I have some jar files which are added in the CLASS_PATH of the batch process.So at the end of the batch process all I have to do is just to use java command shown below
java -cp %CLASS_PATH% com.web.MainClass arg1
I am planning to do the same thing using Ant. Any suggestion of how my target should look like?
You use the <java> Ant target. See docs.
For example:
<java classname="com.web.MainClass">
<arg value="arg1"/>
<classpath>
<pathelement location="..."/>
<pathelement location="..."/>
</classpath>
</java>
Related
We are trying to integrate the Sencha CMD to our custom application ant script( build.xml) inorder to do minification of js files. Could you please let us know the steps needs to be followed for minifcation of js files . It could be useful if you could provide sample file to achieve this. We tried the following steps as per the manual to just include the sencha.jar which resulted in error "init-sencha-cmd:
[taskdef] Could not load definitions from resource com/sencha/ant/antlib.xml."
I have added the target "init-sencha-cmd" as dependency to target "build" and a property build.dir (basedir="." configured in the start of xml)
<target name="build" depends="init, dependencies, pre-compile, compile, post-compile,init-sencha-cmd" description="Builds the project." />
<property name="build.dir" location="${basedir}"/>
<target name="init-antcontrib">
<taskdef resource="net/sf/antcontrib/antlib.xml">
<classpath>
<pathelement location="${Bundles.WebCharts.lib}/ant-contrib-1.0b3.jar"/>
</classpath>
</taskdef>
</target>
<target name="init-sencha-cmd" depends="init-antcontrib">
<taskdef resource="com/sencha/ant/antlib.xml" classpath="/Users/hatamm/bin/Sencha/Cmd/5.0.3.324/sencha.jar"/>
</target>
I'm working on getting an ANT build working for GWT. My build fails with basically no information-
[echo-update] (08:27:26) Compiling gwtp ...
[echo-update] (08:27:30) Project gwtp updated.
[echo-update] (08:27:43) build gwt-all
BUILD FAILED
c:\git\psuite\build\build-gwt.xml:92: The following error occurred while executing this line:
c:\git\psuite\build\build-gwt.xml:72: Java returned: 1
The java build portion happens fine with no error here or in eclipse, but the build from java to javascript fails, with basically no error message. Is there something I can do to enable more output? Here's the portion of the ANT build where it's failing.
<macrodef name="gwt-compile-js" description="compiles java to javascript">
<attribute name="module"/>
<sequential>
<property name="gwt.args" value="-style ${gwt.compiler.style} -logLevel ${gwt.compiler.loglevel} -compileReport -XsoycDetailed -XdisableCastChecking"/>
<java classname="com.google.gwt.dev.Compiler" failonerror="true" fork="true">
<classpath>
<pathelement location="${gwt.src.dir}"/>
<path refid="gwt.project.class.path"/>
</classpath>
<jvmarg value="${gwt.compiler.jvmargs}"/>
<arg line="-war"/>
<arg value="${gwt.deploy.dir}"/>
<arg line="-localWorkers ${gwt.compiler.localworkers}"/>
<arg line="${gwt.args}"/>
<arg line="#{module}"/>
</java>
</sequential>
</macrodef>
The log level is set to ALL, and the style is OBF.
Thanks for any help!
I am getting an error Could not load definitions from resource net/sf/antcontrib/antcontrib.properties. It could not be found. when I am trying to ant build on eclipse. So I downloaded ant-contrib-0.6.jar and kept it in my /lib location of apache ant, but it still does not resolve my issue. I have also tried by specifying the /lib location in my CLASSPATH system variable. How can I get around this error?
You can provide full path to the ant-contrib JAR explicitly using "classpath" element:
<taskdef resource="net/sf/antcontrib/antlib.xml">
<classpath>
<pathelement location="${path-to-ant-contrib}/ant-contrib-1.0b3.jar"/>
</classpath>
</taskdef>
EDIT: Link contributed by Djacomo:
http://ant-contrib.sourceforge.net/
One important thing missing from this StackOverflow page is that setting the correct ANT_HOME env var is absolutely vital and important, without this setting ant keeps telling the same error, regardless of where you copy the ant-contrib-1.0b3.jar on your file systems. This missing thing has costed me a few hours. =)
However I receive this error without eclipse, in the pure ant.
I fixed that this way:
Add the JAR to the Ant runtime classpath entries.
Window>Preferences>Ant>Runtime>Classpath
Add the JAR to either Ant Home Entries or Global Entries.
It would appear that you haven't installed the ant contrib jar into the correct lib directory. This can be difficult to do if you have several installations of ANT.
My suggestion is to install your ANT plugins into the "$HOME/.ant/lib" directory. You could go one step further and automate the process as follows:
<project name="ant-contrib-tasks" default="all">
<taskdef resource="net/sf/antcontrib/antlib.xml"/>
<target name="bootstrap">
<mkdir dir="${user.home}/.ant/lib"/>
<get dest="${user.home}/.ant/lib/ant-contrib.jar" src="http://search.maven.org/remotecontent?filepath=ant-contrib/ant-contrib/1.0b3/ant-contrib-1.0b3.jar"/>
</target>
<target name="all">
<for param="file">
<fileset dir="." includes="*.txt"/>
<sequential>
<echo message="Found file #{file}"/>
</sequential>
</for>
</target>
</project>
Use the below mentioned code in your build xml:
<path id="ant.classpath">
<pathelement location="${ant.jarPath}/ant.jar" />
<pathelement location="${ant.jarPath}/ant-contrib-0.3.jar" />
</path>
<taskdef resource="net/sf/antcontrib/antcontrib.properties">
<classpath refid="ant.classpath" />
</taskdef>
And in your build property file:
ant.jarPath=D:/antjars
And place ant.jar and ant-contrib-0.3.jar in directory:D:/antjars
Check you have read permissions for the ant-contrib jar file.
In our case after copying the file with another user it did not, giving the same error message.
I use:
<java failonerror="true" classname="com.google.web.bindery.requestfactory.apt.ValidationTool">
<arg path="${path.to.ouput.jar}" />
<arg value="com.my.RequestFactory" />
<classpath>
<path refid="my_classpath" />
</classpath>
</java>
my_classpath has all requestfactory-client.jar, requestfactory-server.jar, requestfactory-apt.jar + my source & the jar produced from it in the path (that's confirmed with just printing it), but I still get:
[java] error: Unable to find RequestFactory built-in type. Is requestfactory-[client|server].jar on the classpath?
What could be wrong here?
For me, this works only, if I specify <javac fork="true" ...
From the official ant documentation on the java task:
If odd things go wrong when you run this task, set fork="true" to use a new JVM.
Without any deep investigation, I would say it's most likely a classloader problem.
Could someone tell me what I need to do to enable Guava support in GWT.
I have downloaded Guava R07 and in there there are the following two files:
guava-r07.jar
guava-r07-gwt.jar
I have a few questions regarding this:
Where do these files go? I am guessing that the standard Jar is made available to my IDE for coding, and that both are made available to the GWT compiler for building the JavaScript?
Do I need to add all the .gwt.xml files from the -gwt.jar into my project's main gwt.xml file or only the portions I need?
There are other Jars on the trunk of the Guava&GWT project (ie not in the download, such as one for jsr305) which I think I may need, but I'm not sure.
Sorry, normally I don't have trouble with this kind of thing, but I can't quite work out what goes where.
FYI I'm using GWT 1.6 for the time being, but am hoping to move to 2 soon. If Guava isn't compatible with 1.6 that is not a problem.
Update
I have the following files in a folder called gwtlib:
guava-r07-gwt.jar
guava-r07.jar
jsr305-1.3.9.jar
And my Ant script does the following:
<path id="project.class.path">
<fileset dir="gwtlibs" includes="guava-r07.jar"/>
<fileset dir="gwtlibs" includes="guava-r07-gwt.jar"/>
<fileset dir="gwtlibs" includes="jsr305-1.3.9.jar"/>
<pathelement location="${gwt.sdk}/gwt-user.jar"/>
<fileset dir="${gwt.sdk}" includes="gwt-dev*.jar"/>
</path>
<target name="gwtc">
<java failonerror="true" fork="true" classname="com.google.gwt.dev.Compiler">
<classpath>
<pathelement location="app"/>
<path refid="project.class.path"/>
</classpath>
<jvmarg value="-Xmx256M"/>
<arg value="-localWorkers"/>
<arg value="2"/>
<arg value="-war"/>
<arg value="gwt-public"/>
<arg value="Main"/>
</java>
</target>
Running the above command, I get the following errors:
Errors in 'jar:file:///project/gwtlibs/guava-r07-gwt.jar!/com/google/common/collect/Constraints.java'
Line 254: The method subList(int, int) is undefined for the type List
Without the jsr jar on the classpath, I get the following errors:
The import javax.annotation cannot be resolved
Nullable cannot be resolved to a type
Thanks
Rich
Add these jars to your classpath. If you're using IDE, add them to your Build Path by right-clicking "Referenced Libraries" in your Package Exporer, select "Configure Build Path" and add them as external JARs.
You only need to inherit the modules you plan on using in your .gwt.xml file. For example, if you only use the common.collect package, just add <inherits name="com.google.common.collect.Collect" />
You probably don't need jsr305.jar, but if you do, just add it the same way as you added the other jars.
Guava should work just fine with GWT 1.6, if it doesn't then it's probably a bug.
Guava isn't compatible with GWT 1.6. List.subList, in particular, is added to GWT in GWT 2. The earliest version that we fully supported is GWT 2.0.4