Compiler problems with J2EE

Hi,
I�am only new to the J2EE platform but have experience with J2SE. I have installed J2EE 1.4 and Tomcat server 5.0.28 to study for the Web Component Developer Exam.
When I go to compile my java files, the compiler doesn�t not recognise the J2EE parts of the file. I have imported the correct classes (even the import statements, it doesn�t recognise!) and when I compile, the errors are associated with J2EE classes (i.e. doesn�t recognise HttpServlet....)
I compile in command prompt by typing: javac myFile.java.
I am aware that the file servlet-api.jar is required for these J2EE extras when compiling and I think this is my problem. I have put the location of this file on my classpath (set classpath=.;C:\fileDir\servlet-api.jar) by it still fails to compile. I have also put this location of the file directly into my PATH by this doesnt help!
Can anybody help me out with this configuration problem?
Thanks very much for any help!

You need to have j2ee.jar (which can be found in <j2ee_install_dir>/lib directory in your classpath in order to successfully compile.

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Urgent! Serious problem with J2EE Classloader!

Hi all,
I'm having a serious problem with j2ee Classloading.
I have "inherited" a J2EE application where all business classes (invoked by the EJB) are placed in the Application's Server classpath (Weblogic 8.1.4).
Very bad because every time a class is changed the a.s. must be restarted.
So I re-enginereed the package putting the business classes in a jar that is referenced by the EJB's MANIFEST file.
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java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at irma.business.Dispatcher.callService(Dispatcher.java:70)
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at irma.business.service.LoginService.login(LoginService.java:79)
On the other hand they're found if I put the classes on the application server classpath.
Has anybody got advice for this ? Should I refactor the application giving up reflection ?
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Reflection uses the classloader as well so it should work fine.
A common cause of a NoClassDefFoundError is something in a parent classloader that refers to something only available in a child loader.
For instance, do you have any of your application classes which are in the $CLASSPATH but reference something that is only (now) in the business.jar in your ear?
-- Rob
-- Rob
WLS Blog http://dev2dev.bea.com/blog/rwoollen/

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Hi,
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No problem while using option -m32.
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SunOS snt5010 5.10 Generic_127111-11 sun4v sparc SUNW,SPARC-Enterprise-T5220
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############# foo5.cpp #############
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Compiation:
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// No problem
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"foo5.cpp", line 26: Error: An integer constant expression is required here.
"foo5.cpp", line 37: Where: While specializing "static_number_is_power_of_2<16>".
"foo5.cpp", line 37: Where: Specialized in non-template code.
"foo5.cpp", line 20: Error: An integer constant expression is required here.
"foo5.cpp", line 43: Where: While specializing "static_is_power_of_2<unsigned long, 17>".
"foo5.cpp", line 43: Where: Specialized in non-template code.
"foo5.cpp", line 26: Error: An integer constant expression is required here.
"foo5.cpp", line 44: Where: While specializing "static_number_is_power_of_2<17>".
"foo5.cpp", line 44: Where: Specialized in non-template code.
4 Error(s) detected.
Predefined macro:
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@ CC -m64 -xdumpmacros=defs foo5.cpp | & tee log64
@ diff log32 log64
7c7
< #define __TIME__ "09:24:58"
#define __TIME__ "09:25:38"20c20
< #define __sparcv8plus 1
#define __sparcv9 1[snipped]
=========================
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Thanks,
Alex Vinokur

Bug 6749491 has been filed for this problem. It will be visible at [http://bugs.sun.com] in a day or two.
If you have a service contract with Sun, you can ask to have this bug's priority raised, and get a pre-release version of a compiler patch that fixes the problem.
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[http://developers.sun.com/sunstudio/downloads/patches/]
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[svn:fx-trunk] 11707: Fix incremental compilation problem with styles.

Revision: 11707
Author:   [email protected]
Date:     2009-11-12 10:52:49 -0800 (Thu, 12 Nov 2009)
Log Message:
Fix incremental compilation problem with styles.
QE notes: None.
Doc notes: None.
Bugs: SDK-24173
Reviewer: Paul
Tests run: checkintests
Is noteworthy for integration: No.
Ticket Links:
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---------------------------cut----------------------------
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---------------------------cut----------------------------
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...jagruti
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