httpClientからhttpsを接続する時、firefox/iosのように証明書が必要....
$JAVA_HOME/jre/lib/security/cacerts, where JAVA_HOME is your java home directory for the JVM you’re using.
keytool -import -alias charles -file
charles-proxy-ssl-proxying-certificate.crt -keystore
JAVA_HOME/jre/lib/security/cacerts -storepass changeit
(changeit is the default password on the cacerts file)
Then try: keytool -list -keystore JAVA_HOME/jre/lib/security/cacerts -storepass changeit