function set_example_env
{
SCRIPT_NAME=$0
EXAMPLE=$1

if [ -z $EXAMPLE ]; then
    echo usage: $SCRIPT_NAME example
    echo where \"example\" is a directory under com.tangosol.examples
    echo
    echo example: $SCRIPT_NAME contacts
    echo
    echo current directories: $(ls ./src/$EXAMPLE_PATH_BEGIN)
    exit 1
fi
}