According to the javadoc comments for javax.ws.rs.core.UriBuilder.path(Class resource), an IllegalArgumentException should be thrown if resource is not annotated with

{@link javax.ws.rs.Path}

As currently implemented, path(resource) checks for null resource, but doesn't check for the annotation.

Simple test to demonstrate bug:

import org.junit.Test;

public class UriBuilderTest {

@Test(expected=IllegalArgumentException.class)
public void testBuildUriInvalidResource()

{ UriBuilder uriBuilder = UriBuilder.fromResource(Object.class); }

}