Problem running *.jar file java.lang.NoClassDefFoundError

What is the output of jar -tf B2BServer.jar?

do you have the declaration:
package com.wbk;
at the top of your B2BServerApplication.java file?

if you have jar your classes correctly, then i can say that it is the class path for that jar is not setted correctly.

For example, B2BServer.jar resides in D:\jar
then you need to set your D:\jar in the classpath. Otherwise it cannot find the class and will give you NoClassDefFoundError

> For example, B2BServer.jar resides in D:\jar
> then you need to set your D:\jar in the classpath.

That will NOT pick up B2BServer.jar.
jar's must be explicitly included in your classpath, or simply placed in your ext directory where they will get automatically included.

Sounds like you haven't included your files in your jar correctly.

To Objects:

i supposed you are referring to weblogic server when you mention "ext directory".

It seems to be a bug, whereby it doesn't automatically include the jars.

What's weblogic got 2 do with it??

(Since 1.2) Any jar file placed into the ext folder located inside your jre installation will be included in your classpath.

But I don't think the problem is with the command line, or classpath. The problem appears to be with the construction of the jar file.

hi,
to stimpyjcat :
I build the the jar file with the following ant-script
<?xml version="1.0" encoding="UTF-8"?>
<project basedir="." default="dist" name="B2BServer">

  <!-- set global properties for this build -->
  <property name="src" value="src"/>
  <property name="build" value="build"/>
  <property name="dist" value="dist"/>


  <target name="init">
    <!-- Create the time stamp -->
    <tstamp/>
    <!-- Create the build directory structure used by compile -->
    <mkdir dir="${build}"/>
  </target>


  <target depends="init" name="compile">
    <!-- Compile the java code from ${src} into ${build} -->
     <javac destdir="${build}" srcdir="${src}">
        <classpath>
          <pathelement path="${classpath}"/>
          <fileset dir="./lib">
            <include name="**/*.jar"/>
            <include name="**/*.class"/>
          </fileset>
          <pathelement location="./build"/>
        </classpath>
    </javac>
  </target>

  <target depends="compile" name="dist">
    <!-- Create the distribution directory -->
    <mkdir dir="${dist}/lib"/>
    <mkdir dir="${build}/META-INF"/>

    <!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file -->
    <jar basedir="${build}" jarfile="${dist}/lib/B2BServer-${DSTAMP}.jar" manifest="./manifest/MANIFEST.MF"/>
    <copy file="${dist}/lib/B2BServer-${DSTAMP}.jar" tofile="./B2BServer.jar"/>
    <!-- Delete the ${build} and ${dist} directory trees -->
  </target>
  <target depends="dist" name="clean">
    <delete dir="${build}"/>
    <delete dir="${dist}"/>
  </target>

</project>

to black: yes, I can run the application without any problem, if the *.class files are not packed in a *.jar file

that was the answer, now it works

a tool named JavaJar
can compress and decompress war, ear and jar....

may download from http://www.qwerks.com/download/4114/JavaJar.zip

the tool is very good tool.
but the homepage(www.pivotonic.com) of JavaJar cannot be  accessed.

it is funny.