How to catch exception into a String variable ?

I have a code
catch(Exception e)
            e.printStackTrace();
            logger.error("\n Exception in method Process"+e.getMessage());
        }when i open log i find
Exception in method Process null.
But i get a long error message in the server console !! I think thats coming from e.printStackTrace().
can i get the error message from e.printStackTrace() into a String variable ?
I want the first line of that big stacktrace in a String variable.
How ?

A trick is to issue e.printStackTrace() against a memory-based output object.
void      printStackTrace(PrintStream s)
         // Prints this throwable and its backtrace to the specified print stream.
void      printStackTrace(PrintWriter s)
//          Prints this throwable and its backtrace to the specified print writer.Edited by: BIJ001 on Oct 5, 2007 8:54 AM

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How to assign a " into a string variable??

say, String s="i am a 'cat'", what if i want to replace the ' with " ??
thanks !

Use the backslash escape character before the QUOTE.
String s = "i am a \"cat\"";

How can I put all output error message into a String Variable ??

Dear Sir:
I have following code, When I run it and I press overflow radio button, It outputs following message:
Caught RuntimeException: java.lang.NullPointerException
java.lang.NullPointerException
     at ExceptionHandling.ExceptTest.actionPerformed(ExceptTest.java:72)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
     at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
     at javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:291)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
     at java.awt.Component.processMouseEvent(Component.java:6038)
     at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
     at java.awt.Component.processEvent(Component.java:5803)
     at java.awt.Container.processEvent(Container.java:2058)
     at java.awt.Component.dispatchEventImpl(Component.java:4410)
     at java.awt.Container.dispatchEventImpl(Container.java:2116)
     at java.awt.Component.dispatchEvent(Component.java:4240)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
     at java.awt.Container.dispatchEventImpl(Container.java:2102)
     at java.awt.Window.dispatchEventImpl(Window.java:2429)
     at java.awt.Component.dispatchEvent(Component.java:4240)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)Caught RuntimeException: java.lang.NullPointerException
     at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)I hope to catch all these error message into a String Variable such as StrErrorMsg, then I can use System.out.println(StrErrorMsg) to print it out or store somewhere, not only display at runtime,
How can I do this??
Thanks a lot,
See code below.
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.FileInputStream;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
public class ExceptTest extends JFrame implements ActionListener {
    private double[] a;
private JRadioButton divideByZeroButton;
private JRadioButton badCastButton;
private JRadioButton arrayBoundsButton;
private JRadioButton nullPointerButton;
private JRadioButton negSqrtButton;
private JRadioButton overflowButton;
private JRadioButton noSuchFileButton;
private JRadioButton throwUnknownButton;
public ExceptTest() {
    JPanel p = new JPanel();
    ButtonGroup g = new ButtonGroup();
    p.setLayout(new GridLayout(8, 1));
    divideByZeroButton = addRadioButton("Divide by zero", g, p);
    badCastButton = addRadioButton("Bad cast", g, p);
    arrayBoundsButton = addRadioButton("Array bounds", g, p);
    nullPointerButton = addRadioButton("Null pointer", g, p);
    negSqrtButton = addRadioButton("sqrt(-1)", g, p);
    overflowButton = addRadioButton("Overflow", g, p);
    noSuchFileButton = addRadioButton("No such file", g, p);
    throwUnknownButton = addRadioButton("Throw unknown", g, p);
    getContentPane().add(p);
private JRadioButton addRadioButton(String s, ButtonGroup g, JPanel p) {
    JRadioButton button = new JRadioButton(s, false);
    button.addActionListener(this);
    g.add(button);
    p.add(button);
    return button;
public void actionPerformed(ActionEvent evt) {
    try {
      Object source = evt.getSource();
      if (source == divideByZeroButton) {
        a[1] = a[1] / a[1] - a[1];
      } else if (source == badCastButton) {
        Frame f = (Frame) evt.getSource();
      } else if (source == arrayBoundsButton) {
        a[1] = a[10];
      } else if (source == nullPointerButton) {
        Frame f = null;
        f.setSize(200, 200);
      } else if (source == negSqrtButton) {
        a[1] = Math.sqrt(-1);
      } else if (source == overflowButton) {
        a[1] = 1000 * 1000 * 1000 * 1000;
        int n = (int) a[1];
      } else if (source == noSuchFileButton) {
        FileInputStream is = new FileInputStream("Java Source and Support");
      } else if (source == throwUnknownButton) {
        throw new UnknownError();
    } catch (RuntimeException e) {
      System.out.println("Caught RuntimeException: " + e);
      e.printStackTrace();
      System.out.println("Caught RuntimeException: " + e);
    } catch (Exception e) {
      System.out.println("Caught Exception: " + e);
public static void main(String[] args) {
    JFrame frame = new ExceptTest();
    frame.setSize(150, 200);
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
    frame.show();
}

yes, I update as follows,
but not looks good.
import java.io.*;
public class UncaughtLogger implements Thread.UncaughtExceptionHandler {
    private File file;
    private static String errorMessage;
    public UncaughtLogger(File file) {
        this.file = file;
        //Thread.setDefaultUncaughtExceptionHandler(this);
    public UncaughtLogger(String str) {
        this.errorMessage = str;
        Thread.setDefaultUncaughtExceptionHandler(this);
    //@Override()
    public void uncaughtException(Thread t, Throwable e){
        try {
            log(e);
        } catch (Throwable throwable) {
            System.err.println("error in logging:");
            throwable.printStackTrace();
    private void log(Throwable e) throws IOException {
        PrintWriter out = new PrintWriter(new FileWriter(file, true));
        try {
            e.printStackTrace(out);
        } finally {
            out.close();
    private static UncaughtLogger logger = new UncaughtLogger(new File("C:/temp/log.txt"));
    private static UncaughtLogger logger2 = new UncaughtLogger(errorMessage);
    public static void main(String[] args) {
            String s1 = "Hello World!";
            s1 = null;
            String s2 = s1.getClass().getName();
            System.out.println(s1);
            System.out.println(s2);
            System.out.println("errorMessage =" + errorMessage);
}

How do I pass single quotes into a string variable?

Thanks for any help?
Example
Select xdat, yday
from foo
where
xdat = to_char(sysdate, 'mm/dd/yyyy')
How do I pass the single quoted stuff above into a string variable?

Thank you but that is not the same thing. I am building a dynamic sql statement and need to pass the quoted material into a statement that is quoted Is that not what my example above shows?
My example above has a quoted string inside a string. I think this is exactly what you were asking for.

How to store serval char variables into a string variable?

I have serval char variables, but i don't know how to put them together (without using arrays). I am thinking to store these char variables into a string variable but i don't know how to do it. For example,
char letter1 = 'a', letter2 = 'b', letter3 = 'c';
String letters;
then how can i do to make letters = "abc" from using letter1,2,3?
I am just a beginner of Java, if anyone can help me, i will appreciate that very much!!!

String letters=""+leter1+letter2+letter3;is fine and dandy. What it actually compiles to is
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How to compare numbers in a string variable?

I have a powershell script that is grabbing the output of a website and storing it into a string variable. What I would like to do is check a line in the output which contains two numbers - the number of emails sent out of the total number of emails.
I have not come up with a way to do this that works. I was thinking of maybe using a regex, but there are other numbers I don't care about that keep getting caught.
Here is a sample of what is contained in the string variable:
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Email ID: 46862272 : Succeded. Time Taken: 00:00:00.0493887
-- Sent 250 of 250 emails successfully. Total Dispatch Time: 00:00:08.1406995
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I would want the check to return 10. Is this even possible?
Any help is appreciated!

Sure.
$String = @'
Email ID: 46865840 : Succeded. Time Taken: 00:00:00.9333887
-- Sent 207 of 217 emails successfully. Total Dispatch Time: 00:00:01.2416905
--State Written to DB. Time Taken for DB Write: 00:00:00.0402957
if ( $string -match 'Sent (\d+) of (\d+) emails .+' )
{ $FailedEmailCount = [int]$matches[2] - $matches[1] }
$FailedEmailCount
10
Each set of parens will designate a capture group, and those can be referenced from $Matches after a successful -match.
Just remember that they will all be strings, and to do a math operation you have to cast at least the one on the LH side to a numeric type first.
[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

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how to catch exception in JSP?
I use JDeveloper 3.1
I use connection with database .
When I insert record in database
when have duplicate of primary key
how to catch this exception and
back to previous page?
I trying with folowing:
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<% try {
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RowEditor.setReleaseApplicationResources(true);
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catch(Exception e) {
%>
<script>
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history.back();
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<% } %>
but i't not working
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try
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Assign sysdate into a string variable ?

Hi
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Merlina

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Jamil,
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hei evryone!
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something like this will convert string to byte[]
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you want to convert following.
656667 => ABC
String toConvert = "656667";
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String FinalStr = new String(returnVal);
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byte[] byteRet = new byte[Result.length()/2];
int k=0;
for (int j=0; j<(Result.length()); j+=2)
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Integer I = new Integer (0);
I = I.decode ("0x"+Result.substring(j, j+2));
int i = I.intValue ();
if (i > 127)
i = i - 256;
byteRet[k++] = new Integer(i).byteValue();
catch(Exception e)
System.err.println(e);
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}// String2byteArr
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I want to read the content of a text file dropped in a watched folder into a string variable

I have a workbench process with 2 variable.
inDoc (DataType=Document/input/required)
outStr (DataType = String/output)
The document being passed to the workflow is a text file with 4 lines of text in it. when the text file is dropped into the watched folder, it will be assigned to the inDoc parameter in the workflow.
My workflow needs to extract the 4 lines of text and write it into a string (outStr).
Id like to use the FileUtilsService.ReadString service but i can't since its input parameter is the file path. When i do, i get the following error...
Caused by: ALC-FUT-001-011: File rO0ABXNyABZjb20uYWRvYmUuaWRwLkRvY3VtZW50yAEFUxsO+CEDACNJAAtfY2FsbGJhY2tJZFoADV9kZXNlcmlhb Gl6ZWRJABBfZGlzcG9zYWxUaW1lb3V0WgAJX2Rpc3Bvc2VkWgAZX2lzRGlzcG9zYWxUaW1lb3V0RGVmYXVsdFoAE19 pc1RyYW5zYWN0aW9uQm91bmRKAAdfbGVuZ3RoSQAOX21heElubGluZVNpemVaAAhfb3duRmlsZVoAC19wYXNzaXZhd GVkWgALX3BlcnNpc3RlbnRJABFfc2VuZGVyQ2FsbGJhY2tJZFoAEV9zZW5kZXJQYXNzaXZhdGVkWgARX3NlbmRlclB lcnNpc3RlbnRJAA5fc2VuZGVyVmVyc2lvbkkABl9zdGF0ZUwAC19hdHRyaWJ1dGVzdAATTGphdmEvdXRpbC9IYXNoT WFwO0wACF9jYWNoZUlkdAAfTGNvbS9hZG9iZS9pZHAvRG9jdW1lbnRDYWNoZUlEO0wADF9jYWxsYmFja1JlZnQAIUx jb20vYWRvYmUvaWRwL0lEb2N1bWVudENhbGxiYWNrO0wADF9jb250ZW50VHlwZXQAEkxqYXZhL2xhbmcvU3RyaW5nO 0wAC19kYXRhQnVmZmVydAAeTGNvbS9hZG9iZS9zZXJ2aWNlL0RhdGFCdWZmZXI7TAAPX2V4cGlyYXRpb25UaW1ldAA QTGphdmEvbGFuZy9Mb25nO0wABV9maWxldAAOTGphdmEvaW8vRmlsZTtMABBfZ2xvYmFsQmFja2VuZElkdAAhTGNvb S9hZG9iZS9pZHAvRG9jdW1lbnRCYWNrZW5kSUQ7WwAHX2lubGluZXQAAltCTAAMX2lucHV0U3RyZWFtdAAVTGphdmE vaW8vSW5wdXRTdHJlYW07TAAPX2xvY2FsQmFja2VuZElkcQB+AAhMAAxfcHVsbFNlcnZhbnR0ACRMY29tL2Fkb2JlL 2lkcC9JRG9jdW1lbnRQdWxsU2VydmFudDtMABFfcmFuZG9tQWNjZXNzRmlsZXQAGkxqYXZhL2lvL1JhbmRvbUFjY2V zc0ZpbGU7TAAVX3NlbmRlckNhbGxiYWNrUmVmSU9ScQB+AARMABZfc2VuZGVyR2xvYmFsQmFja2VuZElkcQB+AAhMA A1fc2VuZGVySG9zdElkcQB+AARMABVfc2VuZGVyTG9jYWxCYWNrZW5kSWRxAH4ACEwAGl9zZW5kZXJQdWxsU2VydmF udEpuZGlOYW1lcQB+AARMAARfdXJsdAAOTGphdmEvbmV0L1VSTDt4cHcGAAAAAwAAcHd1AHMwOjA6MDowOjA6MDowO jEvMTI3LjAuMC4xLy8vLy8vLy8vZmU4MDowOjA6MDo3NDMyOmU0OWQ6NmUzMToxNTU0JTEwLzEwLjI0LjIzOS4xMjY vZmU4MDowOjA6MDowOjVlZmU6YTE4OmVmN2UlMTEvLy8vdXIAAltCrPMX+AYIVOACAAB4cAAAAcRJTU01MjU3XzAxL TIwMTFfMXwwMXx8YXx8fHxGZW1hbGV8MjAwMHw2fDh8Y3wyNTZ8MjU2fDkxMnwwMXx8fHx8fHx8Tnx8fHx8fHx8fHx 8fHx8fHx8fHxZfHx8fHx8fHx8fDAyfHx8fHx8TnwyMDEyfDJ8MTR8DQpJTU01MjU3XzAxLTIwMTFfMnx8fHx8fHx8f Hxhc2RmfDI1NnwyMDEyfDAyfDAxfDIwMTJ8MDN8MDJ8fHx8YXxhfDI1Mnx8fHxZfHx8fHx8fHx8fHx8fHx8DQpJTU0 1MjU3XzAxLTIwMTFfM3xOfHx8fHx8fHx8fDIwMDB8Nnx8fGFzZGZ8YXNkZnxhc2RmfDI1Nnx8fHx8fHx8fHx8fHx8f Hx8fHx8DQpJTU01MjU3XzAxLTIwMTFfNHxOfE58fE58TnxOfHxOfE58fE58TnxOfA0KSU1NNTI1N18wMS0yMDExXzV 8U2luZ2xlfDAxfHwyMDEyfDAyfDE4fDIwMTJ8MDN8MDN8MjM0fGFzZGZ8fGFzZGZhc3x8fHxFeGNoYW5nZS1Qcm8uO S40MDEuRnVsbC5XSU4uZW5fQ0EuRU5VLTEwLTIwMTF8DQoNCnBwdwYAAAAAAAB0AAp0ZXh0L3BsYWlucHNyABFqYXZ hLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9hZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAx3CAAAABAAA AADdAAKd3NmaWxlbmFtZXQAJ0M6XFVzZXJzXENodWxseS5QYXJrXERlc2t0b3BcaGRzY2FuLnR4dHQACGJhc2VuYW1 ldAAKaGRzY2FuLnR4dHQABGZpbGVxAH4AFXh3NwAtYWRvYmUvaWRwL0RvY3VtZW50UHVsbFNlcnZhbnQvYWRvYmVqY l9MQ19ERVYx//////////94 does not exist.
at com.adobe.livecycle.fileutils.FileUtilsService.readDocument(FileUtilsService.java:363)
which is what i expected...
I've also tried with the Script.executeScript to call some java code but im not too strong in java and in all the examples i find, the file pointer requires a file path.
import java.io.*;
FileInputStream f = new FileInputStream(patExecContext.getProcessDataValue("/process_data/inDoc"));
OR
File f = new File(patExecContext.getProcessDataValue("/process_data/inDoc"));
OR
File f = patExecContext.getProcessDataValue("/process_data/inDoc");
Any clue how to resolve my problem?

Try the following code snippet to read the String content from the file recieved through watched folder endpoint.
com.adobe.idp.Document inputDoc = patExecContext.getProcessDataDocumentValue("/process_data/inDoc");
java.io.InputStream inStream = inputDoc.getInputStream();
byte[] dataBuffer = new byte[inStream.available()];
inStream.read(dataBuffer);
String strData = new String(dataBuffer);
patExecContext.setProcessDataStringValue("/process_data/outStr",strData);
The code is not tested, hence if you find any mistakes, correct and test the functionality.
Nith

How to catch exception while validating the username and password in hbm

Hi,
I do want to set the username and password dynamically in hibernate.cfg.xml
Here below is my configuration file.
{code<hibernate-configuration>
<session-factory>
       <property name="hibernate.bytecode.use_reflection_optimizer">false</property>
       <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
       <property name="hibernate.connection.pool_size">10</property>
       <property name="show_sql">true</property>
       <property name="hibernate.dialect">org.hibernate.dialect.OracleDialect</property>
       <property name="hibernate.hbm2ddl.auto">update</property>
       <property name="current_session_context_class">thread</property>
       <property name="show_sql">true</property>
     </session-factory>
</hibernate-configuration>{code}
Also im getting that session factory object like the below code.
public class Sessions {        private static SessionFactory sessionFactory;      private static Configuration configuration = new Configuration();        static {          try {              String userName = GuigenserviceImpl.userName;              String password = GuigenserviceImpl.password;              String hostName = GuigenserviceImpl.hostName;              String portNo = GuigenserviceImpl.portNo;              String sId = GuigenserviceImpl.sId;                  configuration                      .setProperty("hibernate.connection.username", userName);              configuration                      .setProperty("hibernate.connection.password", password);              configuration.setProperty("hibernate.connection.url",                      "jdbc:oracle:thin:@" + hostName + ":" + portNo + ":" + sId);                try {              configuration.configure("/hibernate.cfg.xml");              sessionFactory = configuration.buildSessionFactory();              GuigenserviceImpl.strAccpted = "true";              }              catch (Exception e) {                    e.printStackTrace();                  GuigenserviceImpl.strAccpted = "false";              }            }          catch (HibernateException hibernateException) {              GuigenserviceImpl.strAccpted = "false";              hibernateException.printStackTrace();          }          catch (Throwable ex) {                GuigenserviceImpl.strAccpted = "false";              ex.printStackTrace();              throw new ExceptionInInitializerError(ex);          }      }          public static SessionFactory getSessionFactory() {          return sessionFactory;      }
So, in this above scenario, suppose if im giving the wrong password means exception should be caught and the string variable "GuigenserviceImpl.strAccpted" should be assigned to false.
But im getting the SQL Exception only in console like wrong username and password. And finally i couldn't able to catch the exception in Sessions class, static block.
Anyone can help me in catching that SQL Exception in my Sessions class and i need to handle that SQL Exception in my class.
Im getting this following exception message in my console.
INFO: configuring from resource: /hibernate.cfg.xml Apr 6, 2009 2:47:00 PM org.hibernate.cfg.Configuration getConfigurationInputStream INFO: Configuration resource: /hibernate.cfg.xml Apr 6, 2009 2:47:00 PM org.hibernate.cfg.Configuration doConfigure INFO: Configured SessionFactory: null Apr 6, 2009 2:47:00 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: Using Hibernate built-in connection pool (not for production use!) Apr 6, 2009 2:47:00 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: Hibernate connection pool size: 10 Apr 6, 2009 2:47:00 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: autocommit mode: false Apr 6, 2009 2:47:00 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: using driver: oracle.jdbc.driver.OracleDriver at URL: jdbc:oracle:thin:@192.168.1.12:1521:orcl Apr 6, 2009 2:47:00 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: connection properties: {user=scott, password=****} Apr 6, 2009 2:47:01 PM org.hibernate.cfg.SettingsFactory buildSettings WARNING: Could not obtain connection metadata java.sql.SQLException: ORA-01017: invalid username/password; logon denied        at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)      at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:131)      at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:204)      at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:455)      at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:406)      at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399)      at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOauth(T4CTTIoauthenticate.java:799)      at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:368)      at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:508)      at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:203)      at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)      at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510)      at java.sql.DriverManager.getConnection(DriverManager.java:525)      at java.sql.DriverManager.getConnection(DriverManager.java:140)      at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110)      at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84)      at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2073)      at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1298)      at com.beyon.ezygui.server.Sessions.<clinit>(Sessions.java:39)      at com.beyon.ezygui.server.GuigenserviceImpl.testRPC(GuigenserviceImpl.java:322)      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
Thanks in advance.
Thanks & Regards,
Kothandaraman N.

Hi,
Myself hardcoded that username and password checking like the below code.
String name = loginData.get("userName").toString();
          String pswd = loginData.get("pswd").toString();
          String hstName = loginData.get("hName").toString();
          String prtNo = loginData.get("portNo").toString();
          String sid = loginData.get("sId").toString();
          SessionFactory sessionFactory = null;
          try {
               if (name.trim().equals(userName) && pswd.trim().equals(password)
                         && hstName.trim().equals(hostName)
                         && prtNo.trim().equals(portNo) && sid.trim().equals(sId)) {
                    sessionFactory = Sessions.getSessionFactory();
                    strAccpted = "true";
               } else {
                    strAccpted = "false";
          } catch (Exception e) {
               e.printStackTrace();
               strAccpted = "false";
          }I have my own values in string objects, then comparing that values with the values from login form. If both values are matching, then i will do configurations in hibernate.
ResourceBundle resourceBundle = ResourceBundle
               .getBundle("com.beyon.ezygui.server.Queries");
     public static final String connection_url = resourceBundle
               .getString("connection.url");
     public static final String userName = resourceBundle.getString("userName");
     public static final String password = resourceBundle.getString("password");
     public static final String hostName = resourceBundle.getString("hostName");
     public static final String portNo = resourceBundle.getString("portNo");
     public static final String sId = resourceBundle.getString("sId");The above are the String objects i'm checking for the match with values from login form.
Thanks & Regards,
Kothandaraman N.

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try {
_adapter = new Adapter(checkConsumer,env);
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_adapter.start();
System.out.println("Hello...");
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_adapter = null;
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_adapter.start() will call onMessage() my onMessage like this
public void onMessage(Adapter adpt, Message message) {
try {
if(message instanceof TextMessage) {
// Write the text out as read String text = ((TextMessage)message).getText();
// Do CHECK Process adpt.demoOut("Receive CHECK Text is :" + text);
//System.out.println("class name is " + consumerName);
} else {
// This is just a message (no particular type) } } catch (Exception e) {
try {
adpt.warn("Error outputing data: " + message.getJMSMessageID());
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} adpt.warn("\tError: " + e.getMessage());
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while exception throw from bc4j some particular
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message display.
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hi,
i have define in oracle user that i could have max 10 sessions at the same time.
I have jdbc datasource & connection pool defined at glassfish server(JSF application).
now, if in application is too many queries to the database then i have error: nullpointer exception - becouse when i try to do:
con = Database.createConnection(); - it generates nullpointer exception becouse there isn't free connection pool
i try to catch exception like this:
public List getrep_dws_wnioski_wstrzymane_graph() {     int i = 0;     try {     con = Database.createConnection();     ps =    (Statement) con.createStatement();     rs = ps.executeQuery("select data, klasa, ile_dni_wstrzymana, ile_wnioskow from stg1230.dwsww_wstrzymane_dws8 order by data, klasa, ile_dni_wstrzymana, ile_wnioskow");     while(rs.next()){       rep_dws_wnioski_wstrzymane_graph.add(i,new get_rep_dws_wnioski_wstrzymane_graph(rs.getString(1),rs.getString(2),rs.getString(3),rs.getString(4)));       i++;     }     } catch (NamingException e) {         e.printStackTrace();     } catch (SQLException e) {         e.printStackTrace();     } catch (NullPointerException e) {         e.printStackTrace();         throw new NoConnectionException(); // catch null 1     } finally {     try {         con.close();     } catch (SQLException e) {         e.printStackTrace();     } catch (NullPointerException e) {         e.printStackTrace();         throw new NoConnectionException(); // catch null 2     }     } return rep_dws_wnioski_wstrzymane_graph; }
but at line:
con.close();
i have nullpointerexception
and
at line
throw new NoConnectionException(); // catch null 2
i have: caused by exception.NoConnectionException
what's wrong with my exception class? how to resolve it?
public class NoConnectionException extends RuntimeException{     public NoConnectionException(String msg, Throwable cause){       super(msg, cause);     }     public NoConnectionException(){       super();     } }
at web.xml i have defined:
<error-page>         <exception-type>exception.NoConnectionException</exception-type>         <location>/NoConnectionExceptionPage.jsp</location>     </error-page>

thanks,
i did it and i have error:
java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit
at com.sun.gjc.spi.base.DataSource.getConnection(DataSource.java:115)
at logic.Database.createConnection(Database.java:37): conn = ds.getConnection();
public class Database {
     public static Connection createConnection() throws NamingException,
                SQLException {
            Connection conn = null;
            try{
                Context ctx = new InitialContext();
          if (ctx == null) {
               throw new NamingException("No initial context");
          DataSource ds = (DataSource) ctx.lookup("jdbc/OracleReports");
          if (ds == null) {
               throw new NamingException("No data source");
          conn = ds.getConnection(); // here's exception when max connections to database
          if (conn == null) {
               throw new SQLException("No database connection");
            } catch (NamingException e) {
                e.printStackTrace();
                throw new NoConnectionException();
         } catch (SQLException e) {
             e.printStackTrace();
                throw new NoConnectionException();
            catch (NullPointerException e) {
             e.printStackTrace();
                throw new NoConnectionException(); // obsluga bledy na wypadek jesli braknie wolnych polaczen do bazy
        return conn;
}and at my ealier code i have error:
at logic.GetDataOracle.getrep_dws_wnioski_wstrzymane_graph(GetDataOracle.java:192)
at line: con = Database.createConnection();
in code:
public List getrep_dws_wnioski_wstrzymane_graph() {
    int i = 0;
    try {
    con = Database.createConnection();
    ps =    (Statement) con.createStatement();
    rs = ps.executeQuery("select data, klasa, ile_dni_wstrzymana, ile_wnioskow from stg1230.dwsww_wstrzymane_dws8 order by data, klasa, ile_dni_wstrzymana, ile_wnioskow");
    while(rs.next()){
      rep_dws_wnioski_wstrzymane_graph.add(i,new get_rep_dws_wnioski_wstrzymane_graph(rs.getString(1),rs.getString(2),rs.getString(3),rs.getString(4)));
      i++;
    } catch (NamingException e) {
        e.printStackTrace();
    } catch (SQLException e) {
        e.printStackTrace();
    } catch (NullPointerException e) {
        e.printStackTrace();
        throw new NoConnectionException();
    } finally {
    try {
        if(con != null)
        con.close();
    } catch (SQLException e) {
        e.printStackTrace();
    } catch (NullPointerException e) {
        e.printStackTrace();
        throw new NoConnectionException();
return rep_dws_wnioski_wstrzymane_graph;
}so what's wrong?
i have limit max sessions 10 at oracle so i set at my connection pool 5 connections as max. But when i get max 5 sesssins and try to execute next query then i can't catch exception..

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