Boot JDK requirements for 8 ?

Erik Joelsson erik.joelsson at oracle.com
Wed Dec 5 01:45:12 PST 2012


I found the source of this. It's the special javah call for the jdk.base 
classes. This is removed in build-infra but hasn't propagated to jdk8 yet.

/Erik

On 2012-12-05 09:14, Erik Joelsson wrote:
> I have seen these at times too, but can't remember where just now. 
> Will of course investigate if I manage to reproduce again.
>
> /Erik
>
> On 2012-12-05 01:37, David Holmes wrote:
>> This is a build-infra build using profiles forest but I think is a 
>> general issue :)
>>
>> I use a JDK 7 as a boot JDK. I've noticed that now javac produces 
>> version 52 classes files the build produces lots of these "warnings"
>>
>> Generating headers for jdk base classes
>> Compiling 1 files for BUILD_ALTCLASSES_JAR
>> /java/embedded/users/dh198349/profiles/builds/b66/se-linux-i586-ea/jdk/classes/java/lang/Integer.class: 
>> major version 52 is newer than 51, the highest major version 
>> supported by this compiler.
>>   It is recommended that the compiler be upgraded.
>>
>> I'm not sure exactly where this comes from.
>>
>> David



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