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There are failing tests in JavaScript, because there are is not registered HTML data object properly. See for example here: http://bertram-tst.netbeans.org:8080/job/javaee/3720/#showFailuresLink I think that it can be cased by the changes in registration or mime-types
The problems are caused by registration(!) of @org.openide.util.lookup.ServiceProvider(service=org.openide.filesystems.MIMEResolver.class) public class JsTestMimeResolver extends MIMEResolver { when this registration is found, the mime resolvers from @MR.xyzRegistration are ignored in test environment. I'll fix that together with bug 208160. *** This bug has been marked as a duplicate of bug 208160 ***