OC4J infinity loop in javac.exe compiling JSP

Hi,
i have a very strange problem with OC4J 10.1.3.5.0 and one JSP page. It occurs under Windows/OC4J (dev environment) and under Linux/OAS (in production environment).
I try to explain as best as possible.
I have an application running OK in OC4J. In this application I have a simple JSP that contains very little java code, like this:
<%@ include file="/wtn/gen/checkAccess.jsp" %>
<%@page info="mySite.com"
 language="java"
 errorPage="/wtn/gen/error.jsp"
 import="java.util.Locale,
 com.mySite.util.Util,
 com.mySite.Const,
 com.mySite.LoginBussines"%>
<%
 boolean b1 = LoginBussines.isB1(request) ? true : false;
 String domain = LoginBussines.getDomain(request);
 String url = "";
 if (b1) {
 url = "/web/" + locale + "/home.html";
 } else {
 url = "/web/" + locale + "/index.html";
%>
<html>
<head>
 <title>JSP Page</title>
 <% out.println("<meta http-equiv='REFRESH' content='0;url=http://" + domain + url + "' />"); %>
</head>
<body>
</body>
</html>Well, this JSP don't have any error and it works fine normally.
Problem ocurred:
When I delete the precompiled JSP from persistence/_pages for force .java generation and re-compilation, OC4J generate .java correctly and launch a javac.exe process for compile the servlet .java. This compilation through javac.exe don't finish, remain permanent running and the compilation of JSP does not finish.
The web application remain sleep while javac.exe process perform ghost operations. Finally (after 5 minuts aprox.) the OC4J stop waiting and show blank page.
The javac.exe remains alive in Operating System.
*(strange) Cause:*
I know the cause but I find no explanation :-(...
The cause is the import of com.mySite.LoginBussines. This class is correctly (compiled by Eclipse and Ant) and run OK when is called from a servlet or another class running in OC4J. But when this class is imported in a JSP, the javac go crazy and remain try to compile permanently...
*(very strange) Workaround:*
When I delete any code line of this class (one or more, no matter), arbitrary line of any method in this Class, recompile class and try again, it's work fine!
NOTE: the size of LoginBussines.class it's around 66.897 bytes. I don't know if it's relevant.
Please, someone know what's going on? Someone has encountered this problem?
Thank you so much!
Edited by: 890752 on 11-oct-2011 4:40
Edited by: 890752 on 11-oct-2011 6:08

Robert,
It appears that you have only installed the Java Runtime Environment (JRE). You need to install the Software Development Kit (SDK). Get version 1.4.2_05, since this is what your version of OC4J requires. Go to the following Web page
http://java.sun.com/j2se/1.4.2/download.html
And look for the "Download J2SE SDK" link -- which appears below the heading:
J2SE v 1.4.2_05 SDK
Good Luck,
Avi.

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Hi
 "> compileCommand=D:/weblogic/jre1_2/jre/bin/javac.exe,\"
 Check this line in your properties file. Are you sure javac.exe resides
 inside the jre? As far as I know, it doesn't resides there by default. It
 shd be inside ur c:\jdk1.2.2\bin or wherever u installed your jdk directory.
 cheers,
 keith
 DJ <[email protected]> wrote in message news:[email protected]...
 > I am using WLS 5.1 with jsp configuration in weblogic.properties file as:
 >
 > weblogic.httpd.register.*.jsp=\
 > weblogic.servlet.JSPServlet
 > weblogic.httpd.initArgs.*.jsp=\
 > pageCheckSeconds=1,\
 > compileCommand=D:/weblogic/jre1_2/jre/bin/javac.exe,\
 > workingDir=D:/weblogic/myserver/classfiles,\
 > verbose=true
 >
 > I copy all examples files to myserver's document root,
 > /weblogic/myserver/pub_html. I then run WLS and go to
 > http://localhost:7001/examples/jsp/index.html to click run link for
 > HelloWorld.jsp. I get Error 500--Internal Server Error:
 >
 > From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
 > 10.5.1 500 Internal Server Error
 > The server encountered an unexpected condition which prevented it from
 > fulfilling the request.
 >
 > I also get the error in weblogic.log as below:
 >
 >
 > Mon Aug 07 11:29:29 CDT 2000: <WebLogicServer> WebLogic Server started
 > Mon Aug 07 11:29:41 CDT 2000: <ListenThread> Adding address:
 > localhost/127.0.0.1 to licensed client list
 > Mon Aug 07 11:29:41 CDT 2000: <NT Performance Pack> Allocating: '2' NT
 > reader threads
 > Mon Aug 07 11:29:41 CDT 2000: <ServletContext-General> file: init
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: init
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > verbose initialized to: true
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > packagePrefix initialized to: jsp_servlet
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > compileCommand initialized to: D:/weblogic/jre1_2/jre/bin/javac.exe
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > srcCompiler initialized to weblogic.jspc
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > superclass initialized to null
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > workingDir initialized to: D:\weblogic\myserver\classfiles
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp: param
 > pageCheckSeconds initialized to: 1
 > Mon Aug 07 11:29:45 CDT 2000: <ServletContext-General> *.jsp:
 > initialization complete
 > Mon Aug 07 11:29:46 CDT 2000: <ServletContext-General> Generated java
 > file:
 >
 D:\weblogic\myserver\classfiles\jsp_servlet\_examples\_jsp\_helloworld.java
 > Mon Aug 07 11:29:46 CDT 2000:<E> <ServletContext-General> Compilation of
 >
 D:\weblogic\myserver\classfiles\jsp_servlet\_examples\_jsp\_helloworld.java
 > failed: java.io.IOException: CreateProcess:
 > D:/weblogic/jre1_2/jre/bin/javac.exe -classpath
 >
 D:\weblogic\myserver\serverclasses;D:\orant\jdbc\lib\classes12.zip;D:\hitjdb
 >
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 >
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 >
 blogic\license;D:\weblogic\classes;D:\weblogic\myserver\serverclasses;D:\web
 >
 logic\lib\weblogicaux.jar;D:\weblogic\myserver\servletclasses;D:\weblogic\my
 > server\classfiles -d D:\weblogic\myserver\classfiles
 >
 D:\weblogic\myserver\classfiles\jsp_servlet\_examples\_jsp\_helloworld.java
 > error=2
 > at java.lang.Win32Process.create(Native Method)
 > at java.lang.Win32Process.<init>(Win32Process.java:64)
 > at java.lang.Runtime.execInternal(Native Method)
 > at java.lang.Runtime.exec(Runtime.java:272)
 > at java.lang.Runtime.exec(Runtime.java:219)
 > at weblogic.utils.Executable.exec(Executable.java, Compiled Code)
 > at weblogic.utils.Executable.exec(Executable.java:88)
 > at
 >
 weblogic.utils.compiler.CompilerInvoker.compileMaybeExit(CompilerInvoker.jav
 > a, Compiled Code)
 > at
 > weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:202)
 > at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java, Compiled Code)
 > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:174)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:16
 > 4)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > :99)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > :123)
 > at
 >
 weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
 > l.java:742)
 > at
 >
 weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
 > l.java:686)
 > at
 >
 weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
 > Manager.java:247)
 > at
 >
 weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
 > at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
 > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
 >
 > java.io.IOException: Compiler failed
 >
 executable.exec([Ljava.lang.String;[D:/weblogic/jre1_2/jre/bin/javac.exe, -c
 > lasspath,
 >
 D:\weblogic\myserver\serverclasses;D:\orant\jdbc\lib\classes12.zip;D:\hitjdb
 >
 c400;D:\weblogic\jre1_2\jre\lib\rt.jar;D:\weblogic\jre1_2\jre\lib\i18n.jar;D
 >
 :\weblogic\classes\boot;D:\weblogic\eval\cloudscape\lib\cloudscape.jar;D:\we
 >
 blogic\license;D:\weblogic\classes;D:\weblogic\myserver\serverclasses;D:\web
 >
 logic\lib\weblogicaux.jar;D:\weblogic\myserver\servletclasses;D:\weblogic\my
 > server\classfiles, -d, D:\weblogic\myserver\classfiles,
 >
 D:\weblogic\myserver\classfiles\jsp_servlet\_examples\_jsp\_helloworld.java]
 > )
 > at
 >
 weblogic.utils.compiler.CompilerInvoker.compileMaybeExit(CompilerInvoker.jav
 > a, Compiled Code)
 > at
 > weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:202)
 > at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java, Compiled Code)
 > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:174)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:16
 > 4)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > :99)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > :123)
 > at
 >
 weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
 > l.java:742)
 > at
 >
 weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
 > l.java:686)
 > at
 >
 weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
 > Manager.java:247)
 > at
 >
 weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
 > at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
 > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
 >
 > Mon Aug 07 11:29:46 CDT 2000:<E> <ServletContext-General> Servlet failed
 > with Exception
 > java.lang.NumberFormatException: error=2
 >
 > at java.lang.Integer.parseInt(Integer.java, Compiled Code)
 > at java.lang.Integer.parseInt(Integer.java:458)
 > at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java, Compiled Code)
 > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:174)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:16
 > 4)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > :99)
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > :123)
 > at
 >
 weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
 > l.java:742)
 > at
 >
 weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
 > l.java:686)
 > at
 >
 weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
 > Manager.java:247)
 > at
 >
 weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
 > at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
 > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
 >
 > It looks like all my jsp are not running. How can I fix this problem?
 >
 > Thanks a lot
 >
 > DJ
 >
 >

Problems compiling jsps using WLS6.1sp3 as Win2k service

Two related issues:
Issue #1:
I'm encountering an error where the javac compiler cannot be found (when
trying to compile jsps) when running as a Windows Service. JAVA_HOME is set
in the profile and I'm passing in E:\bea\jdk131\bin in the extrapath
parameter of beasvc.exe. The error I get is a file permission exception -
unable to access (read) C:\WINNT\System32\javac. Question is - why is it
looking there and not in JAVA_HOME? To try and isolate this, I've removed
everything from the PATH and CLASSPATH environment variables except for
E:\bea\jdk131\bin but to no avail.
Issue #2:
I've also tried hard-coding the location E:\bea\jdk131\bin\javac.exe into
the config.xml and weblogic.xml. The error is then a file permission
exception - unable to access (read) .\E:\bea\jdk131\bin\javac. Note the
initial dot-slash... however, the weblogic.policy file is set to allow
read,execute access for all files and directories below E:\bea (I've even
tried to grant a permission to .\E:\....... but that didn't work either)
Hope someone can help - it's been driving me nuts for a week now! What do I
need to do to get Weblogic to find javac when running as a Windows Service?

Hi Sudha
Plese see the error in the starting post. Do u agree with me now? The server is looking for org.apache.jsp.techSupport_jsp class.
Generated servlet error:
[javac] Compiling 1 source file
D:\MANTRA\jboss-3.0.4_tomcat-4.1.12\tomcat-4.1.x\work\M
inEngine\localhost\JSPTechSupport\techSupport_jsp.java:
2: cannot resolve symbol
symbol : class TechSupportBean
location: class org.apache.jsp.techSupport_jsp
TechSupportBean techSupportBean = null;
^
An error occurred at line: 2 in the jsp file:
/techSupport.jsp
Generated servlet error:
D:\MANTRA\jboss-3.0.4_tomcat-4.1.12\tomcat-4.1.x\work\M
inEngine\localhost\JSPTechSupport\techSupport_jsp.java:
4: cannot resolve symbol
symbol : class TechSupportBean
location: class org.apache.jsp.techSupport_jsp
techSupportBean = (TechSupportBean)
rtBean) pageContext.getAttribute("techSupportBean",
PageContext.APPLICATION_SCOPE);
^Take care.
Hafizur Rahman
SCJP

Tomcat can't compile JSP

Hi,
I'm using Ecliple 2.1 with JBOSS 3.2.2 and Tomcat 4.1.24 on XP
I can separately run JBOSS+Tomcat from command prompt, but when i start them from Eclipse, Tomcat fails to compile very first JSP. (Internal error). From examining error stack trace i see that tomcat tries to create process "javac.exe" with too lengthy classpath. It seems that the classpath is getting truncated.
Has anybody had similar problem?
Thanks in advance,
Leonid.

i guess it is not the too lengthy classpath...
just chek that when u run the application from eclipse.. r u seting the classpath.. and that classpath should not have any spaces in it..
for ex: a directory like c:\program files \ should be as c:\progra~1\..
ot any jar file in the classpath has spaces...
this may be one of the reason that the classpath gets truncated...

J2EE app server not able to compile JSP

Hi,
I have just installed J2EE app server and am trying to deploy a JSP. The following error is generated. can anyone help me please.
Thank you,
Deepika.
org.apache.jasper.JasperException: Unable to compile class for JSP
No Java compiler was found to compile the generated source for the JSP.
This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK
to the common/lib directory of the Tomcat server, followed by a Tomcat restart.
If using an alternate Java compiler, please check its installation and access path.
 org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:127)
 org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:348)
 org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:424)
 org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
 org.apache.jasper.compiler.Compiler.compile(Compiler.java:448)
 org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:551)
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:300)
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 java.lang.reflect.Method.invoke(Method.java:324)
 org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:284)
 java.security.AccessController.doPrivileged(Native Method)
 javax.security.auth.Subject.doAsPrivileged(Subject.java:500)
 org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:306)
 org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:200)

This is a known issue.
Here's an explanation of the behaviour you are seeing:
The misleading error message is printed only in the case where a javac
compilation error line number cannot be mapped back to a line number
in the JSP source code.
The internal representation of a JSP element ("JSP node") in the JSP compiler
contains the following info:
- The begin line number of the JSP element in the JSP page
- The begin and end line numbers ("range") of the Java code that was
generated for the JSP element
When attempting to map a javac error line number back to the JSP
source line, we determine the range into which the javac error line
number falls, and retrieve the JSP source number of the JSP element
associated with that range.
However, in some cases, it is impossible to trace a javac error line
number back to the JSP element that caused the error. For example,
consider the following scriptlet:
<%
String query = request.getParameter("query");
if(query != null) {
out.println(query);
} else {
out.println("(null)");
// } // <-- !Missing brace syntax error
%>
Since the JSP compiler wraps the generated code into a
try-catch-finally block, the above syntax error in the scriptlet
causes havoc with that try-catch-finally block, and results in 3 javac
errors:
<file>jsp.java:<line1>: 'catch' without 'try'
} catch (Throwable t) {
^
<file>jsp.java:<line2>: 'try' without 'catch' or 'finally'
try {
^
<file>jsp.java:<line3>: '}' expected
Notice that all of the above javac error numbers are outside the range
of the java line numbers corresponding to the scriptlet that caused the
error, and therefore cannot be mapped back to any line numbers in the
JSP page source.
AS 8.0 PE does not handle this case correctly, and prints out the
misleading error message (though the real error message can be found
in the server log).
Notice that this problem is going to be fixed in AS 8.1, so that if a
javac error line number cannot be mapped back to a JSP page line
number, the javac error is still returned to the client.
In AS 8.0 PE, you need to check your server log to find out why the compilation failed.
If you still have any problems, send me your JSP, and I will take a look at it.
Thanks,
Jan

Can't find Javac.exe

I'm new to Java (presently taking a class). I'm very confused and not getting too far. I'm running Win XP and have downloaded the latest version of Java J2SE1.4.0_01 (actually because of repeated problems, I've uninstalled and installed it a few times).
I can't find javac.exe anywhere on my c drive. I read a past forum posting describing the same problem which suggests downloading the latest version of SDK1.4. Isn't this what I have been downloading? Where can I find this download? If it isn't what I've been downloading, why do I need both and how would I have known this? I understand how to set the path once I get javac.exe but I'm becoming frustrated trying to obtain this file and move forward with my study of java. Thanks for the help.

If you need only to run a java application then you just need a JRE (Java Runtime Enviorment ). It contains everything that you wanted to run it.
But, if you want to develop some java application , then you needs something more... you need to have to compile those source files first... For this what you want is a SDK (Software development Kit)... Both is free.. You can download the 1.4sdk from http://java.sun.com/Download6
After downloading and installing it, set the path corectly to include the bin directory of the installed folder..
Hope it helped
appu

Javac.exe 1.4 is not finding user classes!!

! HELP !
Okay, I've used -classpath, i've messed around a bit with my settings, but for some reason, I can't get java to compile my code on my machine!!! I know it works, because I made and compiled it on machines on my school's account.
THE problem:
javac.exe keeps telling me that all of my own class objects are unresolved symbols, yet they ALL exist! and they are in the same directory! This happens with any outside class object reference in any class except Sun's predefined SDKs.
What the heck do I do?

well well... Am I under the stupidly mistaken impression that the Platform kit is not the same as the Software Development kit?
I think I am...I am going to download the 1.31a sdk, and if it works, then I'm going to slap myself. hard. REALLY hard. :) GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRack!ACKACKACKACKACKACKACKACKACKACKACKACK!

Javac.exe

I am running Windows Server 2003 box (work related reasons). I use TextPad 4.7.3 for my editor. When I went to compile a java program it came back with the error:
C:\WINDOWS\SYSTEM32\javac.exe
The window cannot find the filed specified
I have tried to re-install but no luck, any suggestions?

Did you actually install the JDK/SDK or did you just install the runtime?
If you installed the JDK/SDK then add the bin where javac is to your PATH.

Javac.exe ERROR

I am using JDK 1.2 and when I try to compile HelloWorld. Java using javac HelloWorld.java its pops up a window that says javac.exe has encountered a problem and needs to close. Any ideas on what the problem might be. Thanks!

No. Is there a reason why you're using such an old version of Java?
If not, possibly the easiest and quickest resolution would be to download and install a current version, either 1.4.2_06 or 1.5.0
There have been many improvements that might eliminate the problem.

OC4J infinity loop in javac.exe compiling JSP

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