Bug#895440: Unable to connect to libreoffice

[gregor herrmann]

Control: tag -1 + confirmed

On Wed, 24 Jul 2019 18:00:28 +0200, Gary Porter wrote:

> Experiencing the same problem in Buster with a vanilla installation, but probably with a different cause.
> 
> Using jabref 3.8.2+ds-12, jabref is unable to connect to libreoffice automatically or manually.

I can reproduce this issue (on unstable). If I try to connect
manually (with the default values for the LO executable and libs), I
get an error message saying:

"File not found: /usr/lib/libreoffice/program/classes/program/classes/unoil.jar"

If I try to connect manually again but change the lib path from
/usr/lib/libreoffice/programm/classes to /usr/lib/libreoffice/ I
don't get an error window from JabRef but it still fails with a java
backtrace like yours:

02:11:07.355 [AWT-EventQueue-0] ERROR net.sf.jabref.FallbackExceptionHandler - Uncaught exception Occurred in Thread[AWT-EventQueue-0,6,main]
java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
	at net.sf.jabref.gui.openoffice.OpenOfficePanel.addURL(OpenOfficePanel.java:484) ~[JabRef-3.8.2.jar:?]
	at net.sf.jabref.gui.openoffice.OpenOfficePanel.connect(OpenOfficePanel.java:419) ~[JabRef-3.8.2.jar:?]
	at net.sf.jabref.gui.openoffice.OpenOfficePanel.lambda$initPanel$1(OpenOfficePanel.java:142) ~[JabRef-3.8.2.jar:?]
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967) ~[?:?]
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308) ~[?:?]
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405) ~[?:?]
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262) ~[?:?]
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279) ~[?:?]
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297) ~[?:?]
	at java.awt.Component.processMouseEvent(Component.java:6632) ~[?:?]
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3342) ~[?:?]
	at java.awt.Component.processEvent(Component.java:6397) ~[?:?]
	at java.awt.Container.processEvent(Container.java:2263) ~[?:?]
	at java.awt.Component.dispatchEventImpl(Component.java:5008) ~[?:?]
	at java.awt.Container.dispatchEventImpl(Container.java:2321) ~[?:?]
	at java.awt.Component.dispatchEvent(Component.java:4840) ~[?:?]
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918) ~[?:?]
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547) ~[?:?]
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488) ~[?:?]
	at java.awt.Container.dispatchEventImpl(Container.java:2307) ~[?:?]
	at java.awt.Window.dispatchEventImpl(Window.java:2772) ~[?:?]
	at java.awt.Component.dispatchEvent(Component.java:4840) ~[?:?]
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772) ~[?:?]
	at java.awt.EventQueue$4.run(EventQueue.java:721) ~[?:?]
	at java.awt.EventQueue$4.run(EventQueue.java:715) ~[?:?]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) ~[?:?]
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95) ~[?:?]
	at java.awt.EventQueue$5.run(EventQueue.java:745) ~[?:?]
	at java.awt.EventQueue$5.run(EventQueue.java:743) ~[?:?]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) ~[?:?]
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:742) ~[?:?]
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) [?:?]
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) [?:?]
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) [?:?]
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) [?:?]
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [?:?]
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:90) [?:?]


So yeah. there is an issue; and this has worked the last time I tried
it … Maybe some change in OpenJDK? -- This needs further
investigation.


Cheers,
gregor

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