New to Java Applications

Hi,
I'm new to Jave applications. I have a Java system. need to fix small issue in that.
I have only the system web page link. I don't know how to see the code or on which platform I can see that code.
Please help about what are the softwares I need to install, and what are the steps to see the code and modify it.
Regards
Ajay.

You cannot fix a web based application that downloads to you when you come onto the page, the webmaster/developer over at the site must do that.

Similar Messages

New JAVA application with data from SAP CRM and R/3

Hi All,
We have a requirement to create a new application which will have CRM BP Master data and D&B Data from R/3 and based on authorization different roles be able to edit some of the fields and workflows to confirm the new data .Once users edit the fields in the application the new data will be replicated back into BP Master Data in CRM.
In our company we are using CRM 7.0 and R/3 4.7 system if we decided to create the application using JAVA can you please let me know the architecture(servers etc) we might need because of the JAVA application.
How to connect Java application to SAP CRM 7.0. Can you please guide me the data flow structure
I am not sure if this is the right forum if not please suggest appropriate forum.
Thanks a lot ,
Kitcha.

Hi,
You can connect to SAP Systems by consuming the RFCs.
you can use the JCO API to connect to R/3. the [documentation |http://help.sap.com/saphelp_nw04/helpdata/en/6f/1bd5c6a85b11d6b28500508b5d5211/content.htm]
alternatively you can use SAP Enterprise Connector to generate JCO Proxies : [The Documentation|http://help.sap.com/saphelp_nw04/helpdata/EN/ed/897483ea5011d6b2e800508b6b8a93/frameset.htm]
and somr more helps:
http://help.sap.com/saphelp_nw04/helpdata/en/89/8a185c148e4f6582560a8d809210b4/frameset.htm
Regards,
Naga

Spawning a new process from a java application

Hi,
Was wondering if there is any way to spawn a new java application (not as a Thread) from a running application?
ie, class A and class B are both applications: both have public static void main() methods, and i want class A to spawn a class B application in a separate console window
I have tried the samy by using java.lang.Runtime and java.lang.Process class but I could not satisfy myself.
Do you guys have any idea...??

Hi,
I tried as you instructed. See, there is one batch file named s.bat in the current directory and I am trying to run my application which in turn executes following command in Runtime.getRuntime().exec() method,
start command /k s.bat
on execution of this line it throws IOException as,
Executing : start command /k s.bat
java.io.IOException: CreateProcess: start command /k s.bat error=2
at java.lang.Win32Process.create(Native Method)
at java.lang.Win32Process.<init>(Unknown Source)
at java.lang.Runtime.execInternal(Native Method)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at RuntimeTest.main(RuntimeTest.java:17)
line no. 17 goes like this,
Process p = Runtime.getRuntime().exec(cmd);
Am i wrong at any strage or what..?? I suggest you also try to do the same. I am working on Windows NT 4.0 platform. It may be more restrictive....?? I don't know exact reason why it is not allowing me to do so???
Any comment??

HTTP form post from Web Dynpro Java Application without opening new window

Hi Experts,
We are trying to submit form data to an external URL from Web Dynpro Java application. We are achieving this with the following piece of code.
try
   strPrintContent="<html>"+
     "<head>"+
     "<script type=\"text/javascript\">"+
     "function myfunc () "+
     "{"+
     "var frm = document.getElementById(\"paymentForm\");"+
     "frm.submit();"+
     "}"+
     "</script>"+
     "</head>"+
     "<body onLoad=myfunc()>"+
     "<form id=paymentForm method=post action=\""+merchantURLPart+"\">"+
     "<INPUT type=hidden name=username value="+userName+">"+
     "<INPUT type=hidden name=pass value="+passWord+">"+
     "<INPUT type=hidden name=senderid value="+senderID+">"+
     "<INPUT type=hidden name=dest_mobileno value="+mobile+">"+
     "<INPUT type=hidden name=message value='"+msg+"'>"+
     "<INPUT type=hidden name=response value="+response+">"+
     "</form>"+
     "</body>"+
     "</html>";
IWDWebResource webResource = WDWebResource.getWebResource(strPrintContent.getBytes(),WDWebResourceType.HTML);
IWDWindow window = wdComponentAPI.getWindowManager().createNonModalExternalWindow(webResource.getAbsoluteURL(),"WBSEDCL");
window.show();
catch(Exception e)
wdComponentAPI.getMessageManager().reportException("Error : "+e.toString(),false);
But it opens another window. We dont need that. We have to stay on the same window. Please suggest what can be done.

Hi,
You can create a HTML file with the request post parameters and the external URL something like this:
public java.lang.String GetRedirecturl( )
// External URL
String html = "<html><head></head><body onload=\"load()\"> " +
"<form id=\"form1\" action=\"https://www.abc.com/xyz.jsp\" method=\"POST\">" +
// Post Parameters
"<INPUT TYPE=\"HIDDEN\" NAME=\"Param1\"VALUE=\""+Param1Value+"\">"+
"<input name=\"sap-wd-resumeurl\" type=\"hidden\"/>" +
"</form> " +
"" +
"<script>" +
"function load(){" +
"var loc = window.location.search.substring(1);" +
"var queryString = loc.split(\"sap-wd-resumeurl=\");" +
"if(queryString.length > 0)" +
"{" +
"var resumeURL = queryString[1].split(\"&\");" +
"if(resumeURL.length >= 0)" +
"{" +
" document.forms['form1'].elements['sap-wd-resumeurl'].value= unescape(resumeURL[0])" +
"}" +
"}" +
"document.getElementById('form1').submit();" +
"}" +
"</script>" +
"</body> </html>";
String redirectUrl = "";
byte[] byteArrayHtmlData = null;
try {
byteArrayHtmlData = html.getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
wdComponentAPI.getMessageManager().reportException("Internal error occurred. Please try after some time",true);
IWDResource htmlResource = WDResourceFactory.createCachedResource(new ByteArrayInputStream(byteArrayHtmlData), "Redirect.html", WDWebResourceType.HTML, true);
redirectUrl = htmlResource.getUrl(WDFileDownloadBehaviour.AUTO.ordinal());
return redirectUrl;
Hope this will be helpful.
Regards,
Anurag

HT5568 Will the new update uninstall any Java applications I am currently running?

Will the new update uninstall any Java applications I am currently running?

Safari? Removing your existing Java applications? No. That won't happen.
What will happen is the Java run-time and the Java plug-ins that were part of Safari. You will be using the Oracle web site, and you'll be downloading and configuring and operating and managing the Java environment and the Java plug-ins for Safari and other browsers more directly, and usually with downloads from Oracle.
Apple deprecated Java a while back, and they're now finishing the work and the transition of support over to the folks at Oracle, and of securing OS X from attacks against stale versions of Java.

Open new url in java application

Hi,now i met a problem,i want to open a url in a application in any platform.It can descrips like this:In a java application ,there is a button ,when i clicked the button ,i can open the web browser and open the url like http://www.google.com in the browser.
Thanks in advance.

yeah,somebody do it in his software,but i can't find its sourcecode.
yesterday i did it and it works fine,but it can't work on windows platform and maybe it has bug.So i want to find a good way to solve it and it can works on any platform.
Thanks your reply.

Error while running Java application using Crystal Reports 2011

Hello,
I would like to ask for your help.
Environment details:
Java based standalone application in Development environment.
Crystal Reports 2011 (no SP applied)
Oracle 11g ( 32 bit client installed)
Win7 64 bit OS.
Workflow:
While running the java application, which will display the reports I am getting the below mentioned error. I guess that is because I am missing the Crystal runtimes (Correct me if I am wrong).
I know that CR2011 do not have any sdks/ jar available for deployment. In this case, which runtimes should I be using? Does installing CR2011 be enough in the development box?
Please provide me the link from which I can download the same.
Let me know if I need to provide more details on this. Any suggestions are most welcome.
Thank You.
Code used:
reportClientDoc = new ReportClientDocument();
System.err.println("Opening the Report ");
reportClientDoc.open(REPORT_PATH, 0);
// this is where the error or exception is thrown
_Error: _
log4j:WARN No appenders could be found for logger (com.crystaldecisions.reports.reportdefinition.ReportDocument).
log4j:WARN Please initialize the log4j system properly.
com.crystaldecisions.sdkreport.lib.ReportSDKException: com/businessobjects/reports/jdbinterface/common/DBException---- Error code:-2147467259 Error code name:failed
                at com.businessobjects.reports.sdk.JRCCommunicationAdapter.<init>(SourceFile:286)
                at com.businessobjects.sdk.erom.jrc.a.<init>(SourceFile:43)
                at com.businessobjects.sdk.erom.jrc.ReportAgentFactory.createAgent(SourceFile:46)
                at com.crystaldecisions.proxy.remoteagent.RemoteAgent.<init>(SourceFile:703)
                at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:662)
                at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:632)
                at com.crystaldecisions.sdk.report.application.ClientDocument.if(SourceFile:504)
                at com.crystaldecisions.sdk.report.application.ClientDocument.open(SourceFile:669)
                at com.crystaldecisions.reports.sdk.ReportClientDocument.open(Unknown Source)
                at rp.batch.bo.RpJRCExportReport.runReportExport(RpJRCExportReport.java:517)
                at rp.batch.bo.RpSchedReportRun.process(RpSchedReportRun.java:163)
                at rp.batch.bo.RpSchedReportRun.drive(RpSchedReportRun.java:240)
                at rp.batch.bo.RpSchedReportRun.main(RpSchedReportRun.java:265)
Caused by: java.lang.NoClassDefFoundError: com/businessobjects/reports/jdbinterface/common/DBException
                at com.crystaldecisions.reports.queryengine.Session.a2(SourceFile:244)
                at com.crystaldecisions.reports.datafoundation.DataFoundation.do(SourceFile:376)
                at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.do(SourceFile:111)
                at com.crystaldecisions.reports.dataengine.datafoundation.CreateDataConnectionCommand.new(SourceFile:81)
                at com.crystaldecisions.reports.common.CommandManager.a(SourceFile:71)
                at com.crystaldecisions.reports.common.Document.a(SourceFile:203)
                at com.businessobjects.reports.reportconverter.v12.e.a(SourceFile:442)
                at com.businessobjects.reports.reportconverter.v12.e.a(SourceFile:231)
                at com.businessobjects.reports.reportconverter.v12.d.m(SourceFile:192)
                at com.businessobjects.reports.reportconverter.v12.f.if(SourceFile:210)
                at com.businessobjects.reports.reportconverter.v12.V12SaveLoader.a(SourceFile:242)
                at com.businessobjects.reports.loader.ReportLoader.a(SourceFile:205)
                at com.businessobjects.reports.sdk.JRCReportLoader.a(SourceFile:137)
                at com.businessobjects.reports.sdk.JRCReportLoader.a(SourceFile:76)
                at com.businessobjects.reports.sdk.requesthandler.ReportDocumentRequestHandler.a(SourceFile:136)
                at com.businessobjects.reports.sdk.JRCCommunicationAdapter.<init>(SourceFile:229)
                ... 12 more
Caused by: java.lang.ClassNotFoundException: com.businessobjects.reports.jdbinterface.common.DBException
                at java.net.URLClassLoader1.run(URLClassLoader.java:200)
                at java.security.AccessController.doPrivileged(Native Method)
                at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
                at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
                at sun.misc.LauncherAppClassLoader.loadClass(Launcher.java:301)
                at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
                at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
                ... 28 more

Help me ...
Ambient:
Crystal Reports Viewer 14.0.0.0
java.vendor = Sun Microsystems Inc.
java.version = 1.6.0_37
os.name = Windows NT (unknown)
os.version = 6.2
os.arch = amd64
Exception:
com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: com.businessobjects.sdk.erom.jrc.ReportAgentFactory---- Error code:-2147215357 [CRSDK00000026] Error code name:internal
          at com.crystaldecisions.sdk.occa.report.lib.ReportSDKException.throwReportSDKException(ReportSDKException.java:112)
          at com.crystaldecisions.proxy.remoteagent.RemoteAgent.createDefaultAgent(RemoteAgent.java:1000)
          at com.crystaldecisions.sdk.occa.report.application.ClientDocument.initRemoteAgent(ClientDocument.java:770)
          at com.crystaldecisions.sdk.occa.report.application.ClientDocument.open(ClientDocument.java:961)
          at com.crystaldecisions.sdk.occa.report.application.ReportClientDocument.open(ReportClientDocument.java:226)
          at src.HelloWorldSwing.createAndShowGUI(HelloWorldSwing.java:54)
          at src.HelloWorldSwing.main(HelloWorldSwing.java:24)
Source:
import java.awt.BorderLayout;
import javax.swing.JFrame;
import com.crystaldecisions.ReportViewer.ReportViewerBean;
import com.crystaldecisions.sdk.occa.report.application.DatabaseController;
import com.crystaldecisions.sdk.occa.report.application.OpenReportOptions;
import com.crystaldecisions.sdk.occa.report.application.ReportClientDocument;
import com.crystaldecisions.sdk.occa.report.data.IConnectionInfo;
import com.crystaldecisions.sdk.occa.report.reportsource.IReportSource;
public class HelloWorldSwing {
           * @param args
          public static void main(String[] args) {
                    HelloWorldSwing pgm = new HelloWorldSwing();
                    try {
                              pgm.createAndShowGUI();
                    } catch (Exception e) {
                              e.printStackTrace();
                              //JOptionPane.showMessageDialog(null, e.toString());
           * @throws Exception
          public void createAndShowGUI() throws Exception {
                    // Make sure we have nice window decorations.
                    JFrame.setDefaultLookAndFeelDecorated(false);
                    // Create and set up the window.
                    JFrame frame = new JFrame("HelloWorldSwing");
                    frame.setTitle("Titolo del Report");
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    ReportViewerBean viewer = new ReportViewerBean();
                    viewer.init(new String[0], null, null, null);
                    ReportClientDocument rpt = new ReportClientDocument();
                    rpt.setReportAppServer(ReportClientDocument.inprocConnectionString); // inproc:jrc
                    rpt.open("Report.rpt", OpenReportOptions._openAsReadOnly);
                    IReportSource rptSource = rpt.getReportSource();
                    viewer.setReportSource(rptSource);
                    frame.getContentPane().add(viewer, BorderLayout.CENTER);
                    frame.setSize(1930, 1030);
                    frame.setVisible(true);
                    viewer.start();

APEX application integration into Java application

Hello,
I'm working on a new APEX application and I would like to integrate that application into an existing Java application.
The integration should be invisible for the end-users. Our application will have the same look and feel as the Java application.
The existing menu of the Java app will be extended with a new link. This link will then call our application.
Visually I was thinking about using an Iframe to display the content of the APEX application inside the Java generated xHTML.
This is however not the biggest issue.
We are working in a secure context and we thus need to make sure that our APEX application doesn't create a backdoor on the
security mechanism provided by the Java app.
Some options have come to mind, but the one that look best is this:
We keep the java application as the single point of entry for our end-users and make sure that the apex application is "hidden".
We could do this by means of some re-routing code in the java application so that the incomming requests there are send to the correct server (java or apex).
Then we will need to capture the response of the APEX application and place it inside the Java generated xHTML. The combined content is then send to the client.
Or we could place a reverse proxy server that does this for us.
The goal is thus that we can rely on the existing java application to cover the security and the navigation structure.
Any ideas on this ?
How-to's or other options ?
thanks & regards
Karel

In a project I am currently working on we do it using iframes and passsing parameters over a http link.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

Help please! Java application and web application...

Hi,
I have a problem with inserting a java application (Main.java) in a web application(index.jsp).
I found a source demo of a drag and drop application on the Internet, but now I want to
have the drag and drop application work in a Jpanel/JFrame in a webapplication.
The drag and drop application code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
public class Main {
    public static void main(final String[] args) {
        final ButtonGroup grp = new ButtonGroup();
        final JPanel palette = new JPanel(new FlowLayout(FlowLayout.LEFT));
        palette.setBorder(BorderFactory.createTitledBorder("Palette"));
        final MainPanel mainPanel = new MainPanel();
        mainPanel.setPalette(palette);
        for(int j=0; j<4; j++){
            final JToggleButton btn = new JToggleButton("Panel "+(j+1));
            palette.add(btn);
            grp.add(btn);
            btn.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    mainPanel.setAdding(btn.getText());
        final JFrame f = new JFrame("Drag and drop panels");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(palette, BorderLayout.WEST);
        f.getContentPane().add(mainPanel, BorderLayout.CENTER);
        f.setSize(800, 600);
        f.setVisible(true);
class MainPanel extends JPanel implements MouseListener, MouseMotionListener {
    private JPanel palette;
    private String adding="";
    private SubPanel hitPanel;
    private int deltaX, deltaY, oldX, oldY;
    private final int TOL = 4; //tolerance
    public MainPanel() {
        setLayout(null);
        addMouseListener(this);
        addMouseMotionListener(this);
    public void mousePressed(final MouseEvent e) {
        if( adding != "" ){
            setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
            SubPanel sub = new SubPanel(adding);
            add(sub);
            sub.setSize(sub.getPreferredSize());
            sub.setLocation((int)e.getX(),(int)e.getY());
            revalidate();
            adding = "";
            return;
        Component c = getComponentAt(e.getPoint());
        if (c instanceof SubPanel) {
            hitPanel = (SubPanel) c;
            oldX = hitPanel.getX();
            oldY = hitPanel.getY();
            deltaX = e.getX() - oldX;
            deltaY = e.getY() - oldY;
            if( oldX < e.getX()-TOL ) oldX += hitPanel.getWidth();
            if( oldY < e.getY()-TOL ) oldY += hitPanel.getHeight();
    public void mouseDragged(final MouseEvent e) {
        if (hitPanel != null) {
            int xH = hitPanel.getX();
            int yH = hitPanel.getY();
            int xDiff = e.getX()-oldX;
            int yDiff = e.getY()-oldY;
            int cursorType = hitPanel.getCursor().getType();
            if( cursorType == Cursor.W_RESIZE_CURSOR){           //West resizing
                hitPanel.setBounds( e.getX(), yH, hitPanel.getWidth() - xDiff, hitPanel.getHeight() );
            }else if( cursorType == Cursor.N_RESIZE_CURSOR){     //North resizing
                hitPanel.setBounds( xH, e.getY(), hitPanel.getWidth(), hitPanel.getHeight() - yDiff );
            }else if( cursorType == Cursor.S_RESIZE_CURSOR){     //South resizing
                hitPanel.setSize( hitPanel.getWidth(), hitPanel.getHeight() + yDiff );
            }else if( cursorType == Cursor.E_RESIZE_CURSOR){     //East resizing
                hitPanel.setSize( hitPanel.getWidth() + xDiff, hitPanel.getHeight() );
            }else if( cursorType == Cursor.NW_RESIZE_CURSOR){     //NorthWest resizing
                hitPanel.setBounds( e.getX(), e.getY(), hitPanel.getWidth() - xDiff, hitPanel.getHeight() - yDiff );
            }else if( cursorType == Cursor.NE_RESIZE_CURSOR){     //NorthEast resizing
                hitPanel.setBounds( xH, e.getY(), hitPanel.getWidth() + xDiff, hitPanel.getHeight() - yDiff );
            }else if( cursorType == Cursor.SW_RESIZE_CURSOR){     //SouthWest resizing
                hitPanel.setBounds( e.getX(), yH, hitPanel.getWidth() - xDiff, hitPanel.getHeight() + yDiff );
            }else if( cursorType == Cursor.SE_RESIZE_CURSOR){     //SouthEast resizing
                hitPanel.setBounds( xH, yH, hitPanel.getWidth() + xDiff, hitPanel.getHeight() + yDiff );
            }else{      //moving subpanel
                hitPanel.setLocation( e.getX()-deltaX, e.getY()-deltaY );
            oldX = e.getX();
            oldY = e.getY();
    public void mouseMoved(final MouseEvent e) {
        Component c = getComponentAt(e.getPoint());
        if (c instanceof SubPanel) {
            int x = e.getX();
            int y = e.getY();
            int xC = c.getX();
            int yC = c.getY();
            int w = c.getWidth();
            int h = c.getHeight();
            if(       y >= yC-TOL   && y <= yC+TOL && x >= xC-TOL   && x <= xC+TOL ){
                c.setCursor(new Cursor(Cursor.NW_RESIZE_CURSOR));
            }else if( y >= yC-TOL   && y <= yC+TOL && x >= xC-TOL+w && x <= xC+TOL+w ){
                c.setCursor(new Cursor(Cursor.NE_RESIZE_CURSOR));
            }else if( y >= yC-TOL+h && y <= yC+TOL+h && x >= xC-TOL   && x <= xC+TOL ){
                c.setCursor(new Cursor(Cursor.SW_RESIZE_CURSOR));
            }else if( y >= yC-TOL+h && y <= yC+TOL+h && x >= xC-TOL+w && x <= xC+TOL+w ){
                c.setCursor(new Cursor(Cursor.SE_RESIZE_CURSOR));
            }else if( x >= xC-TOL   && x <= xC+TOL ){
                c.setCursor(new Cursor(Cursor.W_RESIZE_CURSOR));
            }else if( y >= yC-TOL   && y <= yC+TOL ){
                c.setCursor(new Cursor(Cursor.N_RESIZE_CURSOR));
            }else if( x >= xC-TOL+w && x <= xC+TOL+w ){
                c.setCursor(new Cursor(Cursor.E_RESIZE_CURSOR));
            }else if( y >= yC-TOL+h && y <= yC+TOL+h ){
                c.setCursor(new Cursor(Cursor.S_RESIZE_CURSOR));
            }else{
                c.setCursor(new Cursor(Cursor.MOVE_CURSOR));
    public void mouseReleased(final MouseEvent e) { hitPanel = null; }
    public void mouseClicked(final MouseEvent e) {}
    public void mouseEntered(final MouseEvent e) {}
    public void mouseExited(final MouseEvent e) {}
    public void setAdding(final String string) {
        adding = string;
        setCursor(new Cursor(Cursor.HAND_CURSOR));
    public void setPalette(final JPanel panel) { palette = panel; }
class SubPanel extends JPanel {
    public SubPanel(final String name) {
        setPreferredSize(new Dimension(100, 100));
        setBorder(new TitledBorder(new LineBorder(Color.BLACK), name));
}This application works with JFrame, but I want to display the JFrame in a webapplication (JSP Page).
I'm using Netbeans 6.0 (GlassFish) to create webapplication using Visual Web JavaServer Faces.
So in summary:
How can i display the drag and drop application into a JFrame (better in a JPanel) in a webapplication (index.jsp)??
Hope you can help...
Thanks in advance...
Greetings,
Rajsh

So have an applet that opens a JFrame... JSP or not has nothing to do with it, since it's nothing but HTML the client gets.
You can't have a JFrame embedded in an HTML page. And if you could have an applet but don't know how to get that copied code to fit inside (I mean, content pane is content pane), you might want to consider learning how to do that.

SSO from SAPJ2EE to Non-SAP Java Applications

Hello,
does anybody know, if there is a newer version of MySapSsoSupport-0.5.tar.gz
This enables Single Sign-On from SAP J2EE Engine/EP to Non-SAP Java Applications.
Thanks in advance.
Guenter

Hi Guenther
I am not aware of this MySapSsoSupport package. As far as I am aware the only supported scenarios for SSO to non-SAP Systems are listed here:
http://help.sap.com/saphelp_nwpi71/helpdata/de/12/9f244183bb8639e10000000a1550b0/content.htm

The following is working as a Java application but not as a DynPro App

Hello,
Please have a look at the following code:
URL testURL = new URL("http://<host>/error.txt");
HttpURLConnection c = (HttpURLConnection)(testURL.openConnection());
c.setDoInput(true);
c.setDoOutput(true);
c.setRequestProperty("Connection","Keep-Alive");
c.setRequestProperty("Proxy-Connection","Keep-Alive");
c.setRequestMethod("GET");
c.setUseCaches(false);
c.connect();
int cl = c.getContentLength();
DataInputStream dis = new DataInputStream(c.getInputStream());
This code is working well when I run it as an independent Java application but when I "plant" this code on a DynPro application I receive an I/O Exception at this line:
DataInputStream dis = new DataInputStream(c.getInputStream());
Can anyone please tell me why?

503 error means a bit different thing. See http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
<i><b>10.5.4 503 Service Unavailable</b>
The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication is that this is a temporary condition which will be alleviated after some delay. If known, the length of the delay MAY be indicated in a Retry-After header. If no Retry-After is given, the client SHOULD handle the response as it would for a 500 response.
Note: The existence of the 503 status code does not imply that a server must use it when becoming overloaded. Some servers may wish to simply refuse the connection.
</i>
Can you track requests from both stand-alone Java and WD application via some HTTP tunneling tool to check differences in headers, encoding, etc?
VS

Java application problem

I am using JDK1.4 and working on Windows Xp.
I have written a code for application in java as follows:
import javax.swing.*;
public class sample
JPanel panel;
static JFrame frame;
JButton but;
public sample()
frame=new JFrame("frame");
panel=new JPanel();
frame.getContentPane().add(panel);
but=new JButton("click");
panel.add(but);
public static void main(String args[])
sample s=new sample();
frame.setSize(300,300);
frame.setVisible(true);
on executing program application window has appeared and it ran properly.
Then I closed that application window.But after that in command prompt window curser was just blinking and it was not allow to enter also.
I have tried pressing CTRL+C also.But situation in command prompt was same i.e curser in command prompt was just blinking.
Then I closed cmd window ;but one error has occured saying that cmd window can not close .
My friend has told me that she is also having windows xp and JDK1.4 ; ctrl+c is working properly in her command prompt.She has written the above same code in her computer and it executes properly.
Even though she has not written following statement:
"frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);"
when she exits from application window ,her cmd window gave same problem of only blinking curser.But when she press CTRL+C ; her command prompt starts responding by giving root.But my command prompt is not giving
positive responce to "ctrl+c" when I am exiting java application.
Is it possible to solve this problem without giving statement
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); ?
Why my command prompt is not responding to CTRL+c?
How can I tackle this problem ?
Is there any other key which can be used in command prompt of Windows Xp?

Is it possible to solve this problem without giving
statement
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
?this is because Swing have started some non-daemon helper threads for its internal purposes and the default close operation for frame is just HIDE_ON_CLOSE. So, the system will not exit because those non-daemon thread still not terminated.
What is the problems setting the default close operation to JFrame.EXIT_ON_CLOSE ?

Java application crashes due to some problem in native code

Hi All
I have a Java application that calls APIs in a 3rd party DLL(I don't have access to its source code or logs) through my VC++ DLL(Win32) that acts as the wrapper DLL.
The Application has many functionalities and is based on multithreading (both on Java layer as well as C++ layer). Most of the functionalities are working , but when I try to close the application, it crashes.
Moreover the crashing occurs inconstently, sometimes it does not crash. Instead of showing any debug information , it simply creates a error file with disassembly code that I am not able to understand.
Though the error seems like an java error, but actually it seems to be due to native code. I have try catch blocks in my code and also implemented settranslator functionality to get hold of structured/C exceptions. But still I am not able to catch any exceptions.
I am pasting the the contents of the file here:
# An unexpected error has been detected by HotSpot Virtual Machine:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7c9111de, pid=488, tid=1848
# Java VM: Java HotSpot(TM) Client VM (1.4.2_14-b05 mixed mode)
# Problematic frame:
# C [ntdll.dll+0x111de]
--------------- T H R E A D ---------------
Current thread (0x009d1790): JavaThread "CompilerThread0" daemon [_thread_in_native, id=1848]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000001
Registers:
EAX=0x00000001, EBX=0x00030000, ECX=0x02d17a18, EDX=0x00030278
ESP=0x02c2f8e8, EBP=0x02c2fb08, ESI=0x02d17a10, EDI=0x00000001
EIP=0x7c9111de, EFLAGS=0x00010202
Top of Stack: (sp=0x02c2f8e8)
0x02c2f8e8: 009fa9a0 000000c0 00000008 0811d3d8
0x02c2f8f8: 0000000c 00a2c0e0 00000003 00000004
0x02c2f908: 08018216 00000001 02c2fcc4 08018385
0x02c2f918: 00000002 00000001 02c2f93c 02d06d0c
0x02c2f928: 0802a50a 00000000 00000001 02c2f93c
0x02c2f938: 04a3cb4c 02d01008 02c2f964 0802a850
0x02c2f948: 02c2f96e 00000000 00000007 00000000
0x02c2f958: 04a3cb38 00000004 08018216 00000001
Instructions: (pc=0x7c9111de)
0x7c9111ce: 39 89 bd 0c ff ff ff 8b 46 0c 89 85 68 ff ff ff
0x7c9111de: 8b 10 3b 57 04 0f 85 8c 31 02 00 3b d1 0f 85 84
Stack: [0x02bf0000,0x02c30000), sp=0x02c2f8e8, free space=254k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ntdll.dll+0x111de]
C [MSVCRT.dll+0x1c3c9]
C [MSVCRT.dll+0x1c3e7]
C [MSVCRT.dll+0x1c42e]
V [jvm.dll+0xacda9]
V [jvm.dll+0x17102]
V [jvm.dll+0x16c8d]
V [jvm.dll+0x16dca]
V [jvm.dll+0x170a7]
V [jvm.dll+0x172e8]
V [jvm.dll+0x4dc65]
V [jvm.dll+0x4d894]
V [jvm.dll+0xd3a36]
V [jvm.dll+0xd3a04]
C [MSVCRT.dll+0x2a3b0]
C [kernel32.dll+0xb683]
Current CompileTask:
HotSpot Client Compiler:423 b sun.awt.AWTAutoShutdown.isReadyToShutdown()Z (33 bytes)
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x049d6328 JavaThread "Thread-19" [_thread_blocked, id=1440]
0x049d24d0 JavaThread "Thread-18" [_thread_blocked, id=3620]
0x049d40c8 JavaThread "Thread-17" [_thread_blocked, id=2476]
0x02df0538 JavaThread "TimerQueue" daemon [_thread_blocked, id=3876]
0x00036a78 JavaThread "DestroyJavaVM" [_thread_blocked, id=2448]
0x02e43768 JavaThread "Thread-6" [_thread_blocked, id=3664]
0x02e23130 JavaThread "Thread-4" [_thread_blocked, id=2816]
0x02e21d08 JavaThread "Thread-2" [_thread_blocked, id=3344]
0x02da3f78 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=2528]
0x02da3268 JavaThread "AWT-EventQueue-0" [_thread_in_native, id=4008]
0x02d91f90 JavaThread "AWT-Windows" daemon [_thread_blocked, id=648]
0x02d3a478 JavaThread "AWT-Shutdown" [_thread_blocked, id=2988]
=>0x009d1790 JavaThread "CompilerThread0" daemon [_thread_in_native, id=1848]
0x009d0a90 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3568]
0x009ce128 JavaThread "Finalizer" daemon [_thread_blocked, id=1824]
0x009ccda0 JavaThread "Reference Handler" daemon [_thread_blocked, id=3280]
Other Threads:
0x00a0b6e8 VMThread [id=608]
0x00a0d620 WatcherThread [id=3012]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 640K, used 583K [0x10010000, 0x100c0000, 0x104f0000)
eden space 576K, 90% used [0x10010000, 0x10091e40, 0x100a0000)
from space 64K, 99% used [0x100b0000, 0x100bfff8, 0x100c0000)
to space 64K, 0% used [0x100a0000, 0x100a0000, 0x100b0000)
tenured generation total 7772K, used 5451K [0x104f0000, 0x10c87000, 0x14010000)
the space 7772K, 70% used [0x104f0000, 0x10a42d80, 0x10a42e00, 0x10c87000)
compacting perm gen total 8192K, used 8137K [0x14010000, 0x14810000, 0x18010000)
the space 8192K, 99% used [0x14010000, 0x148024e8, 0x14802600, 0x14810000)
Dynamic libraries:
0x00400000 - 0x0040b000 c:\dcsthick\jre\bin\java.exe
0x7c900000 - 0x7c9b0000 C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c8f5000 C:\WINDOWS\system32\kernel32.dll
0x77dd0000 - 0x77e6b000 C:\WINDOWS\system32\ADVAPI32.dll
0x77e70000 - 0x77f01000 C:\WINDOWS\system32\RPCRT4.dll
0x77c10000 - 0x77c68000 C:\WINDOWS\system32\MSVCRT.dll
0x08000000 - 0x08143000 c:\dcsthick\jre\bin\client\jvm.dll
0x7e410000 - 0x7e4a1000 C:\WINDOWS\system32\USER32.dll
0x77f10000 - 0x77f57000 C:\WINDOWS\system32\GDI32.dll
0x76b40000 - 0x76b6d000 C:\WINDOWS\system32\WINMM.dll
0x76390000 - 0x763ad000 C:\WINDOWS\system32\IMM32.DLL
0x10000000 - 0x10007000 c:\dcsthick\jre\bin\hpi.dll
0x76bf0000 - 0x76bfb000 C:\WINDOWS\system32\PSAPI.DLL
0x00390000 - 0x0039e000 c:\dcsthick\jre\bin\verify.dll
0x003b0000 - 0x003c9000 c:\dcsthick\jre\bin\java.dll
0x003d0000 - 0x003de000 c:\dcsthick\jre\bin\zip.dll
0x02e70000 - 0x02f84000 C:\dcsthick\jre\bin\awt.dll
0x73000000 - 0x73026000 C:\WINDOWS\system32\WINSPOOL.DRV
0x774e0000 - 0x7761d000 C:\WINDOWS\system32\ole32.dll
0x5ad70000 - 0x5ada8000 C:\WINDOWS\SYSTEM32\uxtheme.dll
0x02fe0000 - 0x03031000 C:\dcsthick\jre\bin\fontmanager.dll
0x73760000 - 0x737a9000 C:\WINDOWS\system32\ddraw.dll
0x73bc0000 - 0x73bc6000 C:\WINDOWS\system32\DCIMAN32.dll
0x73940000 - 0x73a10000 C:\WINDOWS\system32\D3DIM700.DLL
0x74720000 - 0x7476b000 C:\WINDOWS\system32\MSCTF.dll
0x755c0000 - 0x755ee000 C:\WINDOWS\system32\msctfime.ime
0x03320000 - 0x0333c000 C:\dcsthick\lib\CrewsDmApiJniNt.dll
0x031b0000 - 0x031bb000 c:\dcsthick\lib\CRWNT_DM.dll
0x03240000 - 0x03249000 c:\dcsthick\lib\BAT_API.dll
0x03340000 - 0x03352000 c:\dcsthick\lib\DC_DSM32.dll
0x03360000 - 0x03369000 c:\dcsthick\lib\CRWTOOLS.dll
0x77c00000 - 0x77c08000 C:\WINDOWS\system32\VERSION.dll
0x03370000 - 0x0337a000 c:\dcsthick\lib\PMAPI.dll
0x5d090000 - 0x5d12a000 C:\WINDOWS\system32\COMCTL32.dll
0x03790000 - 0x037b2000 c:\dcsthick\ResaDLL\DC_DSMNB.dll
0x5b860000 - 0x5b8b4000 C:\WINDOWS\system32\NETAPI32.dll
0x038d0000 - 0x038f2000 c:\dcsthick\ResaDLL\DC_DSMIP.dll
0x71ad0000 - 0x71ad9000 C:\WINDOWS\system32\WSOCK32.dll
0x71ab0000 - 0x71ac7000 C:\WINDOWS\system32\WS2_32.dll
0x71aa0000 - 0x71aa8000 C:\WINDOWS\system32\WS2HELP.dll
0x71a50000 - 0x71a8f000 C:\WINDOWS\system32\mswsock.dll
0x662b0000 - 0x66308000 C:\WINDOWS\system32\hnetcfg.dll
0x71a90000 - 0x71a98000 C:\WINDOWS\System32\wshtcpip.dll
0x76f20000 - 0x76f47000 C:\WINDOWS\system32\DNSAPI.dll
0x76fb0000 - 0x76fb8000 C:\WINDOWS\System32\winrnr.dll
0x76f60000 - 0x76f8c000 C:\WINDOWS\system32\WLDAP32.dll
0x66580000 - 0x6658f000 C:\WINDOWS\system32\pnrpnsp.dll
0x76fc0000 - 0x76fc6000 C:\WINDOWS\system32\rasadhlp.dll
0x032e0000 - 0x0330a000 C:\dcsthick\lib\ResaHostConnection.dll
0x03250000 - 0x03257000 c:\dcsthick\lib\CRWNT_GWALC.dll
0x03310000 - 0x03319000 c:\dcsthick\lib\ALCAPI.dll
0x763b0000 - 0x763f9000 C:\WINDOWS\system32\comdlg32.dll
0x77f60000 - 0x77fd6000 C:\WINDOWS\system32\SHLWAPI.dll
0x7c9c0000 - 0x7d1d7000 C:\WINDOWS\system32\SHELL32.dll
0x773d0000 - 0x774d3000 C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2982_x-ww_ac3f9c03\comctl32.dll
VM Arguments:
jvm_args: -Dcfdynaproppath=c:\dcsthick/config/ -Dcfdynapropxml=RESA_KCOdynamicproperties.xml -DConfigPath=c:\dcsthick/config/RESA_KCOConfig.xml -DResolution=High -DWorkstationID=GWGTE -DMode=GateBoarding -DlogPath=c:\temp\kcologs -DlogInformation=0 -DGateway=ALCSQ1 -DNetBiosPort=A
java_command: com.singaporeair.dcs.standalone.application.model.ApplicationModel SQ/IGATEADXX
Launcher Type: SUN_STANDARD
Environment Variables:
JAVA_HOME=c:\dcsthick\jre\bin
PATH=c:\dcsthick\jre\bin;c:\dcsthick/lib;c:\dcsthick/ResaDLL
USERNAME=USER
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 15 Stepping 13, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows XP Build 2600 Service Pack 2
CPU:total 2 family 6, cmov, cx8, fxsr, mmx, sse, sse2
Memory: 4k page, physical 1039600k(565656k free), swap 2501208k(2091128k free)
vm_info: Java HotSpot(TM) Client VM (1.4.2_14-b05) for windows-x86, built on Mar 14 2007 16:46:11 by "java_re" with MS VC++ 6.0
The JAVA Application during initialisation establishes a connection with the host server for various devices. For each of the device it establishes a separate connection and keeps listening on these connections using multithreading.
During App close, we need to close each of these connections one by one for each device.
The opening /closing of connection is done by 3rd party DLL and call to there APIs is done through a C++ Wrapper DLL that I have built between the Java layer and their DLL.
When we close the Application, I am always able to close the connections on the first 2 devices. Then all of a sudden it crashes either for the 3rd device conn. close or for the 4th one. The code is the same for all the devices . That too sometimes it just goes fine without crashing. If its a null pointer exception, why is it that it crashes on some occassions and not in other times. More importantly, why is it that it does not fail for the first 2 devices , but fails for the 3rd or 4th device connection close?
Can please anyone help me. Please suggest me as to how I can determine the cause of the error.
And is this error really coming in ntdll.dll or is it getting caused of my dll?

The opening /closing of connection is done by 3rd party DLL and call to there APIs is done through a C++ Wrapper DLL that I have built between the Java layer and their DLL.The specific error indicates a pointer/memory problem.
The first place that is likely is in your code.
The second most likely place for the cause is because you are using the third party library incorrectly. For example before exiting you are supposed to clean up resources and you are not doing so.
As a remote possibility, much less likely that either of the above, there is a bug in jnative or in the 3rd party library.

The status of scheduled report in java application ?

Post Author: Jay_Misys
CA Forum: JAVA
My java application is running on application server (websphare / java application server)
I schduled the report published on crystal report server
the java code is like:
BIPlatform bipService = new BIPlatform(new Connection(new URL(servicesURL + "/biplatform")), oSession.getConnectionState());
ResponseHolder rh=bipService.get("path://InfoObjects/"+sCrystal_Reports_Folder + reportName +
"@SI_SCHEDULEINFO,SI_PROCESSINFO" ,oGetOptions);
InfoObjects oInfoObjects = rh.getInfoObjects();
CrystalReport oCrystalReport = (CrystalReport)oInfoObjects.getInfoObject(0);
SchedulingInfo schedulingInfo = oCrystalReport.getSchedulingInfo();
schedulingInfo.setRightNow(Boolean.TRUE);
oCrystalReport.setPluginProcessingInterface(procInfo);
oInfoObjects.setInfoObject(0,oCrystalReport);
bipService.schedule(oInfoObjects);
Pls help me to get the status (running / sucessfully generated/ failed etc...) of scheduled report ?

out = new FileOutputStream(matcher.group(1)+".open" , true);
                      FileChannel ch = out.getChannel();
                                   FileLock lock = ch.lock(0L, Long.MAX_VALUE, false);
                               // Connect print stream to the output stream
                                   p = new PrintStream( out );
                        p.println ("\n" + parms.getProperty( value ) + "\n");
                              p.flush();
                        p.close();
                              lock.release();Ok, I tried implementing locks but I dont know why it is not working...An exception is thrown and nothing is wriiten to the file. I have employed a complete lock on the file so that no other JVM application can use it.
Actually this is a server that grabs data sent from an Iframe and writes it down to a temp file. I open a file input stream, lock it and then use a printwriter strream to write the realyed data to the file. Any inputs as to what is wrong with the code snippet above?????

Java application to act as background job on SAP J2EE server

Hi Folks,
I have a java class(assume, ClassA) in a DC. This class has a method to call a Web Service.
I have to create one more DC, which contains my Java application.
This application should make calls to ClassA's method after every 15 minutes.
I guess I will have to create a servlet for this. Also, I think I can use java.util.Timer for making the regular calls.
Can you please suggest me the ways to proceed on this?
Thanks.

Thanks, Frank.
Yes, we too have a cluster environment. In our case, this scheduler has to run only on one server node.
As per the technical requirements, I went ahead with a Servlet application.
The scheduler is running fine, except one problem.
I need to call an EJB method deployed on the same server.
Below is the code snippet.
InitialContext ctx = new InitialContext();
MyEjbLocalHome objLocalHome = (MyEjbLocalHome) ctx.lookup("localejbs/my.com/abc~myearDC/MyEjbBean");
I am getting ClassCastException at the above line.
I am sure that the local home interface is correct and belongs to the same EJB.
Can you please help me with this?

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