Ant Build error using XML beans

["Butt, Ian" <ib...@metasolv.com>]

> I am getting the error below every time I try and compile my XML schema into XML beans.  This error only arises after the initial build is done and I make modifications to my XML schema.  I have cleaned up my classes, beansrc directories but still get this error.  If I copy my schema over to another directory this problem goes away, i.e. make a copy in a different directory and modify my build script to look there instead.  I am completely stumped why it works the first time and every time after I make additional changes it doesn't.  
> 
> Thanks
> 
> Ian
> 
> 
> /vobs/OSA/tornado/java/guibuild.xml:46: org.apache.xmlbeans.impl.jam.internal.ja
> vadoc.JavadocClassloadingException: An error has occurred while invoking javadoc
>  to inspect your source
> files.  This may be due to the fact that $JAVA_HOME/lib/tools.jar does
> not seem to be in your system classloader.  One common case in which
> this happens is when using the 'ant' tool, which uses a special
> context classloader to load classes from tools.jar.
> 
> This situation elicits what is believed to a javadoc bug in the initial
> release of JDK 1.5.  Javadoc attempts to use its own context classloader
> tools.jar but ignores one that may have already been set, which leads
> to some classes being loaded into two different classloaders.  The
> telltale sign of this problem is a javadoc error message saying that
> 'languageVersion() must return LanguageVersion - you might see this
> message in your process' output.
> 
> This will hopefully be fixed in a later release of JDK 1.5; if a new
> version of 1.5 has become available, you might be able to solve this
> by simply upgrading to the latest JDK.
> 
> Alternatively, you can work around it by simply including
> $JAVA_HOME/lib/tools.jar in the java -classpath
> parameter.  If you are running ant, you will need to modify the standard
> ant script to include tools.jar in the -classpath.
> 
> Here's the build script:
> 
> 
> <project name="build" default="all" basedir=".">
> 	<!-- set global properties for this build -->
> 	<property environment="env"/>
> 	<property name="build.compiler" value="modern"/>
> 	<property name="src" value="src"/>
> 	<property name="output" value="."/>
> 	<property name="dest" value="${output}/classes"/>
> 	<property name="lib" value="${output}/lib"/>
> 	<property name="srcbase" value="${env.VOB}/src/com"/>
> 	<property name="package" value="${output}/package"/>
> 	<property name="staging" value="${package}/STAGING"/>
> 	<property name="debug" value="true"/>
> 	<property name="dynamicgui" value="${srcbase}/dynamicgui"/>
> 	<property name="xmlbeans.lib" value="${env.COTSVOB}/java/xmlbeans/xmlbeans-2.0.0/lib"/>
> 	<property name="xmlbeansjar" value="${xmlbeans.lib}//xbean.jar"/>
> 	<property name="xmlbeanspath" value="${xmlbeans.lib}/xbean_xpath.jar"/>
> 	<property name="xmlbeansjsr173" value="${xmlbeans.lib}/jsr173_api.jar"/>
> 	<property name="beansrc" value="${output}/beansrc"/>
> 	<mkdir dir="${dest}"/>
> 	<mkdir dir="${lib}"/>
> 	<path id="javac.classpath">
> 		<pathelement location="${dest}"/>
> 		<pathelement location="${xmlbeansjar}"/>
> 		<pathelement location="${xmlbeanspath}"/>
> 		<pathelement location="${xmlbeansjsr173}"/>
> 	</path>
> 	<path id="xmlbeans.path">
> 		<fileset dir="${xmlbeans.lib}" includes="*.jar"/>
> 	</path>
> 	<taskdef name="xmlbean" classname="org.apache.xmlbeans.impl.tool.XMLBean" classpathref="xmlbeans.path"/>
> 	<target name="all" depends="dynamicgui" description="compile all"/>
> 	<target name="dynamicguiCheck" description="check if xsd files changed since service model extensions last built">
> 		<dependset>
> 			<srcfileset dir="${dynamicgui}" includes="*.xsd"/>		
> 			<targetfileset file="${lib}/dynamicgui.jar"/>
> 		</dependset>
> 		<available file="${lib}/dynamicgui.jar" property="dynamicguiUpToDate"/>
> 	</target>
> 	<target name="dynamicgui" depends="dynamicguiCheck> " unless="dynamicguiUpToDate">
> 		<xmlbean download="false" schema="${dynamicgui}" srcgendir="${beansrc}/dynamicgui" destfile="${lib}/dynamicgui.jar" classpathref="xmlbeans.path"/>
> 	</target>
> 	<target name="clean">
> 		<delete>
> 			<fileset dir="${dest}" includes="**/*.class"/>
> 		</delete>
> 		<delete dir="${beansrc}"/>
> 	</target>
> </project>
> 
>  

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