ANT Generated jar: is it a namespace issue? - ant

I have a Eclipse-Java-Project with an ANT-build-file. This build file exports a jar of the project without compiling it. So I only export the sources.
<target name="jar">
<mkdir dir="/jar"/>
<jar destfile="/jar/my_test_jarfile.jar" basedir="/src" />
</target>
I use this generated jar in another eclipse java project and set the path to the jar in the build-path-settings of the project. The problem is that eclipse says it cannot resolve the namespace of the imported classes of the jar.
If I export the jar manually by right clicking on the project and then "Export" and putting the jar to the build path of the other project, everything works fine and there are no errors. So the question is now, what am I doing wrong?

So here is my solution. It seems that you have to compile the source first and then pack it into a jar. I don't give a guarantee that this jar is exactly the same like the one you get from eclipse when you do the right click thing and export etc.
But it works for me, there are no namespace errors any longer. so here is a minimum version of my ant targets:
<project default="run" basedir=".">
<property name="src.dir" value="src" />
<property name="classes.dir" value="bin" />
<property name="build.dir" value="build" />
<path id="libs">
<fileset dir="lib">
<include name="*.jar"/>
</fileset>
<pathelement path="${basedir}\${classes.dir}"/>
</path>
<target name="run">
<antcall target="compile"/>
<antcall target="jar"/>
</target>
<target name="compile">
<javac debug="true" srcdir="${src.dir}" destdir="${classes.dir}" classpathref="libs" encoding="UTF-8" />
</target>
<target name="jar">
<jar destfile="${build.dir}/my_jar_file.jar" basedir="${classes.dir}">
</target>
</project>

Related

deleting object tree with ant using java language

When I do "make clean" it deletes all the object files , in C distributions.
What would be the command "make clean" when using ant, in Java distributions?
Java based build tools generaly build everything in target directory. ANT builds typically have a "clean" target that works as follows:
<target name="clean" description="Cleanup build files">
<delete dir="${build.dir}"/>
</target>
My advice is not to fight this one :-) It might look dumb but it's how more advanced tools like Maven work by default.
Example
I would typically declare some standard properties at the top of my build file:
<property name="src.dir" location="src/main/java"/>
<property name="build.dir" location="build"/>
<property name="dist.dir" location="${build.dir}/dist"/>
<property name="jar.main.class" value="org.demo.App"/>
<property name="jar.file" value="${dist.dir}/${ant.project.name}.jar"/>
Which are used to build my jar as follows:
<target name="compile" description="Compile code">
<mkdir dir="${build.dir}/classes"/>
<javac srcdir="${src.dir}" destdir="${build.dir}/classes" includeantruntime="false" debug="true" classpathref="compile.path"/>
</target>
<target name="build" depends="compile" description="Create executable jar archive">
<jar destfile="${jar.file}" basedir="${build.dir}/classes">
<manifest>
<attribute name="Main-Class" value="${jar.main.class}" />
</manifest>
</jar>
</target>
If you look carefully you'll notice everything ANT does is created under the "build" subdirectory.

Continuous Integration - Jenkins not invoking WedDriver test

I'm trying to use jenkins to run selenium webdriver test (continuous integration) but so far I've had no success at all. My setup:
- eclipse
- testng
- ant (build.xml files)
- jenkins
- everything is hosted locally
I'm running my test in parallel (1 test, 3 browsers) and this works fine if I run the testng file, if I run the ant file (build.xml) it says 'build successful' but nothing happens if also run this same file in jenkins it says the same thing 'build successful' but again nothing happens. From this I can deduce that jenkins is running the correct file but its just not executing the test. I've even tried to use maven but I don't understand it so the code doesn't even compile when I take this route.
Can someone help me and point me in the right direction because I believe I'm missing something. I've included a photo of my jenkins set and below is a copy of my ant file:
![<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- WARNING: Eclipse auto-generated file.
Any modifications will be overwritten.
To include a user specific buildfile here, simply create one in the same
directory with the processing instruction <?eclipse.ant.import?>
as the first entry and export the buildfile again. --><project basedir="." default="build" name="jenkins_run_selenium">
<property environment="env"/>
<property name="ECLIPSE_HOME" value="../../../Program Files (x86)/eclipse-standard-kepler-R-win32-x86_64/Eclipse"/>
<property name="junit.output.dir" value="junit"/>
<property name="debuglevel" value="source,lines,vars"/>
<property name="target" value="1.7"/>
<property name="source" value="1.7"/>
<path id="jenkins_run_selenium.classpath">
<pathelement location="bin"/>
<pathelement location="../../../Program Files (x86)/Eclipse/selenium-2.40.0/selenium-java-2.40.0-srcs.jar"/>
<pathelement location="../../../Program Files (x86)/Eclipse/selenium-2.40.0/selenium-server-standalone-2.40.0.jar"/>
<pathelement location="../Desktop/Jar Files and Sources/testng-6.8.5-javadoc.jar"/>
<pathelement location="../Desktop/Jar Files and Sources/testng-6.8.jar"/>
</path>
<target name="init">
<mkdir dir="bin"/>
<copy includeemptydirs="false" todir="bin">
<fileset dir="src">
<exclude name="**/*.launch"/>
<exclude name="**/*.java"/>
</fileset>
</copy>
</target>
<target name="clean">
<delete dir="bin"/>
</target>
<target depends="clean" name="cleanall"/>
<target depends="build-subprojects,build-project" name="build"/>
<target name="build-subprojects"/>
<target depends="init" name="build-project">
<echo message="${ant.project.name}: ${ant.file}"/>
<javac debug="true" debuglevel="${debuglevel}" destdir="bin" includeantruntime="false" source="${source}" target="${target}">
<src path="src"/>
<classpath refid="jenkins_run_selenium.classpath"/>
</javac>
</target>
<target description="Build all projects which reference this project. Useful to propagate changes." name="build-refprojects"/>
<target description="copy Eclipse compiler jars to ant lib directory" name="init-eclipse-compiler">
<copy todir="${ant.library.dir}">
<fileset dir="${ECLIPSE_HOME}/plugins" includes="org.eclipse.jdt.core_*.jar"/>
</copy>
<unzip dest="${ant.library.dir}">
<patternset includes="jdtCompilerAdapter.jar"/>
<fileset dir="${ECLIPSE_HOME}/plugins" includes="org.eclipse.jdt.core_*.jar"/>
</unzip>
</target>
<target description="compile project with Eclipse compiler" name="build-eclipse-compiler">
<property name="build.compiler" value="org.eclipse.jdt.core.JDTCompilerAdapter"/>
<antcall target="build"/>
</target>
<target name="jenkins_run_selenium">
<mkdir dir="${junit.output.dir}"/>
<junit fork="yes" printsummary="withOutAndErr">
<formatter type="xml"/>
<classpath refid="jenkins_run_selenium.classpath"/>
</junit>
</target>
<target name="junitreport">
<junitreport todir="${junit.output.dir}">
<fileset dir="${junit.output.dir}">
<include name="TEST-*.xml"/>
</fileset>
<report format="frames" todir="${junit.output.dir}"/>
</junitreport>
</target>
</project>][1]
I can explain you the way I have done it in jenkins, maven and code. It should be pretty much similar with ant. This should certainly make jenkins fire your tests.
In code:
Create test suite class like below
#RunWith(Suite.class)
#Suite.SuiteClasses
({
Test1.class,
Test2.class
})
public class UnitTestSuite{}
In maven: use maven-surefire-plugin in pom.xml as below:
<!-- TEST -->
<plugin>
<!-- Runs the unit tests. -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.version}</version>
<configuration>
<includes>
<include>**/UnitTestSuite.java</include>
</includes>
</configuration>
</plugin>
and finally in jenkins build section set goals as
clean install -e -Dmaven.test.failure.ignore=false
Try modifying your ant file by adding in target "jenkins_run_selenium" as below:
<target name="jenkins_run_selenium">
<mkdir dir="${junit.output.dir}"/>
<junit fork="yes" printsummary="withOutAndErr">
<formatter type="xml"/>
<test name="tests.MyUnitTests" todir="${junit.output.dir}"/>
<classpath refid="jenkins_run_selenium.classpath"/>
</junit>
</target>
Refer https://stackoverflow.com/a/4760714/1712272 if you want to run all tests in batch

Ant script fails to detect the javafx classes when compiling

I am using the Ant script to compile my source code. previously it was compiling perfectly . recently i added classes which uses javafx specific classes .after this ant is not compiling and it fails to find the javafx classes . i am using jdk 7 update 23 as javafx is inculded in the jdk, i cannot figure out why compilation fails ?.
below is my ant script.
<?xml version="1.0" encoding="UTF-8" ?>
<project name="client" basedir="." default="compile" >
<description>Client</description>
<property file="build.properties" />
<path id="classpath">
<fileset dir="${lib.dir}" includes="*.*"/>
</path>
<!-- Initialization -->
<target name="init" description="Prepare needed directories.">
<mkdir dir="${build.dir}" />
<mkdir dir="${classes.dir}" />
<mkdir dir="${jar.dir}" />
<mkdir dir="${dist.dir}" />
</target>
<!-- Cleanup -->
<target name="clean" description="Remove all files created by the build/test process.">
<delete dir="${classes.dir}" />
<delete dir="${dist.dir}" />
<delete dir="${build.dir}" />
</target>
<!-- Compile application -->
<target name="compile" depends="init" >
<mkdir dir="${classes.dir}"/>
<javac source="1.7" target="1.7" srcdir="${src.dir}" destdir="${classes.dir}" debug="yes" includeantruntime="false" fork="true" memorymaximumsize="1200m" >
<classpath refid="classpath" />
</javac>
</target>
<path id="lib.lib">
<fileset dir="../lib">
<include name="**/*"/>
</fileset>
</path>
<pathconvert property="mf.classpath" pathsep=" lib/">
<path refid="lib.lib"/>
<flattenmapper/>
</pathconvert>
<!-- Java Archive -->
<target name="jar" depends="compile">
<mkdir dir="${jar.dir}"/>
<jar destfile="${jar.dir}/Client.jar" basedir="${classes.dir}">
<manifest>
<attribute name="Class-Path" value="lib/${mf.classpath}"/>
<attribute name="Main-Class" value="${main.class}"/>
</manifest>
</jar>
</target>
</project>
Suggested Solution
If you want to use ant with JavaFX, you should use Oracle's JavaFX ant tasks.
The JavaFX runtime is included with Java 7 and the Oracle JavaFX ant tasks are aware of it's location, so when you use the Oracle ant tasks, builds of projects referencing JavaFX work.
Why your current build fails
Compilation fails for your script because the JavaFX runtime (jfxrt.jar) is not on the default class path for Java 7.
For Java 8 the JavaFX runtime is on the class path.
You can still use plain ant without the Oracle JavaFX ant tasks to build your application (just by ensuring jfxrt.jar is on the class path for your build step), however use of the Oracle tasks is recommended as they will also appropriately package your application for distribution.
See also: Compile code using JavaFX 2.0 (using command line)

ant build generating same class files while packaging the war file

Below is the Ant script i am trying in GAE project but when i look into the war file i see two class for each java file.
Just a fyi, WAR file created i open in winrar but even when i extract it winrar keeps on asking me to either replace existing file message. Not sure how even same file name & extension is present in one folder. Also i checked the "dist" & "classes" folder i does not have duplicate file.
<?xml version="1.0" ?>
<project name="AntExample1" default="war">
<path id="compile.classpath">
<fileset dir="war/WEB-INF/lib">
<include name="*.jar"/>
</fileset>
</path>
<target name="init">
<mkdir dir="build/classes"/>
<mkdir dir="dist" />
</target>
<target name="compile" depends="init" >
<javac destdir="build/classes" debug="true" srcdir="src">
<classpath refid="compile.classpath"/>
</javac>
</target>
<target name="war" depends="compile">
<war destfile="dist/AntExample.war" webxml="war/WEB-INF/web.xml">
<fileset dir="war"/>
<lib dir="war/WEB-INF/lib"/>
<classes dir="build/classes"/>
</war>
</target>
<target name="clean">
<delete dir="dist" />
<delete dir="build" />
</target>
</project>

Ant With Internal Dependencies

I have a a jar right now that uses external dependencies. I'm trying to create a jar that packages all the external dependencies inside, and will just give me one jar. I saw this question asked multiple times, but I still can't figure it out. I'm using Ant, and copied some of the examples I saw on here. I'm using zipgroupfileset to reference the external(now internal) jars. As soon as I added the zipgroupfileset I got a runtime error that said my Runner class could not be found.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- WARNING: Eclipse auto-generated file.
Any modifications will be overwritten.
To include a user specific buildfile here, simply create one in the same
directory with the processing instruction <?eclipse.ant.import?>
as the first entry and export the buildfile again. -->
<project basedir="." default="build" name="ExcelDemo">
<property environment="env"/>
<property name="ECLIPSE_HOME" value="../../../../Program Files (x86)/eclipse"/>
<property name="debuglevel" value="source,lines,vars"/>
<property name="target" value="1.6"/>
<property name="source" value="1.6"/>
<property name="external-lib-dir" value="lib\poi-3.9" />
<property name="external-lib-dir2" value="lib\poi-3.9\lib" />
<property name="external-lib-dir3" value="lib\poi-3.9\ooxml-lib" />
<path id="ExcelDemo.classpath">
<pathelement location="bin"/>
</path>
<target name="init">
<mkdir dir="bin"/>
<copy includeemptydirs="false" todir="bin">
<fileset dir="src" excludes="**/*.launch, **/*.java"/>
</copy>
</target>
<target name="clean">
<delete dir="bin"/>
</target>
<target depends="clean" name="cleanall"/>
<target depends="build-subprojects,build-project" name="build"/>
<target name="build-subprojects"/>
<target depends="init" name="build-project">
<echo message="${ant.project.name}: ${ant.file}"/>
<javac debug="true" debuglevel="${debuglevel}" destdir="bin" source="${source}" target="${target}">
<src path="src"/>
<classpath refid="ExcelDemo.classpath"/>
</javac>
</target>
<target description="Build all projects which reference this project. Useful to propagate changes." name="build-refprojects">
<ant antfile="${ExcelSensitize.location}/build.xml" inheritAll="false" target="clean"/>
<ant antfile="${ExcelSensitize.location}/build.xml" inheritAll="false" target="build">
<propertyset>
<propertyref name="build.compiler"/>
</propertyset>
</ant>
</target>
<target description="copy Eclipse compiler jars to ant lib directory" name="init-eclipse-compiler">
<copy todir="${ant.library.dir}">
<fileset dir="${ECLIPSE_HOME}/plugins" includes="org.eclipse.jdt.core_*.jar"/>
</copy>
<unzip dest="${ant.library.dir}">
<patternset includes="jdtCompilerAdapter.jar"/>
<fileset dir="${ECLIPSE_HOME}/plugins" includes="org.eclipse.jdt.core_*.jar"/>
</unzip>
</target>
<target description="compile project with Eclipse compiler" name="build-eclipse-compiler">
<property name="build.compiler" value="org.eclipse.jdt.core.JDTCompilerAdapter"/>
<antcall target="build"/>
</target>
<target name="RunnerClass">
<java classname="runner.RunnerClass" failonerror="true" fork="yes">
<classpath refid="ExcelDemo.classpath"/>
</java>
</target>
<target name="jar" description="Create a jar for this project">
<manifestclasspath property="lib.list" jarfile="Test.jar">
<classpath refid="ExcelDemo.classpath" />
</manifestclasspath>
<jar jarfile="Test.jar" includes="*.class" basedir="bin">
<zipgroupfileset dir="${external-lib-dir}" includes="*.jar"/>
<zipgroupfileset dir="${external-lib-dir2}" includes="*.jar"/>
<zipgroupfileset dir="${external-lib-dir3}" includes="*.jar"/>
<manifest>
<attribute name="Class-Path" value="${lib.list}" />
<attribute name="Main-Class" value="runner.RunnerClass" />
</manifest>
</jar>
</target>
</project>
To make things simpler:
Create a separate sources jar for compilation. Then, have a separate compiled jar without the sources.
Don't include the third party jars. Instead, use Ivy with Ant. Ant will automatically download the required jars. In fact, I've see sources that just include the ivy.jar, so Ivy will automatically be configured when you unjar the sources. You type in ant, and everything just builds.
As an alternative, you can look at Maven which is how many projects are now packaged. In fact, if your jar is an open source project, you can probably host it on the OSS Maven repository. This way, no one even needs to manually download your compiled jar. If they want it, they configure their Maven project to do it for them.
i think the problem is that you use basedir="bin" in the your jar task. then path of your zipgroupfileset convert to bin/${external-lib-dir}

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