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Message-ID: <49bf44f10811172026q6ce99aa9m5278376b005581c7@mail.gmail.com>
Date: Mon, 17 Nov 2008 20:26:57 -0800
From: Grant <emailgrant@gmail.com>
To: "Gentoo mailing list" <gentoo-user@lists.gentoo.org>
Subject: Re: [gentoo-user] Java "bad version number" - what to up/downgrade?
In-Reply-To: <200811181238.23819.podge@podgeweb.com>
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<200811181238.23819.podge@podgeweb.com>
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>> I'm getting the following from dumphd:
>>
>> "bad version number in .class file"
>>
>> I gather that I may have the wrong version of something Java installed
>> but I don't know how that works. Can anyone tell me what package I
>> should try upgrading or downgrading?
>
> This normally means the class file is from a new version of Java then the
> virtual machine trying to run it (i.e. class files compiled under Java 1.5,
> but your trying to run it in Java 1.4).
>
> "java-config -L" (without quotes) will show you what virtual machines you have
> installed. On my machine it shows (the asterisk is the currently selected
> one, i.e. what will be used to run java applications):
>
> podge@venus ~ $ java-config -L
> The following VMs are available for generation-2:
> 1) Blackdown JDK 1.4.2.03 [blackdown-jdk-1.4.2]
> 2) Sun JDK 1.5.0.16 [sun-jdk-1.5]
> *) Sun JDK 1.6.0.07 [sun-jdk-1.6]
> podge@venus ~ $
>
> If the newest VM isn't selected as the default, read the man page for
> java-config and tell it to set the newest one as default (1.6 is the newest
> version).
>
> Shawn
Thank you very much. Since I'm not a Java developer, do I want jre as
opposed to jdk?
- Grabt