fails(JRUBY-4869):Signal.trap ignores the signal when passed nil
fails(JRUBY-4869):Signal.trap accepts 'SIG_DFL' in place of a proc
fails(JRUBY-4869):Signal.trap accepts 'DEFAULT' in place of a proc
fails(JRUBY-4869):Signal.trap accepts 'SIG_IGN' in place of a proc
fails(JRUBY-4869):Signal.trap accepts 'IGNORE' in place of a proc
fails:Signal.trap ignores the signal when passed nil
fails:Signal.trap accepts 'SIG_DFL' in place of a proc
fails:Signal.trap accepts 'DEFAULT' in place of a proc
fails:Signal.trap accepts 'SIG_IGN' in place of a proc
fails:Signal.trap accepts 'IGNORE' in place of a proc
fails(JRUBY-5666):Signal.trap the special EXIT signal code accepts the EXIT code
fails(JRUBY-5666):Signal.trap the special EXIT signal code runs the proc before at_exit handlers
