bots based on the koma library
uses the normal user api
If you get strange certificate issues, such as:
javax.net.ssl.SSLException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
A possible cause is that the Java Keystore is not correctly set up.
Check the type of the cert file, on some Linux systems, the path is
/etc/ssl/certs/java/cacerts, the type should be
On hosts where I got the error, the type is just
The cause of this probalem may be that the script used to update the
certificates has not run correctly.
On Debian, the script is
which is provided by the
and depends on Java to run.
stable) version of the script, 20170531,
does not support Java Runtime 11.
If you have only Java 11 installed, which is available in
you get the problem.
The solution is to install
which is 20180516 as of now, and does update the keystore correctly.