Bug#895440: jabref: The problem continues in Debian 11 bullseye

[Pep Roca]

Helo, Tony:

Thank's for your help.

El dj. 17 de 02 de 2022 a les 21:58 -0800, en/na tony mancill va
escriure:
> Hi Pep.
> 
> There is a parameter setting called ooJarsPath that I believe
> might be set incorrectly for your installation and is causing the
> issue
> you are seeing.  There are two ways to access the setting.
> 
> 1) Start JabRef and then navigate to:
> 
>   Options -> Preferences -> Show Preferences 
> 
> The key is "ooJarsPath" and the value should be
> "/usr/lib/libreoffice".
> Based on the exception trace you provided in the bug report, I
> believe
> it is currently set to "/usr/lib/libreoffice/program/classes" on your
> system.
> 
> OR
> 
> 2) Stop Jabref (so it doesn't overwrite the file) and edit the
> setting
> directly in this file:
> 
>   ~/.java/.userPrefs/net/sf/jabref/prefs.xml
> 
> After saving the file, you can restart JabRef.
> 
> JabRef automatically appends "/program/classes" to the ooJars path on
> Linux (see [1]), and the unoil.jar is found in
> /usr/lib/libreoffice/program/classes/unoil.jar, so hopefully that
> resolves the issue you are seeing.   
> 
> Please let me know if it does not.

In my file there is:

  <entry key="ooExecutablePath" value="/usr/lib/libreoffice/program/soffice"/>
  <entry key="ooJarsPath" value="/usr/lib/libreoffice/program/classes/"/>
  <entry key="ooPath" value="/opt/openoffice.org3"/>

I have changed the value of the "ooJarsPath" to the correct value
"/usr/lib/libreoffice" and now the connection to the LibreOffice is
done correctly.

But when I click on the folder icon (“Select which open Write document
to work on”), nothing happens.

The output from the program is:

******************
$ DEBUG_WRAPPER=true /usr/bin/jabref 
[debug] /usr/bin/jabref: Picking up the JVM designated by the alternatives system:  
[debug] /usr/bin/jabref:   JAVA_HOME = '/usr/lib/jvm/java-11-openjdk-amd64' 
[debug] /usr/bin/jabref: Found JAVA_HOME = '/usr/lib/jvm/java-11-openjdk-amd64' 
[debug] /usr/bin/jabref: Found JAVA_CMD = '/usr/lib/jvm/java-11-openjdk-amd64/bin/java' 
[debug] /usr/bin/jabref: Environment variable CLASSPATH is '' 
[debug] /usr/bin/jabref: Runnning /usr/lib/jvm/java-11-openjdk-amd64/bin/java  -classpath /usr/share/java/jabref.jar:/usr/share/java/
bcprov.jar:/usr/share/java/antlr3-runtime.jar:/usr/share/java/antlr4-runtime.jar:/usr/share/java/com.android.json.jar:/usr/share/java
/commons-cli.jar:/usr/share/java/commons-codec.jar:/usr/share/java/commons-lang3.jar:/usr/share/java/commons-logging.jar:/usr/share/j
ava/fontbox.jar:/usr/share/java/glazedlists.jar:/usr/share/java/guava.jar:/usr/share/java/httpasyncclient.jar:/usr/share/java/httpcli
ent.jar:/usr/share/java/httpcore.jar:/usr/share/java/httpcore-nio.jar:/usr/share/java/httpmime.jar:/usr/share/java/java-string-simila
rity.jar:/usr/share/java/jaxb-runtime.jar:/usr/share/java/jempbox.jar:/usr/share/java/jgoodies-common.jar:/usr/share/java/jgoodies-fo
rms.jar:/usr/share/java/jgoodies-looks.jar:/usr/share/java/jhlabs-filters.jar:/usr/share/java/jsoup.jar:/usr/share/java/juh.jar:/usr/
share/java/jurt.jar:/usr/share/java/log4j-api.jar:/usr/share/java/log4j-core.jar:/usr/share/java/log4j-jcl.jar:/usr/share/java/microb
a.jar:/usr/share/java/mariadb-java-client.jar:/usr/share/java/pdfbox.jar:/usr/share/java/postgresql.jar:/usr/share/java/ridl.jar:/usr
/share/java/spin.jar:/usr/share/java/swingx.jar:/usr/share/java/swing-layout.jar:/usr/share/java/unirest-java.jar:/usr/share/java/uno
il.jar --add-opens=java.desktop/java.awt=ALL-UNNAMED net.sf.jabref.JabRefMain 
09:37:48.598 [AWT-EventQueue-0] WARN  net.sf.jabref.JabRefGUI - There seem to be problems with OpenJDK and the default GTK Look&Feel.
Using Metal L&F instead. Change to another L&F with caution. 
09:38:02.728 [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:6635) ~[?:?] 
       at javax.swing.JComponent.processMouseEvent(JComponent.java:3342) ~[?:?] 
       at java.awt.Component.processEvent(Component.java:6400) ~[?:?] 
       at java.awt.Container.processEvent(Container.java:2263) ~[?:?] 
       at java.awt.Component.dispatchEventImpl(Component.java:5011) ~[?:?] 
       at java.awt.Container.dispatchEventImpl(Container.java:2321) ~[?:?] 
       at java.awt.Component.dispatchEvent(Component.java:4843) ~[?:?] 
       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:4843) ~[?:?] 
       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) [?:?]
******************

Perhaps the problem is deeper and the connection with a LibreOffice
document is fully broken without OpenJDK 8. The problem is that OpenJDK
8 is not available as a package in Debian Bullseye.

Kind regards and thanks for maintaining JabRef. Pep

> 
> Cheers,
> tony
> 
> [1] 
> https://salsa.debian.org/java-team/jabref/-/blob/master/src/main/java/net/sf/jabref/gui/openoffice/OpenOfficePanel.java#L403