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Posted to users@tomcat.apache.org by Johannes Schmidt <to...@schmidt.net.au> on 2008/06/20 20:40:04 UTC
Getting Tomcat 6 to compile JSP with Java 1.6
Hello,
I have just spent 4+ hours trying to get Tomcat 6(.0.14) to compile my
JSPs with Java 1.6. I have googled, found some things and tried, but
have had no luck getting it to work.
I found a page with instructions on getting Tomcat 5.5 running with
Java 1.5 (a page linked to from several posts in the archives of this
list): http://blog.taragana.com/index.php/archive/how-to-run-javac-15-or-beyond-compiler-for-jsp-compilation-in-tomcat-55-with-generics-enabled-and-other-15-only-features/
I adapted the instructions for Tomcat 6. Here's what I did:
* Copy tools.java from $JAVA_HOME/lib to $CATALINA_HOME/lib
* Renamed jasper-compiler-jdt.jar to jasper-compiler-jdt.jar.old
* Installed the latest binary version of ANT
* Copied ant.jar from the Ant distribution to $CATALINA_HOME/lib
* Edited $CATALINA_HOME/conf/web.xml, so that the JSP servlet has the
compilerSourceVM and compilerTargetVM init parameters set:
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>compilerSourceVM</param-name>
<param-value>1.5</param-value>
</init-param>
<init-param>
<param-name>compilerTargetVM</param-name>
<param-value>1.5</param-value>
</init-param>
<init-param>
<param-name>xpoweredBy</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>
Furthermore, the Tomcat 6 Jasper How-To at
http://tomcat.apache.org/tomcat-6.0-doc/jasper-howto.html , in the
last paragraph of the "Configuration" section states that to use Ant
instead of the standard Eclipse JDT compiler, I need use the javac
argument to catalina.sh.
I have done this. However, whenever I try to get tomcat to compile a
JSP, I get errors -- it actually alternates (irregularly) between two
errors.
The relevant parts of the error messages (I'm including the full
errors at the bottom of this message, but for readability abbreviating
them here):
Error 1:
root cause
java.lang.NullPointerException
org.apache.jasper.compiler.AntCompiler.generateClass(AntCompiler.java:167)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
Error 2:
root cause
org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:600)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
In case it makes a big difference, I'm running:
* CentOS 4 (RHEL equivalent; 64-bit x86)
* jdk 1.6.0_02
* Tomcat 6.0.14 (as previously mentioned)
I doubt that it makes a difference, but I'm running Tomcat as a
service. The following environment variables are set before Tomcat is
started:
export JAVA_HOME=/usr/java/jdk1.6/
export CATALINA_HOME=/usr/local/tomcat
export CATALINA_OPTS="-javac"
export JRE_HOME=/usr/java/jdk1.6/
export ANT_HOME=/usr/local/ant
export PATH=${ANT_HOME}/bin:${PATH}:
As far as I can tell, I have followed all of the instructions correctly.
Can anybody suggest anything that
- I've done wrong, based on these instructions;
- is wrong with these instructions; and/or
- has nothing to do with these instructions, but might give me what I want?
In terms of Java 1.5 vs 1.6, I don't care which I get. I just want to
be able to use generics in my JSPs, since I'm using them in my
servlets, and want the JSPs to be able to handle them neatly.
Thanks very much if you bothered to read this far, and thanks in
advance for any help!
Hopefully someone will know what I need to do :-)
Cheers,
Johannes.
**********************************************************************
Full Error 1:
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: org.apache.jasper.JasperException:
Unable to load class for JSP
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:156)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
au.com.netek.clubs.servlet.Servlet.displayJSP(Servlet.java:128)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.photoList(ImageManagementServlet.java:656)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.doGetReal(ImageManagementServlet.java:176)
au.com.netek.clubs.servlet.DataStoreAccessServlet.doGetWrapped(DataStoreAccessServlet.java:93)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.admin.EnsureLoginServlet.doGetWrapped(EnsureLoginServlet.java:139)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:694)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:665)
org.apache.jsp.staffexec.photos.list_jsp._jspService(list_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
root cause
org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:600)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
au.com.netek.clubs.servlet.Servlet.displayJSP(Servlet.java:128)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.photoList(ImageManagementServlet.java:656)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.doGetReal(ImageManagementServlet.java:176)
au.com.netek.clubs.servlet.DataStoreAccessServlet.doGetWrapped(DataStoreAccessServlet.java:93)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.admin.EnsureLoginServlet.doGetWrapped(EnsureLoginServlet.java:139)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:694)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:665)
org.apache.jsp.staffexec.photos.list_jsp._jspService(list_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
root cause
java.lang.ClassNotFoundException: org.apache.jsp.common.display.Photos.list_jsp
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:598)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
au.com.netek.clubs.servlet.Servlet.displayJSP(Servlet.java:128)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.photoList(ImageManagementServlet.java:656)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.doGetReal(ImageManagementServlet.java:176)
au.com.netek.clubs.servlet.DataStoreAccessServlet.doGetWrapped(DataStoreAccessServlet.java:93)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.admin.EnsureLoginServlet.doGetWrapped(EnsureLoginServlet.java:139)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:694)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:665)
org.apache.jsp.staffexec.photos.list_jsp._jspService(list_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
note The full stack trace of the root cause is available in the Apache
Tomcat/6.0.14 logs.
Apache Tomcat/6.0.14
Full Error 2:
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: org.apache.jasper.JasperException:
Unable to load class for JSP
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:156)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
au.com.netek.clubs.servlet.Servlet.displayJSP(Servlet.java:128)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.photoList(ImageManagementServlet.java:656)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.doGetReal(ImageManagementServlet.java:176)
au.com.netek.clubs.servlet.DataStoreAccessServlet.doGetWrapped(DataStoreAccessServlet.java:93)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.admin.EnsureLoginServlet.doGetWrapped(EnsureLoginServlet.java:139)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:694)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:665)
org.apache.jsp.staffexec.photos.list_jsp._jspService(list_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
root cause
org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:600)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
au.com.netek.clubs.servlet.Servlet.displayJSP(Servlet.java:128)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.photoList(ImageManagementServlet.java:656)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.doGetReal(ImageManagementServlet.java:176)
au.com.netek.clubs.servlet.DataStoreAccessServlet.doGetWrapped(DataStoreAccessServlet.java:93)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.admin.EnsureLoginServlet.doGetWrapped(EnsureLoginServlet.java:139)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:694)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:665)
org.apache.jsp.staffexec.photos.list_jsp._jspService(list_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
root cause
java.lang.ClassNotFoundException: org.apache.jsp.common.display.Photos.list_jsp
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:598)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.Servlet.displayJSPDirect(Servlet.java:118)
au.com.netek.clubs.servlet.Servlet.displayJSP(Servlet.java:128)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.photoList(ImageManagementServlet.java:656)
au.com.netek.clubs.servlet.admin.ImageManagementServlet.doGetReal(ImageManagementServlet.java:176)
au.com.netek.clubs.servlet.DataStoreAccessServlet.doGetWrapped(DataStoreAccessServlet.java:93)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
au.com.netek.clubs.servlet.admin.EnsureLoginServlet.doGetWrapped(EnsureLoginServlet.java:139)
au.com.netek.clubs.servlet.Servlet.doGet(Servlet.java:63)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:694)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:665)
org.apache.jsp.staffexec.photos.list_jsp._jspService(list_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
note The full stack trace of the root cause is available in the Apache
Tomcat/6.0.14 logs.
Apache Tomcat/6.0.14
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RE: Getting Tomcat 6 to compile JSP with Java 1.6
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: Johannes Schmidt [mailto:tomcat@schmidt.net.au]
> Subject: Re: Getting Tomcat 6 to compile JSP with Java 1.6
>
> Again, apologies for the time wasting (believe me, I really am sorry
> that I wasted so much time -- I've been up all night -- it's almost 6
> am here now).
No apologies necessary. I think we've all been in that place...
- Chuck
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Re: Getting Tomcat 6 to compile JSP with Java 1.6
Posted by Johannes Schmidt <to...@schmidt.net.au>.
2008/6/21 Caldarale, Charles R <Ch...@unisys.com>:
>> From: Johannes Schmidt [mailto:tomcat@schmidt.net.au]
>> Subject: Getting Tomcat 6 to compile JSP with Java 1.6
>>
>> I have just spent 4+ hours trying to get Tomcat 6(.0.14) to compile my
>> JSPs with Java 1.6. I have googled, found some things and tried, but
>> have had no luck getting it to work.
>
> I think you're trying too hard. Tomcat 6 compiles JSPs using 1.5 syntax right out of the box, with no changes. You don't need to rename anything, configure anything, or toss the magic crystals anywhere. I'd suggest starting over with a clean Tomcat installation and see if it works before you start changing things.
>
Well, aren't I quite the idiot? Sorry for wasting your time, but
thanks very much for responding! Goes to show I shouldn't do these
things when I'm exhausted.
I've reverted to the standard configuration.
I've also just realised that the original error that sparked my
ill-founded investigation had nothing to do with generics, except
insofar as I removed a bunch of casts when I updated some HashMaps to
use generics, and in the process accidentally removed a cast from a
request.getAttribute() call.
Again, apologies for the time wasting (believe me, I really am sorry
that I wasted so much time -- I've been up all night -- it's almost 6
am here now).
Next time I'll sleep first, and ask questions the next day, if I still
can't solve them.
Cheers,
Johannes.
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RE: Getting Tomcat 6 to compile JSP with Java 1.6
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: Johannes Schmidt [mailto:tomcat@schmidt.net.au]
> Subject: Getting Tomcat 6 to compile JSP with Java 1.6
>
> I have just spent 4+ hours trying to get Tomcat 6(.0.14) to compile my
> JSPs with Java 1.6. I have googled, found some things and tried, but
> have had no luck getting it to work.
I think you're trying too hard. Tomcat 6 compiles JSPs using 1.5 syntax right out of the box, with no changes. You don't need to rename anything, configure anything, or toss the magic crystals anywhere. I'd suggest starting over with a clean Tomcat installation and see if it works before you start changing things.
> http://blog.taragana.com/index.php/archive/how-to-run-javac-15-or-beyond-compiler-for-jsp-compilation-in-tomcat-55-with-generics-enabled-and-other-15-only-features/
Note the date on that blog entry: it's over three years old, and pretty much completely irrelevant now. It did have meaning with the early releases of 5.5, but reality bypassed it long ago.
- Chuck
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