Compiling error on Mac OS Leopard / GWT 2.0

Steffen

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Jan 24, 2010, 8:45:53 PM1/24/10

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Hi,

I tried to run a sample app project using GIN. When compiling, I get
the following error:

Loading inherited module 'com.google.gwt.inject.Inject'
[ERROR] Unexpected error while processing XML
java.lang.UnsupportedClassVersionError: Bad version number in .class
file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:
124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
...

There has been an issue raised a couple of weeks ago (#55). However,
it says that there are no problems when using GWT 2.0, the version I
am using. I couldnt find any workaround.

Can anybody help?

Thanks very much! Steffen

Peter Schmitt

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Jan 25, 2010, 12:30:31 AM1/25/10

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This usually happens if you compile your classes with one version of java and then try to run them in the wrong context. I'm not even sure what classes your example is loading (can't tell from the stack trace). Are you using the precompiled Gin jar or do you make your own?

Peter

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Steffen

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Jan 25, 2010, 7:05:36 AM1/25/10

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Hi Peter,

I am using a precompiled Gin jar, the one I have downloaded here...
So, I simply have to compile a new version from source provided here
as well?

Steffen

On Jan 25, 6:30 am, Peter Schmitt <ara...@gmail.com> wrote:
> This usually happens if you compile your classes with one version of java
> and then try to run them in the wrong context. I'm not even sure what
> classes your example is loading (can't tell from the stack trace). Are you
> using the precompiled Gin jar or do you make your own?
>
> Peter
>

> > google-gin+...@googlegroups.com<google-gin%2Bunsu...@googlegroups.com>

Tercio Filho

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Jan 26, 2010, 12:59:46 PM1/26/10

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You could try my nightly build at:

http://0x3333.com.br/builds/google-gin/

Mine is compiled against java 1.5(I add a target="1.5" in the
build.xml). May help.

Regards,

Tercio

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