[subbu@earth lib] jruby /tmp/boo.rb
[nil, 10]
[subbu@earth lib] jruby -X-C /tmp/boo.rb
["NoMethodError", 10]
[subbu@earth lib] cat /tmp/boo.rb
class C
def update(v); self.v = v; end

protected
attr_accessor :v
end

a = []
begin
a << C.new.v
rescue => e
a << e.class.name
end

begin
a << C.new.update(10)
rescue => e
a << e.class.name
end

p a