Re: JSP Precompilation with Tomcat 5

2004-08-11 Thread QM 
On Tue, Aug 10, 2004 at 11:44:54PM -0400, [EMAIL PROTECTED] wrote:
: BUILD FAILED
: java.lang.IncompatibleClassChangeError: Implementing class

Given the definition of IncompatibleClassChangeError[1], it sounds like
you have a rogue JAR or classfile somewhere in the classpath.  If you're
upgrading from Tomcat 4 - 5 beware of lingering v4 code.

Check the various endorsed dirs, as people sometimes put JARs there
out of desperation and then forget about them.

Also, this looks odd:

: classpath id=jspc.classpath
: pathelement path=${env.JAVA_HOME}/lib/tools.jar/

I don't know whether it's wrong, just that my precompilation works
without it. =)


: fileset dir=${env.CATALINA_HOME}
: include name=jasper-compiler.jar/
: /fileset

Wouldn't this be common/lib/jasper-compiler.jar ?
-and wouldn't you also need servlet-api.jar and jsp-api.jar?

-QM

[1] = 
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/IncompatibleClassChangeError.html

   Thrown when an incompatible class change has occurred to some class
   definition. The definition of some class, on which the currently
   executing method depends, has since changed.


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JSP Precompilation with Tomcat 5

2004-08-10 Thread tomcat 
I have been trying to resolve a frustration JSP precompilation
problem with Tomcat 5.  I had everythng working in prior Tomcat
releases but ever since the upgrade to 5 I am getting the
following error when I try to precompile my JSPs.

BUILD FAILED
java.lang.IncompatibleClassChangeError: Implementing class

java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at
org.apache.tools.ant.loader.AntClassLoader2.defineClassFromData(AntClassLoader2.java:76)
at
org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader.java:1073)
at
org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1137)
at
org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1090)
at
org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:960)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:219)
at
org.apache.tools.ant.taskdefs.Definer.addDefinition(Definer.java:457)
   at
org.apache.tools.ant.taskdefs.Definer.execute(Definer.java:183)
at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at
org.apache.tools.ant.Project.executeTarget(Project.java:1214)
at
org.apache.tools.ant.Project.executeTargets(Project.java:1062)
at org.apache.tools.ant.Main.runBuild(Main.java:673)
at org.apache.tools.ant.Main.startAnt(Main.java:188)
at
org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
at
org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)


Here is the excerpt from my build.xml

  target name=jspc depends=prepare, compile
description=prepares JSP source files

!-- echoproperties/ --
echo message=About to define JspC task/
taskdef classname=org.apache.jasper.JspC name=jasper2
!--
--
classpath id=jspc.classpath
pathelement path=${env.JAVA_HOME}/lib/tools.jar/
fileset dir=${env.CATALINA_HOME}
include name=jasper-compiler.jar/
/fileset
pathelement path=${srcDir}/WEB-INF/lib/taglibs.jar/
/classpath
/taskdef
echo message=after JspC task defintion/

echo message=About to invoke jasper2/
jasper2
validateXml=false
uriroot=${srcDir}
webXmlFramgment=${srcDir}/WEB-INF/generated_web.xml
outputDir=${jspDir}/

  /target

  target name=jspCompile depends=jspc
description=compiles JSP source files
javac srcdir=${jspDir} destdir=${srcDir}/WEB-INF/classes
 classpathref=classpath/
  /target


I would greatly appreciate any and all help in resolving this
issue as I am at my wits end and out of ideas to try.

Thanks in advance!





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