The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format using “keytool -importkeystore -srckeystore -destkeystore -deststoretype pkcs12”

keytool -importkeystore -srckeystore [MY_KEYSTORE.jks] -destkeystore [MY_FILE.p12] -srcstoretype JKS -deststoretype PKCS12 -deststorepass [PASSWORD_PKCS12]
keytool -importkeystore -srckeystore test.jks -destkeystore test.p12 -srcstoretype JKS -deststoretype PKCS12 -deststorepass 123123