External Program Invocation in Java

Users who wish to shell out a Java program may be tempted to use Runtime.exec(), which yields a Process. They probably should use zt-exec instead. However, for those who think that using a separate library for something so “simple” is overkill, please read on. General Notes Java does not invoke a shell – Java uses execve(). This means that variables like ~, %HOME%, and “$JAVA_HOME” will not be expanded, nor will you be able to...