code: private void fillFields() {
  
          String folderName = getModuleFolder(m_module.getName());
          if (folderName != null) {
              if (CmsStringUtil.isEmptyOrWhitespaceOnly(m_parentFormatter.getValue())) {
                  m_parentFormatter.setValue(folderName + FORMATTER);
              }
              if (CmsStringUtil.isEmptyOrWhitespaceOnly(m_parentSchema.getValue())) {
                  m_parentSchema.setValue(folderName + SCHEMA);
              }
          }
          if (m_cms.existsResource(folderName + CmsEditModuleForm.CONFIG_FILE)) {
              m_config.setValue(folderName + CmsEditModuleForm.CONFIG_FILE);
          }
          m_parentFormatter.removeAllValidators();
          m_parentSchema.removeAllValidators();
          m_config.removeAllValidators();
          m_config.addValidator(new ResourceValidator());
          m_bundle.addValidator(new BundleValidator());
          m_parentFormatter.addValidator(new ResourceValidator());
          m_parentSchema.addValidator(new ResourceValidator());
          CmsResource bundle = getMessageBundle();
          if (bundle != null) {
              m_bundle.setValue(bundle.getRootPath());
  
          }
      }
docs: Fills the fields.<p>