Nashorn gives an error where client rendering doesn't. Do you know what is wrong? StackOverflow:

[paulwehner]

http://stackoverflow.com/questions/29429955/error-rendering-react-js-using-jvm-nashorn-play-framework-i-get-null-is-not

[ssorallen]

I was able to reproduce this locally. I will do some testing and see if I can figure out what's going wrong.

I noticed your addition of console = ... to make console logging possible from inside Nashorn. Would you mind contributing that to the project?

[paulwehner]

I just added that edit for console. Please let me know if you figure anything out. I realized that it was the element that caused the error. If I removed that from the React render function, then it runs fine within Nashorn. Not sure why would cause React to stop working within Nashorn though.

[ssorallen]

I've narrowed this down to only a few React element instantiations, but I'm still unclear why this is a problem for Nashorn. Pasting this here in case anyone else tries it and figures out why it fails in Nashorn:

var App = React.createClass({
  render: function() {
    return (
      React.createElement("div", null,
        React.createElement("button"),
        React.createElement("input")
      )
    );
  }
});

[paulwehner]

Just tested it, and it works in 8u60 release. For some reason it breaks in the previous releases.

[ssorallen]

Thanks for checking the new release. Do you know when that will make it into a Java release?

If a new version of Nashorn solves this problem, I won't investigate any further and instead suggest people upgrade Java versions.

[ssorallen]

This was a bug in a specific version of Java. It's far outdated at this point, so I'm closing this.