Java class size

hi,
a general question.
does the size of the running java class depend upon the number of jar files in its classpath?
for exampl, i have three jar files, only one of which is used by my java class. when i run the java class does the memory size gets bigger if i include all three jar files in my classpath?
thanks a lot

i think not. it matter only which of these files you load.
but if you have lotsa classes in your path, then it might be little harder for your JVM to locate these classes that are needed and therefore your app might run little slower.
but when you have initialiced your classes, then loding them again will not need classloader to look for your class from classpath... so that cost you'll be paying is onetime cost for very JVM execution.

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Managing JSP files (.java, .class) size in working directory

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Java.lang.OutOfMemoryError:class Your Java heap size might be set too high.

I am getting the below error while deploying some soa applications in WLS 10.3 on solaris platform.As a workaround,
the server instance has to be restarted everytime i make the deployments when i face this OOM situations.
usually i face this issue after first deployment onwards.
So, everytime i make the next deployment the server instance has to be restarted before that.
The server is configured with 1Gb JVM and runs on JRockit jrrt-4.0.0-1.6.0.
MEM_ARGS="-Xms1g -Xmx1g -Xgcprio:throughput -Xverbose:gc -XX:+HeapDumpOnOutO
fMemoryError -XXcompressedRefs:enable=true"
Can anybody please provide any pointers to track/solve this issue?
Log extract:
####<Oct 10, 2010 4:27:31 PM PST> <Error> <Deployer> <BOX1> <SERVER2> <[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <1256893524756> <BEA-149265> <Failure occurred in the execution of deployment request with ID '1256893524756' for task '3'. Error is: 'weblogic.application.ModuleException: '
weblogic.application.ModuleException:
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1373)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:468)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:201)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:118)
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at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:28)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:636)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:16)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:162)
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at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:140)
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at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:820)
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at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)
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at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
java.lang.OutOfMemoryError: class allocation, 21977184 loaded, 20M footprint in check_alloc (classalloc.c:213) 1412 bytes requested.
Java heap 1G reserved, 1G committed
Paged memory=18014398507524232K/16781304K.
Your Java heap size might be set too high.
Try to reduce the Java heap
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at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:335)
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at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:256)
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at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:176)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:308)
at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:1058)
at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:1129)
at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:542)
at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:435)
at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:465)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(Unknown Source)
at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:175)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1784)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2999)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1371)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:468)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
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at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
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at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:27)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:16)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:162)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:569)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:140)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:106)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:323)
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at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1227)
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at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

Its running on Solaris 10 platform.The server is configured with 1Gb JVM and JRockit jrrt-4.0.0-1.6.0.
MEM_ARGS="-Xms1g -Xmx1g -Xgcprio:throughput -Xverbose:gc -XX:+HeapDumpOnOutO
fMemoryError -XXcompressedRefs:enable=true"
Let me know if you need any more information to track this issue.

Java class bean can not access to DB in JSP file

Hi, I wrote a java class bean in order to access to MySql database ,and this bean is used in a JSP file,so that the bean can query from DB and then display the queried information on the JSP file,but it can not work correctly,the following is the source code and error message popup by the system,
does anybody has experience in solving thus question,Please reply ,Thank you for your help.
%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import = "java.sql.*" %>
<jsp:useBean id="conn" scope="page" class="news.conn"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>1</title>
<style>

</style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1">
<tr>
<td width="100%">
<img border="0" src="images/ruanjian.jpg" width="770" height="154"></td>
</tr>
<tr>
<td width="100%">@</td>
</tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber2">
<tr>
<td width="13%">@</td>
<td width="87%">
<img border="0" src="images/mid-rdxw2.gif" width="101" height="18"><p>
<%
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String strSql=null;
strSql = "select * from news where TYPE=1";
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          while (rs.next()){
%>
<span class="s"> <a href="newsContent.jsp?newsId=<%=rs.getInt(id")%">"><%=rs.getString("Title")%></a><br>
<%
%>
<p>
<img border="0" src="images/mid-hyxw2.gif" width="94" height="19"></p>
<%
strSql="select * from news where TYPE=2";
          rs = conn.executeQuery(strSql);
          while (rs.next()){
%>
<span class="s"> <a href="newsContent.jsp?newsId=<%=rs.getInt("id")%>"><%=rs.getString("Title")%></a><br>
<%
%>
<p>@</td>
</tr>
</table>
<p align="center">Study Online</p>
<p align="center">@</p>
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</html>
Error message:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /newsMain.jsp:47
44: strSql = "select * from news where TYPE=1";
45:           rs = conn.executeQuery(strSql);
46:
47:           while (rs.next()){
48:
49: %>
50:
Stacktrace:
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NullPointerException
     org.apache.jsp.newsMain_jsp._jspService(newsMain_jsp.java:98)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 l</a>

nogoodatcoding wrote:
Tolls wrote:
Is that Jasper Exception telling us where the problem is in the jsp, though?
If it is, then "rs" is null in the call rs.next()...which means conn.executeQuery() is returning null. Which means that whatever class conn is (news.conn?) has a problem maybe?That's possible. Though, it may just be the case that the 'conn' object itself is null! That line is the first place where it's being used and there are no checks that I can see...we'll have to wait for the OP to investigate and reply I guess.That's what I originally thought, then I noticed it was saying line 47, which is the rs.next() line. Assuming Jasper is correct in its choice of line, then it's the rs that's null. Which means the conn is doing strange things.
Edit: Now that I think about it, going by the previous thread the OP posted, I'm wondering whether news.conn class is their attempt to move the JDBC stuff out of the JSP page, and it's grabbing the "real" connection (java.sql.Connection) and getting the result set and returning it...or getting something wrong and returning null.
Edited by: Tolls on 11-Jun-2009 12:24

How do you invoke custom java classes???

Could someone post a detailed method of invoking custom java classes that works including what files go where, settings and the way it is invoked etc.
I have tried various ways from this forum and in the documentation without success. I am using IDM 8. I found these instructions regarding how you would do it if you were writing custom resource adaptors in the deployment tools guide:
To install a resource adapter youve customized:
1. Load the NewResourceAdapter.class file in the Identity Manager installation
directory under
idm/WEB-INF/classes/com/waveset/adapter/sample
(You might have to create this directory.)
2. Copy the .gif file to idm/applet/images.
This .gif file is the image that displays next to the resource name on the List
Resources page, and it should contain an image for your resource that is
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3. Add the class to the resource.adapter property in
config/waveset.properties.
4. Stop and restart the application server. (For information about working with
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Edited by: masj78 on Nov 25, 2008 3:50 AM
Edited by: masj78 on Nov 25, 2008 4:03 AM

Hi,
The way to add custom class is the same as you followed , put them in the WEB-INF/classes.
To use the custom adapter ,
Go To Resources - > Configure Types -> Add Custom Resource .
Type in the fully qualified class name of the custom adapter you added.and Save.
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Thanks,
Balu

How to convert java class to dll file for using in Microsoft Technology(.n)

hey hemmj !!!!!!
nice replying , first of all i d like to say thanks for response me so frequently..... i like such type of guy... i d never forget ur online support.
hey buddy, i ve a problem with applet application...
i m working on java chat server build on swing applet. As it is chat server, it is divided into two parts, one is server application and other is client application. I want to run this server app on the client server and the basic thing with this site is that it is running on .net platform(Microsoft). and the other app ll running on the client machine or end user. Now the problem is that this site would run only if the server app ll be run on server. This server app ll open the socket of server, which ll listen the request of the user...... So, the requirement is to convert this java sever class file into dll file and register this dll file with the IIS server.So, It run and stop with the IIS server.
I ve already search the way to convert the java class file into dll file. This is possible in such way........... below code is for the java class file...
import java.net.*;
import java.io.*;
import java.util.*;
public class chatServer
public static void main(String args[]) throws Exception
ServerSocket sersoc=new ServerSocket(1234);// Any port number above 1000 should do
// as most ports below 1000 are used by system
Vector socvec=new Vector();
String data="";int i,j=0;
BufferedReader in;
//System.out.println("Listening of port " + sersoc.getLocalPort());
//System.out.println("Waiting for connections...");
while(true)
Socket soc=sersoc.accept();
socvec.addElement(soc);
chatServerReadThread csrt=new chatServerReadThread(socvec, soc);
in=new BufferedReader(new InputStreamReader(soc.getInputStream()));
PrintStream out=new PrintStream(soc.getOutputStream());
out.println("Connected to chat server");
out.flush();
data= in.readLine();
for(i=0;i<socvec.size();i++)
soc=(Socket)socvec.elementAt(i);
out=new PrintStream(soc.getOutputStream());
out.println(data + " connected");
out.flush();
//System.out.println(data + " connected");
csrt.start(); // error is comming from here..... plz help me.
class chatServerReadThread extends Thread
Vector socvec;
PrintStream out;
chatServerReadThread(Vector socvec, Socket soc)
this.socvec=socvec;
try
out=new PrintStream(soc.getOutputStream());
}catch(Exception e){}
public void run()
try
String data;
Socket soc;
BufferedReader in;
while(true)
for(int i=0;i<socvec.size();i++)
soc=(Socket)socvec.elementAt(i);
in=new BufferedReader(new InputStreamReader(soc.getInputStream()));
if(in.ready())
try
data=in.readLine();
if(data.charAt(0) == ']')
data = in.readLine() + " exited";
//System.out.println(data);
socvec.removeElement(soc);
for(int e=0;e<socvec.size();e++)
soc=(Socket)socvec.elementAt(e);
out=new PrintStream(soc.getOutputStream());
out.println(data);
out.flush();
else
for(int e=0;e<socvec.size();e++)
soc=(Socket)socvec.elementAt(e);
out=new PrintStream(soc.getOutputStream());
out.println(data);
out.flush();
}catch(Exception e){socvec.removeElement(soc);}
}catch(Exception e){e.printStackTrace();}
first i ve made the jar file of this class
jar cvf chatServer.jar chatServer.classafter getting the jar chatServer.jar. I ve opened the .net dos prompt and
type this command which ll make dll file automatically....
> jbimp /t:library chatServer.jar
And you'll see the following output:
Microsoft (R) Java-language bytecode to MSIL converter version 1.1.4322.0
for Microsoft (R) .NET Framework version 1.1.4322
Copyright (C) Microsoft Corp 2000-2002. All rights reserved.
Created chatServer.dll
I cant get the problem origin from where it is comming, when i tried to convert it into .dll file it shown an error that, it did not recongnized the method in first class
public static void chatServerReadThread.start() method
is not recognized by .net dos prompt commnad. But when i omit this method it gets created the .dll file. This start method is basically the default method of thread class that run the thread from the same class..
By vewing the code u can visulize the thing,, i ve marked the code from where the error is comming.
Plz do it as soon as possible, i ll waiting for ur reply......
I ll be really thanking u for that....
Thanx and regards
Niraj Kumar Singh

I wonder if this will work:
jbimp /t:exe chatServer.jar
Your chatServer is an application that can be started from the commandline.
A dll is a library to be used in com, com+, other executables or ....

How to implement a java class in my form .

Hi All ,
I'm trying to create a Button or a Bean Area Item and Implement a class to it on the ( IMPLEMENTATION CLASS ) property such as ( oracle.forms.demos.RoundedButton ) class . but it doesn't work ... please tell me how to implement such a class to my button .
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AIN
null

hi [email protected]
tell me my friend .. how can i extend
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Thanx a lot for your cooperation .
Ali
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by [email protected]:
Henrik, the Java importer lets you call Java classes on the app server side - I think what Ali is trying to do is integrate on the client side.
If you want to add your own button then if you extend the standard Forms button in Java and then use this class name in the implementation class property then the Java for your button will be used instead of the standard Forms button. And since it has extended the basic Forms button it has all the standard button functionality.
There is a white paper on OTN about this and we have created a new white paper which will be out in a couple of months (I think).
Regards
Grant Ronald<HR></BLOCKQUOTE>
null

How to import a java class in a JSP

Hi All,
I have a java class file called myTest.class (i made after compilation of myTest.java). I have a JSP page that uses this java class file.
These 2 files are in same folder called c:/test
and iam importing this java class file into my jsp file and that too at the start of this jsp file:
<%@page import="myTest" %>
BUt iam getting an error ..............when iam running this JSP page:
/opt/bea81sp2/user_projects/domains/wliDomain/./Managed2/.wlnotdelete/extract/Managed2_myTest_myTest/jsp_servlet/__test.java:20: '.' expected
probably occurred due to an error in /test.jsp line 5:
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Don't bother with the import
when iam not importing this class file into my JSP, then on my JSP, the class file is not found.
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import org.apache.tools.ant.taskdefs.Ant;
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import org.apache.tools.ant.types.*;
import org.apache.tools.ant.*;
import org.apache.tools.ant.taskdefs.ExecTask;
import org.apache.tools.ant.types.Commandline;
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     arg.setLine("-f build.xml "+ targetName + " -listener org.apache.tools.ant.XmlLogger -logfile /export/home/beamon/bin/log.xml");
     System.out.println("printing 2....");
    //exec.setOutput(new File("D:/antProject/logs/prob.txt"));
    exec.execute();
    System.out.println("printing 3....");
-----------------------the JSP page is called as test.jsp
<%@page contentType="text/html" %>
<%@page import="java.io.*" %>
<%@page import="java.util.*" %>
<%@page import="java.net.*" %>
<%@page import="RunTest" %>
<HTML>
<TITLE>TESTING ANT GUI</TITLE>
<HEAD>
<META HTTP-EQUIV="Refresh" CONTENT="3000" >
<meta http-equiv="Cache-Control" content="no-cache">
</HEAD>
<BODY BGCOLOR="silver" TEXT="333333">
<table border=0>
<tr align="left"><td align="left"><FONT SIZE="-1"><B> Test Page <FONT SIZE="-1"><B></td></tr>
</table>
<hr></center>
<form action="./test.jsp" method="POST" name="testForm">
<table>
<tr>
<td>
<select name="appName" size=1>
<option value="">Select Application Name
<option value="scsmail">scsMail
<option value="clientmanager">ClientManager
</select>
</td>
<td>
<select name="boxName" size=1>
<option value="">Select Box Name
<option value="testnet">TestNet
<option value="production">Production
</select>
</td>
</table>
<table>
<input type="submit" name="deploy" value="deploy">
<input type="submit" name="undeploy" value="undeploy">
</table>
<%
   RunTest rt = new RunTest();
   rt.applicationName(request.getParameter("appName"));
    String deployButton = "";
    deployButton=request.getParameter("deploy");
    String undeployButton = "";
    undeployButton=request.getParameter("undeploy");
    if(!deployButton.equalsIgnoreCase("")){
        rt.buttonClicked(request.getParameter("deployButton"));
    if(!undeployButton.equalsIgnoreCase("")){
        rt.buttonClicked(request.getParameter("undeployButton"));
   rt.boxName(request.getParameter("boxName"));
    rt.goTest();
%>
</form>
</table>
</BODY>
</HTML>

Facing problem to Use a custom Java class in UCCX

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin-top:0in;
mso-para-margin-right:0in;
mso-para-margin-bottom:10.0pt;
mso-para-margin-left:0in;
line-height:115%;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;}
Hi,
We are using Communication manager 7.0.1 and UCCX version 7.0.1(Cisco Unified CCX Premium). We are trying to call a Custom Java class file from UCCX scripting. We have followed the steps mentioned in the guide (How-To: Using a custom Java class in UCCX 5.x (SOAP Example)). See below link.
http://www.avholloway.com/vtools/ipcc/custom-java/soap/
After completed all the steps we have got the variable type SimpleSOAP at script but we did not found it to object constructors or object attributes (plz find the attached screenshots). We will appreciate if you plz guide us to solve the issue.
Thanks
Fakhrul
LEADS Corporation Ltd.

Hello, Fakhrul.
I'm sorry to see you were not able to find the information or help you were looking for here in the Contact Center community forum.
You may be able to find more help through the Cisco Developer Network.
Also, you might want to consider engaging Cisco Advanced Services via your account team to assist with UCCX custom scripting.
Thank you, and good luck.
-Paulo

How to find the location of java class files at runtime?

Does anyonw have an idea how to get the file name of a java class given the binary name?
I mean how can I get the file name for my class myPackage.myClass?
I am looking for a function which takes "myPackage.myClass" as input and returns
"c:\\javaprojects\\myPackage\\myClass.class".
I tried to do it with the LassLoader class but it did not work. Does anyone have an idea if the Java core API already has a function which does that?
Thanks, Bernhard

Hi ,
It is a simple SAMPLE code , you think and build a logics to handle all classes.
Try this sample, It doesn't handle the inner classes you put logic to handle the logics for inner classes.
The inner class format is it contains the character $ in the File location but inside the code you put "." instedad of "$" you to find out or put trials.
package pkg1;
import java.io.* ;
import java.util.* ;
import java.util.zip.* ;
public class ClsB {
     private static Vector clsPaths ;
     public static Vector getPaths() {
          if( clsPaths == null ) {
               String paths = System.getProperty( "java.class.path" ) ;
               // In linux or solarise use the following
               // StringTokenizer st = new StringTokenizer( paths , ":\n" ) ;
               StringTokenizer st = new StringTokenizer( paths , ";\n" ) ;
               clsPaths = new Vector() ;
               while( st.hasMoreTokens() ) {
                    String path = st.nextToken() ;
                    File f = new File( path ) ;
                    if( f.exists() ) {
                         try {
                              f = f.getCanonicalFile() ;
                              clsPaths.add( f ) ;
                         }catch( IOException ioe ) { }
          return clsPaths ;
     public static String findClassPath( String fullClassName ) {
          Vector v = getPaths() ;
          for( int i = 0 ; i < v.size() ; i++ ) {
               File f = ( File ) v.get( i ) ;
               String path = findIn( f , fullClassName ) ;
               if( path != null )
                    return path ;
          return null ;
     static boolean isJar( File jar ) {
          if( jar.isDirectory() )
               return false ;
          try {
               ZipFile zf = new ZipFile( jar ) ;
               return true ;
          } catch ( ZipException ze ) {
               // It is not a jar file
               // you handle this
          } catch ( IOException ioe ) {
               ioe.printStackTrace() ;
          return false ;
     static String findIn( File dirOrJar , String clsName ) {
          if( isJar( dirOrJar ) ) {
               // It is something different because the class inside the jar file
               // Simply I return the jar file location and the entry name ,
               // but you put action what you want
               if( isInsideJar( dirOrJar , clsName ) ) {
                    // All archieve file using the path separator is '/'
                    return dirOrJar.getPath() + "!" + clsName.replace( '.' , '/' ) + ".class" ;
          } else {
               File f = new File( dirOrJar , clsName.replace( '.' , File.separatorChar ) + ".class" ) ;
               if( f.exists() ) {
                    return f.getPath() ;
          return null ;
     static boolean isInsideJar( File jar , String clsName ) {
          try {
               ZipFile zf = new ZipFile( jar ) ;
               // All archieve file using the path separator is '/'
               ZipEntry ze = zf.getEntry( clsName.replace( '.' , '/' ) + ".class" );
               return ( ze != null ) ;
          } catch ( ZipException ze ) {
               ze.printStackTrace() ;
          } catch ( IOException ioe ) {
               ioe.printStackTrace() ;
          return false ;
     public static void main(String[] args) {
          System.out.println( findClassPath( "pkg1.ClsB" ) );
          System.out.println( findClassPath( "pkg1.pkg2.ClsA" ) );
}

Error Message: A main Java class needs to be specified to run the program.

Hi,
I am adding a program object to cms using java program, and trying to run it. I am getting an error message like
Error Message: A main Java class needs to be specified to run the program.
Could you please help me on this., please find the pasted program object pasted below
public class MoveReports   {
public void run(IEnterpriseSession enterpriseSession, IInfoStore infoStore,
               String[] args) throws SDKException {
    int objectSize = ;
    String cms = "";
     String username = "";
     String password = "";
     String auth = "";
    try {
          ISessionMgr sm = CrystalEnterprise.getSessionMgr();
         enterpriseSession = sm.logon(username, password, cms, auth);
         IInfoStore oInfoStore=(IInfoStore)enterpriseSession.getService("", "InfoStore");
             IInfoObjects iObjects = null;
               iObjects = oInfoStore.query("Select * from CI_INFOOBJECTS where SI_PARENTID = 44104 AND SI_PROGID LIKE '%CrystalEnterprise.Excel%'");
               // Getting total number of reports
               objectSize = iObjects.size();
               if(objectSize > 0)
                    for (int count = 0; count < objectSize; count++)
                         IInfoObject obj = (IInfoObject) iObjects.get(count);
                         // Specify the Destination parent Id to move the reports
                         obj.setParentID(44102);
                    oInfoStore.commit(iObjects);
                    System.out.println("Reports Moved Successfully");
               else
                    System.out.println("Reports Not Available");
         catch (SDKException e) {
             e.printStackTrace();
             System.out.println("Error : " + e.getMessage());
Thanks&Regards
Damodar
Edited by: Damodaram B on Nov 2, 2009 1:29 PM

There's couple of things at issue here - you've not specified the proper interface (IProgramBase or IProgramBaseEx), and the program job server can't find the class in question (a deployment issue).
You may want to open a support ticket with SAP.
Sincerely,
Ted Ueda

Binding a JavaFX variable to a Java class instance variable

Hi,
I am pretty new to JavaFX but have been developing in Java for many years. I am trying to develop a JavaFX webservice client. What I am doing is creating a basic scene that displays the data values that I am polling with a Java class that extends Thread. The Java class is reading temperature and voltage from a remote server and storing the response in an instance variable. I would like to bind a JavaFx variable to the Java class instance variable so that I can display the values whenever they change.
var conn: WebserviceConnection; // Java class that extends Thread
var response: WebserviceResponse;
try {
conn = new WebserviceConnection("some_url");
conn.start();
Thread.sleep(10000);
} catch (e:Exception) {
e.printStackTrace();
def bindTemp = bind conn.getResponse().getTemperature();
def bindVolt = bind conn.getResponse().getVoltage();
The WebserviceConnection class is opening a socket connection and reading some data in a separate thread. A regular socket connection is used because the server is not using HTTP.
When I run the application, the bindTemp and bindVolt are not updated whenever new data values are received.
Am I missing something with how bind works? Can I do what I want to do with 'bind'. I basically want to run a separate thread to retrieve data and want my UI to be updated when the data changes.
Is there a better way to do this than the way I am trying to do it?
Thanks for any help in advance.
-Richard

Hi,
If you don't want to constantly poll for value change, you can use the observer design pattern, but you need to modify the classes that serve the values to javafx.
Heres a simple example:
The Thread which updates a value in every second:
// TimeServer.java
public class TimeServer extends Thread {
    private boolean interrupted = false;
    public ValueObject valueObject = new ValueObject();
    @Override
    public void run() {
        while (!interrupted) {
            try {
                valueObject.setValue(Long.toString(System.currentTimeMillis()));
                sleep(1000);
            } catch (InterruptedException ex) {
                interrupted = true;
}The ValueObject class which contains the values we want to bind in javafx:
// ValueObject.java
import java.util.Observable;
public class ValueObject extends Observable {
    private String value;
    public String getValue() {
        return this.value;
    public void setValue(String value) {
        this.value = value;
        fireNotify();
    private void fireNotify() {
        setChanged();
        notifyObservers();
}We also need an adapter class in JFX so we can use bind:
// ValueObjectAdapter.fx
import java.util.Observer;
import java.util.Observable;
public class ValueObjectAdapter extends Observer {
    public-read var value : String;
    public var valueObject : ValueObject
        on replace { valueObject.addObserver(this)}
    override function update(observable: Observable, arg: Object) {
         // We need to run every code in the JFX EDT
         // do not change if the update method can be called outside the Event Dispatch Thread!
         FX.deferAction(
             function(): Void {
                value = valueObject.getValue();
}And finally the main JFX code which displays the canging value:
// Main.fx
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.text.Text;
import javafx.scene.text.Font;
import threadbindfx.TimeServer;
var timeServer : TimeServer;
var valueObjectAdapter : ValueObjectAdapter = new ValueObjectAdapter();
timeServer = new TimeServer();
valueObjectAdapter.valueObject = timeServer.valueObject;
timeServer.start();
Stage {
    title: "Time Application"
    width: 250
    height: 80
    scene: Scene {
        content: Text {
            font : Font {
                size : 24
            x : 10, y : 30
            content: bind valueObjectAdapter.value;
}This approach uses less cpu time than constant polling, and changes aren't dependent on the polling interval.
However this cannot be applied to code which you cannot change obviously.
I hope this helps.

Errors generating Java classes from XML schema

I received the following errors when generating Java classes from the schema located at: http://imsproject.org/xsd/ims_qti_rootv1p1.xsd and http://imsproject.org/xsd/ims_xml.xsd
XML Spy v4 claims that the schema is well-formed and valid. Could this be a problem with the class generators, or is XML Spy not telling the truth?
Thanks.
D:\IMS_QTI\Java>java -classpath .;lib/xmlparserv2.jar;lib/xschema.jar;lib/classgen.jar oracle.xml.classgen.oracg -schema ims_qti_rootv1p1.xs
d -outputDir src\com\icld\qti -package com.icld.qti -comment
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 235, Column 21>: XSD-2209: (Error) Duplicated definition for: 'attr.view'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 303, Column 21>: XSD-2209: (Error) Duplicated definition for: 'grp.labels'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 1834, Column -12236>: XSD-2209: (Error) Duplicated definition for: 'qtimetadatafield'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 1834, Column -9642>: XSD-2209: (Error) Duplicated definition for: 'typeofsolutionType'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 2252, Column -3019>: XSD-2026: (Error) Invalid attribute 'use' in element 'attribute'
Error: Schema Class Generator failed to generate classes. oracle.xml.parser.schema.XSDException: Duplicated definition for: 'attr.view'

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Jinyu Wang ([email protected]):
Which version are you using? I can't reproduce the error with 9.0.2B version.<HR></BLOCKQUOTE>
Thanks for having a look at the problem. I am using the 9.0.2.0B version with Java 2 Standard Edition Build 1.3.1-b24. The classgen -version option returns 9.0.2.0b-beta - and xmlparserv2.jar and xschema.jar are from the same distribution. Running the corresponding DTD from the same source work fine - I'm just havinf this problem with the XSD. Anything else I should look at?

How to execute the ldapsearch command by java class in linux os?

hi,all
I want to query the users by ldapsearch command. I call the command in my java class. In windows, It work well. But in linux , there haven't any result. My test program is following:
===============
import java.util.*;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
public class test{
public static Vector queryAllUser(){
try{
Vector v=new Vector();
String cmdquery="ldapsearch -h localhost -b\"dc=metasphere,dc=com\" \"uid=*\" uid ";
//String cmdquery="ls -la";
Process process=Runtime.getRuntime().exec(cmdquery);
System.out.println("cmdquery:"+cmdquery);
InputStreamReader ir=new InputStreamReader(process.getInputStream());
LineNumberReader input = new LineNumberReader (ir);
System.out.println("input="+input);
String line;
while ((line = input.readLine ()) != null){
System.out.println("Line:"+line);
if(line.startsWith("uid")){
String temp=line.substring(line.indexOf(":")+1,line.length());
v.add(temp);
return v;
}catch(Exception e){
e.printStackTrace();
System.out.println("runtime error:"+e.getMessage());
return null;
public static void main(String argv[]){
Vector v=queryAllUser();
for(int i=0;i<v.size();i++){
System.out.println((String)v.get(i));
================
In fact, when I execute the command: ldapsearch -h localhost -b"dc=metasphere,dc=com" "uid=*" uid
in linux prompt, the screen show the results:
version: 1
dn: uid=toppymgt,dc=metasphere,dc=com
uid: toppymgt
dn: uid=qutao,dc=metasphere,dc=com
uid: qutao
dn: uid=zz,dc=metasphere,dc=com
uid: zz
dn: uid=z,dc=metasphere,dc=com
uid: z
dn: uid=admin,dc=metasphere,dc=com
uid: admin
dn: uid=alan,dc=metasphere,dc=com
uid: alan
dn: uid=misssixty,dc=metasphere,dc=com
uid: misssixty
dn: uid=channelv,dc=metasphere,dc=com
uid: channelv
What's reason? Please help me. Thx.

If there have a bugs in Linux OS. Please help me!

Help! How to read a .txt file into a Java class and make 2D array?

Hi guys,
Im a newbie with arrays, just started really using them.. please bear with me if I don't seem to understand much..
I have a .txt file that contains either a square or rectangle (random width and length).. How can I read each line into a Java class into a 2D array with rows and columns?

Example :
import javax.swing.*;
import java.util.ArrayList;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.File;
public class ReadInto2DArrayExample {
    public static void main(String[] args) {
        ArrayList array = new ArrayList();
        char [][] twoDimesionArray = null;
        try
            JFileChooser fileChooser = new JFileChooser();
            if (fileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION)
                File file = fileChooser.getSelectedFile();
                BufferedReader reader = new BufferedReader(new FileReader(file));
                String data;
                //Read from file
                while ((data = reader.readLine()) != null)
                    //Convert data to char array and add into array
                    array.add(data.toCharArray());
                reader.close();
                //Creating a 2D char array base on the array size
                twoDimesionArray = new char [array.size()][];
                //Convert array from ArrayList to 2D array
                for (int i = 0; i < array.size(); i++)
                    twoDimesionArray[i] = (char [])array.get(i);
                //Test the 2D Array
                for (int y = 0; y < twoDimesionArray.length; y++)
                    char [] temp = twoDimesionArray[y];
                    for (int x = 0; x < temp.length; x ++ )
                        System.out.print(temp[x]);
                    System.out.println("");
        catch (Exception ex)
            ex.printStackTrace();
}

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