Mvnd dont exit with Non-zero value when error occurs.

Here is my java code:

```java
public void execInstall() {
ProcessBuilder pb = new ProcessBuilder("mvnd install").inheritIO();
Process process = pb.start();
process.waitFor();
if (process.exitValue() == 0) {
// This means suceed
} else {
// This means some error occured
}
}
```

But this haven't act as what I want.When something wrong occurs with the "mvnd install", I didn't get a non-zero value from the `process.exitValue()`.

When I change the `mvnd` to `mvn`, it just act as I want.

Help me plz.

Reproduce the reported behavior using the Java ProcessBuilder example with `mvnd install`, then compare its exit status with `mvn install` when the command fails. Trace how mvnd reports child-process failures and define done as returning a non-zero status consistently with Maven; the issue names no repository files or tests to start from.

Written by the indexing model from the issue text.