ANT build.xml file

Question

My build.xml must have problems, because the jar size is way smaller than the JBuilder equivalent. I think it is not including the 3rd party Jars that I want it to include.
Additionally, it builds, but when I execute it I get strange errors indicating it can't find certain system classfiles.
Here is the build file:
<project name="JAutoTest" default="dist" basedir=".">
<!-- set global properties for this build -->
<property name="src" value="src"/>
<property name="build" value="build"/>
<property name="test" value="jAutoTool"/>
<property name="dist" value="dist"/>
<property name="doc" value="doc"/>
<property name="Name" value="JAutoTest"/>
<property name="packages" value="jAutoTool.*"/>
<path id="project.class.path">
<pathelement location="lib/"/>
<pathelement location="jAutoTool/"/>
<pathelement path="${java.class.path}/"/>
</path>
<target name="check_for_optional_packages">
<available property="java.reflection" classname="java.lang.reflect"/>
</target>
<target name="prepare">
<!-- Create the time stamp -->
<tstamp/>
<!-- Create the build directory structure used by compile -->
<mkdir dir="${build}"/>
<mkdir dir="${test}"/>
<mkdir dir="${doc}"/>
</target>
<target name="compile" depends="prepare,check_for_optional_packages">
<!-- Compile the java code from ${src} into ${build} -->
<javac srcdir="${src}" destdir="${build}" debug="on" deprecation="off" optimize="on">
<classpath refid="project.class.path"/>
</javac>
</target>
<target name="genDoc" depends="compile">
<javadoc packagenames="${packages}" sourcepath="${basedir}/${src}" destdir="${doc}" author="true" version="true" windowtitle="${Name} API" doctitle="${Name}" bottom="Copyright � 2001 Motorola, Inc. All Rights Reserved."/>
</target>
<target name="dist" depends="compile">
<!-- Create the ${dist}/lib directory -->
<mkdir dir="${dist}/lib"/>
<!-- Put everything in ${build} into the JAutoTest-${DSTAMP}.jar file -->
<jar jarfile="${dist}/lib/JAutoTest-${DSTAMP}.jar" basedir="${build}"
          manifest="${dist}/META-INF/MANIFEST.MF">
          <zipgroupfileset dir="lib" includes="*.jar"/>
     </jar>
</target>
<target name="clean">
<!-- Delete the ${build} and ${dist} directory trees -->
<delete dir="${build}"/>
<delete dir="${dist}"/>
</target>
</project>
I have the other jars at /lib.
The error I am getting is:
D:\testjTool\dist\lib>java -jar *.jar
Uncaught error fetching image:
java.lang.NullPointerException
at sun.awt.image.URLImageSource.getConnection(URLImageSource.java:102)
at sun.awt.image.URLImageSource.getDecoder(URLImageSource.java:111)
at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.j
ava:251)
at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:217)
at sun.awt.image.ImageFetcher.run(ImageFetcher.java:185)
Thanks.

Answer 1

The error I am getting is:
D:\testjTool\dist\lib>java -jar *.jar
Uncaught error fetching image:
java.lang.NullPointerException
at sun.awt.image.URLImageSource.getConnection(URLImageSource.java:102)
at sun.awt.image.URLImageSource.getDecoder(URLImageSource.java:111)
at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.j
ava:251)
at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:217)
at sun.awt.image.ImageFetcher.run(ImageFetcher.java:185)
Classpath is:
D:\testjTool>set CLASSPATH=\testjTool\build;c:\JBuilder4\lib\HTTPClient.jar;c:\J
Builder4\lib\htmlparser.jar;c:\JBuilder4\lib\classes12;c:\JBuilder4\lib\classes12\javax.jar;c:\JBuilder4\lib\dbswing.jar;c:\JBuilder4\lib\jbcl.jar;.;
The ant build works, but the executable is 1/2 the size of the
JBuilder one.