Re: RE: using regexp in JSPs on Tomcat
- Original Message - From: PELOQUIN,JEFFREY (HP-Boise,ex1) [EMAIL PROTECTED] Date: Tuesday, December 24, 2002 2:56 pm Subject: RE: using regexp in JSPs on Tomcat hmmm, do you use RE at all in the init method of your class? Nope, not at all. also now that I look more carefully at the stack trace, you might try looking at the compiled java for the calling jsp page. From your stack trace the calling jsp page is viewSample.jsp, do you use any RE's in this jsp? No, I just instantiated that class and called the method. the compiled java code will be found within the $TOMCAT/work/servername/path/to/jsp the offending line will be 367, because of the use of a $ in the file name you may have trouble vi'ing or more'ing the file. I usaully ftp such files to a windows machine. Right, I looked at that java file, but the problem is the bulk of the entire generated class is one big Try block, and line 367 is just where the REException is thrown in the corresponding catch block. So the actual problem could be anywhere... The more I look at it, the more it seems to me like this is a potential Jasper bug. I hope I'm wrong... -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: RE: using regexp in JSPs on Tomcat
if this does not help, please send the .java source to your file.
%try{%
!-- Your jsp page here --
%
} catch (Throwable t)
{
%pre%
do
{
out.println(Exception (+t+) caused by (+t.getCause()+) stacktrace:);
t.printStackTrace(new java.io.PrintWriter(out));
if (t instanceof javax.servlet.jsp.JspException)
t=((javax.servlet.jsp.JspException)t).getRootCause();
else
t=t.getCause();
}
while (t!=null);
%/pre%
}
%
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On Wed, 25 Dec 2002, Albert Wang wrote:
- Original Message -
From: PELOQUIN,JEFFREY (HP-Boise,ex1) [EMAIL PROTECTED]
Date: Tuesday, December 24, 2002 2:56 pm
Subject: RE: using regexp in JSPs on Tomcat
hmmm, do you use RE at all in the init method of your class?
Nope, not at all.
also now that I look more carefully at the stack trace, you might try
looking at the compiled java for the calling jsp page. From your
stack trace
the calling jsp page is viewSample.jsp, do you use any RE's in
this jsp?
No, I just instantiated that class and called the method.
the compiled java code will be found within the
$TOMCAT/work/servername/path/to/jsp
the offending line will be 367, because of the use of a $ in the
file name
you may have trouble vi'ing or more'ing the file. I usaully ftp
such files
to a windows machine.
Right, I looked at that java file, but the problem is the bulk of the entire
generated class is one big Try block, and line 367 is just where the
REException is thrown in the corresponding catch block. So the actual
problem could be anywhere...
The more I look at it, the more it seems to me like this is a potential Jasper
bug. I hope I'm wrong...
--
To unsubscribe, e-mail: mailto:[EMAIL PROTECTED]
For additional commands, e-mail: mailto:[EMAIL PROTECTED]
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RE: using regexp in JSPs on Tomcat
Albert, The stack trace you show would imply that your class is indeed throwing the RESyntaxExeception. I would guess you class definition or class method allows the passing of the Exception to the invoking class, in this case Jasper. I would remove any Throws RESyntaxException from the class/method def and wrap a try/catch around the new RE() statement. If that does not seem applicable you may need to post the jsp and class code in question. Does the RE statement depend on any parameters passed to it from the JSP page? If it does you may need check for nulls before creating the RE. Jeff -Original Message- From: Albert Wang [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 24, 2002 11:10 AM To: [EMAIL PROTECTED] Subject: using regexp in JSPs on Tomcat Hi all, I have a Java class which uses the Jakarta regexp package for some string parsing. It works perfectly fine on its own. I'm developing a set of JSPs, one of which instantiates this class and calls some methods. However, Tomcat is throwing me the following exception: javax.servlet.ServletException: org/apache/regexp/RESyntaxException at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp l.java:471) at org.apache.jsp.viewSample$jsp._jspService(viewSample$jsp.java:367) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja va:201) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja va:243) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 66) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja va:190) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 66) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 ) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 66) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. java:170) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 64) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170 ) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 64) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java :174) at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 66) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java: 1027) at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125 ) at java.lang.Thread.run(Thread.java:484) As you can see, it's a regexp exception, but it's not my class that's throwing it, it's Jasper. When I do not instantiate this class of mine, the JSP displays perfectly. Is there some documented incompatibility with using regexp within JSPs on Tomcat? The only workaround I can think of is to use some other regular expression package that isn't used inherently within Tomcat. Any suggestions? Thanks for any help, -Al -- -- Albert Wang DDED Informatics Bristol-Myers Squibb Pharmaceutical Research Institute -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: using regexp in JSPs on Tomcat
Hi Jeff,
PELOQUIN,JEFFREY (HP-Boise,ex1) wrote:
Albert,
The stack trace you show would imply that your class is indeed throwing the
RESyntaxExeception.
I would guess you class definition or class method allows the passing of the
Exception to the invoking class, in this case Jasper.
I would remove any Throws RESyntaxException from the class/method def and
wrap a try/catch around the new RE() statement.
I'm pretty sure that's what I'm doing. Here is the particular method
that I'm calling, which is contained in a class called InternalLink:
public String parseDescription(String phrase)
{
String linkTypeDescription = getLinkType().getDescription();
String primaryEntityLabel = phrase + +
getPrimaryEntity().getId();
String secondaryEntityLabel = phrase + +
getSecondaryEntity().getId();
RE ent1Expression = null;
RE ent2Expression = null;
try {
ent1Expression = new RE(_ENT1_);
ent2Expression = new RE(_ENT2_);
} catch (org.apache.regexp.RESyntaxException e) {
throw new TrackerException(regexp problem);
}
linkTypeDescription =
ent1Expression.subst(linkTypeDescription, primaryEntityLabel);
linkTypeDescription =
ent2Expression.subst(linkTypeDescription, secondaryEntityLabel);
return linkTypeDescription;
}
Here's the offending little snippet of JSP code:
%
}
InternalLink[] sampleIntLinks = sample.getAllInternalLinks();
int numIntLinks = sampleIntLinks.length;
if(numIntLinks 0) {
%
h2Internal Links/h2
table border=1
tr
thDescription/th
thActions/th
/tr
%
Arrays.sort(sampleIntLinks);
for(int i = 0; i numIntLinks; i++) {
int linkId = sampleIntLinks[i].getId();
%
tr
td%=
sampleIntLinks[i].parseDescription(Sample) %/td
tda href =
deleteInternalLink.jsp?sampleId=%= idString %linkId=%= linkId
%delete/a/td
/tr
%
}
%
/table
Strangely enough, even if I don't call parseDescription() within the
JSP, I still get the exception as long as I just instantiate
InternalLink. Any clue what's going on here?
Thanks for the help, and happy holidays to all,
-Al
--
--
Albert Wang
DDED Informatics
Bristol-Myers Squibb Pharmaceutical Research Institute
--
To unsubscribe, e-mail: mailto:[EMAIL PROTECTED]
For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: using regexp in JSPs on Tomcat
hmmm, do you use RE at all in the init method of your class?
also now that I look more carefully at the stack trace, you might try
looking at the compiled java for the calling jsp page. From your stack trace
the calling jsp page is viewSample.jsp, do you use any RE's in this jsp?
the compiled java code will be found within the
$TOMCAT/work/servername/path/to/jsp
the offending line will be 367, because of the use of a $ in the file name
you may have trouble vi'ing or more'ing the file. I usaully ftp such files
to a windows machine.
javax.servlet.ServletException: org/apache/regexp/RESyntaxException
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp
l.java:471)
at org.apache.jsp.viewSample$jsp._jspService(viewSample$jsp.java:367)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
Jeff
-Original Message-
From: Albert Wang [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 24, 2002 11:45 AM
To: Tomcat Users List
Subject: Re: using regexp in JSPs on Tomcat
Hi Jeff,
PELOQUIN,JEFFREY (HP-Boise,ex1) wrote:
Albert,
The stack trace you show would imply that your class is indeed throwing the
RESyntaxExeception.
I would guess you class definition or class method allows the passing of
the
Exception to the invoking class, in this case Jasper.
I would remove any Throws RESyntaxException from the class/method def and
wrap a try/catch around the new RE() statement.
I'm pretty sure that's what I'm doing. Here is the particular method
that I'm calling, which is contained in a class called InternalLink:
public String parseDescription(String phrase)
{
String linkTypeDescription = getLinkType().getDescription();
String primaryEntityLabel = phrase + +
getPrimaryEntity().getId();
String secondaryEntityLabel = phrase + +
getSecondaryEntity().getId();
RE ent1Expression = null;
RE ent2Expression = null;
try {
ent1Expression = new RE(_ENT1_);
ent2Expression = new RE(_ENT2_);
} catch (org.apache.regexp.RESyntaxException e) {
throw new TrackerException(regexp problem);
}
linkTypeDescription =
ent1Expression.subst(linkTypeDescription, primaryEntityLabel);
linkTypeDescription =
ent2Expression.subst(linkTypeDescription, secondaryEntityLabel);
return linkTypeDescription;
}
Here's the offending little snippet of JSP code:
%
}
InternalLink[] sampleIntLinks = sample.getAllInternalLinks();
int numIntLinks = sampleIntLinks.length;
if(numIntLinks 0) {
%
h2Internal Links/h2
table border=1
tr
thDescription/th
thActions/th
/tr
%
Arrays.sort(sampleIntLinks);
for(int i = 0; i numIntLinks; i++) {
int linkId = sampleIntLinks[i].getId();
%
tr
td%=
sampleIntLinks[i].parseDescription(Sample) %/td
tda href =
deleteInternalLink.jsp?sampleId=%= idString %linkId=%= linkId
%delete/a/td
/tr
%
}
%
/table
Strangely enough, even if I don't call parseDescription() within the
JSP, I still get the exception as long as I just instantiate
InternalLink. Any clue what's going on here?
Thanks for the help, and happy holidays to all,
-Al
--
--
Albert Wang
DDED Informatics
Bristol-Myers Squibb Pharmaceutical Research Institute
--
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mailto:[EMAIL PROTECTED]
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mailto:[EMAIL PROTECTED]
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For additional commands, e-mail: mailto:[EMAIL PROTECTED]
