lhazlewood

# Specifically JDK installations (contain 'javac' command) and not JREs:
yum --disablerepo=* whatprovides '*/bin/javac' | grep ilename | awk -F': ' '{print $2}' | sed 's/\/bin\/javac//'

# All JRE installations (those with bin/java but without bin/javac).  Includes JREs that are included in JDKs.
for candidate in $(yum --disablerepo=* whatprovides '*/bin/java' | grep ilename | awk -F': ' '{print $2}' | sed 's/\/bin\/java//'); do
  if [ ! -x "${candidate}/bin/javac" ]; then
    echo "${candidate}"
  fi
done

lhazlewood

$ NAME="macOSSierra"
$ VBoxManage setextradata "$NAME" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Mac-F22589C8"
$ VBoxManage setextradata "$NAME" "VBoxInternal/Devices/efi/0/Config/DmiSystemSerial" "CK1156I6DB6"
$ VBoxManage modifyvm "$NAME" --paravirtprovider none
# after reboot:
$ VBoxManage modifyvm "$NAME" --paravirtprovider default

lhazlewood

java -XshowSettings:properties -version 2>&1 | grep 'java.vendor =' | awk -F'= ' '{print $2}'

lhazlewood

for (Provider provider : Security.getProviders()) {
    for (def service : provider.getServices()) {
        if (service.getType() == 'AlgorithmParameters' && service.getAlgorithm() == 'EC') {
            String result = service.getAttribute('SupportedCurves')
            String[] split = Strings.delimitedListToStringArray(result, '|')
            println "supported curves: "
            for(String s : split) {
                String[] cleaned = Strings.delimitedListToStringArray(s, ',' ,'[]')
                Set<String> names = io.jsonwebtoken.lang.Collections.setOf(cleaned)
                println names.join(', ')