Import PEM into Java Key Store
First, convert your certificate in a DER format :
openssl x509 -outform der -in certificate.pem -out certificate.derAnd after, import it in the keystore :
keytool -import -alias your-alias -keystore cacerts -file certificate.der
If you only want to import a certificate in PEM format into a keystore, keytool will do the job:
keytool -import -alias *alias* -keystore cacerts -file *cert.pem*
I've developed http://code.google.com/p/java-keyutil/ which imports PEM certificates straight into a Java keystore. Its primary purpose is to import a multi-part PEM Operating System certificate bundles such as ca-bundle.crt. These often includes headers which keytool cannot handle
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