I have a problem with the GlassFish server, I'm doing the Oracle example to connect JavaFX with Java-EE. I really do not know anything about JavaEE I'm learning and I do not know where the problem is:
Application code is here.
Browser response when I want to enter:
localhost: 8080 / ServerSide / webresources / customer
Response extracted from the comments from gugadev
It seems to be an EclipseLink and GlassFish 4.x bug, as reported here . This bug was patched as far as I understand (some packages were missing that were added to the manifest). You can find more information about it in the comments at the end of the information link above.
Since Oracle abandoned support for GlassFish, even the community version does not get to be as good as it was before. Try to use Payara as much as you can (it's a patched and optimized GlassFish) and the latest version of EclipseLink .