Q: how to specify the '' while using 'keytool -importcert ... -providerpath ...' while using command below:
keytool -importcert -v -trustcacerts -alias mycert -file cacert.pem \
-keystore mycert.bks -storetype BKS \
-providerpath /path/to/prov-1.53.0.0.jar \ 
-providerclass org.spongycastle.jce.provider.BouncyCastleProvider \
-storepass blahblah
it generate this:

Exception in thread "main" java.lang.NoClassDefFoundError: org/spongycastle/util/Strings
  ...
  Caused by: java.lang.ClassNotFoundException: org.spongycastle.util.Strings
  ...

so I figured I also need to pass the /path/to/core-1.53.0.0.jar to the -providerpath
keytool -importcert -help shows -providerpath <pathlist>, I don't know whether it implicates I can attach a list-like param to it or not, and if so which is the right way to do it.(i have tried using space as delimiter like the bash array, comma like the c array, also the colon)

A: The -providerpath argument can take a colon delimited list of jars, similar to the -cp or -classpath argument to the java command.
