[JAVA] Problems with ANT

[erwan]

Hello.

I just set up my Java environement by reading the Java Gentoo environement.

I installed Blackdown-jdk since some applications seem to need it, then sun-jdk and I set sun's one as default one. I installed Tomcat and ANT plus some other applications, and I added them all to CLASSPATH with java-config.

I tried to compile my friend's program (which actually works on a properly set system) but here I have the following error:

Code: Select all

file:/home/erwan/Research/Implementation/dist/build.xml:147: taskdef class org.apache.catalina.ant.InstallTask cannot be found

It looks like a classpath error, but since I don't know Java very well I don't know where to look to find out it. Maybe ANT needs some additional configuration steps...

[t1deman]

I think you may be missing catalina.jar either in your classpath or on your machine. I think it might be installed with tomcat. Is tomcat installed?

[erwan]

Well, after using java-config my CLASSPATH is the following:

/opt/sun-j2sdk-1.4.1/jre/lib:/opt/sun-j2sdk-1.4.1/lib/tools.jar:/usr/share/ant/lib/ant.jar:/usr/share/ant/lib/optional.jar:/usr/share/tomcat/lib/xercesImpl.jar:/usr/share/tomcat/lib/xmlParserAPIs.jar:/usr/share/tomcat/lib/activation.jar:/usr/share/tomcat/lib/ant.jar:/usr/share/tomcat/lib/commons-collections.jar:/usr/share/tomcat/lib/commons-dbcp.jar:/usr/share/tomcat/lib/commons-logging-api.jar:/usr/share/tomcat/lib/commons-pool.jar:/usr/share/tomcat/lib/jasper-compiler.jar:/usr/share/tomcat/lib/jasper-runtime.jar:/usr/share/tomcat/lib/jdbc2_0-stdext.jar:/usr/share/tomcat/lib/jndi.jar:/usr/share/tomcat/lib/jta.jar:/usr/share/tomcat/lib/mail.jar:/usr/share/tomcat/lib/naming-common.jar:/usr/share/tomcat/lib/naming-factory.jar:/usr/share/tomcat/lib/naming-resources.jar:/usr/share/tomcat/lib/servlet.jar:/usr/share/postgresql/lib/postgresql.jar:.

Indeed, catalina.jar is not is the classpath. I could find it and add it to the classpath ; actually the missing jar was catalina-ant.jar from the same directory.

I am surprised - adding modules "tomcat" and "ant" to classpath using java-config should have installed these jar in classpath, shouldn't it ?

[bloatedfish]

I too am having ant/classpath problems. When I run ant I get the following error:

Code: Select all

BUILD FAILED
Unable to load default ProjectHelper due to java.lang.NoClassDefFoundError: org/xml/sax/SAXException

This happens no matter what build file I use. I assume this is a classpath issue, but I don't know how to fix it. I have tried:

Code: Select all

java-config --set-system-classpath=ant

the command completes with no errors but I get no indication that the classpath has actually changed. The CLASSPATH environment varible does not change(although I don't know if it is suspossed to). How do you tell what the current classpath is set too!

Thanks for any help!

[poke@ulyssis]

install xalan and your problem should be solved.

I think ant has to depend on xalan or another xml-java package.

[bloatedfish]

install xalan and your problem should be solved.

My thoughts exactly, but xalan won't install because it uses ant! AYYYEE! What a catch-22. I did get xerces to install, but adding that to the LOCALCLASSPATH used in the ant launcher script didn't help. Still get the same error as before. Seems to me that dev-java/ant-1.5.3-r4 package's dependencies are a incorrect.

[bloatedfish]

I downgraded to ebuild dev-java/ant-1-5.2 and it works like a charm. The big difference between these two packages are these files:

/usr/share/ant/lib/xercesImpl.jar
/usr/share/ant/lib/xml-apis.jar

They are missing, which would coinside with the xml parser missing and the error that I was getting with 1-5.3. Someone should fix this. Does anyone know who is in charge of the ant ebuild?

[/list]

[Seclar]

I too was getting

Code: Select all

BUILD FAILED
Unable to load default ProjectHelper due to java.lang.NoClassDefFoundError: org/xml/sax/SAXException

Wasted a few hours of my day trying to fathom this out.

Can someone please fix the Ant ebuild ???

[Lehren]

Has there been any progress here? I'm merely attempting to build the tomcat-docs HelloWorld servlet and am getting:

Code: Select all

/opt/tomcat/webapps/tomcat-docs/appdev/sample

Buildfile: build.xml

BUILD FAILED
file:/opt/tomcat/webapps/tomcat-docs/appdev/sample/build.xml:146: taskdef class org.apache.catalina.ant.InstallTask cannot be found

I have ant 1.5.3 and tomcat-4.1.24-r1.

I have tried:

1) copying the catalina-ant.jar to ant/lib, with no change
2) using ant 1.5.4 for kicks, no change

I'd like to downgrade to ant 1.5.2 and try that (a la the poster above), but the 1.5.2 ebuild file appears to have been deleted out of CVS?

Any suggestions would be most appreciated.. thank you.