Created attachment 140709 [details]
Screen shot of error stripe.

We are using JSP DynamicAttributes in our custom taglib.  We are passing dynamic attributes that include a period (.):

<ao:include
  page="/path/to/page.jsp"
  arg.title="This is the page title"
  arg.another="This is another argument"
/>

The arg.* attributes are picked-up by the JSP parser correctly, passed as DynamicAttributes, and everything works well.

However, the NetBeans JSP editor puts a red squiggly error strip on the lines starting where the attribute name has a dot.  The real problem is that this makes any JSP EL expression in the attribute entirely red and hard to read/maintain.

I propose that when DynamicAttributes are enabled, the error stripe should be less strict.  It should only high characters that would be invalid in an XML attribute name.  Because these attributes are not mapped to JavaBeans, but rather are DynamicAttributes, this more strict check is inappropriate.

I'll do my best to submit a patch (and get the copy for our developers working).  Any assistance would be greatly appreciated.