Example 1 successfully executes but Example 2 does not. The reason is that a different Runtime.exec() method needs to be called in order to successfully invoke example 2 as explained in the stackoverflow post:

https://stackoverflow.com/a/25878208

Enhancement Request: Introduce two new methods in AQSystem:

runCommand(string[] cmdarray); Invokes Runtime.exec(String[] cmdarray)
runCommand(string[] cmdarray, folder); Invokes Runtime.exec(String[] cmdarray, null, dir)

Example 1:

importPackage(java.io);
var cmd = aqua.getSystem();
var p = cmd.runCommand("/bin/bash -c 'env' 2>&1","/tmp");

var stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));

var output = new Array;
        
do {
                // read the output from the command line by line
                var outline = stdInput.readLine();
                if(outline == null) { // no more data, stop
                    break;
                }
                print (outline);
                output.push(outline);
   } while(true);

stdInput.close()
                      
print ("Success");

Example 2:

importPackage(java.io);

var cmd = aqua.getSystem();
var p = cmd.runCommand("/bin/bash -c 'env && echo' 2>&1","/tmp");

var stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));

var output = new Array;

do {
// read the output from the command line by line
var outline = stdInput.readLine();
if(outline == null) { // no more data, stop
break;
}
print (outline);
output.push(outline);
} while(true);

stdInput.close()

print ("Success");