Open eCard

Running the latest openecard client from the .jnlp on Debian, I try to register with the HamburgService (https://gateway.hamburg.de). I get the chance to see what data is being accessed, I get asked to enter my PIN. I enter the PIN once, my RainerSCT Cyberjack shows "Eingeschränkte Wiedererkennung" and I get to enter the PIN again. WHen I do, the card reader says "Creating tunnel" and "opened tunnel" (or similar), and then the "javaws openecard.jnlp" process crashes with the following message:

@Main class defined in config file.
mainclass=org.openecard.richclient.RichClient

Exception in thread "AWT-EventQueue-1" java.lang.IllegalStateException: javax.swing.JPanel[,0,0,0x0,invalid,layout=javax.swing.BoxLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.synth.SynthBorder@1e3fafd4,flags=9,maximumSize=,minimumSize=,preferredSize=] is not attached to a horizontal group
at javax.swing.GroupLayout.checkComponents(GroupLayout.java:1086)
at javax.swing.GroupLayout.prepare(GroupLayout.java:1040)
at javax.swing.GroupLayout.layoutContainer(GroupLayout.java:910)
at java.awt.Container.layout(Container.java:1503)
at java.awt.Container.doLayout(Container.java:1492)
at java.awt.Container.validateTree(Container.java:1688)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validate(Container.java:1623)
at java.awt.Window.dispatchEventImpl(Window.java:2717)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:747)
at java.awt.EventQueue.access$300(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.awt.EventQueue$3.run(EventQueue.java:704)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:720)
at java.awt.EventQueue$4.run(EventQueue.java:718)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:717)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Exception in thread "AWT-EventQueue-1" java.lang.IllegalStateException: javax.swing.JPanel[,0,0,0x0,invalid,layout=javax.swing.BoxLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.synth.SynthBorder@6006651d,flags=9,maximumSize=,minimumSize=,preferredSize=] is not attached to a horizontal group
at javax.swing.GroupLayout.checkComponents(GroupLayout.java:1086)
at javax.swing.GroupLayout.prepare(GroupLayout.java:1040)
at javax.swing.GroupLayout.layoutContainer(GroupLayout.java:910)
at java.awt.Container.layout(Container.java:1503)
at java.awt.Container.doLayout(Container.java:1492)
at java.awt.Container.validateTree(Container.java:1688)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validate(Container.java:1623)
at javax.swing.RepaintManager$2.run(RepaintManager.java:691)
at javax.swing.RepaintManager$2.run(RepaintManager.java:689)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:688)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1676)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:745)
at java.awt.EventQueue.access$300(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.awt.EventQueue$3.run(EventQueue.java:704)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:715)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91) #

1. A fatal error has been detected by the Java Runtime Environment: #
2. SIGSEGV (0xb) at pc=0x00007f1a9652b513, pid=29154, tid=139750602372864 #
3. JRE version: OpenJDK Runtime Environment (7.0_101) (build 1.7.0_101-b00)
4. Java VM: OpenJDK 64-Bit Server VM (24.95-b01 mixed mode linux-amd64 compressed oops)
5. Derivative: IcedTea 2.6.6
6. Distribution: Debian GNU/Linux 8.4 (jessie), package 7u101-2.6.6-2~deb8u1
7. Problematic frame:
8. C [libpthread.so.0+0xb513] __pthread_mutex_unlock_usercnt+0x3 #
9. Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again #
10. An error report file with more information is saved as:
11. /home/spaetz/Downloads/hs_err_pid29154.log #
12. If you would like to submit a bug report, please include
13. instructions on how to reproduce the bug and visit:
14. http://icedtea.classpath.org/bugzilla
15. The crash happened outside the Java Virtual Machine in native code.
16. See problematic frame for where to report the bug.
    #@