$ java -jar BON-2.3.0-beta2-6-all.jar
Bearded Octo Nemesis v2.3.0-beta2-6 by Parker8283. BON v1 by immibis.
No arguments passed. Launching gui...
java.lang.NumberFormatException: For input string: "mcp_snapshot-20161112-1.10.2.zip"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
	at java.lang.Integer.parseInt(Integer.java:580)
	at java.lang.Integer.valueOf(Integer.java:766)
	at com.github.parker8283.bon2.data.VersionJson$MappingsJson.hasSnapshot(VersionJson.java:16)
	at com.github.parker8283.bon2.data.VersionLookup.getVersionFor(VersionLookup.java:51)
	at com.github.parker8283.bon2.util.BONUtils.getFullVersion(BONUtils.java:50)
	at com.github.parker8283.bon2.util.BONUtils.buildValidMappings(BONUtils.java:39)
	at com.github.parker8283.bon2.gui.RefreshListener.mouseClicked(RefreshListener.java:34)
	at com.github.parker8283.bon2.BON2Gui.<init>(BON2Gui.java:75)
	at com.github.parker8283.bon2.BON2$1.run(BON2.java:115)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)