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How to force d20Pro to choose java 1.6?

Discussion in 'General Discussion' started by firebringer, Feb 16, 2014.

  1. firebringer

    firebringer Member

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    Greetings all,

    I have both java 1.6 and 1.7 installed on my machine. When I try to run d20Pro it always tries to use 1.7 which, unfortunately, causes problems. One very strange thing I've noticed is that if I have almost anything else open (IE, Google Chrome, Adobe Acrobat, etc) I get a fatal error stating that the Java Virtual Machine could not be created and the app fails to launch. I have to close everything and sometimes, sometimes d20Pro will then launch successfully.

    First, is there a way to force d20Pro to use 1.6 instead of 1.7? Second, if that is not the cause of the inability to launch the Java Virtual Machine, does anyone know what else could be causing that particular problem?

    Thanks in advance,

    Firebringer
     
    #1 firebringer, Feb 16, 2014
  2. kaltorak18

    kaltorak18 New Member

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    Edit your d20pro.bat file and set the

    "set JAVA=javaw" to "set JAVA=<PATHTOJAVA1.6>\javaw.exe" as it states in the comments:

    If your machine is x64 you probably have to edit the d20pro-64.bat
     
    #2 kaltorak18, Feb 19, 2014
  3. Wesley Gorby

    Wesley Gorby Production/Community Manager
    Staff Member

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    or if you are not using the bat (I don't) .. Just edit the info for the desktop shortcut "target".. using your own java path of course..

    "C:\Program Files (x86)\Java\jre6\bin\javaw.exe" -Xmx1280m -Dsun.java2d.ddoffscreen=false -Dsun.java2d.noddraw -Dsun.java2d.d3d=false -DBypassJavaVersionCheck=true -jar d20Pro.dat

    This happens on my wifes machine sometimes.. It is tied to available memory.. you might try adjusting what d20pro is asking/looking for on startup..
    -Xmx1280m ... I wana say the default is 512 or maybe even 256 ... one of the Dev team might chime in and correct me if I'm wrong...

    somewhere, tho I can not find it atm, is a whole list and help info on command line switches for d20pro ...
     
    #3 Wesley Gorby, Feb 19, 2014
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