«

Hello:

I am attempting to upgrade from JBoss 3.0.4 to 3.2.5. However,
following the upgrade,
I can no longer seem to precompile my JSPs as I did before. The
following build.xml
extract worked fine in 3.0.4:

<jspc srcdir="${srcDir}" destdir="${jspDir}"
package="${pkgName}" verbose="2"

compilerclasspath="${env.CATALINA_HOME}/jasper-compiler.jar">
<include name="**/*.jsp" />
<classpath>
<pathelement
path="${env.CATALINA_HOME}/servlet-api.jar"/>
<pathelement
path="${env.CATALINA_HOME}/commons-logging.jar"/>
<pathelement
path="${env.CATALINA_HOME}/jasper-compiler.jar"/>
<pathelement
path="${env.CATALINA_HOME}/jasper-runtime.jar"/>
<pathelement
path="${env.XERCES_HOME}/xmlParserAPIs.jar"/>
<pathelement path="${env.XERCES_HOME}/xercesImpl.jar"/>
<pathelement path="${srcDir}/WEB-INF/lib/taglibs.jar"/>
</classpath>
</jspc>


Follwing the 3.2.5 upgrade, this now produces errors such as the
following:

[jasperc] org.apache.jasper.JasperException: Unrecognized option:
-v2.
Use -help for help.

I have also unsuccessfuly tried the apparently new, Tomcat 5
recommended
way of precompiling as follows:

<taskdef classname="org.apache.jasper.JspC" name="jasper2">
<classpath>
<pathelement path="${env.JAVA_HOME}/lib/tools.jar"/>
<fileset dir="${env.CATALINA_HOME}">
<include name="*.jar"/>
</fileset>
<fileset dir="${env.CATALINA_HOME}/">
<include name="servlet*.jar"/>
</fileset>
<fileset dir="${env.CATALINA_HOME}/">
<include name="commons*.jar"/>
</fileset>
<pathelement path="${srcDir}/WEB-INF/lib/taglibs.jar"/>
</classpath>
</taskdef>

<jasper2
validateXml="false"
uriroot="${srcDir}"
webXmlFramgment="${srcDir}/WEB-INF/generated_web.xml"
outputDir="${jspDir}"/>


This produces the following error

java.lang.IncompatibleClassChangeError: Implementing class

What am I missing and/or not doing in the new version? This is a
stock 3.2.5 installation. I'd appreciate any tips on what to investigate or
how I might track this down and resolve it.

Thanks!

ask your question in the tomcat-user mailing !

On 5 Aug 2004 08:32:59 -0700
(skidvd) wrote:

> Hello:
>
> I am attempting to upgrade from JBoss 3.0.4 to 3.2.5. However,
> following the upgrade,
> I can no longer seem to precompile my JSPs as I did before. The
> following build.xml
> extract worked fine in 3.0.4:
>
> <jspc srcdir="${srcDir}" destdir="${jspDir}"
> package="${pkgName}" verbose="2"
>
> compilerclasspath="${env.CATALINA_HOME}/jasper-compiler.jar">
> <include name="**/*.jsp" />
> <classpath>
> <pathelement
> path="${env.CATALINA_HOME}/servlet-api.jar"/>
> <pathelement
> path="${env.CATALINA_HOME}/commons-logging.jar"/>
> <pathelement
> path="${env.CATALINA_HOME}/jasper-compiler.jar"/>
> <pathelement
> path="${env.CATALINA_HOME}/jasper-runtime.jar"/>
> <pathelement
> path="${env.XERCES_HOME}/xmlParserAPIs.jar"/>
> <pathelement path="${env.XERCES_HOME}/xercesImpl.jar"/>
> <pathelement path="${srcDir}/WEB-INF/lib/taglibs.jar"/>
> </classpath>
> </jspc>
>
>
> Follwing the 3.2.5 upgrade, this now produces errors such as the
> following:
>
> [jasperc] org.apache.jasper.JasperException: Unrecognized option:
> -v2.
> Use -help for help.
>
> I have also unsuccessfuly tried the apparently new, Tomcat 5
> recommended
> way of precompiling as follows:
>
> <taskdef classname="org.apache.jasper.JspC" name="jasper2">
> <classpath>
> <pathelement path="${env.JAVA_HOME}/lib/tools.jar"/>
> <fileset dir="${env.CATALINA_HOME}">
> <include name="*.jar"/>
> </fileset>
> <fileset dir="${env.CATALINA_HOME}/">
> <include name="servlet*.jar"/>
> </fileset>
> <fileset dir="${env.CATALINA_HOME}/">
> <include name="commons*.jar"/>
> </fileset>
> <pathelement path="${srcDir}/WEB-INF/lib/taglibs.jar"/>
> </classpath>
> </taskdef>
>
> <jasper2
> validateXml="false"
> uriroot="${srcDir}"
> webXmlFramgment="${srcDir}/WEB-INF/generated_web.xml"
> outputDir="${jspDir}"/>
>
>
> This produces the following error
>
> java.lang.IncompatibleClassChangeError: Implementing class
>
> What am I missing and/or not doing in the new version? This is a
> stock 3.2.5 installation. I'd appreciate any tips on what to investigate or
> how I might track this down and resolve it.
>
> Thanks!

Thai:

Thanks for your suggestion. I have posted this same question there
with no response. I'll be happy to dig into this, but right now I
clueless as to where to begin as the "IncompatibleClassChangeError:
Implememting class" does not give me much to work with.

Thanks in advance for any help anyone may be able to provide!

On 10 Aug 2004 07:54:09 -0700, skidvd wrote:

> Thanks for your suggestion. I have posted this same question there
> with no response. I'll be happy to dig into this, but right now I
> clueless as to where to begin as the "IncompatibleClassChangeError:

And it was such that mindprod.com moved across the waters..
And mindprod.com (that move across the waters) did state..
<http://mindprod.com/jgloss/errormessages.html#INCOMPATIBLECLASSCHANGEERROR>

HMPH

--
Andrew Thompson
http://www.PhySci.org/ Open-source software suite
http://www.PhySci.org/codes/ Web & IT Help
http://www.1point1C.org/ Science & Technology

Unfortunately I am still not making any progress with this issue. I
have read and understand the Javadoc for the
IncompatibleClassChangeError. However, I have not yet found anything
that creates any different outcome from my attempts to change items
possible indicated by that Exception.

Perhaps the ANT stack trace and my build.xml filemay help. I'd
cerainly appreaciet any and allhelp as I have been frustrated by this
problem for over a week now with seemingly no progress despite
significant effort.


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.define ClassFromData(AntClassLoader2.java:76)
at
org.apache.tools.ant.AntClassLoader.getClassFromSt ream(AntClassLoader.java:1073)
at
org.apache.tools.ant.AntClassLoader.findClassInCom ponents(AntClassLoader.java:1137)
at
org.apache.tools.ant.AntClassLoader.findClass(AntC lassLoader.java:1090)
at
org.apache.tools.ant.AntClassLoader.loadClass(AntC lassLoader.java:960)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 35)
at
java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:219)
at
org.apache.tools.ant.taskdefs.Definer.addDefinitio n(Definer.java:457)
at
org.apache.tools.ant.taskdefs.Definer.execute(Defi ner.java:183)
at
org.apache.tools.ant.UnknownElement.execute(Unknow nElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:34 1)
at org.apache.tools.ant.Target.performTasks(Target.ja va:369)
at
org.apache.tools.ant.Project.executeTarget(Project .java:1214)
at
org.apache.tools.ant.Project.executeTargets(Projec t.java:1062)
at org.apache.tools.ant.Main.runBuild(Main.java:673)
at org.apache.tools.ant.Main.startAnt(Main.java:18
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!

[rrahimunisa]

do you still need help? i figured out a way to precompile jsp. But now i have problems when i change my jsp. tomcat is not precompiling new jsp's.