf/version-numbers which has:
>>
>> LAUNCHER_NAME=openjdk
>>
>> which seems to be a mistake to me as obviously the launcher name is
>> not openjdk.
> 
> This was introduced to differentiate between an openjdk build vs. Oracle's
> jdk build (with closed). There used to be some make magic which deciphers
> what to set.

I thought all Java versions claimed "java version #.#.#_#", including
those from other proprietary vendors.

Also, the lines after "java version" make OpenJDK explicit, no? Is this
second line not sufficient to distinguish OpenJDK vs closed builds?

# java -version
java version "1.7.0_25"
OpenJDK Runtime Environment (fedora-2.3.10.3.fc19-ppc64)  <--- this line
OpenJDK 64-Bit Zero VM (build 23.7-b01, interpreted mode)

Thanks,
Omair

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