[SHIRO-735] Shiro does not support servlet-3.1 void method(@Suspended AsyncResponse)

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 1.4.2
• Fix Version/s: 1.5.0
• Component/s: Authentication (log-in), Configuration, Web
• Labels: NullPointerException
• Environment: OpenLiberty 18.0.0.4 and higher ; Liberty Profile 18.0.0.4 and higher
• Assignee: Unassigned
• Reporter: Benjamin Marwell
• Created: 10/Jan/20 17:25
• Updated: 20/Jan/20 09:40
• Resolved: 16/Jan/20 12:14

Description

++When calling a method which is async (available since servlet 3.1 or even earlier), some web servers like liberty will throw a NPE.

 

example code:

@GET
public void getAction(final @Suspended AsyncResponse asyncResponse) {
  asyncResponse.resume(() -> Response.ok().build());
}

Even before the code is executed, shiro causes a NullPointerException in some application servers, because it does not advertise it is compatible with async servlets / methods.

 

This happens when used with the dependency shiro-servlet.

 

FIX (PR on the way): Add async to the web_fragment.xml.

Issue Links

• links to: GitHub Pull Request #193
• links to: GitHub Pull Request #196