I am experiencing an error that prevents repast simphony from running when prompted from Eclipse. Instead of running a model when prompted, the window disappears and an error message appears within Eclipse.
The steps I've followed to this point on my Mac (for repast simphony setup) are:
1) Download a Java 8 JDK from Adopt Open JDK (since I need Java 8 to use repast 3D later). Copy the package to /Library/Java/JavaVirtualMachines.
2) Download Eclipse IDE for Eclipse Committers 2019-06 and put in Applications folder.
3) Install Groovy Eclipse 3.4.0 from the update site (https://dist.springsource.org/release/GRECLIPSE/3.4.0/e4.12), and install the Eclipse Groovy development tools and the Groovy compiler 2.4 from this link in Eclipse.
4) Install repast simphony 2.7.0 from https://repocafe.cels.anl.gov/repos/repast in Eclipse.
5) Set Groovy compiler to 2.4.17 in Eclipse.
6) Import repast examples
7) Select a demonstration model (e.g., GeoZombies) and try to run.
Once I complete step 7 above, I get several console warning messages:
WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields (file:/Applications/Eclipse.app/Contents/Eclipse/plugins/repast.simphony.runtime_2.7.0/lib/xstream-1.4.7.jar) to field java.util.TreeMap.comparator WARNING: Please consider reporting this to the maintainers of com.thoughtworks.xstream.core.util.Fields WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release
The Java window for repast simphony opens even though this error has appeared in the Eclipse console. However, when I click the button to "Start Run" in the Java window for GeoZombies, the Java window shuts with no warning, and the Eclipse console produces the following error:
2019-12-03 11:03:46.637 java[63571:533520] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSWindow drag regions should only be invalidated on the Main Thread!' * First throw call stack: ( 0 CoreFoundation 0x00007fff3bab6acd __exceptionPreprocess + 256 1 libobjc.A.dylib 0x00007fff66193a17 objc_exception_throw + 48 2 CoreFoundation 0x00007fff3bad0629 -[NSException raise] + 9 3 AppKit 0x00007fff390765ca -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 317 4 AppKit 0x00007fff390739f7 -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1479 5 AppKit 0x00007fff3907342a -[NSWindow initWithContentRect:styleMask:backing:defer:] + 45 6 libnativewindow_macosx.jnilib 0x0000000136bfdf9e Java_jogamp_nativewindow_macosx_OSXUtil_CreateNSWindow0 + 398 7 ??? 0x000000011e0f5c90 0x0 + 4799290512 ) libc++abi.dylib: terminating with uncaught exception of type NSException
I would appreciate any assistance someone can provide about how to resolve this error and get repast simphony working. Thank you.
This appeared to be an issue with letting Eclipse know which JRE to use. Navigating to Preferences -> Java -> Installed JREs, should show which JRE Eclipse is using and you can adjust to the appropriate version there. Currently Java 8 and Java 11 can be used. For more information on software requirements for Repast Simphony, see this page: https://repast.github.io/requirements.html