Scripting in java... edit your java class and execute it directly as a shell script.

scripting.java.sh

#!/bin/bash

# "Scripting" java. Download jar dependencies if needed.
# execute it directly from command line: bash < <(curl -L -k https://raw.github.com/gist/3762558/b941980bf5cf6671c3ff1477982ce370015a8333/scripting.java.sh)

if [ ! -f junit-4.11-SNAPSHOT-20120805-1225.jar ];
then
    wget --no-check-certificate https://github.com/downloads/KentBeck/junit/junit-4.11-SNAPSHOT-20120805-1225.jar
fi
cat <<-EOF > Scripting.java

public class Scripting {
	public static void main(String[] args){
		System.out.println(" Hello \"Scripting\" java world.");
	}
}
EOF

if [ ! -f Scripting.class ];
then
    javac -classpath junit-4.11-SNAPSHOT-20120805-1225.jar Scripting.java
fi
time java -classpath .:junit-4.11-SNAPSHOT-20120805-1225.jar Scripting