#347 Running on Ubuntu 18.04--error upon start up
Dr. Java won't run on Ubunut 18.04. When I start it, the splash screen comes up, but then I get this error message (see below)
Thanks, Hans
edu.rice.cs.util.UnexpectedException: java.lang.reflect.InvocationTargetException
at edu.rice.cs.util.swing.Utilities.invokeAndWait(Utilities.java:76)
at edu.rice.cs.drjava.ui.MainFrame.<init>(MainFrame.java:3276)
at edu.rice.cs.drjava.DrJavaRoot.main(DrJavaRoot.java:159)
at edu.rice.cs.drjava.DrJava.configureAndLoadDrJavaRoot(DrJava.java:374)
at edu.rice.cs.drjava.DrJava.main(DrJava.java:247)
Caused by: java.lang.reflect.InvocationTargetException
at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1367)
at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1342)
at edu.rice.cs.util.swing.Utilities.invokeAndWait(Utilities.java:75)
... 4 more
Caused by: java.lang.NullPointerException
at edu.rice.cs.plt.io.IOUtil.parsePath(IOUtil.java:880)
at edu.rice.cs.drjava.model.DefaultGlobalModel.findLibraries(DefaultGlobalModel.java:381)
at edu.rice.cs.drjava.model.DefaultGlobalModel.<init>(DefaultGlobalModel.java:196)
at edu.rice.cs.drjava.ui.MainFrame$163.run(MainFrame.java:3284)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:303)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)</init></init>
Caused by:
java.lang.reflect.InvocationTargetException
at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1367)
at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1342)
at edu.rice.cs.util.swing.Utilities.invokeAndWait(Utilities.java:75)
at edu.rice.cs.drjava.ui.MainFrame.<init>(MainFrame.java:3276)
at edu.rice.cs.drjava.DrJavaRoot.main(DrJavaRoot.java:159)
at edu.rice.cs.drjava.DrJava.configureAndLoadDrJavaRoot(DrJava.java:374)
at edu.rice.cs.drjava.DrJava.main(DrJava.java:247)
Caused by: java.lang.NullPointerException
at edu.rice.cs.plt.io.IOUtil.parsePath(IOUtil.java:880)
at edu.rice.cs.drjava.model.DefaultGlobalModel.findLibraries(DefaultGlobalModel.java:381)
at edu.rice.cs.drjava.model.DefaultGlobalModel.<init>(DefaultGlobalModel.java:196)
at edu.rice.cs.drjava.ui.MainFrame$163.run(MainFrame.java:3284)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:303)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)</init></init>
System Properties:
DrJava Version drjava-20160913-225446
DrJava Build Time 20160913-225446
sun.desktop = gnome
awt.toolkit = sun.awt.X11.XToolkit
java.specification.version = 10
file.encoding.pkg = sun.io
sun.cpu.isalist =
sun.jnu.encoding = UTF-8
java.class.path = <anonymized user.home="">/Downloads/drjava-beta-20160913-225446.jar
sun.awt.enableExtraMouseButtons = true
java.vm.vendor = Oracle Corporation
sun.arch.data.model = 64
sun.font.fontmanager = sun.awt.X11FontManager
java.vendor.url = http://java.oracle.com/
user.timezone = America/New_York
os.name = Linux
java.vm.specification.version = 10
sun.java.launcher = SUN_STANDARD
user.country = US
sun.boot.library.path = /usr/lib/jvm/java-11-openjdk-amd64/lib
sun.java.command = <anonymized user.home="">/Downloads/drjava-beta-20160913-225446.jar
jdk.debug = release
sun.cpu.endian = little
user.home = <anonymized user.home="">
user.language = en
java.specification.vendor = Oracle Corporation
java.version.date = 2018-04-17
java.home = /usr/lib/jvm/java-11-openjdk-amd64
file.separator = /
java.vm.compressedOopsMode = 32-bit
line.separator = "\u000a"
java.specification.name = Java Platform API Specification
java.vm.specification.vendor = Oracle Corporation
java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment
sun.management.compiler = HotSpot 64-Bit Tiered Compilers
java.runtime.version = 10.0.1+10-Ubuntu-3ubuntu1
user.name = <anonymized user.name="">
path.separator = :
os.version = 4.15.0-32-generic
java.runtime.name = OpenJDK Runtime Environment
file.encoding = UTF-8
java.vm.name = OpenJDK 64-Bit Server VM
java.vendor.url.bug = http://bugreport.java.com/bugreport/
java.io.tmpdir = /tmp
java.version = 10.0.1
user.dir = <anonymized user.home="">
os.arch = amd64
java.vm.specification.name = Java Virtual Machine Specification
java.awt.printerjob = sun.print.PSPrinterJob
sun.os.patch.level = unknown
java.library.path = /usr/java/packages/lib:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
java.vendor = Oracle Corporation
java.vm.info = mixed mode
java.vm.version = 10.0.1+10-Ubuntu-3ubuntu1
sun.io.unicode.encoding = UnicodeLittle
java.class.version = 54.0</anonymized></anonymized></anonymized></anonymized></anonymized>
DrJava configuration file
In resource bundle edu.rice.cs.drjava.config.options:
nothing
In shadowed configuration:
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
last.dir = <anonymized user.home=""></anonymized>
Used memory: about 27.85 megabytes
Free memory: about 96.15 megabytes
Total memory: about 124 megabytes
Total memory can expand to: about 1.93 gigabytes
Number of processors/cores: 4
Compiler Discovery Log:
