# File lib/web_console/integration/jruby.rb, line 21
      def set_exception_bindings_trace_func
        proc do |event, file, line, id, binding, classname|
          case event
          when 'raise'
            if $ERROR_INFO.bindings.empty?
              # binding_of_caller will generate an improperly built binding at
              # caller[1]. Every call to a non existent method, constant or a
              # local variable will result in a Java NullPointerException.
              #
              # The binding that Kernel#set_trace_func is giving us is properly
              # built, so we can use in place of the broken one.
              bindings = ::Kernel.binding.callers.drop(2).unshift(binding)
              $ERROR_INFO.instance_variable_set(:@bindings, bindings)
            end
          end
        end
      end