OC4J: error compiling intro.java

I've got Oracle9i db (9.2.0.1) & OC4J 9.0.3 installed on Windows 2000 for development. OC4J is installed in E:\oracle\ora90\oc4j, J2EE_HOME is identified as E:\oracle\ora90\oc4j\j2ee\home. I've installed JDK 1.3.1.
I've got a file 'intro.java' that I've got located in E:\oracle\ora90\oc4j\j2ee\home\default-web-app\WEB-INF\classes. It's only intended as an example file, like HelloWorld:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Intro extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
     throws IOException, ServletException {
     response.setContentType("text/html");
     PrintWriter out = response.getWriter();
          out.println("<html>");
          out.println("<head>");
          out.println("<title>Oi!</title>");
          out.println("</head>");
          out.println("<body>");
          out.println("Oi!");
          out.println("</body>");
          out.println("</html>");
If I open a command line, cd to E:\oracle\ora90\oc4j\j2ee\home\default-web-app\WEB-INF\classes & input 'javac intro.java' I get the following errors:
intro.java:2: package javax.servlet does not exist
import javax.servlet.*;
^
intro.java:3: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
etc.
I get the impression it's not OC4J - if I go to http://oracle:8888/servlet/HelloWorldServlet, I get the intended output. I would be grateful for further info on this issue..

Okay, thank you.
I've not included it yet - I wonder if there's an overall, inclusive CLASSPATH I ought to have in Environment Variables for what I've got installed (Oracle9i 9.2.0.1, OC4J 9.0.3 on Windows 2000), or is it optimal to include this in the command line by itself only when I'd like to compile instead?
Only info I've found on this is in the OC4J User's Guide, which implies it is okay to identify no classpath. Obviously, I guess this would be incorrect in my case..

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^
/oa/form/appDB/comn/java/oracle/apps/cz/cx/tso/util/ApplicationModuleHelper.java:114: cannot resolve symbol
symbol : variable ValueSetSqlHelper
location: class oracle.apps.cz.cx.tso.util.ApplicationModuleHelper
String ret = ValueSetSqlHelper.assembleSql(select.toString(),
^
12 errors
1 warning
thx
Dan
Message was edited by:
user535835

Im surprised that you've got the error only in the usage and not at the import. You must check if your jre and classpath contains the jsdk, servlet dev kit configured properly.

Error while compiling PricingUserExits.Java on IPC Server

Hi,
While compiling PricingUserExits.Java on IPC Server, I am getting "cannot resolve symbol" error for class object.
Can anyone reply back procedure of how to complie this Java Program and neccessary steps....
Thank you for support.
Regards,
Sameer

Dear Andrew,
Thanks for reply.
As per our understanding, after compilation of java file we get class file.
While compilation we are getting following error:
On DOS Prompt:
E:\usr\sap\ipc\lib\userexits>javac PricingUserExits.java
PricingUserExits.java:172: cannot resolve symbol
symbol : class FormulaNotImplementedException
location: class userexits.PricingUserExits
                                throw new FormulaNotImplementedException(prItem,
"group key formula", keyFormNo);
                                          ^
PricingUserExits.java:195: cannot resolve symbol
symbol : class FormulaNotImplementedException
location: class userexits.PricingUserExits
                                throw new FormulaNotImplementedException(prItem,
"copy formula", copyFormulaNo);
                                          ^
Please reply back which IPC Java libraries are required and what is the path.
If you have any documentation related to it then please email it to [email protected]
Regards,
Sameer

Error while compiling VO java files

I am getting following error while compiling VO java class in my instance
Exception in thread "main" java.lang.ClassFormatError: com.sun.tools.javac.main.Main (erroneous method access flags)
at JvClassReader.throw_class_format_error(byte) (/usr/lib/libgcj.so.5.0.0)
at JvClassReader.handleMethod(int, int, int, int) (/usr/lib/libgcj.so.5.0.0)
at JvClassReader.read_methods() (/usr/lib/libgcj.so.5.0.0)
at JvClassReader.parse() (/usr/lib/libgcj.so.5.0.0)
at JvDefineClass(java.lang.Class, byte[], int, int) (/usr/lib/libgcj.so.5.0.0)
at java.lang.VMClassLoader.defineClass(java.lang.ClassLoader, java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.5.0.0)
at java.lang.ClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.5.0.0)
at java.security.SecureClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.CodeSource) (/usr/lib/libgcj.so.5.0.0)
at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
at gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.5.0.0)
at JvFindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
at JvBytecodeVerifier.verify_instructions_0() (/usr/lib/libgcj.so.5.0.0)
at JvVerifyMethod(_Jv_InterpMethod) (/usr/lib/libgcj.so.5.0.0)
at JvPrepareClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
at JvWaitForState(java.lang.Class, int) (/usr/lib/libgcj.so.5.0.0)
at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
at gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.5.0.0)
at JvThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.5.0.0)
at JvRunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.5.0.0)
at __libc_start_main (/lib/tls/libc-2.3.4.so)
Please advise me to get rid of this one.
-- Manoj
Edited by: 856261 on May 4, 2011 12:55 AM

I created custom VO and files in my local JDev and it is working properly.
I wanna migrate it to actual instance.So my question is is it mandatory to compile custom java file in application server or i can use same which i used in my local machine(windows)?
-- Manoj

Error when compiling the Java file

Hi I have created a jsp program that uses the java files. i have jboss installed. when i compile the java file it gives compilation error saying that javax.servlet.jsp.tagext.TagSupport not found.
Although when i installed the Tomcat seperately i did not get any compilation error. can anyone tell me how to get out of this problem when Tomcat is not installed seperately.
Thanks,
Rakesh

Hi
I think these errors are due to incorrect classpath settings.While compiling HelloHome ..Helloremote must be in classpath.Also if u have packaged them u must be in the package root during compilation ie if uor remote & home interface is in a package called "ejbserver"
then while compiling u must be in the folder above ejbserver & compile command is
javac .\ejbserver\*.java
If uor home & remote interface is in different folder check wheather u have imported the remote interface inside home interface file.

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