Our SAST shows possible NullPointerException in https://github.com/jruby/jruby/blob/master/core/src/main/java/org/jruby/util/StringSupport.java#L2178

        if (opts != context.nil) {
            IRubyObject _chomp = ArgsUtil.extractKeywordArg(context, "chomp", opts);
            chomp = _chomp != null || _chomp.isTrue();
        }

If _chomp is null, then _chomp.isTrue() will cause NPE

Environment Information

We are analyzing versions 9.4.x (8-12), but this problem is still in master

Expected Behavior

• No NPE at all. But it seems nobody catch it through the years, so i don't know if this variable can be null at all

Actual Behavior

• I have no tests to show this NPE, can't figure out how to make one. This is simply code analysis, that showed possible NPE