Thin JPanel when used as TableCellRenderer

Hello,
I'm using JPanels as renderers for my single column JTable.
Even though im using FlowLayout( FlowLayout.LEFT ) and only adding JLabels, the height of each row is about 1.5 times that of a normal JTable row.
Is there anyway to slim it down? Decreasing the font or just using setRowHeight doesn't really work.
//John

By default a FlowLayout uses insets to position the components. Reset the insets to 0.

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Hi there,
I'm having some difficulty with text alignment/border issues when using a custom TableCellRenderer. I'm using a JPanel with GroupLayout (although I've also tried others like FlowLayout), and I can't seem to get label text within the JPanel to align properly with the other cells in the table. The text inside my 'panel' cell is shifted downward. If I use the code from the DefaultTableCellRenderer to set the border when the cell receives focus, the problem gets worse as the text shifts when the new border is applied to the panel upon cell selection. Here's an SSCCE to demonstrate:
import java.awt.Color;
import java.awt.Component;
import java.awt.EventQueue;
import javax.swing.GroupLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.border.Border;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import sun.swing.DefaultLookup;
public class TableCellPanelTest extends JFrame {
private class PanelRenderer extends JPanel implements TableCellRenderer {
    private JLabel label = new JLabel();
    public PanelRenderer() {
      GroupLayout layout = new GroupLayout(this);
      layout.setHorizontalGroup(layout.createParallelGroup().addComponent(label));
      layout.setVerticalGroup(layout.createParallelGroup().addComponent(label));
      setLayout(layout);
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
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      } else {
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      // Border section taken from DefaultTableCellRenderer
      if (hasFocus) {
        Border border = null;
        if (isSelected) {
          border = DefaultLookup.getBorder(this, ui, "Table.focusSelectedCellHighlightBorder");
        if (border == null) {
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        setBorder(border);
        if (!isSelected && table.isCellEditable(row, column)) {
          Color col;
          col = DefaultLookup.getColor(this, ui, "Table.focusCellForeground");
          if (col != null) {
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          col = DefaultLookup.getColor(this, ui, "Table.focusCellBackground");
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      label.setFont(table.getFont());
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public TableCellPanelTest() {
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    getContentPane().add(table);
    pack();
public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
      public void run() {
        new TableCellPanelTest().setVisible(true);
}There are basically two problems:
1) When first run, the text in the custom renderer column is shifted downward slightly.
2) Once a cell in the column is selected, it shifts down even farther.
I'd really appreciate any help in figuring out what's up!
Thanks!

1) LayoutManagers need to take the border into account so the label is placed at (1,1) while labels just start at (0,0) of the cell rect. Also the layout manager tend not to shrink component below their minimum size. Setting the labels minimum size to (0,0) seems to get the same effect in your example. Doing the same for maximum size helps if you set the row height for the JTable larger. Easier might be to use BorderLayout which ignores min/max for center (and min/max height for west/east, etc).
2) DefaultTableCellRenderer uses a 1px border if the UI no focus border is null, you don't.
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<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
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<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
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<GlobalNamingResources>

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<Service name="Catalina">


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<Engine name="Catalina" defaultHost="localhost" debug="0">



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timestamp="true"/>


<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
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unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">








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-rw-r--r-- 1 oracle oinstall   272 Dec 7 2010 version.properties
-rw-r--r-- 1 oracle oinstall   405 Jan 16 2011 expected-object-counts.properties
-rw-r--r-- 1 oracle oinstall   892 May 13 2011 ant.install.properties.sample
-rw-r--r-- 1 oracle oinstall 64004 Jun 6 2011 build.xml
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drwxr-xr-x 3 oracle oinstall 4096 Jun 16 2011 installer-resources
drwxr-xr-x 3 oracle oinstall 4096 Jun 16 2011 antinstall
drwxr-xr-x 2 oracle oinstall 4096 Jun 16 2011 ant-ext
drwxr-xr-x 5 oracle oinstall 4096 Jun 16 2011 ant
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drwxr-xr-x 4 oracle oinstall 4096 Dec 18 10:06 common
-rw-r--r-- 1 oracle oinstall 16244 Dec 19 10:37 antinstall-config.xml
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THIS IS the driver directory
Verified $ORACLE_SID.
Verified SQL*Plus exists.
Verified write permissions.
Verified formsweb.cfg read permissions.
Verified Registry.dat read permissions.
Verified Java version 1.4.2.x or greater. Java version - 1.6.0
Verified Tk2Motif.rgb settings.
Verified frmcmp_batch.sh status.
WARNING: Oracle Enterprise Linux not detected. Some components may not install properly.
Verified $DISPLAY - 172.16.129.82:0.0.
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Preparing installer. This may take a few moments.
Your internet connection type is: NONE
Integrating My Oracle Support into the product installer workflow...
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Installer preparation complete.
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TNS Ping Utility for Linux: Version 11.1.0.7.0 - Production on 19-DEC-2013 10:41:40
Copyright (c) 1997, 2008, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = test-rms-db.vonmaur.vmc)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SID = rmsdbtst)))
OK (0 msec)
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SQL*Plus: Release 11.1.0.7.0 - Production on Thu Dec 19 10:46:18 2013
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Enter password:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
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PING test-rms-db.vonmaur.vmc (192.168.1.140) 56(84) bytes of data.
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=1 ttl=64 time=0.599 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=2 ttl=64 time=0.168 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=3 ttl=64 time=0.132 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=4 ttl=64 time=0.158 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=5 ttl=64 time=0.135 ms
--- test-rms-db.vonmaur.vmc ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4001ms
rtt min/avg/max/mdev = 0.132/0.238/0.599/0.181 ms
[oracle@test-rms-app application]$
[oracle@test-rms-app application]$ uname -a
Linux test-rms-app.vonmaur.vmc 2.6.18-128.el5 #1 SMP Wed Jan 21 08:45:05 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
[oracle@test-rms-app application]$
[oracle@test-rms-app application]$ cat /etc/*-release
Enterprise Linux Enterprise Linux Server release 5.3 (Carthage)
Red Hat Enterprise Linux Server release 5.3 (Tikanga)
[oracle@test-rms-app application]$
The database is created and all the batch file scripts have been successfully deployed. Now working on the application server. The Weblogic server is installed and 11g forms and reports are installed successfully.
Any help would be helpful.
Thanks,
Ram.

Please check MOS Notes:
FAQ: RWMS 13.2 Installation and Configuration (Doc ID 1307639.1)

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** user region: null
** user timezone:
** file encoding: Cp1252
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** java vendor: Sun Microsystems Inc.
** o.s. arch: x86
** o.s. name: Windows 2000
** o.s. version: 5.0
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** Microsoft SQLServer 2000 Plugin, Production Release 10.1.0.4.0
** Microsoft SQLServer 6.5 Plugin, Production Release 10.1.0.4.0
** Microsoft SQLServer 7.0 Plugin, Production Release 10.1.0.4.0
** Active Plugin : SQLServer2K
EXCEPTION :SQLServer2KDisconnSourceModelLoad.loadSourceModel(): oracle.mtg.migration.MigrationStopException: java.lang.IndexOutOfBoundsException: Index: 15, Size: 15
** Shutdown : Fri Feb 23 18:00:50 GMT-03:00 2007

Duplicate thread
Error when using Oracle Migration WorkBench (Sql Server 2k to Oracle 8i)

BINDING.JCA-12510 JCA Resource Adapter - Cannot call rollback when using di

Hi,
i'm facing a simillar issue with dbadapter while trying to insert a record.
The issue that I'm facing is: (BINDING.JCA-12563)
Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'insert' failed due to: DBWriteInteractionSpec Execute Failed Exception. insert failed. Descriptor name: http://InsertEmployee.TestEmp. Caused by java.sql.SQLException: Cannot call rollback when using distributed transactions. ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
I faced the same issues that have been posted in this thread before but this is a new one I'm seeing.
Following are the configurations that I'm using.
WEBLOGIC ADMIN CONSOLE
JDBC datasources
General tab:
JNDI Name: jdbc/SOADataSource
Connection Pool tab:
URL - jdbc:oracle:thin:@localhost:1522/XE
Driver Class Name - oracle.jdbc.xa.client.OracleXADataSource
Properties - user=SATRA_SOAINFRA
oracle.net.CONNECT_TIMEOUT=10000
Deployments
Inside DbAdapter - Configuration
The general tab shows blank values for 'Native lib dir' and 'JNDI name' fields. Is this normal or I need to populate values into these.
Inside Outbound Connection Pools the javax.resource.cci.ConnectionFactory created an entry 'eis/DB/10gXE_DBCon'
following is the settings for dataSourceName property
dataSourceName java.lang.String jdbc/SOADataSource
I have kept the value for xADataSourceName as blank as giving the same value of 'jdbc/SOADataSource' throws error.
The JNDI value that I'm using while creating the database adapter from Jdev is eis/DB/10gXE_DBCon where 10gXE_DBCon is the database connection name.
Can you please tell me what is the issue and where I'm going wrong.
Thanks in advance,
Satrajit

Hi Sunil,
I followed your advice and did the changes, that error has gone but a new error is popping up.
BINDING.JCA-12563 Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'insert' failed due to: DBWriteInteractionSpec Execute Failed Exception. insert failed. Descriptor name: [InsertEmployee.TestEmp]. Caused by java.sql.SQLSyntaxErrorException: ORA-00942: table or view does not exist . ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
The name of the table i'm inserting to is test_emp and it exists in the database.
the .jca file for dbadsapter is like
<adapter-config name="FileToDB_DBAdp" adapter="Database Adapter" xmlns="http://platform.integration.oracle/blocks/adapter/fw/metadata">
<connection-factory location="eis/DB/10gXE_DBCon" UIConnectionName="10gXE_DBCon" adapterRef=""/>
<endpoint-interaction portType="FileToDB_DBAdp_ptt" operation="insert">
<interaction-spec className="oracle.tip.adapter.db.DBWriteInteractionSpec">
<property name="DescriptorName" value="FileToDB_DBAdp.TestEmp"/>
<property name="DmlType" value="insert"/>
<property name="MappingsMetaDataURL" value="FileToDB_DBAdp-or-mappings.xml"/>
<property name="DetectOmissions" value="true"/>
<property name="GetActiveUnitOfWork" value="false"/>
</interaction-spec>
</endpoint-interaction>
</adapter-config>
and the .xsd file for dbadapter is
<?xml version = '1.0' encoding = 'UTF-8'?>
<xs:schema targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/FileToDB_DBAdp" xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/top/FileToDB_DBAdp" elementFormDefault="qualified" attributeFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="TestEmpCollection" type="TestEmpCollection"/>
<xs:complexType name="TestEmpCollection">
<xs:sequence>
<xs:element name="TestEmp" type="TestEmp" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="TestEmp">
<xs:sequence>
<xs:element name="empid" type="xs:decimal" nillable="true"/>
<xs:element name="name" type="xs:string" minOccurs="0" nillable="true"/>
<xs:element name="designation" minOccurs="0" nillable="true">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="50"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="salary" type="xs:decimal" minOccurs="0" nillable="true"/>
<xs:element name="deptno" type="xs:decimal" minOccurs="0" nillable="true"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
If I change element name from 'TestEmp' to 'Test_Emp' in the .xsd file,
I'm getting the following issue ...
Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'insert' failed due to: Could not create/access the TopLink Session. This session is used to connect to the datastore. Caused by java.lang.NullPointerException. ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
I'm confused why does it take the table name as TestEmp and not as Test_Emp.
Regards,
Satrajit

Multiple weight font selection when using STL file importing...

I am aware how powerful the manual editor is for DSP4.2, but unfortunately a lot of the editing for my subtitles needs to be done outside of DSP. So I came across a little bit of a problem...
When using a multiple weight font, like Kozuka Mincho Pro (and many others), there are several weights, and some don't even have a "Bold." As an example Light, Thin, Roman, Heavy, Black, etc.
So, using the STL method of importing, how does one specify a font AND weight that does not correspond to a "Bold" version? i.e., setting "Helvetica Neue Bold" does not bring that weight up when specifying "Bold = False," and you can't possibly get "Helvetica Neue Black," under any circumstances. I've attempted to get around this, but all I get is a message saying that the font is not found, and that the default font will be used. Is it even possible to do this?
Hand entering and altering kanji in DSP's manual editor will be a nightmare, if I can't figure a way around this (the STL file is re-loaded dozens of times for placement issues during the project, meaning manual edits would have to be re-done every time).
Hopefully the next version will allow the user to edit the .rtf document with styles and fonts and import them as styled text the way it appears. Multiple fonts per line, so easy integration of various symbol fonts can be dealt with, etc.

Nope, using "$FontName = Helvetica Neue Black" does not work. And you can't even do anything close to that with fonts whose weights are specified as W3, W5, W7, etc.
I found another snippet buried in the new manual that states something to the effect that the name must be spelled exactly as it appears in the "Font Panel." If this is so, then you can only access two weights from any font, just like working with good old-fashioned windows...
So, unless there is a DSP specific trick for the STL format, I'm going to guess it's not possible.
And I cannot re-compile fonts with new names and data, since most of the fonts I will be working with, with this issue, are full Kanji Unicode fonts, and we would have to purchase a font-editor that, IIRC costs about a grand. I think the SysAdmin would frown over both aspects of that... ^_^

JDBC Connection Reset when using many processes on 64 bit system

Hi,
we've a annoying JDBC connection problem since we migrated our Java server to a 64 bit operating system. Here our environment.
Database Machine:
Oracle 10g
Linux 32 Bit (but same problem on 64 Bit)
Application Servers Machine:
JDBC driver 11.1.0.6
SUN Java 1.6.0_06 64bit
Linux 64 bit (SLES 10 SP2)
We have 6 different Java server processes (but with the same code) which all create some connections to the same database (running on a different Hardware). All 6 Java server processes starting at the same time (via scripts).
Everything was fine, until we migrated the application server machine from 32 bit Linux to 64 bit Linux. From this day on, the half (or one more or less) of our application server processes can't longer connect to the database. The application server processes which have the problem product the following stack trace:
java.sql.SQLRecoverableException: I/O Exception: Connection reset
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:281)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:118)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:224)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:296)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:611)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:455)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:494)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:199)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:30)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at com.aaaa.utils.db.DbConnectionPool.<init>(DbConnectionPool.java:130)
It looks like a network problem with the system but all other network stuff works without problems, between the two machines.
- We use the thin JDBC driver (no OCI)
- No firewalls are active on both systems
- Both systems are in the same subnet connected to the same switch
- The DNS configuration on both systems are ok (forward and reverse)
- We've found the same problem on different application-server/database-server pairs with 64 bit application server hardware - but not all of our 64 bit server systems have this problem.
- When running application server process and database on the same system (connecting via localhost) the problem does not longer appear.
- The same database machine connected from a 32 bit application server (with 6 different java processes starting at the same time) works without a problem.
We've tried a lot of things to isolate the problem - but with no success.
- Same problem with SUN Java 1.6.0_06 32 bit (on 64 bit Linux)
- Same problem with SUN Java 1.6.0_15 (32 and 64 bit)
- Played with some JDBC connection properties (oracle.jdbc.TcpNoDelay, oracle.jdbc.ReadTimeout, oracle.net.CONNECT_TIMEOUT, oracle.net.disableOob, oracle.jdbc.RetainV9LongBindBehavior, oracle.jdbc.StreamChunkSize) without a positive result.
- We've updated Linux network driver
- We've changed to an completeky other NIC
- We've tried an other Linux 64 distribution
- We've increased the PROCESSES parameter in the init.ora
- We've tried the JDBC driver 11.1.0.6
- We've tried the _g version of the JDBC driver, but the debugging output simply tell us "Connection Reset" without a hint why.
- We've tried a more complex JDBC connect string (
"jdbc:oracle:thin:@(DESCRIPTION=" +
"(ADDRESS_LIST=" +
"(ADDRESS=(PROTOCOL=TCP)" +
"(HOST=host)" + =
"(PORT=port)" +
")" +
")" +
"(CONNECT_DATA=" +
"(SERVICE_NAME=sid)" +
"(SERVER=DEDICATED)" +
")" +
Nothing of this things helped us to isolate the problem.
When we start our application server processes with a long pause (>1 min) between every process start. The problem does not occure. When we start only one application server with the same number of connections as the 6 different application server processes, everything works fine.
We have absolute no idea why
- this only occures on 64 bit Linux
- independent if it's a 32 bit or 64 bit JVM
- does not occure on all 64 bit application server machines / database machine pairs
- never occure on the same 64 bit app server hardware when using a 32 bit Linux
- using the Oracle JDBC 10g driver (10.xxx) there is no problem (but because of other issues, we need to use the JDBC 11g driver)
Does anybody has an idea what our problem is?
Thanks in advance,
greetings

I was recently struggling with this exact same problem. I opened a ticket with Oracle and this is what they told me.
java.security.SecureRandom is a standard API provided by sun. Among various methods offered by this class void
nextBytes(byte[])
is one. This method is used for generating random bytes. Oracle 11g JDBC drivers use this API to generate random number during
login. Users using Linux have been encountering SQLException("Io exception: Connection
reset").
The problem is two fold
1. The JVM tries to list all the files in the /tmp (or alternate tmp directory set by -Djava.io.tmpdir) when
SecureRandom.nextBytes(byte[]) is invoked. If the number of files is large the
method takes a long time
to respond and hence cause the server to timeout
2. The method void nextBytes(byte[]) uses /dev/random on Linux and on some machines which lack the random
number generating hardware the operation slows down to the extent of bringing the whole login process to
a halt. Ultimately the the user encounters SQLException("Io exception:
Connection reset")
Users upgrading to 11g can encounter this issue if the underlying OS is Linux which is running on a faulty hardware.
Cause
The cause of this has not yet been determined exactly. It could either be a problem in
your hardware or the fact
that for some reason the software cannot read from dev/random
Solution
Change the setup for your application, so you add the next parameter to the java command:
-Djava.security.egd=file:/dev/../dev/urandom
We made this change in our java.security file and it has gotten rid of the error.

Catch error in javascript when using SAP script

All,
I have a issue when using Javascript to control the SAP GUI in that I get a "syntax Error" raised by Internet Explorer if I attempt to get the SAPGUI runtime object from the runtime object table if SAP is not already running.
For example:
I have a javascript function embedded in a web page as follows:
<script type="text/javascript">
function displaymessage()
var sapgui;
var application;
var connection;
if (typeof(application) == "undefined")
   sapgui      = GetObject("SAPGUI");
   application = sapgui.GetScriptingEngine();
if (typeof(connection) == "undefined")
   connection = application.children(0);
if (typeof(session) == "undefined")
   session = connection.children(0);
if (typeof(WScript) != "undefined")
   WScript.connectObject(session, "on");
   WScript.connectObject(application, "on");
session.findById("wnd[0]/tbar[0]/okcd").text = "fb50";
session.findById("wnd[0]").sendVKey(0);
session.findById("wnd[1]/usr/ctxtBKPF-BUKRS").text = "0001";
session.findById("wnd[1]/usr/ctxtBKPF-BUKRS").caretPosition = 4;
session.findById("wnd[1]").sendVKey(0);
</script>
I have a simple HTML page with a button on it that calls the function.
If I have already launched SAP GUI and logged in the code works fine and atuomatically navigates me to FB50.
If SAP is not active and logged in then I get a syntax error! The error is raised by IE when the GetObject("SAPGUI") is executed.
Can anyone please help by either:
a) explaining how I can catch this error in javascript
b) suggesting a different way to call the GetObject
c) suggesting a way that I can auto launch SAP to log people in if it is not already active.
Note - Using VB is not an option as I need to embed the working Javascript code in a Siebel thin client application which only uses Javascript.
All help welcome. Thanks

Hey Gunter,
Thanks much, that did work.
The other error I spoke of was fixed with the new database, so apparently the two errors I spoke of weren't related.
You seem to be a good help to this forum, thank you for that.... fixing my problem relieved me from much stress.
Cheers,
Derek Miller
Dreamweaver Enthusiast

Thin JPanel when used as TableCellRenderer

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