如何在java中加载用des加密的rsa私有密钥

in my job i was assigned a task in which i have to programmatically load a private and public keys from files and then store them in a .jks file,the private key was generated using openssl, its an rsa des encrypted key in der format,i have no problem loading the public key, however,i haven't found a way to load the private key in its original form, the only way i found consist in decrypt the key and then convert it to a pk8 file, its there any other way to do it without decrypting the private key?in my job i was assigned a task in which i have