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From Dennis Putnam <d...@bellsouth.net>
Subject Re: AW: Javac Run By Ant Script is Unable to Find External Jars
Date Mon, 25 Feb 2019 12:09:16 GMT
My apologies again but I have not made any progress on this problem. Is
there perhaps a better forum I should be using at this point? I did make
one discovery. It appears that although the application works in Eclipse
when I try to export it to a runnable jar using the Eclipse wizard, the
resulting jar fails as well. It seems to me that the problem is not ant
specific but something in the app build per se.

On 2/21/2019 10:18 AM, Dennis Putnam wrote:
> I found an article on adding Maven dependencies to my ant script.
> While I'm getting a successful build but the same exception when I run
> the jar, I hope this is getting me closer. At least the pom.xml is in
> the build. I am wondering if the added *fileset* is right and working.
> Here is my latest:
>
>     <?xml version="1.0" encoding="UTF-8"?>
>     <project name="KCBSEvents" default="jar" basedir="."
>     *xmlns:artifact="antlib:org.apache.maven.artifact.ant"*>
>             <property name="build.properties" value="build.properties"/>
>             <property name="resources" value="resource" />
>             <property name="jardir" value="KCBSEvents" />
>             <property name="KCBSDir" value="src/KCBSEvents" />
>             <property name="member.number" value="000000" />
>             <property name="member.name" value="" />
>             <property name="jarpath"
>     value="/${user.home}/.m2/repository" />
>            *<path id="maven-ant-tasks.classpath"
>     path="/lib/jvm-exports/maven-ant-tasks-2.1.3.jar" />**
>     **        <typedef
>     resource="org/apache/maven/artifact/ant/antlib.xml"
>     uri="antlib:org.apache.maven.artifact.ant"
>     classpathref="maven-ant-tasks.classpath" />**
>     **        <artifact:pom id="pomfile" file="pom.xml" />**
>     **        <artifact:dependencies filesetId="mvn-dependencies"
>     pomRefId="pomfile" />*
>             <path id="compile-jars">
>                     <multirootfileset
>     basedirs="${jarpath}/commons-io/2.5,${jarpath}/httpcomponents-client,${jarpath}/commons-logging/1.2,${jarpath}/commons-codec/1.10,/lib/java-ext/json-simple-1.1.1">
>                             <include name="commons-io-2.5.jar"
/>
>                             <include name="httpclient-4.5.6.jar"
/>
>                             <include name="httpcore-4.4.10.jar"
/>
>                             <include name="commons-logging-1.2.jar"
/>
>                             <include name="commons-codec-1.10.jar"
/>
>                             <include name="json-simple-1.1.1.jar"
/>
>                     </multirootfileset>
>                     *<fileset refid="mvn-dependencies" />*
>             </path>
>             <target name="checkOS">
>                     <condition property="isWindows">
>                             <os family="windows" />
>                     </condition>
>                     <condition property="isLinux">
>                             <os family="unix" />
>                     </condition>
>             </target>
>             <target name="if_windows" depends="checkOS" if="isWindows">
>                     <property name="jarfile"
>     value="C:\temp\KCBSEvents.jar" />
>                     <property name="antcontrib"
>     value="H:\html\Applets\ant-contrib" />
>             </target>
>             <target name="if_linux" depends="checkOS" if="isLinux">
>                     <property name="jarfile"
>     value="/tmp/${member.number}/KCBSEvents.jar" />
>                     <property name="antcontrib"
>     value="/var/www/html/Applets/ant-contrib/ant-contrib-1.0b3.jar" />
>             </target>
>             <target name="setclass" depends="if_linux,if_windows">
>                     <taskdef
>     resource="net/sf/antcontrib/antcontrib.properties">
>                             <classpath>
>                                     <pathelement
>     location="${antcontrib}" />
>                             </classpath>
>                     </taskdef>
>      </target>
>             <target name="incserial" depends="setclass">
>                     <copy todir="bin/${jardir}/${resources}">
>                             <fileset dir="${KCBSDir}/${resources}">
>                                     <include name="${build.properties}"
/>
>                             </fileset>
>                             <filterchain>
>                                     <expandproperties
/>
>                             </filterchain>
>                     </copy>
>                     <if> <isset Property="build.number" />
<then>
>                             <echo message="update build requested"
/>
>                     </then> <else>
>                             <echo message="new build requested"
/>
>                             <buildnumber />
>                     </else> </if>
>                     <propertyfile
>     file="bin/${jardir}/${resources}/${build.properties}">
>                             <entry key="serialnumber"
>     value="${build.number}" />
>                             <entry key="membernumber"
>     value="${member.number}" />
>                             <entry key="name" value="${member.name}"
/>
>                     </propertyfile>
>                     <echo message="serial number: ${build.number}"
/>
>             </target>
>             <target name="jar" description="Compile serialized jar"
>     depends="incserial,if_windows,if_linux">
>                     <echo message="Using destination file ${jarfile}"
/>
>                     <javac srcdir="src" destdir="bin"
>     includeantruntime="false" classpathref="compile-jars" />
>                     <jar destfile="${jarfile}" basedir="bin"
>     filesetmanifest="mergewithoutmain">
>                             <manifest>
>                                     <attribute name="Manifest-Version"
>     value="1.0"/>
>                                     <attribute name="Created-By"
>     value="ant 1.9.2 on CentOS 7" />
>                                     <attribute name="Main-Class"
>     value="KCBSEvents.KCBSEvents" />
>                             </manifest>
>                     </jar>
>             </target>
>     </project>
>
>
> On 2/20/2019 3:22 PM, Jan Matèrne (jhm) wrote:
>> If you have created your JAR the first step is done.
>>
>> Starting the JAR could be done in several ways. Common is that you have to have all
external classes on the runtime classpath:
>>
>>  
>>
>> 1. Hard coded start script.
>>
>> Write a bash/bat-Script with the java command with all cp settings, e.g. (bat)
>>
>> @echo off
>>
>> java -cp /build/myjar.jar;lib/one.jar;lib/two.jar;lib/three.jar org.acme.Main %*
>>
>>  
>>
>> 2. Wrapper script which collects all JARs in a dynamic way (see ant.bat|ant.sh)
>>
>>  
>>
>> 3. Use Ant + <java><classpath> for starting
>>
>>  
>>
>> 4. Create a runnable JAR which references the external JARs (manifest: main-class
+ classpath)
>>
>>  
>>
>> 5. Create a shaded jar (uber jar, fat jar): include all classes from external jars
into your jar
>>
>>  
>>
>> 6. Use a launcher which uses a dependency manager for getting the classpath
>>
>>  
>>
>>  
>>
>>  
>>
>> You don't have to replicate path definitions in your buildfile, you could (and should)
use references:
>>
>> <javac><classpath id="runtime.cp"><fileset dir="lib" includes="**/*.jar"/>…
>>
>> <java><classpath refid="runtime.cp"/>
>>
>>  
>>
>>  
>>
>> You mave have a look at http://ant.apache.org/manual/tutorial-HelloWorldWithAnt.html
>>
>>  
>>
>>  
>>
>> Jan
>>
>>  
>>
>

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