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Posted to commits@harmony.apache.org by "Chunrong Lai (JIRA)" <ji...@apache.org> on 2007/08/21 12:13:30 UTC
[jira] Created: (HARMONY-4656) [classlib][awt] System ClipBoard is
not initialized well in Linux
[classlib][awt] System ClipBoard is not initialized well in Linux
-----------------------------------------------------------------
Key: HARMONY-4656
URL: https://issues.apache.org/jira/browse/HARMONY-4656
Project: Harmony
Issue Type: Bug
Environment: Fedora(Linux32)
Reporter: Chunrong Lai
In Fedora NullException is observed in the simple example:
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
public class Test {
public static void main (String argv[]) {
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
Transferable tb = clipboard.getContents(null);
try {
String text = (String) tb.getTransferData(DataFlavor.stringFlavor);
if (text != null && !text.equals(""))
{
System.out.println("The Clipboard is not null with String");
} else {
System.out.println("The Clipboard is null with String");
}
}
catch (UnsupportedFlavorException e){
e.printStackTrace();
}
catch (IOException e){
e.printStackTrace();
}
catch (Exception e){
e.printStackTrace();
}
}
}
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[jira] Assigned: (HARMONY-4656) [classlib][awt] System ClipBoard is
not initialized well in Linux
Posted by "Alexei Zakharov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexei Zakharov reassigned HARMONY-4656:
----------------------------------------
Assignee: Alexei Zakharov
> [classlib][awt] System ClipBoard is not initialized well in Linux
> -----------------------------------------------------------------
>
> Key: HARMONY-4656
> URL: https://issues.apache.org/jira/browse/HARMONY-4656
> Project: Harmony
> Issue Type: Bug
> Components: Classlib
> Environment: Fedora(Linux32)
> Reporter: Chunrong Lai
> Assignee: Alexei Zakharov
> Attachments: H4656.fixed.patch
>
>
> In Fedora NullException is observed in the simple example:
> import java.awt.Toolkit;
> import java.awt.datatransfer.Clipboard;
> import java.awt.datatransfer.DataFlavor;
> import java.awt.datatransfer.Transferable;
> import java.awt.datatransfer.UnsupportedFlavorException;
> import java.io.IOException;
> public class Test {
> public static void main (String argv[]) {
> Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
> Transferable tb = clipboard.getContents(null);
> try {
> String text = (String) tb.getTransferData(DataFlavor.stringFlavor);
> if (text != null && !text.equals(""))
> {
> System.out.println("The Clipboard is not null with String");
> } else {
> System.out.println("The Clipboard is null with String");
> }
> }
> catch (UnsupportedFlavorException e){
> e.printStackTrace();
> }
> catch (IOException e){
> e.printStackTrace();
> }
> catch (Exception e){
> e.printStackTrace();
> }
> }
> }
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[jira] Updated: (HARMONY-4656) [classlib][awt] System ClipBoard is
not initialized well in Linux
Posted by "Chunrong Lai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chunrong Lai updated HARMONY-4656:
----------------------------------
Attachment: H4656.fixed.patch
The patch guarantees a non-NULL content for SystemClipboard.
> [classlib][awt] System ClipBoard is not initialized well in Linux
> -----------------------------------------------------------------
>
> Key: HARMONY-4656
> URL: https://issues.apache.org/jira/browse/HARMONY-4656
> Project: Harmony
> Issue Type: Bug
> Components: Classlib
> Environment: Fedora(Linux32)
> Reporter: Chunrong Lai
> Attachments: H4656.fixed.patch
>
>
> In Fedora NullException is observed in the simple example:
> import java.awt.Toolkit;
> import java.awt.datatransfer.Clipboard;
> import java.awt.datatransfer.DataFlavor;
> import java.awt.datatransfer.Transferable;
> import java.awt.datatransfer.UnsupportedFlavorException;
> import java.io.IOException;
> public class Test {
> public static void main (String argv[]) {
> Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
> Transferable tb = clipboard.getContents(null);
> try {
> String text = (String) tb.getTransferData(DataFlavor.stringFlavor);
> if (text != null && !text.equals(""))
> {
> System.out.println("The Clipboard is not null with String");
> } else {
> System.out.println("The Clipboard is null with String");
> }
> }
> catch (UnsupportedFlavorException e){
> e.printStackTrace();
> }
> catch (IOException e){
> e.printStackTrace();
> }
> catch (Exception e){
> e.printStackTrace();
> }
> }
> }
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[jira] Commented: (HARMONY-4656) [classlib][awt] System ClipBoard
is not initialized well in Linux
Posted by "Alexei Zakharov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525688 ]
Alexei Zakharov commented on HARMONY-4656:
------------------------------------------
Thanks Chunrong. While playing with above test I've discovered that RI never returns null from Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null) because it initializes java clipboard with current value of system native clipboard. This way, clipboard always contains something on RI - some text that was recently copy-pasted from some app. IMHO it will be nice to have this functionality implemented in Harmony too.
However, before your patch Harmony's clipboard was initialized with null, after your patch it is initialized with empty string. The last case is better from my point of view. So I've applied your patch at the revision 573554. Please verify.
> [classlib][awt] System ClipBoard is not initialized well in Linux
> -----------------------------------------------------------------
>
> Key: HARMONY-4656
> URL: https://issues.apache.org/jira/browse/HARMONY-4656
> Project: Harmony
> Issue Type: Bug
> Components: Classlib
> Environment: Fedora(Linux32)
> Reporter: Chunrong Lai
> Assignee: Alexei Zakharov
> Attachments: H4656.fixed.patch
>
>
> In Fedora NullException is observed in the simple example:
> import java.awt.Toolkit;
> import java.awt.datatransfer.Clipboard;
> import java.awt.datatransfer.DataFlavor;
> import java.awt.datatransfer.Transferable;
> import java.awt.datatransfer.UnsupportedFlavorException;
> import java.io.IOException;
> public class Test {
> public static void main (String argv[]) {
> Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
> Transferable tb = clipboard.getContents(null);
> try {
> String text = (String) tb.getTransferData(DataFlavor.stringFlavor);
> if (text != null && !text.equals(""))
> {
> System.out.println("The Clipboard is not null with String");
> } else {
> System.out.println("The Clipboard is null with String");
> }
> }
> catch (UnsupportedFlavorException e){
> e.printStackTrace();
> }
> catch (IOException e){
> e.printStackTrace();
> }
> catch (Exception e){
> e.printStackTrace();
> }
> }
> }
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[jira] Resolved: (HARMONY-4656) [classlib][awt] System ClipBoard is
not initialized well in Linux
Posted by "Alexei Zakharov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexei Zakharov resolved HARMONY-4656.
--------------------------------------
Resolution: Fixed
> [classlib][awt] System ClipBoard is not initialized well in Linux
> -----------------------------------------------------------------
>
> Key: HARMONY-4656
> URL: https://issues.apache.org/jira/browse/HARMONY-4656
> Project: Harmony
> Issue Type: Bug
> Components: Classlib
> Environment: Fedora(Linux32)
> Reporter: Chunrong Lai
> Assignee: Alexei Zakharov
> Attachments: H4656.fixed.patch
>
>
> In Fedora NullException is observed in the simple example:
> import java.awt.Toolkit;
> import java.awt.datatransfer.Clipboard;
> import java.awt.datatransfer.DataFlavor;
> import java.awt.datatransfer.Transferable;
> import java.awt.datatransfer.UnsupportedFlavorException;
> import java.io.IOException;
> public class Test {
> public static void main (String argv[]) {
> Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
> Transferable tb = clipboard.getContents(null);
> try {
> String text = (String) tb.getTransferData(DataFlavor.stringFlavor);
> if (text != null && !text.equals(""))
> {
> System.out.println("The Clipboard is not null with String");
> } else {
> System.out.println("The Clipboard is null with String");
> }
> }
> catch (UnsupportedFlavorException e){
> e.printStackTrace();
> }
> catch (IOException e){
> e.printStackTrace();
> }
> catch (Exception e){
> e.printStackTrace();
> }
> }
> }
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