Problem with tracking Errors: Suspectious Try with missing catch... (ErrorLog and Source included)

[Sebastian Hagenbrock <se...@eventim.de>]

Hi,

please help me with the fallowing problem.

1.) Server:
I use a SuseLinux 7.2 Pro Server running Apache and Tomcat4 (JDK 1.3).

2.) Error Tracing:
First problem I have, is that it is really difficult to find out, in wich
lines the error is. Why? The linenumbers didn't match the linenumbers in the
source. I've inserted 2 Returns after a line, checked if the number changes.
If not, it must be before that line, else I test another location. This is
very frustrating, because some pages have more then 500 lines.

This is why I didn't find any suggestion for the fallowing error:

3.) What I've already tried:

Below this posting there are two parts: One includes the whole error msg.
The other one the Source Code.

Using the "InsertReturnMethod" i've described, i think that the error occurs
in line 5 to 7 of the SourceCode. The joke is, that even when I'm
uncommenting this part, the error still occurs (even after restarting
Tomcat). Even if I uncomment the complete try catch block beginning at line
14 doesn't take any effect.

4.) The JSP Error MSG:
_________________________
org.apache.jasper.JasperException: Unable to compile class for
JSPnull/usr/local/jakarta/work/localhost/_/jsp/admin/_0002fjsp_0002fadmin_00
02fsqlquery_jsp.java:228: 'catch' without 'try'.
        } catch (Throwable t) {
          ^
null/usr/local/jakarta/work/localhost/_/jsp/admin/_0002fjsp_0002fadmin_0002f
sqlquery_jsp.java:236: 'try' without 'catch' or 'finally'.
}
^
null/usr/local/jakarta/work/localhost/_/jsp/admin/_0002fjsp_0002fadmin_0002f
sqlquery_jsp.java:236: '}' expected.
}
 ^
3 errors

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:284)
at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:528)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
rvlet.java:176)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:188)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:458)
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:215)
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:2314)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
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
:163)
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:
1000)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1093
)
at java.lang.Thread.run(Thread.java:484)
____________________

5.) The Source:
____________________

 1: <%@page session="true" %>
 2: <% 	HttpSession sitzung = request.getSession(false);
 3:    java.sql.ResultSet res = null;
 4:	String isValidSession = (String)sitzung.getAttribute("isValidSession");
 5:	if(!(isValidSession == "true")){
 6:			response.sendRedirect(response.encodeURL("../main/login.jsp"));
 7:	} /*if(!(sitzung.getAttribute("isValid.... */
 8:
 9:
10:	intra.users.user usr = (intra.users.user)sitzung.getAttribute("usr");
11:	if(!usr.isAdmin()) {
12:		response.sendRedirect(response.encodeURL("../main/login.jsp"));
13:	}else{ /*if(!usr.isAdmin()) */
14:		try {  /*Did not make any different if this is commentet! The Error
still
15:				occours!*/
16:			intra.util.SQLVerbindung sql = new intra.util.SQLVerbindung();
17:			if(request.getParameter("mode") == "query") {
18:				res = sql.intraQuery(query);
19:			}else {
20:				succexec = sql.intraExecute(query);
21:			} /*if(request.getParameter("mode") == "query") */
22:		}catch(java.sql.SQLException sqle){
23:			errmsg = sqle.getMessage();
24:			err = true;
25:		}catch(Exception e){
26:			errmsg = errmsg + e.getMessage();
27:			err = true;
28:		} /*catch*/
29:		%>
..
..
136:       <%}%>
____________________

Did you know any suggestions, how to solve that??
Or even a small trick to trace errors more efficent?


YS

Sebastian Hagenbrock

PS. Sorry for my bad grammar and spelling.