#231 process javaw.exe



I´ve a problem using drjava. When i go to compile a project "Run" and "Test" funcions of drjava main toolbar are disabled. I went to "Windows process manager" and there are 2 process called "javaw.exe" and his discription "Java (TM) Plataform". One has 66k of memory and the other 20k.

By ending the 20k process "Run" an "Test" funcions are active again.The ohter one is drjava,

Can somoene tell me why this happen? i'm usig VistaHomeP 32.

Thanks and sorry my english


  • Mathias Ricken

    Mathias Ricken - 2009-10-19

    We need to know a little bit more about your system to help you. Please go to "Help -> About" on the menu and click on "System Properties". Then, click the "Copy System Properties" button and paste the results here in a new comment.

    The DrJava Team

  • Fill Toc

    Fill Toc - 2009-10-20

    Well there it is:

    System Properties:
    DrJava Version drjava-20090821-r5004
    DrJava Build Time 20090821-1520

    drjava.debug.port = 57916
    java.runtime.name = Java(TM) SE Runtime Environment
    sun.boot.library.path = C:\Program Files\Java\jre6\bin
    java.vm.version = 14.2-b01
    java.vm.vendor = Sun Microsystems Inc.
    java.vendor.url = http://java.sun.com/
    path.separator = ;
    java.vm.name = Java HotSpot(TM) Client VM
    file.encoding.pkg = sun.io
    sun.java.launcher = SUN_STANDARD
    user.country = PT
    sun.os.patch.level = Service Pack 2
    java.vm.specification.name = Java Virtual Machine Specification
    user.dir = <anonymized user.home>\Desktop\ET
    java.runtime.version = 1.6.0_16-b01
    java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
    java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
    os.arch = x86
    java.io.tmpdir = C:\Users\UTILIZ~1\AppData\Local\Temp\ line.separator = "\u000d\u000a"
    java.vm.specification.vendor = Sun Microsystems Inc.
    user.variant =
    os.name = Windows XP
    sun.jnu.encoding = Cp1252
    java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Windows\SYSTEM32;C:\Windows;C:\Windows\SYSTEM32\WBEM;C:\PROGRAM FILES\COMMON FILES\ROXIO SHARED\DLLSHARED\;C:\PROGRAM FILES\COMMON FILES\ROXIO SHARED\DLLSHARED\;C:\PROGRAM FILES\COMMON FILES\ROXIO SHARED\9.0\DLLSHARED\;C:\Program Files\Panda Security\Panda Internet Security 2010\;C:\Program Files\Java\jre6\bin
    java.specification.name = Java Platform API Specification
    java.class.version = 50.0
    sun.management.compiler = HotSpot Client Compiler
    os.version = 5.1
    user.home = <anonymized user.home>
    user.timezone = Europe/London
    java.awt.printerjob = sun.awt.windows.WPrinterJob
    file.encoding = Cp1252
    java.specification.version = 1.6
    java.class.path = <anonymized user.home>\Desktop\ET\drjava-stable-20090821-r5004.exe
    user.name = <anonymized user.name>
    java.vm.specification.version = 1.0
    java.home = C:\Program Files\Java\jre6
    sun.arch.data.model = 32
    user.language = pt
    java.specification.vendor = Sun Microsystems Inc.
    awt.toolkit = sun.awt.windows.WToolkit
    java.vm.info = mixed mode, sharing
    java.version = 1.6.0_16
    java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
    sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
    java.vendor = Sun Microsystems Inc.
    file.separator = \ java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
    sun.io.unicode.encoding = UnicodeLittle
    sun.cpu.endian = little
    java.rmi.server.hostname =
    sun.desktop = windows
    sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

    #DrJava configuration file
    #Tue Oct 20 19:05:46 BST 2009
    extra.classpath = C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\acm.jar;C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\prog-ua.jar
    key.delete.next = [shift DELETE]
    key.delete.previous = [shift BACK_SPACE]
    remote.control.enabled = false
    recent.files = [C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\teste2.java,C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\a4e2.java,C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\a4e1.java,C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\a2e1.java,C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET\\exe11.java]
    window.height = 786
    window.width = 1296
    window.x = -8
    window.y = -8
    window.state = 6
    doc.list.width = 147
    last.dir = C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET
    last.interactions.dir = C:\\Users\\&lt;anonymized user.name>\\Desktop\\ET
    tabbedpanes.state = 640 400 700 400
    dialog.drjava.survey.enabled = false
    new.version.notification.last = 1255559975040
    drjava.survey.notification.last = 1255631775183
    drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=5004&os.name=Windows%20XP&os.version=5.1&java.version=1.6.0_16&java.vendor=Sun%20Microsystems%20Inc.
    file.ext.registration = never

    Used memory: about 19,09 megabytes
    Free memory: about 4,53 megabytes
    Total memory: about 23,63 megabytes
    Total memory can expand to: about 63,56 megabytes

    Number of processors/cores: 2

    It says os version is win XP but i have VistaHomeP 32


  • Mathias Ricken

    Mathias Ricken - 2009-10-20

    It probably shows "Windows XP" because you are running Java in Windows XP compatibility mode. I don't think that's the cause of the problem, though.
    Under Windows Vista Enterprise, I cannot reproduce this.

    The small process (20k) is the Interactions Pane JVM. It needs to be restarted after a compile, but seems to hang.

    Have you tried clearing your extra classpath (Preferences/Resource Locations) and compiling a simple "Hello World" program?

  • Mathias Ricken

    Mathias Ricken - 2009-10-20

    Also, do you have the JDK (Java Development Kit) installed? DrJava cannot
    compile with just the JRE (Java Runtime Environment) present, it needs
    the JDK.

  • Fill Toc

    Fill Toc - 2009-10-21

    Yes i put the program in "run compability mode : Win WP".

    In extra classpath trere are two files .jar that i need to run my projects.
    Howerver i cleared extra classpath and i've ran "hello world".
    But it is the same. "run" and "test" funcions are disabled and i need to end the 20k process manually to make them active.

    i've JDK 6.0_16.



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