Message11968

Under ubuntu 17.10, the system installed Jython (2.7.1) ran find under Java 1.8. Today, I upgraded to Ubuntu 18.04, and Jython 2.7.1 crashes with the following:

============
Exception in thread "main" java.lang.NoSuchMethodError: java.nio.ByteBuffer.limit(I)Ljava/nio/ByteBuffer;
	at jline.internal.InputStreamReader.<init>(InputStreamReader.java:104)
	at jline.console.ConsoleReader.setInput(ConsoleReader.java:330)
	at jline.console.ConsoleReader.<init>(ConsoleReader.java:248)
	at org.python.util.JLineConsole.install(JLineConsole.java:107)
	at org.python.core.Py.installConsole(Py.java:1744)
	at org.python.core.PySystemState.initConsole(PySystemState.java:1258)
	at org.python.core.PySystemState.doInitialize(PySystemState.java:1109)
	at org.python.core.PySystemState.initialize(PySystemState.java:1023)
	at org.python.core.PySystemState.initialize(PySystemState.java:979)
	at org.python.core.PySystemState.initialize(PySystemState.java:974)
	at org.python.util.jython.run(jython.java:263)
	at org.python.util.jython.main(jython.java:
==============

I've verified my system default JVM is openJDK 1.8.0_162.

My development Jythons (2.7.0 and 2.7.2a1+) work fine.