Invalid keystore format

Dear all,
I’ve created an new key- and truststore with an new certificate.
With this new keystore the Nexus doesn’t work.
This is written in the Nexus-logfile:
ERROR [jetty-main-1] *SYSTEM - Failed to start Invalid keystore format

Does anyone have an idea why this is happening?
There are no problems with the other web servers that use this keystore.

Convert our Java specific keystore binary".jks" file to a widely compatible PKCS12 keystore “.p12” file:

keytool -importkeystore -srckeystore keystore.jks -destkeystore example.p12 -deststoretype PKCS12

Hi Tim,
thank you for your reply.
I use signed certificates and import a PKCS12 file into the JKS.
Until now, Jetty has always worked with it.
Nothing has been changed about Jetty itself.