RE: What to put into JAVA_HOME on Windows xp

[Ramnish Kalsi]

Remove bin from the JAVA_HOME. 

JAVA_HOME=C:\JDK1.4\AppServer\jdk

-ramnish.
-Original Message-
From: Markus Hapke [mailto:[EMAIL PROTECTED] 
Sent: 25 September 2005 21:27
To: tomcat-user@jakarta.apache.org
Subject: What to put into JAVA_HOME on Windows xp

Hello,

I just installed tomcat 5.0.28 successfully.

Then tested the samples in
C:\TOMCAT\webapps\jsp-examples\jsp2 - they worked.

Thed tried to test a .jsp of my own- getting the error msg in the MS
Internet-Explorer:
=== BEGIN of error Msg  HTTP
Status 500 - 

type Exception report

message 

description The server encountered an internal error () that prevented it
from fulfilling this request.

exception 

org.apache.jasper.JasperException: Unable to compile class for JSP

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandle
r.java:97)

org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:3
46)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)

org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:5
11)

org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
95)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause 

Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the
JDK

org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(C
ompilerAdapterFactory.java:106)
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)

org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:5
11)

org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
95)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


note The full stack trace of the root cause is available in the Apache
Tomcat/5.0.28 logs.
=== END of error Msg= ==

I set the environment entry of JAVA_HOME to C:\JDK1.4\AppServer\jdk\bin

Is that correct?

OK, nobody of you could know where I have my J2EE (1.4) :
it is 'mounted' under:
C:\JDK1.4\AppServer
and i can find the javac.exe under: C:\JDK1.4\AppServer\jdk\bin

Is my entry of the JAVA_HOME correct? 

Is there another error?

Thanx in advance, Markus

--
,,

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RE: jasper jsp precompilation error

[Ramnish Kalsi]

This method was added in Servlet API version 2.3. 

Can you check if you are using that version ? 

Have a look at whats in your classpath at JSP precompilation time !!!


-Original Message-
From: Aaron Phillips [mailto:[EMAIL PROTECTED]
Sent: 06 September 2005 23:27
To: tomcat-user@jakarta.apache.org
Subject: jasper jsp precompilation error


Hi
I am trying to do JSP precompilation as described at 
http://jakarta.apache.org/tomcat/tomcat-5.0-doc/jasper-howto.html. I can run

the application fine if I do not precompile, but when I do attempt to 
precompile the JSP, I get the message: 

BUILD FAILED
/home/aaron/projects/cdquery/build.xml:307: java.lang.NoSuchMethodError: 
javax.servlet.ServletContext.getResourcePaths
(Ljava/lang/String;)Ljava/util/Set;

I am using Tomcat 5.0.30  Ant 1.6.2.
Does anyone have an idea what I should do? Below is my ant target XML.
Thanks,
Aaron

target name=jspc

taskdef classname=org.apache.jasper.JspC name=jasper2 
classpath id=jspc.classpath
pathelement location=${java.home}/../lib/tools.jar/
fileset dir=${catalina.home}/bin
include name=*.jar/
/fileset
fileset dir=${catalina.home}/server/lib
include name=*.jar/
/fileset
fileset dir=${catalina.home}/common/lib
include name=*.jar/
/fileset
/classpath
/taskdef

jasper2
validateXml=false
uriroot=${web.home}
webXmlFragment=${web.home}/WEB-INF/generated_web.xml
outputDir=${web.home}/WEB-INF/src /

/target


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JSP Precompilation

[Ramnish Kalsi]

I am trying to use jasper2 to pre-compile the JSPs as part of build process.
The compiler is complaining with the message:

ERROR - the file 'blah/blah/jsp' generated the following general exception:
java.lang.NullPointerException'

After spending some time, i realized that the jsp files which had invalid
usage of tags were the culprits.

The errors disappeared after tag cleaning. Now this error is only coming for
2 files, and i am positive that there is nothing wrong with tags. 

What could be other possible reasons ?

Is there any way of configuring the compiler to output detailed stacktrace,
if it fails at any jsp file compilation.

Tomcat version is 4.1.

thanks,
ramnish.


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