How to capture all Bash output in Java

I already have Java code that can handle all the output from stdout and stderr, and that all works fine. It uses getInputStream() and getErrorStream();

If I enter a command like this in a Bash terminal:

export ANDROID_HOME=/usr/local/bin/android-sdk-linux;export PATH=${PATH}:/usr/local/bin/gradle-1.8/bin;cd /var/local/android/dev/GradleHelloWorld;gradle clean

It gets extra output like:

> Loading

>Loading Resolving dependencies ...

>Building

Until it gets the regular "end" output:

:clean UP-TO-DATE

BUILD SUCCESSFUL

Total time: 2 mins 37.424 secs

But after trying many different combinations of, the below, with and without the "-c":

processBuilder = new ProcessBuilder("bash", "-c", sCmd);

proc = rt.exec(new String[] {"/bin/bash", "-c", commandS});

I know those are pretty much the same, but you get the idea. It only shows the "end" result, and not any of the other output before it.

For Windows I can get all the output with no problem, using:

proc = rt.exec("cmd.exe");

and the command string.

I don't know that much about Bash, so is there any other options I can try, or a different Java statement I can use to try to capture all the output using Java?