Ubuntu 15.04 Error

[Mikołaj Sochacki]

Hi,
I'm testing Kojo on new Ubuntu 15.04. And it not work on java 7 and 8, while is running on 6. I tested both openjdk and oracle and they throw the same exception:
Exception: java.lang.NullPointerException thrown from the UncaughtExceptionHandler in thread "AWT-EventQueue-0"

Sombody know what is a problem?

Regards
Mikolaj

[Lalit Pant]

Hi Mikołaj,

Do you have a stack trace for the problem (in ~/.kojo/lite/log/kojo0.log). Where do you see the exception? Does it show up in the output window?

/L

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[Mikołaj Sochacki]

HIre is stack form log:

[Pt maj 08 10:12:05 CEST 2015, Main] INFO: Kojo version: 2.4 Beta, 2.4.06
[Pt maj 08 10:12:05 CEST 2015, Main] INFO: Java version: 1.7.0_80-32bit. Scala version: 2.11.6
[Pt maj 08 10:12:05 CEST 2015, Main] INFO: System Properties:
apple.awt.graphics.UseQuartz = true
apple.laf.useScreenMenuBar = true
awt.toolkit = sun.awt.X11.XToolkit
file.encoding = UTF-8
file.encoding.pkg = sun.io
file.separator = /
java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment
java.awt.printerjob = sun.print.PSPrinterJob
java.class.path = /home/administrator/:/home/administrator/Kojo2/lib/AppleJavaExtensions.jar:/home/administrator/Kojo2/lib/autocomplete.jar:/home/administrator/Kojo2/lib/docking-frames-common.jar:/home/administrator/Kojo2/lib/docking-frames-core.jar:/home/administrator/Kojo2/lib/geogebra_algos.jar:/home/administrator/Kojo2/lib/geogebra_cas.jar:/home/administrator/Kojo2/lib/geogebra_export.jar:/home/administrator/Kojo2/lib/geogebra_gui.jar:/home/administrator/Kojo2/lib/geogebra.jar:/home/administrator/Kojo2/lib/geogebra_javascript.jar:/home/administrator/Kojo2/lib/geogebra_main.jar:/home/administrator/Kojo2/lib/geogebra_properties.jar:/home/administrator/Kojo2/lib/group-panel.jar:/home/administrator/Kojo2/lib/h2.jar:/home/administrator/Kojo2/lib/httpunit.jar:/home/administrator/Kojo2/lib/image-filters.jar:/home/administrator/Kojo2/lib/jdi.jar:/home/administrator/Kojo2/lib/jfugue.jar:/home/administrator/Kojo2/lib/jl1.0.1.jar:/home/administrator/Kojo2/lib/jlatexmath.jar:/home/administrator/Kojo2/lib/js-1.6R5.jar:/home/administrator/Kojo2/lib/jssc.jar:/home/administrator/Kojo2/lib/jtidy-4aug2000r7-dev.jar:/home/administrator/Kojo2/lib/jts.jar:/home/administrator/Kojo2/lib/kojo2.jar:/home/administrator/Kojo2/lib/piccolo2d-core.jar:/home/administrator/Kojo2/lib/piccolo2d-extras.jar:/home/administrator/Kojo2/lib/rithica.jar:/home/administrator/Kojo2/lib/rstaui.jar:/home/administrator/Kojo2/lib/rsyntaxtextarea.jar:/home/administrator/Kojo2/lib/scala-actors.jar:/home/administrator/Kojo2/lib/scala-compiler.jar:/home/administrator/Kojo2/lib/scala-library.jar:/home/administrator/Kojo2/lib/scala-parser-combinators.jar:/home/administrator/Kojo2/lib/scala-reflect.jar:/home/administrator/Kojo2/lib/scalariform.jar:/home/administrator/Kojo2/lib/scala-swing.jar:/home/administrator/Kojo2/lib/scala-xml.jar:/home/administrator/Kojo2/lib/table-layout.jar:/usr/share/java/jayatanaag.jar:/usr/share/java/jayatana.jar:/usr/share/java/jayatanaag.jar
java.class.version = 51.0
java.endorsed.dirs = /usr/lib/jvm/java-7-oracle/jre/lib/endorsed
java.ext.dirs = /usr/lib/jvm/java-7-oracle/jre/lib/ext:/usr/java/packages/lib/ext
java.home = /usr/lib/jvm/java-7-oracle/jre
java.io.tmpdir = /tmp
java.library.path = /home/administrator/.kojo/lite/libk
java.runtime.name = Java(TM) SE Runtime Environment
java.runtime.version = 1.7.0_80-b15
java.specification.name = Java Platform API Specification
java.specification.vendor = Oracle Corporation
java.specification.version = 1.7
java.util.logging.SimpleFormatter.format = [%1$tc, %3$s] %4$s: %5$s%6$s%n
java.vendor = Oracle Corporation
java.vendor.url = http://java.oracle.com/
java.vendor.url.bug = http://bugreport.sun.com/bugreport/
java.version = 1.7.0_80
java.vm.info = mixed mode
java.vm.name = Java HotSpot(TM) Client VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Oracle Corporation
java.vm.specification.version = 1.7
java.vm.vendor = Oracle Corporation
java.vm.version = 24.80-b11
line.separator =

os.arch = i386
os.name = Linux
os.version = 3.19.0-16-generic
path.separator = :
sun.arch.data.model = 32
sun.awt.enableExtraMouseButtons = true
sun.boot.class.path = /usr/lib/jvm/java-7-oracle/jre/lib/resources.jar:/usr/lib/jvm/java-7-oracle/jre/lib/rt.jar:/usr/lib/jvm/java-7-oracle/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-oracle/jre/lib/jsse.jar:/usr/lib/jvm/java-7-oracle/jre/lib/jce.jar:/usr/lib/jvm/java-7-oracle/jre/lib/charsets.jar:/usr/lib/jvm/java-7-oracle/jre/lib/jfr.jar:/usr/lib/jvm/java-7-oracle/jre/classes
sun.boot.library.path = /usr/lib/jvm/java-7-oracle/jre/lib/i386
sun.cpu.endian = little
sun.cpu.isalist =
sun.desktop = gnome
sun.font.fontmanager = sun.awt.X11FontManager
sun.io.unicode.encoding = UnicodeLittle
sun.java.command = net.kogics.kojo.lite.Main
sun.java.launcher = SUN_STANDARD
sun.jnu.encoding = UTF-8
sun.management.compiler = HotSpot Client Compiler
sun.os.patch.level = unknown
user.country = PL
user.dir = /home/administrator
user.home = /home/administrator
user.language = pl
user.name = administrator
user.timezone = Europe/Warsaw


[Pt maj 08 10:12:08 CEST 2015, CodeExecutionSupport] SEVERE: stderr> Exception in thread "AWT-EventQueue-0"
[Pt maj 08 10:12:08 CEST 2015, CodeExecutionSupport] SEVERE: stderr> Exception in thread "AWT-EventQueue-0"

[Lalit Pant]

Does the same installation of Kojo work fine with Java 1.6?

Do you see the problem in 'English' mode also?

The log does not show a stack trace, so it's difficult for me to speculate on what might be going wrong. Do you see a stack trace anywhere when the problem occurs -- in the console (if you run Kojo from a terminal window) or in the output pane or later on in the log file?

Is there any way I can 'log in' to your system to dig into things (I don't have access to an Ubuntu 15.04 installation).

/L

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[Mikołaj Sochacki]

Hi,

>Does the same installation of Kojo work fine with Java 1.6?

It works well.

>Do you see the problem in 'English' mode also?
>The log does not show a stack trace, so it's difficult for me to speculate on what might be going wrong. Do you see a stack trace anywhere >when the problem occurs -- in the console (if you run Kojo from a terminal window) or in the output pane or later on in the log file?

I'll be on Monday at work, and I'will check.


Mikolaj

[Lalit Pant]

Hi Mikolaj,

Any updates on this?

Regards,

- Lalit

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[Lalit Pant]

FYI: a similar sounding problem with a solution:
http://wiki.kogics.net/forum/t-1277900/kojo-hangs-on-loading-screen-in-ubuntu-15-04

/L