I have created a J2ME project after referring to this article J2MEUsingAntwithJ2ME. Now I am having problems in adding resources (such as images) and libraries (such as jar and zip files).
I have copied the resources in the res folder as shown in this article but when I extract the .jar file, it does not have any resources.
From the sample:
<jar basedir="${build}/preverifiedobf"
jarfile="${build}/bin/${program_name}.jar"
manifest="bin/MANIFEST.MF">
<fileset dir="${top}/${res}">
<include name="${package_name}/*.png"/>
</fileset>
</jar>
This will only include *.png files which are in /res folder. If you want to include more types, add more <include> lines or include "${package_name}/**".
If you want to include the content of existing .jar files, you can unjar them like this:
<mkdir dir="${build}/libs"/>
<unjar src="yourlibrary.jar" dest="${build}/libs" />
Then you can jar them up again:
<jar basedir="${build}/preverifiedobf"
jarfile="${build}/bin/${program_name}.jar"
manifest="bin/MANIFEST.MF">
<fileset dir="${top}/${res}">
<include name="${package_name}/*.png"/>
</fileset>
<fileset dir="${build}/libs">
<include name="**/*"/>
</fileset>
</jar>
The Apache Ant manual contains a lot of examples for all the supported tags.
Related
I'm attempting to add a splash-screen to a large Java project. The application is compiled into an executable .jar file using ANT.
I am able to get the splash screen working easily from NetBeans by simply adding -splash:src/com/.../.../image.PNG to my main project's VM options. However, adding SplashScreen-Image: com/.../.../image.PNG to my manifest file fails with "SplashScreen.getSplashScreen() returned null"
I have already opened up my .jar archive to confirm that things were set up correctly: my META-INF\MANIFEST.MF file includes the SplashScreen-Image line. I have tried moving it before or after Main-Class. My actual image.PNG is also in the archive, in the correct path location.
I compile this java project with ANT, which I can guess is the source of my problems (I was able to make a simple, "jar cmf ..." example work just fine).
I use the following to get the project elements ready for achiving:
<target name="compile" depends="init"
description="Compile the source">
<!-- Compile the java code from ${src} into ${build} -->
<path id="lib.path.ref">
<fileset dir="${path_to_jre}" includes="*.jar"/>
</path>
<javac srcdir="${src}" destdir="${build}" source="${java_ver}" target="${java_ver}"
includeantruntime="false">
<!--compilerarg value="-Xbootclasspath/p:${toString:lib.path.ref}" compiler="javac1.7"/-->
<compilerarg value="-Xlint:unchecked"/>
<classpath>
<fileset dir="${LibDir}">
<include name="*.jar"/>
</fileset>
<pathelement path="${dependant_jar}"/>
<pathelement path="${another_dependant_jar}"/>
</classpath>
</javac>
<!-- Copy the .png files -->
<copy todir="${build}">
<fileset dir="${src}" casesensitive="false">
<include name="**/*.PNG"/>
</fileset>
</copy>
</target>
Notice that I use a copy to move .PNG files in with .class files. My image.PNG for the Splash Screen is just in with the others. I added it to my netbeans project by simply copying it there - nothing fancy.
My achieve target is as follows:
<target name="archive" depends="compile"
description="Generate the .jar file">
<!-- Put everything in ${build} into the .jar file -->
<jar jarfile="${jarfile}" basedir="${build}">
<!-- Merge in contents of dependency .jars -->
<zipfileset src="${LibDir}/snakeyaml.jar"/>
<zipfileset src="${dependant_jar}"/>
<zipfileset src="${another_dependant_jar}"/>
<!-- Specify main class in manifest -->
<manifest>
<attribute name="SplashScreen-Image" value="com/../../image.PNG"/>
<attribute name="Main-Class" value="${mainclass}"/>
</manifest>
</jar>
</target>
So my manifest in the eventual .jar is created here, which is also where I eventually realized to add the splashscreen tag.
I am somewhat new to working with ANT, so any advice regarding how to handle this or what to look for is appreciated.
It is not an issue with Ant. The problem is that the -splash option takes a file name, but the SplashScreen-Image manifest attribute must refer to a jar entry. If com/example/brian/image.PNG isn’t in the .jar file, it won’t be usable by SplashScreen-Image. The purpose of a .jar file is to be act as a self-contained module or application, so it should include all of the resources it needs.
The solution is to include the image in your .jar file:
<jar jarfile="${jarfile}" basedir="${build}">
<fileset dir="${src}" includes="**/*.PNG"/>
Update: Your build file was already adding the images to the .jar with a <copy> task, and I failed to notice it.
I have a solution, although I'm sure someone else will understand this better than I do.
I was able to run, with a splash-screen, using the Java binary in ../jre/lib/Java.exe, however I had initially been working from ../lib/Java.exe.
Looks like this is a known bug? Link here: https://bugs.java.com/bugdatabase/view_bug.do?bug_id=7129420. I guess the path to the SplashScreen dll is hardcoded.
Note: Thanks to user VGR for the exhaustive help.
I need to include some third party jar file to my project jar. I mentioned it in my build.xml and include this to MANIFEST.MF. Now i get thirdparty1.jar thirdparty2.jar file into inside the project jar. But still i can't able to use the jars. Is it need any addition configuration
Here is my build.xml
<manifest>
<attribute name="Class-Path" value="thirdparty1.jar thirdparty2.jar thirdparty3.jar"/>
If i copy the two jar separately it works well. But i don't understand what is the need for copy these separate. How it solve with out copying jar separately.
If the dependency jar is packaged inside the project jar, you need a solution to load it from there. The standard class-path handling in Java won't access jar files located inside other jar files.
See this answer: Classpath including JAR within a JAR. Specifically the One Jar solution: http://one-jar.sourceforge.net/.
It's also possible to use zipgroupfileset for that.given is the sample ant task for that.
<!-- Build JAR file -->
<target name="jar" depends="init-build-dir,compile-main">
<!--creating a temp jar contains all jar -->
<jar jarfile="${project.build.lib.dir}/external-libs.jar">
<zipgroupfileset dir="${project.lib.redist.dir}">
<include name="**/*.jar" />
</zipgroupfileset>
</jar>
<sleep seconds="1" />
<!-- creating main jar with temp jar-->
<jar jarfile="${project.build.lib.dir}/${ant.project.name}.jar" manifest="MANIFEST.MF">
<fileset dir="${project.build.main.classes.dir}" includes="**/*.*" />
<zipfileset src="${project.build.lib.dir}/external-libs.jar">
<exclude name="*" />
</zipfileset>
</jar>
<!--removing temp jar -->
<delete>
<fileset dir="${project.build.lib.dir}">
<include name="external-libs.jar" />
</fileset>
</delete>
</target>
I have a package(with some outdated Java files) which i need to build using ant tool. I have some updated classes for which source is not available. So, I need to add the updated class to the jar during build and skip the outdated Java files from the build. Please let me know how to achieve this.
For example - I dont have the updated source java file for com.org.auth.ABC.Java, but i have the updated class file which i got from the another source ie com.org.auth.ABC.class. During build i need to point to the updated class(com.org.auth.ABC.class) for this class alone and create a new jar.
Please find how i am currently pointing to the class files below.
<target name="xxx.jar" depends="xjc,compile">
<jar destfile="${dist.dir}/xxx.jar">
<fileset dir="${classes.dir}" includes="**/*.class"/>
<fileset dir="${jaxb-classes.dir}" includes="**/*.class"/>
<fileset dir="${jaxb-source.dir}" includes="**/bgm.ser,**/jaxb.properties"/>
</jar>
</target>
If you want to leave some package from compilation you can use excludes attribute of fileset ant tag.
for example:
<fileset dir="src/">
<exclude name="**/dir_name_to_exclude/**" />
</fileset>
In order to include the specified class in compilation you can put the containing folder in your class-path using ant.
<path id="project.class.path">
<pathelement location="lib/"/>
<pathelement path="${java.class.path}/"/>
<pathelement path="path to your class file's base folder"/>
</path>
<javac srcdir="${src.dir}"
destdir="${classes.dir}"
classpathref="project.class.path">
... put source files here..
</javac>
And if you want to include that class-file in your jar then add it to fileset using include tag:
<fileset dir="classfiles">
<include name="your class file name"/>
</fileset>
Hope this helps
My project folder has a bunch of dependent jars in:
/lib/someapi-1.1.1/main.jar
/lib/someotherapi-2.2.2/api-2.2.2.jar
/lib/...
I build a JAR file and my application requires that the dependent jars get included in the final jar in the /lib folder within the jar, so the final jar should have a structure something like:
/org/me/myclasses.class
/lib/main.jar
/lib/api-2.2.2.jar
How do I get the /lib/*.jar files flattened an included in the /lib directory of my final jar file?
CLARIFICATION
I'm essentially just trying to get a set of resource files flattened and added to a given directory in my final jar.
In case you wanted do skip the copy step, you could do it this way. It uses <mappedresources> to flatten from the source lib directories to the classes/lib area.
<jar destfile="${dist}/MyOneBigJar.jar">
<fileset dir="${classes}"/>
<mappedresources>
<fileset dir="lib">
<include name="**/*.jar" />
</fileset>
<chainedmapper>
<flattenmapper />
<globmapper from="*" to="classes/lib/*" />
</chainedmapper>
</mappedresources>
</jar>
The easiest way I see is to copy allyour jars to a temporary folder using the copy task and its flatten attribute, and to include the jars of this temporary directory into the destination jar.
ADDED DETAIL added by asker
Here's what the final ANT target looks like (for future reference):
<target name="dist">
<mkdir dir="${classes}/lib"/>
<copy flatten="true" todir="${classes}/lib" includeemptydirs="false">
<fileset dir="lib">
<include name="**/*.jar" />
</fileset>
</copy>
<jar destfile="${dist}/MyOneBigJar.jar">
<fileset dir="${classes}"/>
</jar>
</target>
Consider the following directory structure:
./source/com/mypackage/../A.java
./extensions/extension1/source/com/mypackage/../T.java
./extensions/extension2/source/com/mypackage/../U.java
...
./extensions/extensionN/source/com/mypackage/../Z.java
I want to produce a source jar with the following contents:
com/mypackage/../A.java
com/mypackage/../T.java
com/mypackage/../U.java
...
com/mypackage/../Z.java
I know I could use a fileset for each source directory.
But is there an easy solution using ANT without having to refer to all extensions explicitly?
How about flattening all the files to be included in the archive into a single directory structure, then archiving from there?
Use a regexpmapper to do the flatten during copy, something like this:
<delete dir="merged" />
<mkdir dir="merged" />
<copy todir="${basedir}/merged">
<fileset dir="${basedir}">
<include name="source/**"/>
<include name="extension*/**"/>
</fileset>
<regexpmapper from=".*source/(.*)" to="\1" />
</copy>
<jar destfile="mypackage.jar" filesonly="yes">
<fileset dir="merged">
<include name="**" />
</fileset>
</jar>