Converting a Java Keystore into PEM Format

I am trying to convert from a Java keystore file into a PEM file using keytool and openssl applications. However, I could not find an ideal way to do the conversion. Any thoughts?

Instead of converting the keystore directly into PEM, I tried to create a PKCS12 file first and then convert it into a relevant PEM file and Keystore. However, I could not establish a connection using them.

(Note that I need a PEM file and a Keystore file to implement a secured connection. There is no restriction like "Start from a java keystore file". So starting from other formats is acceptable in my case)

But a direct conversion method from jks to pem is preferable.