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https://issues.apache.org/jira/browse/SHIRO-473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergiy Sokolenko updated SHIRO-473:
-----------------------------------
Attachment: DefaultAnnotationResolver.java.patch
> DefaultAnnotationResolver.getAnnotation throws NullPointerException
> -------------------------------------------------------------------
>
> Key: SHIRO-473
> URL: https://issues.apache.org/jira/browse/SHIRO-473
> Project: Shiro
> Issue Type: Bug
> Components: Integration: JEE
> Affects Versions: 1.2.2
> Environment: Cross platform / Play Framework 2.2
> Reporter: Sergiy Sokolenko
> Labels: AOP, AnnotationResolver, NullPointerException
> Attachments: DefaultAnnotationResolver.java.patch
>
>
> h3. Bug Description
> The method org.apache.shiro.aop.DefaultAnnotationResolver.getAnnotation
> throws NullPointerException when a given MethodInvocation argument represents
> static method:
> h3. Technical Info
> [http://shiro.apache.org/static/1.2.2/apidocs/src-html/org/apache/shiro/aop/DefaultAnnotationResolver.html#line.62]:
> {code}
> return annotation == null ? mi.getThis().getClass().getAnnotation(clazz) :
> annotation;
> {code}
> if annotation is null and mi represents static method invocation, then
> mi.getThis() will return null causing the following chained call
> {{getClass()}} fail with NullPointerException.
> I get this exception when I add Shiro annotation(s) to Play Framework's
> controller action, like this:
> {code}
> public class Application extends Controller {
> @RequiresAuthentication
> public static Result index() {
> return ok("Hello Shiro!");
> }
> }
> {code}
> h3. Possible Solution
> Return null if mi.getThis() is null in
> DefaultAnnotationResolver.getAnnotation:
> {code}
> if (annotation == null) {
> Object o = mi.getThis();
> if (o != null) {
> annotation = o.getClass().getAnnotation(clazz);
> }
> }
> return annotation;
> {code}
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