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java.lang.NoClassDefFoundError: javax/xml/stream/XMLStreamException ... AbstractType in xmlbeans

Hello experts,

   I am running an example from apache site, but wouldn't work ... could anyone please give me some help ? thanks.
  The original example is at:
  This example is regarding the AbstractType of xml beans ... does anyone ever deal with this ? Please HELP !!!
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/stream/XMLStreamException
      at java.lang.Class.getDeclaredMethods0(Native Method)
      at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
      at java.lang.Class.getMethod0(Unknown Source)
      at java.lang.Class.getMethod(Unknown Source)
      at org.apache.xmlbeans.XmlBeans.buildMethod(XmlBeans.java:174)
      at org.apache.xmlbeans.XmlBeans.buildNodeMethod(XmlBeans.java:195)
      at org.apache.xmlbeans.XmlBeans.buildNodeToCursorMethod(XmlBeans.java:232)
      at org.apache.xmlbeans.XmlBeans.<clinit>(XmlBeans.java:131)
      at abstractFigures.RootDocument$Factory.newInstance(Unknown Source)
      at org.apache.xmlbeans.samples.abstracttypes.AbstractTypes.buildDocument(AbstractTypes.java:37)
      at org.apache.xmlbeans.samples.abstracttypes.AbstractTypes.main(AbstractTypes.java:29)
   and the main java looks like:

  /*   Copyright 2004 The Apache Software Foundation
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *       http://www.apache.org/licenses/LICENSE-2.0
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *  limitations under the License.
package org.apache.xmlbeans.samples.abstracttypes;

import abstractFigures.*;
import figures.*;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;

 * Test class that builds a document using type substitution
public class AbstractTypes
    public static void main(String[] args)

    public static XmlObject buildDocument(boolean enableOutput)
        XmlOptions opt = (new XmlOptions()).setSavePrettyPrint();

        // Build a new document
        RootDocument doc = RootDocument.Factory.newInstance();
        RootDocument.Root figures = doc.addNewRoot();
        if (enableOutput)
            System.out.println("Empty document:\n" + doc.xmlText(opt) + "\n");

        // Add abstract figures
        Shape s1 = figures.addNewFigure();
        Shape s2 = figures.addNewFigure();
        // Document contains two shapes now
        // Because the shape is abstract, the document will not yet be valid
        if (enableOutput)
            System.out.println("Document containing the abstract types:\n" + doc.xmlText(opt));
            System.out.println("Valid = " + doc.validate() + "\n");

        // Change the abstract figures to concrete ones
        Circle circle = (Circle) s1.changeType(Circle.type);
        Square square = (Square) s2.changeType(Square.type);
        // Document contains two concrete shapes and is valid
        if (enableOutput)
            System.out.println("Final document:\n" + doc.xmlText(opt));
            System.out.println("Vald = " + doc.validate());
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1 Solution
have you added xmlbeans related jar file to your classpath ?
meow00Author Commented:
yes ! I did! I use xbean-2.1.0.jar
please remove it from classpath and tell me the result
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meow00Author Commented:
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;

I am in eclipse ... if I remove xbean-2.1.0.jar
It complains the above things (and some other more) can not be resolved!

this error is due to a name confliction
two (or more) classes have the same name, in your classpath
you should remove some paths to resolve it

If you are interested , you can test this little demo

// A.java

class A {
      public static void main(String[] args) throws Exception {
            Integer a;

class Integer {
      int a;

// complie it

javac A.java

// make a jar file containing Integer.class

jar -cf a.jar Integer.class

// run demo

java -cp a.jar A

// you will encounter

Exception in thread "main" java.lang.NoClassDefFoundError: A
really sorry, my demo was a pitfall, :-)
ignore my last two comments
meow00Author Commented:
mmm ... so maybe I created the jar file in a wrong way ?!?

I did it as follows:

[meow@cat abstracttypes]$ls
abstractBase.xsd   AbstractTypes.java      myfigures.jar  xbean.jar
AbstractTypes.jar  AbstractTypesTest.java  myfigures.xsd

[meow@cat abstracttypes]$ scomp -out AbstractTypes.jar abstractBase.xsd
Time to build schema type system: 1.074 seconds
Time to generate code: 0.073 seconds
Time to compile code: 1.15 seconds
Compiled types to: AbstractTypes.jar

[meow@cat abstracttypes]$ scomp -out myfigures.jar myfigures.xsd abstractBase.xsd
Time to build schema type system: 0.854 seconds
Time to generate code: 0.085 seconds
Time to compile code: 1.203 seconds
Compiled types to: myfigures.jar

 maybe I did " scomp -out myfigures.jar myfigures.xsd abstractBase.xsd" wrong ?!?

 the instruction was:
Step1. Create the schema file "abstractBase.xsd" and compile it
to abstractbase.jar.
Step2. Create a Schema that implements the abstract types defined in
"abstractBase.xsd", and compile it with "abstractbase.jar" on the classpath.
Step3. Use the jars created in steps 1 and 2 to create an instance document
using the concrete types.
  Maybe I did something wrong here while creating the jar ??? please help! thanks.

meow00Author Commented:
thanks for the help. problem solved. I need to add xmlpublic.jar and jsr173_1.0_api.jar

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