MacLochlainns Weblog

Michael McLaughlin's Technical Blog

Site Admin

SQL Developer Error

without comments

It’s been a couple releases trying to fix the following error thrown by SQL Developer on Fedora 30 and shown as the following dialog:

When you click the Detail button it shows the following error stack:

java.lang.NoClassDefFoundError: javafx/embed/swing/JFXPanel
	at oracle.dbtools.raptor.javafx.ui.JFXPanelFactory.createJFXPanelImpl(JFXPanelFactory.java:58)
	at oracle.dbtools.raptor.javafx.ui.JFXPanelFactory.createJFXPanel(JFXPanelFactory.java:34)
	at oracle.dbtools.raptor.startpage.StartPageViewer.createGUIComponent(StartPageViewer.java:179)
	at oracle.dbtools.raptor.startpage.StartPageViewer.getEditorContent(StartPageViewer.java:136)
	at oracle.ide.editor.AsynchronousEditor$2.run(AsynchronousEditor.java:345)
	at oracle.ide.editor.AsynchronousEditor$5.run(AsynchronousEditor.java:555)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
	at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)
Caused by: java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel cannot be found by oracle.sqldeveloper_19.2.0
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at org.netbeans.modules.netbinox.NetbinoxLoader.loadClass(NetbinoxLoader.java:81)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
	... 10 more

I thought applying the Open Java FX package might fix the problem. I installed the package like the following:

yum install -y openjfx

The installation log:

Last metadata expiration check: 4:03:29 ago on Tue 21 Apr 2020 06:42:26 PM MDT.
Dependencies resolved.
=============================================================================================
 Package            Architecture      Version                       Repository          Size
=============================================================================================
Installing:
 openjfx            x86_64            8.0.202-8.b07.fc30            updates            8.8 M
 
Transaction Summary
=============================================================================================
Install  1 Package
 
Total download size: 8.8 M
Installed size: 11 M
 
Downloading Packages:
openjfx-8.0.202-8.b07.fc30.x86_64.rpm                        2.5 MB/s | 8.8 MB     00:03    
---------------------------------------------------------------------------------------------
Total                                                        2.1 MB/s | 8.8 MB     00:04     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                     1/1 
  Installing       : openjfx-8.0.202-8.b07.fc30.x86_64                                   1/1 
  Running scriptlet: openjfx-8.0.202-8.b07.fc30.x86_64                                   1/1 
  Verifying        : openjfx-8.0.202-8.b07.fc30.x86_64                                   1/1 
 
Installed:
  openjfx-8.0.202-8.b07.fc30.x86_64                                                          
 
Complete!

After installing the software, I determined the new JAR files. Then, I added them to my $CLASSPATH environment variable, like:

export CLASSPATH=/usr/share/java/mysql-connector-java.jar:/usr/lib/jvm/openjfx/rt/lib/ext/fxrt.jar:/usr/lib/jvm/openjfx/rt/lib/jfxswt.jar:.

While it appears to load faster with these JAR files, it still raises the same Dialog error. I simply have to continue to look for a complete fix.

Written by maclochlainn

April 21st, 2020 at 11:49 pm

Posted in Fedora,Java,Java 8,Linux,Oracle,SQL Developer

Tagged with , ,

«
»