Open Eclipse Juno with Error "No More Handles ..." in Ubuntu 12.04

Eclipse Bug: Unhandled event loop exception No more handles

There is a workaround: Change the Java editor to WindowBuilder.

Eclipse → Windows → Preferences → File Associations →, choose WindowBuilder Editor as Java default editor.

Eclipse giving Error Unhandled event loop exception No more handles

After so long this issue finally got resolved.Nothing much just scanned my system with an Antivirus.May be some virus issue that caused eclipse behave weird.

How to get Eclipse SWT Browser component running on Ubuntu 11.04 (Natty Narwhal) with Webkit?

I'm not on Ubuntu, but think that doesn't matter much.

1. Check the version of libwebkit-1.0-2 (it should be >= 1.2.0)
2. Install this package if absent
3. Check that /usr/lib and /usr/lib/jni is in java.library.path
4. If you use SWT 3.6, also check that appropriate webkit jni wrapper is installed (e.g. libswt-webkit-gtk-3.6-jni and org.eclipse.swt.browser.UseWebKitGTK system property is set to `True

Edit: To localize source of the problem create minimalistic project and show the output

package foo;

import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class BrowserTest {

    public static void main(String[] args) {

        System.out.println(System.getProperty("java.library.path"));
        System.out.println(System.getProperty("org.eclipse.swt.browser.UseWebKitGTK"));

        Display display = new Display();
        Shell shell = new Shell(display);

        try {
            Browser browser = new Browser(shell, SWT.NONE);
            browser.setSize(shell.getSize());
            browser.setUrl("google.com");
        } catch (SWTError e) {
            e.printStackTrace();
        }

        shell.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }

        display.dispose();

    }
}

SWT Browser & Eclipse

The apparent problem, in accordance with the edited question and all of the errata, appears to be a version conflict between your running version of Eclipse and the versions of both Mozilla or WebKit installed on your system. This is further conflated by extremely terse documentation and dependency hell.

The key is to check your running Eclipse version and compare it to the versions of xulrunner and libwebkit installed on your system, exactly as recommended in the answer and errata here and documented in the FAQ here. However, based on the difficulties you've had and the sparse documentation on this problem, you'll want to take special precautions to ensure that all of your dependencies are satisfied for the strictly correct versions.

Given your diagnosis that xulrunner and eclipse are in conflict, I did some digging to find the correct resolution to this problem. It turns out this is covered in extensive detail in this thread. The salient information you need to be concerned about:

• Eclipse 3.5.2-3.6.x are incompatible with xulrunner 2.0. If this is an older system, use xulrunner 1.9.2-15-2 to solve the problem.

• The version of Eclipse you are using very likely does not support libwebkit3. As mentioned, it is exceedingly likely that you will need to use an earlier version.

• In all cases, building a version of Firefox with the correct Gecko bindings should resolve the issue and, as point of fact, reproduces this bug when those bindings are not present:

Also note that a Firefox release whose contained Gecko version
correlates with the Mozilla versions above can also be used with
Eclipse 3.1 and newer (Linux only), provided that it has been compiled
with linkable Gecko libraries. It is important to note that Firefox
downloads from mozilla.org do not satisfy this criteria, but Firefox
installations that are included in major Linux distributions often do
in the absence of a XULRunner installation. Attempting to use a
Firefox install without linkable Gecko libraries will throw an error
with message "No more handles [NS_InitEmbedding...error -2147221164]".

In short: the problem is with Arch Linux's packaging of the dependencies for Eclipse SWT. But, this is a year-old issue that indicates your Eclipse version and the rest of your system is in desperate need of a software upgrade... :)

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Edit: To get Google WindowBuilder Pro's copy of SWT's browser widgets working in Arch Linux, I created a VM and stepped through this process with the OP. I was able to reproduce the bug in both the 32- and 64-bit versions of Arch Linux.

It turns out Arch Linux's bindings for libwebkit were insufficient, so I went ahead and built xulrunner-1.9.2.19 from source. After a whole lot of necessary fixups, my make install version just works with Eclipse.

The next step, for anyone willing, is to report this to Arch Linux.

Eclipse (ZIP distro) SWT link error

I was able to make it run by installing libwebkitgtk-1.0-0 - as suggested in Open eclipse juno with error "No more handles ..." in Ubuntu 12.04

Unhandled event loop exception in plugin org.eclipse.ui

Ok please follow the following steps:

• First close your eclipse.
• Go to your Eclipse Folder
• You will find the "Features" & "Plugins" folders in it.
• Open the "Features" folder and search for the "org.eclipse.ui" folder or .jar file. If found then cut it & paste on desktop.
• Open the "Plugins" Folder and search for the "org.eclipse.ui" folder or .jar file. If found then cut it & paste on desktop.

Now start your eclipse & try to compile.

It's possible that while updating it has downloaded the wrong updates.

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