Error encountered while doing Migration from WLS 8.1 to WLS 10.0

[shobit shrivastava]

Hello All ,

We are trying to do a WLS migrate(8.1 to 10.0) for a java/j2ee based application. We did not face any issues while compling application code (using jdk 1.5 & weblogic.jar of WLS 10.0) but while running the ant build script , we encountered an error while executing below part

  <java classname="weblogic.appc" fork="true" maxmemory="${appc.java.maxmemory}" failonerror="true">
        	<classpath>
  	     		<pathelement path="${project.classpath}"/>
  			</classpath>    
  
  			<jvmarg line="${appc.java.options} -Djava.io.tmpdir=${appc.tmp.dir}"/>
  
  			<arg line="-compiler ${appc.compiler} -output ${_appc.output}
  				-classpath ${_appc.classpath}
  				${bmwslc.param.options}
  	  			${appc.additional.options} 
  				${_appc.input}" />                
      		</java>  

Following is the error , which we encountered

  [java] Usage: java weblogic.appc [options] <ear, jar, war or rar file or directory>
     [java] where options include:
     [java]     -help             Print the standard usage message.            
     [java]     -version          Print version information.                   
     [java]     -output <file>    Specifies an alternate output archive or     
     [java]                       directory.  If not set, output will be       
     [java]                       placed in the source archive or directory.   
     [java]     -plan <file>      Specifies an optional deployment plan.       
     [java]     -forceGeneration  Force generation of EJB and JSP classes.     
     [java]                       Without this flag the classes may not be     
     [java]                       regenerated if it is determined to be        
     [java]                       unnecessary.                                 
     [java]     -quiet            Turns off output except for errors           
     [java]     -lineNumbers      Add JSP line numbers to generated class      
     [java]                       files to aid in debugging.                   
     [java]     -library <file>   Comma-separated list of libraries. Each      
     [java]                       library may optionally set its name and      
     [java]                       versions, if not already set in its          
     [java]                       manifest, using the following syntax: <file> 
     [java]                       [@name=<string>@libspecver=<version>         
     [java]                       @libimplver=<version|string>]                
     [java]     -librarydir <dir> Registers all files in specified directory   
     [java]                       as libraries.                                
     [java]     -writeInferredDescriptors Write out the descriptors with inferred    
     [java]                       information including annotations.           
     [java]     -keepgenerated    Keep the generated .java files.              
     [java]     -verbose          Compile with verbose output.                 
     [java]     -classpath <path> Classpath to use.                            
     [java]     -source <source>  Source version.                              
     [java]     -target <target>  Target version.                              
     [java]     -advanced         Print advanced usage options.                
     [java] <May 18, 2010 12:36:19 PM CEST> <Error> <J2EE> <BEA-160187> <weblogic.appc failed to compile your application. Recompile with the -verbose option for more details. Please see the error message(s) below.> 
     [java] [J2EE:160128]ERROR: Incorrect appc command-line. Too many arguments were given. The command-line only takes a single argument, the source file, in addition to the supported options.  

Any insight on the above scenario will be a great help.

Regards
Shobit

[Ed Ward]

I suspect this is more of an Ant issue than a Weblogic one. But a guess would be that the variables are being expanded in such a way that appc is seeing more than one input file.
What is the value of ${_appc.input} when Ant gets to it?
It should be a single jar file I think.
Are ${bmwslc.param.options} and ${appc.additional.options} set with valid appc option parms?

It would be kind of a pain, but for debugging purposes try replacing (one by one) all the variables in the <arg> element with hardcoded strings and see what happens.

[shobit shrivastava]

Thanks Edward for your suggestion !!.

I have already followed the hard coded string approach suggested by you before posting the problem in forum but no success in nailing down the problem.

All the arguments looks correct to me while debugging . here is the summary of echo statements

${appc.additional.options} =""
${bmwslc.param.options} ="-forceGeneration"
${_appc.input}="test_ear-generic.ear"

I am dumb struck because all the parameters seems to be correct

Please suggest any other thoughts , which you have in mind .

Thanks in advance !

Regards
Shobit

[Ed Ward]

Kinda of at a loss then if you're sure everything is setup right. Maybe there's a problem with the ear your passing in or with running appc via the Ant <java> task.
Have you tried running appc from the command line on this ear?
Weblogic does have an Ant appc task: <wlappc>

See.Weblogic wlappc task

Though I have never used it.

Sorry am unable to be of more assitance.

[shobit shrivastava]

Hello Edward !

Thank you again !

I am able to get much more about the stack trace but unable to comprehend it much . please see the stack trace below :

       [java] <May 25, 2010 8:33:51 AM CEST> <Error> <J2EE> <BEA-160187> <weblogic.appc failed to compile your application. Recompile with the -verbose option for more details. Please see the error message(s) below.>
     [java] There are 1 nested errors:
     [java] java.lang.NullPointerException
     [java] at weblogic.utils.FileUtils.remove(FileUtils.java:274)
     [java] at weblogic.utils.FileUtils.remove(FileUtils.java:287)
     [java] at weblogic.servlet.jsp.JspcInvoker.compile(JspcInvoker.java:250)
     [java] at weblogic.application.compiler.AppcUtils.compileWAR(AppcUtils.java:362)
     [java] at weblogic.application.compiler.WARModule.compile(WARModule.java:236)
     [java] at weblogic.application.compiler.flow.CompileModuleFlow.compileModules(CompileModuleFlow.java:103)
     [java] at weblogic.application.compiler.flow.CompileModuleFlow.compile(CompileModuleFlow.java:58)
     [java] at weblogic.application.compiler.FlowDriver$FlowStateChange.next(FlowDriver.java:70)
     [java] at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
     [java] at weblogic.application.compiler.FlowDriver.nextState(FlowDriver.java:36)
     [java] at weblogic.application.compiler.FlowDriver.run(FlowDriver.java:26)
     [java] at weblogic.application.compiler.EARCompiler.compile(EARCompiler.java:50)
     [java] at weblogic.application.compiler.flow.AppCompilerFlow.compileInput(AppCompilerFlow.java:118)
     [java] at weblogic.application.compiler.flow.AppCompilerFlow.compile(AppCompilerFlow.java:43)
     [java] at weblogic.application.compiler.FlowDriver$FlowStateChange.next(FlowDriver.java:70)
     [java] at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
     [java] at weblogic.application.compiler.FlowDriver.nextState(FlowDriver.java:36)
     [java] at weblogic.application.compiler.FlowDriver.run(FlowDriver.java:26)
     [java] at weblogic.application.compiler.Appc.runBody(Appc.java:181)
     [java] at weblogic.utils.compiler.Tool.run(Tool.java:158)
     [java] at weblogic.utils.compiler.Tool.run(Tool.java:116)
     [java] at weblogic.application.compiler.Appc.main(Appc.java:193)
     [java] at weblogic.appc.main(appc.java:15)
  

The other approach suggested by you i.e. using wlappc task (Weblogic specific appc task) by executing below script file

  <?xml version="1.0" encoding="ISO-8859-1"?>

<project name="WeblogicCompilation" basedir="." default="appc">

	<property name="wl.home" value="C:/bea/wlserver_10.0/server"/>
	<property name="application.dir" value="C:\Documents and Settings\QX88865\workspace\Component\vtv_model_implementation\contract_ear\.bmwslc\tmp\test_ear-generic.ear"/>

	<path id="wlappc.classpath">
	<fileset dir="${wl.home}/lib">
	<include name="*.jar"/>
	</fileset>
	</path>

	<taskdef name="wlappc" classpathref="wlappc.classpath" classname="weblogic.ant.taskdefs.j2ee.Appc"/>

	<target name="appc">
	<wlappc source="${application.dir}"
	keepgenerated="true"
	verbose="true"
	output="${application.dir}_Output"
	/>
	</target>
	
</project>
  
  

Though i was not completely successful to compile the ear file but the error popped up was different (about some missing jar) files) not the Incorrect appc command-line error .

So above analysis suffice that Ear file is correct . there could be problem with Ant . Could you please see the above stack trace of error and infer any thing ?

Any thought will be a great help

Regards
Shobit