Trying to run Simple Neurite Tracer results in the error:

java.lang.SecurityException: sealing violation: package javax.media.j3d is sealed at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)

This appears to happen with both Apple and Oracle Java and with a number of different Fiji versions, on Mac OS X 10.9.4 and 10.7.5.

Information about your version of Java:

  os.arch => x86_64
  os.name => Mac OS X
  os.version => 10.9.4
  java.version => 1.6.0_65
  java.vendor => Apple Inc.
  java.runtime.name => Java(TM) SE Runtime Environment
  java.runtime.version => 1.6.0_65-b14-462-11M4609
  java.vm.name => Java HotSpot(TM) 64-Bit Server VM
  java.vm.version => 20.65-b04-462
  java.vm.vendor => Apple Inc.
  java.vm.info => mixed mode
  java.awt.graphicsenv => apple.awt.CGraphicsEnvironment
  java.specification.name => Java Platform API Specification
  java.specification.version => 1.6
  sun.cpu.endian => little
  sun.desktop => null
  file.separator => /

The up-to-date check says: UP_TO_DATE

Information relevant to JAVA_HOME related problems:

  JAVA_HOME is set to: null
  imagej.dir => /Applications/Fiji.app

Information about the version of each plugin:

Activated update sites:
ImageJ: http://update.imagej.net/ (last check:20140802165300)
Fiji: http://fiji.sc/update/ (last check:20140730200634)

Files not up-to-date:
  ed7019fd (MODIFIED) 20140725212049 Contents/Info.plist
  3abf4e77 (MODIFIED) 20140804094045 jars/ij-1.49d.jar