排序列表抛出ArrayIndexOutOfBoundsException

Question

The following innocent API call crashes the entire Jersey web application.

@Path("/sortlist")
public class SortList {
   @GET
   public void sort() {
       List<Dog> test = new ArrayList<>();
       test.add(new Dog("test"));
       test.add(new Dog("blah"));
       test.sort(Comparator.comparing(Dog::getName));
   }

   class Dog {
       private String name;
       public String getName() { return name; }
       public Dog(String name) { this.name = name; }
   }
}

It throws

javax.servlet.ServletException: Servlet.init() for servlet jersey-serlvet threw exception
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)

root cause
java.lang.ArrayIndexOutOfBoundsException: 20343
org.objectweb.asm.ClassReader.<init>(Unknown Source)

But why? Even synchronizing the sorting operation has no effect. Could this be a bug in one of the following technologies? Can you duplicate this problem?

• Tomcat 7.0.73
• Jersey 1.19.3
• Jetty 9.4.0.v20161208
• ASM 5.0.4

Answer 1

Apparently this is a Jersey Bug 1.X, as it does not support Java 8 well enough. Upgrading to Jersey 2.X solves this problem.

A Solution for jersey 1.X to this would be using a Java 7 approach for sorting.

Collections.sort(test, new Comparator<Dog>() {
    @Override
    public int compare(Dog o1, Dog o2) {
        return o1.getName().compareTo(o2.getName());
    }
});