am 66cbe5b1: am bf1bb914: am 4a888b09: Two exception-related tweaks: (1) Make the dynamic exception construction mechanism be able to handle exception constructors that take Object instead of String. (2) Add a convenience in JNIHelp to throw RuntimeExceptions.

Merge commit '66cbe5b10e3bd9f7b3c262a2ec8a3c11087baa80'

* commit '66cbe5b10e3bd9f7b3c262a2ec8a3c11087baa80':
  Two exception-related tweaks: (1) Make the dynamic exception construction