Cannot build Warp 1.0.0.Alpha7 with OpenJDK 8

java.lang.IllegalStateException: java.lang.IllegalStateException: Error instantiating proxy for annotation. Annotation type: interface org.jboss.arquillian.warp.impl.shared.TestingAnnotation
	at org.jboss.arquillian.warp.impl.shared.SerializedAnnotation.getAnnotation(SerializedAnnotation.java:61)
	at org.jboss.arquillian.warp.impl.shared.TestExecutedMethod.testSerializedAnnotation(TestExecutedMethod.java:49)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.IllegalStateException: Error instantiating proxy for annotation. Annotation type: interface org.jboss.arquillian.warp.impl.shared.TestingAnnotation
	at org.jboss.arquillian.warp.impl.utils.AnnotationInstanceProvider.get(AnnotationInstanceProvider.java:83)
	at org.jboss.arquillian.warp.impl.shared.SerializedAnnotation.getAnnotation(SerializedAnnotation.java:59)
	... 24 more
Caused by: java.lang.IllegalAccessException: Class org.jboss.arquillian.warp.impl.utils.AnnotationInstanceProvider can not access a member of class org.jboss.arquillian.warp.impl.shared.$Proxy5 with modifiers "public"
	at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:101)
	at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:295)
	at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:287)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:398)
	at org.jboss.arquillian.warp.impl.utils.AnnotationInstanceProvider.get(AnnotationInstanceProvider.java:76)
	... 25 more