Java exception during js.minify #9

farneman · 2012-02-04T20:13:44Z

While running the build script I'm getting the following error:

-js.all.minify:
[echo] Minifying scripts
[copy] Copying 2 files to /Users/Josh/Server/lee-drugs/intermediate/js
[apply] Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
[apply] at java.lang.ClassLoader.defineClass1(Native Method)
[apply] at java.lang.ClassLoader.defineClass(ClassLoader.java:676)
[apply] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
[apply] at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
[apply] at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
[apply] at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
[apply] at java.security.AccessController.doPrivileged(Native Method)
[apply] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
[apply] at java.lang.ClassLoader.loadClass(ClassLoader.java:317)
[apply] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
[apply] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
[apply] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375)
[apply] Result: 1
[apply] Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
[apply] at java.lang.ClassLoader.defineClass1(Native Method)
[apply] at java.lang.ClassLoader.defineClass(ClassLoader.java:676)
[apply] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
[apply] at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
[apply] at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
[apply] at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
[apply] at java.security.AccessController.doPrivileged(Native Method)
[apply] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
[apply] at java.lang.ClassLoader.loadClass(ClassLoader.java:317)
[apply] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
[apply] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
[apply] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375)
[apply] Result: 1
[apply] Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
[apply] at java.lang.ClassLoader.d
[apply] efineClass1(Native Method)
[apply] at java.lang.ClassLoader.defineClass(ClassLoader.java:676)
[apply] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
[apply] at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
[apply] at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
[apply] at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
[apply] at java.security.AccessController.doPrivileged(Native Method)
[apply] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
[apply] at java.lang.ClassLoader.loadClass(ClassLoader.java:317)
[apply] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
[apply] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
[apply] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375)
[apply] Result: 1

Which results in the build failing during -.js.scripts.concat.

I'm guessing this means theirs an issue with some aprt of the script trying to use a version of Java that I don't have. Any ideas?

I'm running the build script on an older PowerPC Mac running 10.5, so that may be the problem.

roblarsen · 2012-02-06T03:12:04Z

I'm not the king of Java, but from what I can tell it is down to the Java versions in play. Knowing what's happening at that point in the build script, I'd guess the version of Closure Compiler we ship with the build script must be compiled on a later version of Java than the one you have on that system.

farneman · 2012-02-07T14:49:52Z

I've test the build script on my machine at work (previous attempt was on my home machine) and it works fine on OS X 10.6 (running Java version 1.6.0_29). My 10.5 machine is running Java version 1.5.0_30 so that must be the issue. Obviously there aren't many 10.5 machines out there anymore, but should this be noted in the wiki?

roblarsen · 2012-02-07T14:53:06Z

Yeah, it's definitely something to document. Can you try compiling the tools (closure compiler and yui compressor) on your machine? That should solve this issue and I'd like to be sure that's the case before documenting it.

farneman · 2012-02-07T15:41:24Z

I just tried compiling the closure compiler version 1324 and it requires Java version 1.6 to compile. Looks like Java 1.6 will not run on PowerPC macs or 32 bit Intel Macs according to http://blogs.oracle.com/cmar/entry/java_1_6_finally_available.

There is a project called SoyLatte that looks like it would provide Java 1.6 support for 10.5 Macs. I'll try that out later and see if it will work as an alternative.

roblarsen · 2012-02-07T16:50:33Z

Thanks for taking a shot with that. If it doesn't work, we can potentially instruct people in your situation to switch back to YUI Compressor for js minification.

nicholascamp · 2012-02-12T19:54:08Z

I'm getting a similar error too, but for minifying css. That's the error:

[apply] Exception in thread "main" java.lang.reflect.InvocationTargetException
[apply] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[apply] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
[apply] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[apply] at java.lang.reflect.Method.invoke(Method.java:616)
[apply] at com.yahoo.platform.yui.compressor.Bootstrap.main(Bootstrap.java:21)
[apply] Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1847
[apply] at java.lang.AbstractStringBuilder.substring(AbstractStringBuilder.java:877)
[apply] at java.lang.StringBuffer.substring(StringBuffer.java:433)
[apply] at com.yahoo.platform.yui.compressor.CssCompressor.compress(CssCompressor.java:125)
[apply] at com.yahoo.platform.yui.compressor.YUICompressor.main(YUICompressor.java:197)
[apply] ... 5 more
[apply] Result: 1

What could that be?

roblarsen · 2012-02-17T21:43:47Z

@farneman did you ever get a chance to look at that other option for the compatibility issue? I'd like to know if there's some workaround that we can document. There's not much we can do if 1.6 is required for Closure Compiler.

farneman · 2012-02-18T21:19:51Z

@roblarsen After some digging it looks like SoyLatte may provide a solution for Intel users on 10.5, I'm not able to test that though. However the SoyLatte version for PowerPC's is Java 1.7 not 1.6, so it's not any more help. Perhaps someone more knowledgeable with Java can find a work around, but it looks like PowerPC Macs will just not be able to use the build script with the Closure Compiler.

farneman · 2012-02-20T15:47:27Z

@roblarsen I've posted a pull request to update the README to not the Java 1.6 requirement.

roblarsen · 2012-02-20T15:52:55Z

Thanks. I merged the pull request. I might go back and write up some more detailed requirements, but for now I'm happy to just have the general issue documented.

henryrose-zz · 2013-01-17T17:47:49Z

I'm experiencing something similar and wondering if anyone could help me troubleshoot. During the -js.main.concat task get what appears to be an UnsupportedClassVersion Error, but the error message is interspersed with other output:

-js.main.concat:
     [echo] Concatenating Main JS scripts based on index.html…
     [exec] Result: 1
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/Exception does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/in does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/thread does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/"main" does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.lang.UnsupportedClassVersionError: does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/FindAttribute does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/: does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/Unsupported does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/major.minor does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/version does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/51.0 does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.lang.ClassLoader.defineClass1(Native does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/Method) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.lang.ClassLoader.defineClass(ClassLoader.java:615) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.net.URLClassLoader.defineClass(URLClassLoader.java:283) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.net.URLClassLoader.access$000(URLClassLoader.java:58) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.net.URLClassLoader$1.run(URLClassLoader.java:197) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.security.AccessController.doPrivileged(Native does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/Method) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.net.URLClassLoader.findClass(URLClassLoader.java:190) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.lang.ClassLoader.loadClass(ClassLoader.java:306) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/at does not exist.
   [concat] /Users/henryrose/Sites/scroll-test/intermediate/java.lang.ClassLoader.loadClass(ClassLoader.java:247) does not exist.

This translates to:

 Exception in thread "main" java.lang.UnsupportedClassVersionError: FindAttribute : 
 Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) 
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) 
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615) 
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) 
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) 
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58) 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

For reference I'm on

OS X 10.8.2
Lastest and greatest from 1.0 branch of ant-build-script

Here's the output from java -version:

java version "1.6.0_37"
Java(TM) SE Runtime Environment (build 1.6.0_37-b06-434-11M3909)
Java HotSpot(TM) 64-Bit Server VM (build 20.12-b01-434, mixed mode)

henryrose-zz · 2013-01-17T18:14:02Z

This is issue was resolved for me by installing the Java 7 JDK.

larseggert · 2013-01-22T13:26:03Z

Had the same issue as henryrose, fix worked. (But is kinda heavyweight.)

roblarsen · 2013-01-22T14:58:19Z

This should be fixed in the 1.0 branch.

The issue is the version of Java the ScriptsToConcat file is compile with. You can fix it easier by recompiling that file locally.

ghost · 2013-01-25T09:39:13Z

It doesn't seem to be fixed on the actual repo version, at least for mac OS 10.7.4 with Java 1.6.0_37.
Recompiling the ScriptsToConcat works perfectly though, this could temporaly be added in the readme

roblarsen · 2013-01-25T12:45:44Z

It's not fixed in the main version. I'm only a week or two away from getting everything sorted so I've basically stopped work on the main version. Adding it to the docs for a couple of weeks is a good idea.

farneman mentioned this issue Feb 20, 2012

README requirements update #22

Merged

roblarsen closed this as completed Feb 20, 2012

jmaheux mentioned this issue Jan 28, 2013

Javascript files don't get copied to publish directory #132

Closed

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Java exception during js.minify #9

Java exception during js.minify #9

farneman commented Feb 4, 2012

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roblarsen commented Jan 22, 2013

ghost commented Jan 25, 2013

roblarsen commented Jan 25, 2013

Java exception during js.minify #9

Java exception during js.minify #9

Comments

farneman commented Feb 4, 2012

roblarsen commented Feb 6, 2012

farneman commented Feb 7, 2012

roblarsen commented Feb 7, 2012

farneman commented Feb 7, 2012

roblarsen commented Feb 7, 2012

nicholascamp commented Feb 12, 2012

roblarsen commented Feb 17, 2012

farneman commented Feb 18, 2012

farneman commented Feb 20, 2012

roblarsen commented Feb 20, 2012

henryrose-zz commented Jan 17, 2013

henryrose-zz commented Jan 17, 2013

larseggert commented Jan 22, 2013

roblarsen commented Jan 22, 2013

ghost commented Jan 25, 2013

roblarsen commented Jan 25, 2013