The problem is that RestEasy is using getProxyClass() which is deprecated in 9.
RestEasy want to do a call to Constructor.newInstance on a constructor of the proxy class, and as Stephane said, RestEasy (which is in the unamed module in your case) do not have access to the proxy class which is in a dynamic module quote from the javadoc of j.l.r.Proxy " Dynamic Modules A dynamic module is a named module generated at runtime. A proxy class defined in a dynamic module is encapsulated and not accessible to any module. Calling Constructor.newInstance(Object...) on a proxy class in a dynamic module will throw IllegalAccessException; Proxy.newProxyInstance method should be used instead. " so the solution is easier to add a read edge in the code of RestEasy as Stephane said or to change the code of RestEasy to use newProxyInstance() instead. regards, Rémi ----- Mail original ----- > De: "Stephane Epardaud" <s...@epardaud.fr> > À: jigsaw-dev@openjdk.java.net > Envoyé: Jeudi 7 Avril 2016 15:02:28 > Objet: Re: Proxy classes and reflection (IllegalAccessException) > > No, you have to add a read to the module of the class you're proxying, > not com.sun.proxy. That'd be your application's module. > > On 07/04/16 14:25, Neil Bartlett wrote: > > Stephane, I don’t think that would help since the package is not exported: > > "module jdk.proxy2 does not export com.sun.proxy.jdk.proxy2”. > > > > Regards, > > Neil > > > >> On 7 Apr 2016, at 13:13, Stephane Epardaud <s...@epardaud.fr> wrote: > >> > >> IIRC RestEasy needs to add a module read to that Class's module it wants > >> to create a Proxy of. > >> > >> On 07/04/16 14:05, Alan Bateman wrote: > >>> On 07/04/2016 12:39, Dawid Weiss wrote: > >>>> I don't want to hijack the other thread, so here's a new one I'm stuck > >>>> with. I get this exception (simplified stack trace a bit): > >>>> > >>>> Caused by: java.lang.IllegalAccessException: class > >>>> org.jboss.resteasy.core.ContextParameterInjector cannot access class > >>>> com.sun.proxy.jdk.proxy2.$Proxy65 (in module jdk.proxy2) because > >>>> module jdk.proxy2 does not export com.sun.proxy.jdk.proxy2 to unnamed > >>>> module @79ca92b9 > >>>> at > >>>> sun.reflect.Reflection.throwIllegalAccessException(java.base@9-ea/Reflection.java:411) > >>>> at > >>>> sun.reflect.Reflection.throwIllegalAccessException(java.base@9-ea/Reflection.java:402) > >>>> at > >>>> sun.reflect.Reflection.ensureMemberAccess(java.base@9-ea/Reflection.java:99) > >>>> at > >>>> java.lang.reflect.AccessibleObject.slowCheckMemberAccess(java.base@9-ea/AccessibleObject.java:355) > >>>> at > >>>> java.lang.reflect.AccessibleObject.checkAccess(java.base@9-ea/AccessibleObject.java:347) > >>>> at > >>>> java.lang.reflect.Constructor.newInstance(java.base@9-ea/Constructor.java:444) > >>>> at > >>>> org.jboss.resteasy.core.ContextParameterInjector.createProxy(ContextParameterInjector.java:94) > >>>> ... 53 more > >>>> > >>>> I think RestEasy attempts to do create a new instance of a proxy class > >>>> here (the complete process here eludes my understanding for now). Any > >>>> clues how this can be solved? > >>> I assume it should be using newProxyInstance rather that trying to > >>> instantiate the proxy class directly. The reason it can't instantiate it > >>> directly is because it has been generated into a "dynamic module" > >>> (jdk.proxy2 in this case). I assume you'll find that the proxy was > >>> created with an interface that is not in an exported package. > >>> > >>> The "Package and Module Membership of Proxy Class" and "Dynamic Modules" > >>> sections of the Proxy javadoc [1] has all the details. > >>> > >>> -Alan. > >>> > >>> [1] > >>> http://download.java.net/java/jdk9/docs/api/java/lang/reflect/Proxy.html > >>> > >>> > >
