Java

Java information

To list keys in java keystore.

/usr/java/jre1.6.0_03/bin/keytool --list --keystore /usr/java/jre1.6.0_03/lib/security/cacerts

Import key in java keystore.

openssl x509 -outform der -in certificate.pem -out certificate.der
keytool -import -alias your-alias -keystore cacerts -file certificate.der

List content of der.

openssl x509 -in BPClass3RootCA.cer -inform der -noout -text

show jar file signing=

jarsigner -verify -verbose -certs file.jar

modify settiings

jcontrol

connect via jmx=

jcontrol

java options

Sets the initial memory size

-Xms256m / -ms256m

Specifies the maximum memory size

-Xmx2048m / -mx20148m