- sb.append("Install4j version: "
- + System.getProperty("sys.install4jVersion"));
- sb.append("\n");
- sb.append("Install4j template version: "
- + System.getProperty("installer_template_version"));
- sb.append("\n");
- sb.append(
- "Launcher version: " + System.getProperty("launcher_version"));
- sb.append("\n");
+ appendIfNotNull(sb, "Install4j version: ",
+ System.getProperty("sys.install4jVersion"), "\n", null);
+ appendIfNotNull(sb, "Install4j template version: ",
+ System.getProperty("installer_template_version"), "\n", null);
+ appendIfNotNull(sb, "Launcher version: ",
+ System.getProperty("launcher_version"), "\n", null);