SOLVED! Thank you.
The only one problem is AbsoluteLayout.jar is not included within my app's JAR. The solution is (via Netbeans):
1) Create new package named
org.netbeans.lib.awtextra within project.
2) Just copy-paste
AbsoluteLayout.class and
AbsoluteConstraints.class from
org.netbeans.lib.awtextra in the bottom of it to that package. Look at your left side of Netbeans.
3) Build and Clean again.
4) Done, perfectly.
You can see the screenshot here:
M9JGdKp.jpg
And my conclusion is we need to add new package of AbsoluteLayout within our project if our project has used AbsluteLayout. Alhamdulillah, all praises to Allah. All done. Thank you
Reference:
https://forums.oracle.com/forums/thr...sageID=5528267 (really solves my problem!)