Help for documentation about jsp and tomcat

Hello
This is realy very urgent for me!!Does anuone can help me.
There is my problem .I nead books (hypperlink) for jsp or tomcat.
who made it why and how does it looks.I am writeing documenation for my project and i have to finish it very soon.I found some tutorials btu it is noy enough if you know for something better i would be vry gratefull.
By

Hi,
I agree, the basic documentation at the jakarta site is good, but needs a little polishing/updating.
Use google to do a search, and wade through loads of stuff before coming up with the answers, or this site is pretty good too!!!!!
Unfortunately, all the answers are not always forthcoming until you know which questions to ask (or the relevant words to enter into a search engine).
best
kev

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Help running a simple jsp file,Tomcat 5.0.16

Hi,
This question may be addressed many many times,but do reply.
I have a Win xp operating system
Installed Tomcat 5.0.16 in it.
Next the directory structure
PS : The sampleapp directory is outside the tomcat installation directory.
E:/sampleapp
| |
ROOT WEB-INF
|
classes
|
<package1><structure> .class files (for servlet works fine!!!!)
in the WEB-INF,there is the web.xml,then sourcefiles<dir> and the lib directory which is empty.
Now the servlet files work fine.........
I have placed my MyJsp.jsp file in the above mentioned ROOT directory.
I have not done any thing with the <TOMCAT_HOME>/conf/server.xml file
and the web.xml which I have written.
When I give the following URI
http://localhost:8080/sampleapp/MyJsp.jsp,
I get the HTTP status 404- /MyJsp.jsp
description: The requested resource (/MyJsp.jsp) is not available.
Hoping that I have defined the problem specifically.Kindly show some light on this.
Thanks
AS

Nevermind. I just found the answer. For the record, there are two ways in getting JSPs to work:
1. Precompiling the JSPs and modifying your webapp's web.xml file with the XML fragment generated in YourWebApp/web/WEB-INF/generated_web.xml;
2. Not precompiling the JSPs, but simply letting tomcat compile it on the fly on first access.
PRECOMPILATION METHOD
Go to http://jakarta.apache.org/tomcat/tomcat-5.0-doc/jasper-howto.html. Copy-and-paste the ant script under the section "Web Application Compilation" into a file called compile.xml. For me, I save it in ~/development/compile.xml. Then compile the JSPs using the command (all in a single line):
$ANT_HOME/ant -file <PATH_TO_COMPILE.XML> -Dtomcat.home=<$TOMCAT_HOME> -Dwebapp.path=<$WEBAPP_PATH>
In my case, I cd into the directory where my app resides:
cd ~/development/HelloWorld
and then I type:
ant -file ~/development/compile.xml -Dtomcat.home=/var/tomcat5 -Dwebapp.path=.
(Note the trailing dot since my current directory is my webapp's directory itself. Also, in my case, my shell's PATH contains the path to the ant executable, so I just type 'ant' directly.)
Open the file ~/development/HelloWorld/web/WEB-INF/generated_web.xml and follow the instructions in that auto-generated file, which is: "Place this fragment in the web.xml before all icon, display-name, description, distributable, and context-param elements."
The web.xml referred to above is YOUR web.xml. In my case, it is the one in ~/development/HelloWorld/web/WEB-INF/web.xml
When ready to deploy, type:
ant dist
as usual. Deploy the .war file in the dist directory as you normally would. In my case, I do:
rm -rf $CATALINA_HOME/webapps/hello* (removes my HelloWorld webapp directory and its war file)
cp ~/development/HelloWorld/dist/hello.war $CATALINA_HOME/webapps
and wait for tomcat to unravel the war file. I can then access the JSP page based on whatever the generated_web.xml had specified. In my case, it would be http://localhost:8080/hello/sample.jsp
NON-PRECOMPILATION METHOD
Copy tools.jar from the Java JDK into tomcat's common/lib. (I found this only in the error message in tomcat's log file!! Didn't find it anywhere else!!). Do this one time only, then restart tomcat:
cp $JAVA_HOME/lib/tools.jar $CATALINA_HOME/common/lib
Restart tomcat.
Deploy your webapp as usual which will include your JSP files stored under your webapp's 'web' directory. No precompilation of JSPs is required. Then access your JSP pages such as http://localhost:8080/HelloWorld/my-jsp-page.jsp and tomcat will compile it on the fly on first access. The disadvantage is that there will be a slight delay on first access.
[Note: I am putting all this down for the record, because it took me MANY HOURS to figure all this out as the info on how to do this is not found clearly in one place!! Hope this helps others.]
My next step is to incorporate the contents of compile.xml as mentioned above, into my regular build.xml file.

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Does anyone know of such a document?
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surya

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http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/EJBConcepts3.html
http://otn.oracle.com/sample_code/tech/java/codesnippet/j2ee/ejbbestpractices/ejb-best.html#pattern
http://java.sun.com/webservices/docs/1.0/tutorial/doc/JSPIntro.html
http://java.sun.com/j2ee/1.4/docs/tutorial/doc/index.html
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JSP and Tomcat Problem

Folks,
My apologies if this is off-topic for this forum, but I've been having this problem using Tomcat and JSP. I'm fairly new to Java.
Basically, I'm writing a webapp that uses servlets and JSP together. The servlet and backend classes all compile fine. Now, basic frontend page is called Console.jsp, and one of the commands that it runs is <%@ page import="DJUser">
Here's the problem: Console.jsp is in $CATALINA_HOME/webapp/
DJUser (and the rest of the classes I'm using) are in $CATALINA_HOME/webapp/WEB-INF/classes
When I attempt to run Console.jsp I get this error:
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
The import DJUser cannot be resolved
An error occurred at line: 9 in the jsp file: /Console.jsp
Generated servlet error:
DJUser cannot be resolved to a type
An error occurred at line: 11 in the jsp file: /Console.jsp
Generated servlet error:
user cannot be resolved
An error occurred at line: 11 in the jsp file: /Console.jsp
Generated servlet error:
DJUser cannot be resolved to a type
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:409)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
The ROOT CAUSE is listed as:
java.lang.ClassNotFoundException: org.apache.jsp.Console_jsp
     java.net.URLClassLoader$1.run(URLClassLoader.java:200)
     java.security.AccessController.doPrivileged(Native Method)
     java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:133)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:65)
     org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:596)
     org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:137)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
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     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
I'm running Tomcat 5.5.12 on Mac OS X 10.4. Could this be a permissions issue somehow? For right now (testing purposes only) I have tomcat running under my (non root) account.
I've been scouring the web for a while, and I can't really find anything on this. I'd appreciate any help you could give me.
Thanks!
Dylan

Put the DJUser java file in a package (say com.myClasses) and recompile. Then put the DJUser class file under the WEB-INF/classes directory in the proper package structure (WEB-INF/classes/com/myClasses/DJUser). Stop and restart the server to pick up the new classes. Make sure to change the jsp import statement ( <%@ page import="com.myClasses.DJUser">)

Exception notification through Email in JSP and Tomcat 5.5

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I have developed a Web application using jsp on Tomcat 5.5 web server. I want and email sent to myself if any exception occurs on the server side along with the exception.
I am not sure if it can be done on JSP or its part of Tomcat configuration.
I hope you guys could help me
Thank you

Check this page:
http://www.imagescript.com/atg/articles/jsp_j2ee/error_page_basics.htm
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hi ,
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Any one have exmple code please let me know.

Hi,
u can do like this,
Create new Z dataelemnet by giving same domain name which matnr has used and create like this zmatnr1,zmatnr2....like by giving the domain name.Then use it in internal table and u can also do same operation what u have used with matnr field as domain name are same .only u have to assign that.
Regs
Manas Ranjan Panda

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How can i do that?
Thank u.

Orlando
JComboBox jComb1 = new JComboBox();
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jComb1.addPropertyChangeListener(new PropertyChangeListener()
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So a contract can have 1 or many products and a product can have one or many sales records.
The user needs to be able to enter, update and delete any one of these records. And, ideally, enter multiple of each before saving.
Do any of you have ideas about how to go about this? Using ALV grids? or table controls? I'm still wet behind the ears regarding doing screen development in SAP so am open to any and all suggestiions.
SAP 6.4 is the version we are at.
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Maybe the original order to renew and keep unlimited data was cancelled because it was not an option. It wasn't a "bait-and-switch" The order was cancelled, it wasn't switched. When you called to reissue the order they told you the correct options so they did not switch you without your knowledge. The second rep was correct, he didn't lie, the first rep did. Verizon cancelled the order because if they didn't you would have been set up w/ new 2 year agreements on a tiered data plan, which would have been illegal. Thats why they cancelled it. So you can either not make the change, keep the unlimited data and buy the phones outright. Or switch, go to a tiered plan, and get new phones. By glitch they meant the system accidentally allowed you to keep the unlimited plan, though it was not an option. Verizon has had this rule since they removed the unlimited plan back in '11.
<< Full name of rep removed >>
Message was edited by: Verizon Moderator

Looking for documentation about AIA EBO for insurance industry

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Is there some documentation about the AIA EBO (javadocs? pdf ?) that describe EBO properties ?
Thanks

Hi,
You may want to look at this [blog entry|http://blogs.oracle.com/aia/2009/07/where_do_i_find_information_on.html ].
EBO documentation is available on E-Delivery and on Metalink. Datasheet is available here.
Regards
Rohit

Plead for help! - Sorry about me and being computer challenged!

Hello Everyone,
I am sure you get these types of posts often, and I sifted through a couple of topic pages to see if my question was among them, but didn't see anything. So, and sorry, and please bare with me here. Also, just a warning but I am kinda computer challenged grins High tech gagets are sometimes beyond me! sigh -and here I am with an ipod! LOL!
I have an IPOD mini, and have finally got everyone working on it except geting my ACTUAL music on there. Sounds dumb really but here is the kicker. I want (if it is possible) to transfer the music I have from Limewire, onto my IPOD mini(or at least the Ipod page that comes up so I can put it into my ipod from there) Now I have heard that it is possible, but I am not sure. And I have done all the help intructions, tutorials and such and still I am blank.
I would really appericate any help! Thank you!
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Topics and posts that discuss the use of Limewire are either locked or removed by the Moderators because such posts are against the forum Terms of Use (using Limewire to download copyrighted material is illegal).
Such is the seriousness with which such posts are regarded here by the Mods, that posters privileges may be suspended as a result.
So hopefully you'll understand why we cannot help you with this.

How do I set miminum # of connections for pool with Oracle and Tomcat?

Hi,
I can't seem to find any attribute to initialize the number of connections for my connection pool. Here is my current context.xml file under my /App1 directory:
<Context path="/App1" docBase="App1"
debug="5" reloadable="true" crossContext="true">
<Resource name="App1ConnectionPool" auth="Container"
type="oracle.jdbc.pool.OracleDataSource"
driverClassName="oracle.jdbc.driver.OracleDriver"
factory="oracle.jdbc.pool.OracleDataSourceFactory"
url="jdbc:oracle:thin:@127.0.0.1:1521:oddjob"
user="app1" password="app1" />
</Context>
I've been googling and reading forums, but haven't found a way to establish the minimum number of connections. I've tried all sorts of parameters like InitialLimit, MinLimit, MinActive, etc, with no success.
Here is some sample code that I am testing:
package web;
import oracle.jdbc.pool.OracleDataSource;
import oracle.jdbc.OracleConnection;
import javax.naming.*;
import java.sql.SQLException;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Properties;
public class ConnectionPool {
String message = "Not Connected";
public void init() {
OracleConnection conn = null;
ResultSet rst = null;
Statement stmt = null;
try {
Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup("java:/comp/env");
OracleDataSource ds = (OracleDataSource) envContext.lookup("App1ConnectionPool");
message = "Here.";
     String user = ds.getUser();
if (envContext == null)
throw new Exception("Error: No Context");
if (ds == null)
throw new Exception("Error: No DataSource");
if (ds != null) {
message = "Trying to connect...";
conn = (OracleConnection) ds.getConnection();
Properties prop = new Properties();
prop.put("PROXY_USER_NAME", "adavey/xxx");
if (conn != null) {
message = "Got Connection " + conn.toString() + ", ";
          conn.openProxySession(OracleConnection.PROXYTYPE_USER_NAME,prop);
stmt = conn.createStatement();
rst = stmt.executeQuery("SELECT username, server from v$session where username is not null");
while (rst.next()) {
message = "DS User: " + user + "; DB User: " + rst.getString(1) + "; Server: " + rst.getString(2);
rst.close();
rst = null;
stmt.close();
stmt = null;
conn.close(); // Return to connection pool
conn = null; // Make sure we don't close it twice
} catch (Exception e) {
e.printStackTrace();
} finally {
// Always make sure result sets and statements are closed,
// and the connection is returned to the pool
if (rst != null) {
try {
rst.close();
} catch (SQLException e) {
rst = null;
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
stmt = null;
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
conn = null;
public String getMessage() {
return message;
I'm using a utility to repeatedly call a JSP page that uses this class and displays the message variable. This utility allows me to specify the number of concurrent web requests and an overall number of requests to try. While that is running, I look at V$SESSION in Oracle and occassionaly, I will see a brief entry for app1 or adavey depending on the timing of my query and how far along the code has processed in this example. So it seems that I am only using one connection at a time and not a true connection pool.
Is it possible that I need to use the oci driver instead of the thin driver? I've looked at the javadoc for oci and the OCIConnectionPool has a setPoolConfig method to set initial, min and max connections. However, it appears that this can only be set via Java code and not as a parameter in my context.xml resource file. If I have to set it each time I get a database connection, it seems like it sort of defeats the purpose of having Tomcat maintain the connection pool for me and that I need to implement my own connection pool. I'm a newbie to this technology so I really don't want to go this route.
Any advice on setting up a proper connection pool that works with Tomcat and Oracle proxy sessions would be greatly appreciated.
Thanks,
Alan

Well I did some more experiments and I am able to at least create a connection pool within my example code:
package web;
import oracle.jdbc.pool.OracleDataSource;
import oracle.jdbc.OracleConnection;
import javax.naming.*;
import java.sql.SQLException;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Properties;
public class ConnectionPool {
String message = "Not Connected";
public void init() {
OracleConnection conn = null;
ResultSet rst = null;
Statement stmt = null;
try {
Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup("java:/comp/env");
OracleDataSource ds = (OracleDataSource) envContext.lookup("App1ConnectionPool");
message = "Here.";
     String user = ds.getUser();
if (envContext == null)
throw new Exception("Error: No Context");
if (ds == null)
throw new Exception("Error: No DataSource");
if (ds != null) {
message = "Trying to connect...";
boolean cache_enabled = ds.getConnectionCachingEnabled();
if (!cache_enabled){
ds.setConnectionCachingEnabled(true);
Properties cacheProps = new Properties();
cacheProps.put("InitialLimit","5");
     cacheProps.put("MinLimit","5");
cacheProps.put("MaxLimit","10");
ds.setConnectionCacheProperties(cacheProps);
          conn = (OracleConnection) ds.getConnection();
Properties prop = new Properties();
prop.put("PROXY_USER_NAME", "adavey/xyz");
if (conn != null) {
message = "Got Connection " + conn.toString() + ", ";
          conn.openProxySession(OracleConnection.PROXYTYPE_USER_NAME,prop);
stmt = conn.createStatement();
//rst = stmt.executeQuery("SELECT 'Success obtaining connection' FROM DUAL");
rst = stmt.executeQuery("SELECT user, SYS_CONTEXT ('USERENV', 'SESSION_USER') from dual");
while (rst.next()) {
message = "DS User: " + user + "; DB User: " + rst.getString(1) + "; sys_context: " + rst.getString(2);
message += "; Was cache enabled?: " + cache_enabled;
rst.close();
rst = null;
stmt.close();
stmt = null;
conn.close(OracleConnection.PROXY_SESSION); // Return to connection pool
conn = null; // Make sure we don't close it twice
} catch (Exception e) {
e.printStackTrace();
} finally {
// Always make sure result sets and statements are closed,
// and the connection is returned to the pool
if (rst != null) {
try {
rst.close();
} catch (SQLException e) {
rst = null;
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
stmt = null;
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
conn = null;
public String getMessage() {
return message;
In my context.xml file, I tried to specify the same Connection Cache Properties as attributes, but no luck:
<Context path="/App1" docBase="App1"
debug="5" reloadable="true" crossContext="true">
<Resource name="App1ConnectionPool" auth="Container"
type="oracle.jdbc.pool.OracleDataSource"
driverClassName="oracle.jdbc.OracleDriver"
factory="oracle.jdbc.pool.OracleDataSourceFactory"
url="jdbc:oracle:thin:@127.0.0.1:1521:oddjob"
user="app1" password="app1"
ConnectionCachingEnabled="1" MinLimit="5" MaxLimit="20"/>
</Context>
These attributes seemed to have no effect:
ConnectionCachingEnabled="1" ; also tried "true"
MinLimit="5"
MaxLimit="20"
So basically if I could find some way to get these attributes set within the context.xml file instead of my code, I would be a happy developer :-)
Oh well, it's almost Miller time here on the east coast. Maybe a few beers will help me find the solution I'm looking for.

Problem with jsp and tomcat

Hi ,
I am trying to retrieve data from mysql server using Tomcat webserver of java web services developers pack. i wrote an html page that sends the account_no and password of my program to a JSP page which retrieve data from MySQL server to check whether the account no and password is valid or not . but when i start tomcat and run the html page and submit the onformation the Tomcat gives an error. i am attaching my full programs here. please someone help me.
mybank.html:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> My Bank </TITLE>
</HEAD>
<BODY>
<h1>Please Enter Your Account Number and Password</h1>
<form action="mybank.jsp" method="post">
<h2>Account Number:</h2>
<input type="text" name="accno" maxlength="10" size="10"></br>
<h2>Password:</h2>
<input type="text" name="pass" maxlength="8" size="8"></br>
<input type="submit" value="SUBMIT YOUR INFO">
</form>
</body>
</html>
mybank.jsp:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<%@ page import="java.sql.*" %>
<HTML>
<HEAD>
<TITLE> My Bank JSP </TITLE>
</HEAD>
<BODY>
<% int acc_no = request.getParameter("accno");
String password=request.getParameter("pass");
class.forName(com.mysql.jdbc.Driver);
Connection con= DriveManager.getConnection("jdbc:mysql:///password","root", "firehouse" );
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("SELECT account_no, password FROM pass WHERE password ='password' && account_no='acc_no' ");
while(rs.next())
int account=rs.getInt(1);
String passw=rs.getString(2);
if(rs!=null)
rs.close();
if(stmt!=null)
stmt.close();
if(con!=null)
con.close();
%>
<h2>Accountno:<%= account %></h2>
<h2>Password:<%= passw %></h2>
</BODY>
</HTML>
i am getting this error:
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:128)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:348)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:455)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:555)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:300)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:293)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
but i already set up the java compiler though i m getting this error. please help me.

You say you have set up the environment variables, but it is not working. You may have them set to the wrong thing. One common mistake is to point JAVA_HOME at the java/bin directory rather than just the /java directory.
Another set of eyes finds small mistakes in the variables that you might not spot yourself.
So please, post:
The values of these environment variables
The path to where the products are installed on your system (ie is it c:\java or c:\j2se1_4_2 or c:\program files?
I would take another close look at that JAVA_HOME variable to make sure of it :-)
Good luck,
evnafets

Where can I find a documentation about RRX_GRID_CMD_PROCESS and RRX1 fm?

In fm RRX_GRID_CMD_PROCESS there several parameters: where can I find a documentation (tutorial, examples, references, manuals, books or others) about it?
And, in general, about the RRX1 funtion modules?

Hello. Not sure this will help you much, but figured I would give you my thoughts. I have never seen official documentation on SAP FMs. For me, it's been a matter of figuring what is there and how they work, as needed.
Mainly, I would just look at the source code to get an idea of what the FM is doing. Then also find where the FM is being called from other programs/FMs. That would give you an idea of how other processes are utilizing the FM as well as what they are passing and how they are handling the returned data.
Maybe others know if actual documentation, but I have never seen it and usually just figure them out as mentioned above.
Thanks

Help for documentation about jsp and tomcat

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