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Index › Processing Development › Libraries,  Tool Development › Needs to be compiled in Java 1.5
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Needs to be compiled in Java 1.5 (Read 2917 times)
steven
Needs to be compiled in Java 1.5
Jan 21st, 2010, 10:29am  
Hello,

I tried some of the new libraries released this week and I get this message for the KEYSTONE and SURFACELIB libraries:

This version of Processing only supports libraries and JAR files compiled for Java 1.5.
A library used by this sketch was compiled for Java 1.6 or later,
and needs to be recompiled to be compatible with Java 1.5.

I installed Java 1.6 for Mac OS X 10.5 but still get the same error.
I'm using Processing 1.0.9

Is there any other workaround?

Thanks
Steven
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ekenei
Re: Needs to be compiled in Java 1.5
Reply #1 - Jan 21st, 2010, 11:32am  
Yes you can use the src to recompile them to java 1.5. i recompiled the surfacelib earlier this week and put it here... http://ekeneijeoma.com/processing/surfacelib/download/SurfaceLib.zip
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steven
Re: Needs to be compiled in Java 1.5
Reply #2 - Jan 21st, 2010, 12:20pm  
Thanks for the quick reply.

It's my first time compiling a library so of course I encountered problems.
I'm using terminal to compile the library using javac *.java in the folder I want to compile.

no matter what library I try to compile, I always get errors at the end.
The first error is this:

Keystone.java:24: package processing.core does not exist
import processing.core.*;

So I'm guessing I'm missing some very important knowledge.

Can you lend me a hand ?

Cheers
Steven
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PhiLho 
Re: Needs to be compiled in Java 1.5
Reply #3 - Jan 21st, 2010, 12:42pm  
javac -classpath <path to processing>/lib/core.jar *.java
although you might need to take in account the library's package declaration too.
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dB
Re: Needs to be compiled in Java 1.5
Reply #4 - Jan 24th, 2010, 9:44am  
Sorry about that! I re-compiled the library with Java 1.5 and updated the ZIP file on the website.   Hopefully this should fix your issue.

d.
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Jakub Kozniewski
Re: Needs to be compiled in Java 1.5
Reply #5 - Jan 26th, 2010, 11:02am  
hi.. are you sure ?
I've just downloaded zip from
the lib website and the error mentioned in this thread still exists...
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eskimoblood
Re: Needs to be compiled in Java 1.5
Reply #6 - Jan 26th, 2010, 2:32pm  
I've update the file compiled with 1.5.
http://code.google.com/p/surfacelib/
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Andreas Köberle {eskimoblood}
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dB
Re: Needs to be compiled in Java 1.5
Reply #7 - Jan 28th, 2010, 10:54am  
That's strange.

I just double-checked, re-compiled everything with Java 1.5.  Here's what the manifest file says in the JAR file:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.1
Created-By: 1.5.0_19-137 (Apple Inc.)

My ant config in Eclipse uses both the <javac> source and target argument, set to Java 1.5.  The JRE in Eclipse is set to 1.5.  Yet the JAR still doesn't work in Processing /w Java 1.5

Is that version of Java not supported by Processing?  I'm going to have to look into it further.  Sorry for the delay.  I will update here when I fix it (anybody has an idea?)

d.
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Jakub Kozniewski
Re: Needs to be compiled in Java 1.5
Reply #8 - Jan 30th, 2010, 3:45am  
I've sent you a PM with a link to recompiled jar
( I have no problem in compiling it for java 1.5 via Eclipse on mac osx 10.5.7, maybe that's because I've not updated java to 1.6 on my machine... )
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Jakub Kozniewski
Re: Needs to be compiled in Java 1.5
Reply #9 - Jan 30th, 2010, 3:46am  
ah.. I've placed the jar here for you guys Smiley
http://jkozniewski.com/test/keystone.jar
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steven
Re: Needs to be compiled in Java 1.5
Reply #10 - Jan 30th, 2010, 12:25pm  
Thanks! it works!! Smiley
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