I am trying to integrate yuicompressor with Ant to automate the minification of our CSS and JS files. However, I keep getting the following error message when I try to run build.xml:
BUILD FAILED
/Applications/MAMP/htdocs/zanadu-dev/build/build.xml:64: taskdef A class needed by class com.yahoo.platform.yui.compressor.YUICompressTask cannot be found: org/mozilla/javascript/EvaluatorException
using the classloader AntClassLoader[/usr/share/ant/lib/YUIAnt.jar:/usr/share/ant/lib/yuicompressor-2.4.6/build/yuicompressor-2.4.6.jar:/usr/share/ant/lib/yuicompressor-2.4.6/lib/rhino-1.6R7.jar]
Here is the code in my build.xml file:
<target name="minify" depends="build" description="Minifiy CSS and JS files">
<available file="${antlib.dir}/YUIAnt.jar" property="YUIANT_AVAILABLE" />
<fail unless="YUIANT_AVAILABLE" message="YUIAnt.jar not found" />
<taskdef name="yuicompress" classname="com.yahoo.platform.yui.compressor.YUICompressTask">
<classpath>
<pathelement path="${antlib.dir}/YUIAnt.jar" />
<pathelement path="${antlib.dir}/yuicompressor-2.4.6/build/yuicompressor-2.4.6.jar" />
<pathelement path="${antlib.dir}/yuicompressor-2.4.6/lib/rhino-1.6R7.jar" />
</classpath>
</taskdef>
<mkdir dir="${jsminify.dir}" />
<yuicompress linebreak="300" warn="false" munge="yes" preserveallsemicolons="true"
outputfolder="${jsmin.dir}">
<fileset dir="${js.dir}" >
<include name="**/*.js" />
</fileset>
</yuicompress>
<mkdir dir="${cssminify.dir}" />
<yuicompress linebreak="300" warn="false" munge="yes" preserveallsemicolons="true"
outputfolder="${cssmin.dir}">
<fileset dir="${css.dir}" >
<include name="**/*.css" />
</fileset>
</yuicompress>
</target>
I have tried following several online examples on this, but all seem to yield the same error message. Not sure exactly where I can find the EvaluatorException class that seems to be missing.
Any idea what I may be doing wrong?
Cheers!
Your taskdef is missing one lib.
<taskdef name="yuicompress" classname="com.yahoo.platform.yui.compressor.YUICompressTask">
<classpath>
<pathelement path="${antlib.dir}/YUIAnt.jar" />
<pathelement path="${antlib.dir}/yuicompressor-2.4.6.jar" />
<pathelement path="${antlib.dir}/rhino-1.6R7.jar" />
</classpath>
</taskdef>
EDIT:,
The problem is somehow related to the jar locations and Ant's class-loader, see this post
One workaround is to copy YUIAnt.jar, yuicompressor-2.4.6.jar and rhino-1.6R7.jar to one directory. Then use it like above. I've tried and it works.
if you use http://code.google.com/p/yui-compressor-ant-task/ for me solution was to use classname="net.noha.tools.ant.yuicompressor.tasks.YuiCompressorTask" instead of classname="com.yahoo.platform.yui.compressor.YUICompressTask"
Related
I am trying to run findbugs through ant. This is a snippet of a part of my build file:
<taskdef name="findbugs" classname="edu.umd.cs.findbugs.anttask.FindBugsTask" >
<classpath>
<fileset dir="${findbugs.home}/lib" includes="**/*.jar"/>
<pathelement location="${project.target.android.jar}" />
</classpath>
</taskdef>
<path id="build.classpath">
<pathelement location="${project.target.android.jar}" />
<fileset dir="libs">
<include name="*.jar"/>
</fileset>
</path>
<target name="findbugs" >
<findbugs home="${findbugs.home}" output="html" outputFile="findbugs/findbugs.html">
<class location="${out.classes.absolute.dir}" />
<auxClasspath refId="build.classpath"/>
<sourcePath path="${source.absolute.dir}" />
</findbugs>
</target>
This is unable to recognize the android library and gives errors like: cannot find android.os.Bundle,
etc,...
How do I make it recognize android libraries? I have tried including it using , but this doesn't seem to work.
I am not aware of the complete build file, but the main project compilation works fine, and the android lib included there are in this format:
<gettarget
androidJarFileOut="project.target.android.jar"
...
Findbugs works on Java's class file format. Android uses another format called dex. So Findbugs will not work on that.
My Ant target looks like this:
<target name="junit" depends="compile">
<junit haltonfailure="true" printsummary="true">
<classpath>
<fileset dir="${idea.dir}/lib" includes="junit.jar" />
<fileset dir="${build.dir}" includes="**" />
</classpath>
<formatter type="plain" usefile="true" />
<batchtest fork="false" todir="${out.dir}">
<fileset dir="${build.dir}" includes="test_*/*Test.class" />
</batchtest>
</junit>
</target>
All compiled classes from the project are in ${build.dir}, as well as all compiled test cases. The latter are within ${build.dir}/test_* sub folders.
There is one test class ${build.dir}/test_ecs/EntityManagerTest.class, which apparently is found in batchtest. However, Ant gives me this output in the junit report:
test_ecs.EntityManagerTest
java.lang.ClassNotFoundException: test_ecs.EntityManagerTest
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at com.intellij.rt.ant.execution.AntMain2.main(AntMain2.java:30)
Now, what I don't understand is: Why is the test case class file found, but then the error says exactly that class is not found?
try modifying the <classpath>.. section like this:
<junit ..>
<classpath>
<pathelement location="${idea.dir}/lib/junit.jar"/>
<pathelement path="${build.dir}"/>
</classpath>
and see if it runs...
I suspect your issue is the classpath declaration:
<classpath>
<fileset dir="${idea.dir}/lib" includes="junit.jar" />
<fileset dir="${build.dir}" includes="**" />
</classpath>
Are your *.class files located in the build directory? Or a subdirectory of the build dir?
By way of example here's my standard junit task:
<junit printsummary="yes" haltonfailure="yes">
<classpath>
<path refid="test.path"/>
<pathelement path="${build.dir}/classes"/>
<pathelement path="${build.dir}/test-classes"/>
</classpath>
<formatter type="xml"/>
<batchtest fork="yes" todir="${build.dir}/test-reports">
<fileset dir="${test.src.dir}">
<include name="**/*Test*.java"/>
<exclude name="**/AllTests.java"/>
</fileset>
</batchtest>
</junit>
Note the classpath declaration. It includes the path to 3rd party dependency jars, the directory where I compiled my classes to and the directory I compiled my test classes to.
I have the following ANT script that gives me a list of websphere libraries at runtime based on the websphere root directory. I need to convert the resulting string into separate path location elements
My current script is
<?xml version="1.0" encoding="UTF-8"?>
<project name="TestPath" basedir="." default="print-dirset">
<target name="init" description="Define websphere libraries">
<property name="compile.lib.dir" value="C:\Software\WAS85" />
</target>
<target name="print-dirset" depends="init" description="">
<path id="websphere.libs">
<dirset dir="${compile.lib.dir}">
<include name="*" />
</dirset>
</path>
<property name="websphere.libs.list" refid="websphere.libs" />
<echo message="websphere.libs.list: ${websphere.libs.list}" />
<pathconvert property="websphere.libs.convert" pathsep="${file.separator}*${path.separator}">
<path path="${websphere.libs.list}" />
</pathconvert>
<echo message="websphere.libs.convert: ${websphere.libs.convert}" />
</target>
</project>
which outputs a string like below
[echo] websphere.libs.list: C:\Software\WAS85\Scheduler;C:\Software\WAS85\UDDIReg;C:\Software\WAS85\bin;C:\Software\WAS85\configuration;....C:\Software\WAS85\web;C:\Software\WAS85\wlp
[echo] websphere.libs.convert: C:\Software\WAS85\Scheduler\*;C:\Software\WAS85\UDDIReg\*;C:\Software\WAS85\bin\*;C:\Software\WAS85\configuration\*;...C:\Software\WAS85\web\*;C:\Software\WAS85\wlp
I would like to translate the second string above into a structure like below
<path id="websphere.classpath">
<pathelement location="C:\Software\WAS85\Scheduler\*" />
<pathelement location="C:\Software\WAS85\UDDIReg\*" />
<pathelement location="C:\Software\WAS85\bin\*" />
<pathelement location="C:\Software\WAS85\configuration\*" />
......
<pathelement location="C:\Software\WAS85\web\*" />
<pathelement location="C:\Software\WAS85\wlp\*" />
</path>
The last element in the conversion also needs to add the '\*' part which is not in the original string.
which can then be used with a structure like
<path id="compile.classpath">
<path refid="ext.classpath"/>
<path refid="websphere.classpath"/>
<path refid="module.compile.classpath"/>
</path>
The purpose of the above attempt is to reduce the length of classpath by using wildcard classpath provided by JDK 1.6 and which is available in ANT starting ANT 1.8.2. I am using ANT 1.8.4.
I am not an expert in ANT, I can just get by, by looking at examples.
Is there a way to achieve what I am trying to do? How can I do it? Any example would be very helpful.
If all of your dependencies reside in C:\Software\WAS85, you can use fileset to catch all of your dependencies:
<fileset dir="${compile.lib.dir}" id="compile.files">
<include name="**/*.java"/>
<!-- include name="**/*.jar" /-->
</fileset>
You can then use to refer to this fileset as compile.files elsewhere in your build.xml.
I was able to get the wildcard part to work by using the fork="yes" and executable="path-to-my-executable" attributes in the javac task.
I do not want to mark the question answered, because my basic question was about converting the string. But since the answer received didn't talk about that and also didn't mention how to get wildcard classpath working, and the purpose of my question was to get the wildcard classpath working, i have noted it here for whoever is trying to get that to work
I still need some help in converting the semi-colon separated string to construct like below
<path id="websphere.classpath">
<pathelement location="C:\Software\WAS85\Scheduler\*" />
<pathelement location="C:\Software\WAS85\UDDIReg\*" />
<pathelement location="C:\Software\WAS85\bin\*" />
<pathelement location="C:\Software\WAS85\configuration\*" />
......
<pathelement location="C:\Software\WAS85\web\*" />
<pathelement location="C:\Software\WAS85\wlp\*" />
</path>
Update:
I wrote a custom ANT task to get the wildcard classpath working
I defined a path in a file called unittest.xml in the following way(line 26):
<path id="tasks.path">
<pathelement location="${publish.home}/INSIDE/UnitTest/testinganttasks.jar"/>
</path>
next I tried to use the path in the following way:
<classpath>
<path refid="tasks.path" />
</classpath>
in a taskdef tag.
when I run my ant code, it does everything well until I get the following error:
BUILD FAILED unittest.xml:296: The
following error occurred while
executing this line: unittest.xml:281:
Reference tasks.path not found.
How can I resolve this issue?
You should see this example at http://ant.apache.org/manual/using.html#references
<project ... >
<path id="project.class.path">
<pathelement location="lib/"/>
<pathelement path="${java.class.path}/"/>
<pathelement path="${additional.path}"/>
</path>
<target ... >
<rmic ...>
<classpath refid="project.class.path"/>
</rmic>
</target>
<target ... >
<javac ...>
<classpath refid="project.class.path"/>
</javac>
</target>
</project>
I think your problem is that in classpath you should not nest path element, but give id of the path for the classpath element itself.
When declaring external ant tasks using taskdef, for instance ant-contrib, the proposed setup is to use the followin taskdef:
<taskdef resource="net/sf/antcontrib/antcontrib.properties">
<classpath>
<pathelement location="lib/ant-contrib/ant-contrib-1.0b3.jar"/>
</classpath>
</taskdef>
This works when antcontrib.properties is located in net/sf/antcontrib relative to the build.xml file.
But when I put it in lib/net/sf/antcontrib and changes the taskdef into
<taskdef resource="lib/net/sf/antcontrib/antcontrib.properties">
<classpath>
<pathelement location="lib/ant-contrib/ant-contrib-1.0b3.jar"/>
</classpath>
</taskdef>
Ant is not able to find the properties file, it gives the error
[taskdef] Could not load definitions from resource
lib/net/sf/antcontrib/antcontrib.properties. It could not be found.
It seems like ant treats the lib directory separately and fails to load a taskdef resource from there.
As Alex said, you shouldn't need to unzip the jar. The <taskdef> can load antcontrib.properties directly out of the jar.
The error you got is because you changed the resource path, but the path to the file inside the compressed jar/zip is still the same. The taskdef isn't paying attention to the properties file you moved because the <classpath> you provided to <taskdef> tells it to only look in the jar.
Use antlib.xml resource:
Here is the taskdef definition that I use:
<property name="ant-contrib.jar" location="..."/>
<taskdef
resource="net/sf/antcontrib/antlib.xml"
uri="http://ant-contrib.sourceforge.net"
>
<classpath>
<pathelement location="${ant-contrib.jar}"/>
</classpath>
</taskdef>
You do not need to extract anything from the jar file. Also, uri attribute is optional if you do not want to use namespaces with antcontrib tasks.
To handle classpath for tasks definitions, I use a classpath ref in Ant, it's way easier. You can link either a directory containing classes, either a directory containing many .jar, either (of course) a single .jar.
For example :
<!-- Properties -->
<property name="lib" value="lib/" />
<property name="classes" value="bin/" />
<!-- Classpath definition -->
<path id="runtime-classpath" >
<pathelement location="${bin}" />
<fileset dir="${lib}">
<include name="*.jar"/>
</fileset>
</path>
<!-- Taskdefs definitions -->
<taskdef name="myTask" classname="org.stackoverflow.tasks.MyTask" classpathref="runtime-classpath" />
<!-- Tasks -->
<target name="test" description="Test Action">
<myTask parameter1="value" />
</target>