bug in iMac
java.lang.NullPointerException
at users.sgeducation.lookang.chargeinNScyclotron_pkg.chargeinNScyclotronView.reset(chargeinNScyclotronView.java:1831)
at org.colos.ejs.library.Animation.reset(Unknown Source)
at users.sgeducation.lookang.chargeinNScyclotron_pkg.chargeinNScyclotronSimulation.(chargeinNScyclotronSimulation.java:23)
at users.sgeducation.lookang.chargeinNScyclotron_pkg.chargeinNScyclotron.(chargeinNScyclotron.java:142)
at users.sgeducation.lookang.chargeinNScyclotron_pkg.chargeinNScyclotronApplet.init(chargeinNScyclotronApplet.java:27)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1640)
at java.lang.Thread.run(Thread.java:680)

the interesting thing i tried to open in iMac to recompile the source code but the Ejs console says "
error in reading file.