alice-teacher Alice Not Installing on Some Macs

[Vanderhyde, James]

It’s true; Alice 2.4 will not run on newer versions of the Mac OS. The OS no longer ships with this library file: libjawt.dylib.
The Alice team is working on Alice 2.5, which fixes the problem. There is also a workaround to install the missing library file for Alice 2.4. I’d rather let the Alice team explain how to do it and comment on when the new version is expected to ship.

James
—
James Vanderhyde
Assistant Professor, Computer Science
Program Director, Master of Applied Computer Science
Saint Xavier University
3700 W. 103rd St.
Chicago, IL 60655
773-298-3454

On Dec 12, 2017, at 7:46 AM, Chari Distler <distlerchari at gmail.com<mailto:distlerchari at gmail.com>> wrote:

Hi All,
I have been teaching Alice for 5 years. I just started a new trimester and 6 of the students personal Macs are not working. Each one of them gets an error when opening.
We tried several times. Downloading new, air dropping (which has worked in past) jump drives.

Here is the error. Any help would be appreciated.
Alice version: 2.4.3
os.name<http://os.name/>: Mac OS X
os.version: 10.11.6
os.arch: x86_64
java.vm.name<http://java.vm.name/>: Java HotSpot(TM) 64-Bit Server VM
java.vm.version: 20.65-b04-468
user.dir: /Users/suyangshi/Downloads/Alice 2.4.app/Contents/Required

Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: /Users/suyangshi/Downloads/Alice 2.4.app/Contents/Required/lib/osx/libjogl_awt.jnilib:  Library not loaded: /System/Library/Frameworks/JavaVM.framework/Libraries/libjawt.dylib   Referenced from: /Users/suyangshi/Downloads/Alice 2.4.app/Contents/Required/lib/osx/libjogl_awt.jnilib   Reason: image not found
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1833)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1748)
at java.lang.Runtime.loadLibrary0(Runtime.java:823)
at java.lang.System.loadLibrary(System.java:1044)
at com.sun.opengl.impl.NativeLibLoader.loadLibraryInternal(NativeLibLoader.java:189)
at com.sun.opengl.impl.NativeLibLoader.access$000(NativeLibLoader.java:49)
at com.sun.opengl.impl.NativeLibLoader$DefaultAction.loadLibrary(NativeLibLoader.java:80)
at com.sun.opengl.impl.NativeLibLoader.loadLibrary(NativeLibLoader.java:103)
at com.sun.opengl.impl.NativeLibLoader.access$200(NativeLibLoader.java:49)
at com.sun.opengl.impl.NativeLibLoader$2.run(NativeLibLoader.java:132)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.opengl.impl.NativeLibLoader.loadAWTImpl(NativeLibLoader.java:118)
at com.sun.opengl.impl.JAWT.getJAWT(JAWT.java:91)
at com.sun.opengl.impl.macosx.MacOSXOnscreenGLDrawable.lockSurface(MacOSXOnscreenGLDrawable.java:144)
at com.sun.opengl.impl.macosx.MacOSXOnscreenGLContext.makeCurrentImpl(MacOSXOnscreenGLContext.java:57)
at com.sun.opengl.impl.GLContextImpl.makeCurrent(GLContextImpl.java:134)
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:182)
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:412)
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
at javax.media.opengl.GLCanvas.paint(GLCanvas.java:277)
at sun.awt.RepaintArea.paintComponent(RepaintArea.java:276)
at sun.awt.RepaintArea.paint(RepaintArea.java:241)
at apple.awt.ComponentModel.handleEvent(ComponentModel.java:263)
at java.awt.Component.dispatchEventImpl(Component.java:4852)
at java.awt.Component.dispatchEvent(Component.java:4604)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:717)
at java.awt.EventQueue.access$400(EventQueue.java:82)
at java.awt.EventQueue$2.run(EventQueue.java:676)
at java.awt.EventQueue$2.run(EventQueue.java:674)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:690)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:687)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Exception in thread "AWT-EventQueue-0" javax.media.opengl.GLException: Attempt to make the same context current twice on thread Thread[AWT-EventQueue-0,6,main]
at com.sun.opengl.impl.GLContextLock.lock(GLContextLock.java:83)
at com.sun.opengl.impl.GLContextImpl.makeCurrent(GLContextImpl.java:131)
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:182)
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:412)
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
at javax.media.opengl.GLCanvas.paint(GLCanvas.java:277)
at javax.media.opengl.GLCanvas.update(GLCanvas.java:354)
at sun.awt.RepaintArea.updateComponent(RepaintArea.java:267)
at sun.awt.RepaintArea.paint(RepaintArea.java:233)
at apple.awt.ComponentModel.handleEvent(ComponentModel.java:263)
at java.awt.Component.dispatchEventImpl(Component.java:4852)
at java.awt.Component.dispatchEvent(Component.java:4604)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:717)
at java.awt.EventQueue.access$400(EventQueue.java:82)
at java.awt.EventQueue$2.run(EventQueue.java:676)
at java.awt.EventQueue$2.run(EventQueue.java:674)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:690)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:687)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Thanks
Chari
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