private LocatorLauncher awaitStart(final File workingDirectory) {
    try {
      launcher = new Builder().setWorkingDirectory(workingDirectory.getCanonicalPath()).build();
      awaitStart(launcher);
      assertThat(process.isAlive()).isTrue();
      return launcher;
    } catch (IOException e) {
      throw new UncheckedIOException(e);
    }
  }
Please leave unused parameter throwableClass for improved readability.
geode-core/src/integrationTest/java/org/apache/geode/distributed/LocatorLauncherRemoteIntegrationTestCase.java