M6 - swt problems

[jleotta]

Hello,

Well after extensive time wasting I finally got the proper jars into eclipse 3.1M6 to compile code. Now when I run the application its telling me that the swt-win32-3128.dll cannot be loaded. I put the dll's in the same place I did before ie \WINNT\system32 but it still cant find it. Does anyone know where to put the dll's and if Eclipse 3.1M6 needs to know something about their location?

Thanks,
Jim

[Eric Clayberg]

Well after extensive time wasting I finally got the proper jars into eclipse 3.1M6 to compile code.

Note that Designer will automatically set up your project classpath for you if you use the SWT/JFace Project wizard to create the project in M6. If your project was created prior to M6, you need to migate your project yourself.

Now when I run the application its telling me that the swt-win32-3128.dll cannot be loaded. I put the dll's in the same place I did before ie \WINNT\system32 but it still cant find it. Does anyone know where to put the dll's and if Eclipse 3.1M6 needs to know something about their location?

Just to be clear...you extracted the three Eclipse SWT DLLs from the new SWT plugin jar file and copied them into your \WINNT\system32 directory? That should work. If not, you should post a question on the Eclipse SWT newsgroup detailing exactly what you did and exactly what error message you are seeing.

It appears that the Eclipse folks might have broken a few things with their M6 release.

[jleotta]

Hey Eric,

Yes I put the dll's (all three) in the system32 directory as I have always done and they are not found. I posted to the bulletin board the problem as well as have the users and no response all day.

It seems they went to a new methodology for loading jars and dll's and unless its a secret no one seemed to run any tests.

Be well.

[pongs]

Same problem.
I installed Eclipse M6 and windowbuilderpro, then I created a new designer project and then a new swt application.

Just to show you the example I created:

import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class Pippo {

protected Shell shell;

public static void main(String[] args) {
try {
Pippo window = new Pippo();
window.open();
} catch (Exception e) {
e.printStackTrace();
}
}

public void open() {
final Display display = Display.getDefault();
createContents();
shell.open();
shell.layout();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}

protected void createContents() {
shell = new Shell();
shell.setSize(500, 375);
shell.setText("SWT Application");
}

}

When I try to run.........

error....

Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-win32-3128 in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.Library.loadLibrary(Library.java:123)
at org.eclipse.swt.internal.win32.OS.<clinit>(OS.java:18)
at org.eclipse.swt.widgets.Display.<clinit>(Display.java:125)
at Pippo.open(Pippo.java:18)
at Pippo.main(Pippo.java:11)


After the new installation of eclipse I saw that there isn't the directory org.eclipse.swt.win32 and the org.eclipse.swt in the plugins dir.

Ciao
Antonio

[Eric Clayberg]

Yes I put the dll's (all three) in the system32 directory as I have always done and they are not found. I posted to the bulletin board the problem as well as have the users and no response all day.

That is very odd. When I do that, I am able to launch SWT apps just fine. Note that I am using Run As > Java Application rather than Run As > SWT Application (which is broken).

It seems they went to a new methodology for loading jars and dll's and unless its a secret no one seemed to run any tests.

Yes, they clearly screwed this up badly.

[Eric Clayberg]

After the new installation of eclipse I saw that there isn't the directory org.eclipse.swt.win32 and the org.eclipse.swt in the plugins dir.

Under M6, you need to extract the three DLLs from the new org.eclipse.swt.win32_3.1.0.jar file and copy them to your windows/system32 directory.

You should then be able to use Run As > Java Application to run them.

[jleotta]

Thanks Eric. All works fine running app as Java instead of SWT. I'll post this on the bulleting board and make many happy.

[bweith]

After the new installation of eclipse I saw that there isn't the directory org.eclipse.swt.win32 and the org.eclipse.swt in the plugins dir.

I have the same problem with M6 on Linux.

Under M6, you need to extract the three DLLs from the new org.eclipse.swt.win32_3.1.0.jar file and copy them to your windows/system32 directory.

You should then be able to use Run As > Java Application to run them.

Eric, how does one fix this on Linux-gtk?

[Eric Clayberg]

how does one fix this on Linux-gtk?

I imagine a similar procedure is required for Linux.

Extract the .so files from the jar and copy them to your path somewhere.

If that does not work, you should ask this question on the Eclipse SWT newsgroup.

[jnlsbur]

There are a couple of other ways to solve this also:

Option 1
Go to the RUN dialog and create an entry for your SWT application. On the "Arguments" tab add the following to the VM Arguments text area:
-java.library.path=[path to SWT DLL's]

Code: Select all

-java.library.path=c:\dev\swt

[Option 2]
Sun mentions that you add these files in to the SDK. The benefit of this option is that JAVA will locate the files properly without specifying them on your command lines.

On Windows:

copy the swt*.DLL files from the SWT download in %JAVA_HOME%/jre/bin directory;

copy the swt.jar file from the SWT download in %JAVA_HOME%/jre/lib/ext directory; (note: you may have to create the 'ext' directory manually).