code: private void generateJMeterDirectoryTree() {
          File workingDirectory = new File(jmeterDirectory, "bin");
          workingDirectory.mkdirs();
          JMeterConfigurationHolder.getInstance().setWorkingDirectory(workingDirectory);
          customPropertiesDirectory = new File(jmeterDirectory, "custom_properties");
          customPropertiesDirectory.mkdirs();
          libDirectory = new File(jmeterDirectory, "lib");
          libExtDirectory = new File(libDirectory, "ext");
          libExtDirectory.mkdirs();
          libJUnitDirectory = new File(libDirectory, "junit");
          libJUnitDirectory.mkdirs();
          testFilesBuildDirectory.mkdirs();
          resultsDirectory.mkdirs();
          if (generateReports) {
              reportDirectory.mkdirs();
          }
          logsDirectory.mkdirs();
      }
docs: Generate the directory tree utilised by JMeter.