Weblogic domain creation error "Unable to invoke parse in InvokeStaticMethodTask"

While creating weblogic domain on linux server below error is encountered.

Steps:
export WLS_HOME=/opt/apps/Oracle/Middleware
export WLS_SERVER=/opt/apps/Oracle/Middleware/wlserver_10.3
export ORACLE_HOME=/opt/apps/Oracle/Middleware/Oracle_SOA1
export JAVA_HOME=/opt/apps/Java6/jdk1.6.0_20
export WLS_DOMAIN=/opt/apps/Oracle/Middleware/user_projects/domains
cd $ORACLE_HOME/common/bin
./config.sh



Here is the full stack trace of the error.

2010-08-02 09:56:28,142 ERROR [invokeStaticMethod] com.bea.plateng.wizard.silent.tasks.InvokeStaticMethodTask - Unable to invoke parse on class com.bea.plateng.plugin.PlugInExecutionPlanParser>
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.bea.plateng.wizard.silent.tasks.InvokeStaticMethodTask.execute(InvokeStaticMethodTask.java:304)
at com.bea.plateng.wizard.silent.tasks.AbstractSilentTask.run(AbstractSilentTask.java:28)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NullPointerException
at java.io.FileInputStream.<init>(FileInputStream.java:103)
at java.io.FileInputStream.<init>(FileInputStream.java:66)
at com.bea.plateng.plugin.PlugInExecutionPlanParser.parse(PlugInExecutionPlanParser.java:111)
at com.bea.plateng.plugin.PlugInExecutionPlanParser.parse(PlugInExecutionPlanParser.java:90)
... 7 more
2010-08-02 09:56:28,145 ERROR [invokeStaticMethod] com.bea.plateng.wizard.silent.tasks.InvokeStaticMethodTask - parameterValue 0 = <null>

The problem is the classpath for launching the configuration wizard.

/opt/apps/Oracle/Middleware/patch_wls1032/profiles/default/sys_manifest_classpat
h/weblogic_patch.jar:/opt/apps/Java6/jdk1.6.0_20/lib/tools.jar:/opt/apps/Oracle/
Middleware/utils/config/10.3.1.0/config-launch.jar:.......

The source of this classpath entry is from $WLS_HOME/common/bin/commEnv.sh
The highlighted entry is invalid. It should point to 10.3 and not 10.3.1.0. Once this is changed the Configuration Wizard can be launched successfully for domain creation