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From <Marco.Mistr...@nokia.com>
Subject problem in running CORBA program using ant
Date Tue, 05 Mar 2002 11:22:49 GMT
hi all,
	i have written a program that uses CORBA (from JDK packages).
i wrote a build.xml for launching this program, but i got always
this exception:

java.lang.NoClassDefFoundError: org/omg/CORBA/portable/IDLEntity
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader
.java:862)
        at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoa
der.java:916)
        at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:898
)
        at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:801
)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
        at java.lang.Class.getMethod0(Native Method)
        at java.lang.Class.getMethod(Class.java:888)
        at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:12
3)
        at org.apache.tools.ant.taskdefs.Java.run(Java.java:305)
        at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:127)
        at org.apache.tools.ant.taskdefs.Java.execute(Java.java:88)
        at org.apache.tools.ant.Task.perform(Task.java:217)
        at org.apache.tools.ant.Target.execute(Target.java:184)
        at org.apache.tools.ant.Target.performTasks(Target.java:202)
        at org.apache.tools.ant.Project.executeTarget(Project.java:601)
        at org.apache.tools.ant.Project.executeTargets(Project.java:560)
        at org.apache.tools.ant.Main.runBuild(Main.java:454)
        at org.apache.tools.ant.Main.start(Main.java:153)
        at org.apache.tools.ant.Main.main(Main.java:176)


here is the content of my build.xml file

<project name="MyDemo" default="run"   basedir=".">

  <!-- set global properties for this build -->
  
  <property name="build" value="build"/>
  <property name="dist"  value="dist"/>
  <property name="JAVA_HOME" value="d:\jdk1.3.1"/>
  <property name="XML_LIB" value="d:\lib\xml_lib"/>
  <property name="DIST_LIB" value="d:\dist\lib"/>    
  
  

  <target name="run">
    <!-- run the Sun version of SBSClient -->
    <java classname="MyClient">
    <classpath>
         <pathelement location="${DIST_LIB}\MyClient.jar"/> 
         <pathelement location="${XML_LIB}\castor-xml.jar"/>
         <pathelement location="${XML_LIB}\xerces.jar"/>
         <pathelement location="${XML_LIB}\jaxp.jar"/>
         
               
     </classpath>
    
   </java>
  </target>
   
</project>

weird thing is that, when i use ORBIX CORBA packages (and thus
specify with the -D some system properties) everything works fine.

>From the exception it looks like something in the CLASSPATH is missing,
but what?? those CORBA classes should come by default with java, so
i shouldn't include anything in the CLASSPATH.

can anyone help me?

thanx in advance and regards
	marco






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