Re: AW: AW: Javac Run By Ant Script is Unable to Find External Jars
Dennis Putnam <[email protected]>
| Newsgroups | gmane.comp.jakarta.ant.user |
|---|---|
| Message-ID | <[email protected]> |
Hi Jan,
I need to take a timeout. In my machinations I've created a new problem
that seems unrelated to ant. I'm trying to resolve that via the Eclipse
forum. I don't know if this new problem is masking the original one or
if it is related. I'll have to get back to you when I know which.
On 2/25/2019 9:15 AM, Jan Matèrne (jhm) wrote:
> A little sample:
> * src\java\org\apache\ant\Application.java
> Sample application which uses Log4J2 as external dependency
> * src\resources\log4j2.xml
> Configuration file for Log4J2
> * build.xml
> Ant buildscript
>
> Run the script with "ant".
> Then start the application with "java -jar lib\Application.jar".
> The app will prompt all given arguments via Log4J2-Logger.
>
> Have a look at the "build" target and the resulting manifest inside the jar.
>
>
> Jan
>
>
> Application.java
> ----8-<------8-<------8-<------8-<------8-<--
> package org.apache.ant;
>
> import java.util.stream.Stream;
> import org.apache.logging.log4j.LogManager;
> import org.apache.logging.log4j.Logger;
>
>
> public class Application {
>
> public static void main(String[] args) {
> Logger logger = LogManager.getLogger(Application.class);
> if (args.length == 0) {
> logger.info("Application started without any argument.");
> } else {
> logger.info("Application started with %d arguments:%n", args.length);
> Stream.of(args)
> .map( s -> "- '"+s+"'" )
> .forEach(logger::info);
> }
> }
>
> }
> ----8-<------8-<------8-<------8-<------8-<--
>
>
> log4j2.xml
> ----8-<------8-<------8-<------8-<------8-<--
> <?xml version="1.0" encoding="UTF-8"?>
> <Configuration status="WARN">
> <Appenders>
> <Console name="Console" target="SYSTEM_OUT">
> <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
> </Console>
> </Appenders>
> <Loggers>
> <Root level="debug">
> <AppenderRef ref="Console"/>
> </Root>
> </Loggers>
> </Configuration>
> ----8-<------8-<------8-<------8-<------8-<--
>
>
> build.xml
> ----8-<------8-<------8-<------8-<------8-<--
> <project name="Application" default="build">
>
> <property name="build.dir" value="build"/>
> <property name="src.dir" value="src"/>
> <property name="lib.dir" value="lib"/>
> <property name="main.class" value="org.apache.ant.Application"/>
>
> <property name="classes.dir" value="${build.dir}/classes"/>
> <property name="java.src" value="${src.dir}/java"/>
> <property name="resources.src" value="${src.dir}/resources"/>
>
>
> <target name="clean">
> <delete dir="${build.dir}"/>
> </target>
>
> <target name="download-dependencies">
> <mkdir dir="${lib.dir}"/>
> <!-- Performance improvement: don't download multiple times -->
> <!-- TODO: available+get as macro -->
> <available property="log4j-core.present" file="${lib.dir}/log4j-core-2.11.2.jar"/>
> <get xmlns:unless="ant:unless"
> unless:set="log4j-core.present"
> src="https://search.maven.org/remotecontent?filepath=org/apache/logging/log4j/log4j-core/2.11.2/log4j-core-2.11.2.jar"
> dest="${lib.dir}/log4j-core-2.11.2.jar" />
> <available property="log4j-api.present" file="${lib.dir}/log4j-api-2.11.2.jar"/>
> <get xmlns:unless="ant:unless"
> unless:set="log4j-api.present"
> src="https://search.maven.org/remotecontent?filepath=org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar"
> dest="${lib.dir}/log4j-api-2.11.2.jar" />
> </target>
>
> <target name="compile" depends="download-dependencies">
> <mkdir dir="${classes.dir}"/>
> <javac srcdir="${src.dir}" destdir="${classes.dir}" includeantruntime="false">
> <classpath id="cp.runtime">
> <fileset dir="${lib.dir}" includes="**/*.jar"/>
> </classpath>
> </javac>
> </target>
>
> <target name="build" depends="compile">
> <manifestclasspath property="jar.classpath"
> jarfile="${build.dir}/${ant.project.name}.jar">
> <classpath refid="cp.runtime"/>
> </manifestclasspath>
> <jar destfile="${build.dir}/${ant.project.name}.jar">
> <fileset dir="${classes.dir}"/>
> <fileset dir="${resources.src}"/>
> <manifest>
> <attribute name="Main-Class" value="${main.class}"/>
> <attribute name="Class-Path" value="${jar.classpath}"/>
> </manifest>
> </jar>
> </target>
>
> </project>
> ----8-<------8-<------8-<------8-<------8-<--
>
>
>> -----Ursprüngliche Nachricht-----
>> Von: Jan Matèrne (jhm) [mailto:[email protected]]
>> Gesendet: Montag, 25. Februar 2019 14:08
>> An: 'Ant Users List'
>> Betreff: AW: AW: Javac Run By Ant Script is Unable to Find External
>> Jars
>>
>> Could you post the content of the manifest file and your directory
>> structure?
>>
>> I suppose that the paths are not correct …
>>
>>
>>
>> Jan
>>
>>
>>
>> Von: Dennis Putnam [mailto:[email protected]]
>> Gesendet: Montag, 25. Februar 2019 13:09
>> An: [email protected]
>> Betreff: Re: AW: Javac Run By Ant Script is Unable to Find External
>> Jars
>>
>>
>>
>> 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
>>
>>
>>
>>
>>
>>
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
>
signature.asc
(application/pgp-signature, 196 B)
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) iEYEARECAAYFAlx0F0MACgkQ/fiWYqZ2tVSm2QCg5zYksnx/5DB9OBtGJKWh3r6A ZboAn22QQnZA9jR+HdX5Nkmw7SkWPBNi =DLfu -----END PGP SIGNATURE-----