openssl rsa -des3 -in originalkey.pem -out passwordprotectedkey.pem.encrypt

Enter and verify a password of your choosing

1. Find where Java lives:

which java

2. Set JAVA_HOME:

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.131-2.b11.30.amzn1.x86_64/

3. Set the Java path:

export PATH=$PATH:$JAVA_HOME

4. Confirm path is set (as above) correctly:

echo $JAVA_HOME