That's the curl output:
~# curl -v -I 'https://download.bell-sw.com/java/21.0.9+11/bellsoft-jdk21.0.9+11-linux-arm32-vfp-hflt.tar.gz'
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.3 ...

Thank you
Unfortunately, it didn't work out...

Thank you for figuring that out.
Do you think there is anything I can do about it?

Btw: How can I have it as console output?
Thanks.

That's the output:

root@DS414:~# curl -v -I 'https://download.bell-sw.com/java/21.0.9+11/bellsoft-jdk21.0.9+11-linux-arm32-vfp-hflt.tar.gz'
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8 ...

It says:

root@DS414:~# openssl s_client -connect download.bell-sw.com:443
CONNECTED(00000004)
depth=1 C = GB, O = Sectigo Limited, CN = Sectigo Public Server Authentication CA OV R36
verify error:num=20:unable to get local issuer certificate
verify return:1
depth=0 C = US, ST = California, O ...

Negative, it's still not working...

Device: DS414
DSM Version: DSM 7.1.1-42962 Update 9

Thanks!

Okay, thank you for the information.

Thank you very much!

What makes me wonder is that I didn’t have any problem installing the Java installer at first. But then, all of a sudden, it stopped working, and the package showed “Repair.” Now I can’t reinstall it anymore.

The log says:

cmp: EOF on /volume1/@appstore/java-installer/get-java.sh.asc
Wed Dec 3 14:13:38 CET 2025: AUTO UPDATE
gpgv: Signature made Sun Nov 9 10:35:16 2025 CET
gpgv: using RSA key B0976E51E5C047AD0FD051294E402EBF7C3C6A71
gpgv: issuer "[email protected]"
gpgv: Good signature from "Reinhard ...

rednoah wrote: ↑02 Dec 2025, 03:00 This problem has been solved. The root cause is adding a 3rd party package repository that uses the same package ID as the official packages from our official repository.

Please read the posts above for details.

I don't have this package repository installed and never had.

I'm sorry to inform you that I am also experiencing the problem mentioned below.


Currently having an issue with the Synology Java installer (23) on Synology DSM 7.2.2-72806 Update 5
DSM update was automatically installed overnight
Checksum mismatch and curl resolve host error in the install ...