#vulnerable code 
                              public static synchronized RunTime get(Type typ, String[] clArgs) {
    if (runTime == null) {
      runTime = new RunTime();

      if (null != clArgs) {
        int debugLevel = checkArgs(clArgs, typ);
        if (Type.IDE.equals(typ)) {
          if(debugLevel == -1) {
            Debug.on(3);
            Debug.log(3, "RunTime: option -d detected --- log goes to SikulixLog.txt");
            Debug.setLogFile("");
            Settings.LogTime = true;
            System.setProperty("sikuli.console", "false");
          } else if (debugLevel == 999) {
            runTime.runningScripts = true;
          }
        }
      }
      if (Type.API.equals(typ)) {
        Debug.init();
      }

//<editor-fold defaultstate="collapsed" desc="versions">
      String vJava = System.getProperty("java.runtime.version");
      String vVM = System.getProperty("java.vm.version");
      String vClass = System.getProperty("java.class.version");
      String vSysArch = System.getProperty("os.arch");
      if (vSysArch.contains("64")) {
        runTime.javaArch = 64;
      }
      try {
        runTime.javaVersion = Integer.parseInt(vJava.substring(2, 3));
        runTime.javaShow = String.format("java %d-%d version %s vm %s class %s arch %s",
                runTime.javaVersion, runTime.javaArch, vJava, vVM, vClass, vSysArch);
      } catch (Exception ex) {
        runTime.log(-1, "Java version not detected (using 7): %s", vJava);
        runTime.javaVersion = 7;
        runTime.javaShow = String.format("java ?7?-%d version %s vm %s class %s arch %s",
                runTime.javaArch, vJava, vVM, vClass, vSysArch);
      }

      if (Debug.getDebugLevel() > runTime.minLvl) {
        runTime.dumpSysProps();
      }

      runTime.osVersion = runTime.osVersionSysProp;
      String os = runTime.osNameSysProp.toLowerCase();
      if (os.startsWith("windows")) {
        runTime.runningOn = theSystem.WIN;
        runTime.sysName = "windows";
        runTime.osName = "Windows";
        runTime.runningWindows = true;
      } else if (os.startsWith("mac")) {
        runTime.runningOn = theSystem.MAC;
        runTime.sysName = "mac";
        runTime.osName = "Mac OSX";
        runTime.runningMac = true;
      } else if (os.startsWith("linux")) {
        runTime.runningOn = theSystem.LUX;
        runTime.sysName = "linux";
        runTime.osName = "Linux";
        runTime.runningLinux = true;
      } else {
        runTime.terminate(-1, "running on not supported System: %s (%s)", os, runTime.osVersion);
      }
//</editor-fold>

      debugLevelSaved = Debug.getDebugLevel();
      debugLogfileSaved = Debug.logfile;

      String aFolder = System.getProperty("user.home");
      if (aFolder == null || aFolder.isEmpty() || !(runTime.fUserDir = new File(aFolder)).exists()) {
        runTime.terminate(-1, "JavaSystemProperty::user.home not valid");
      }

      aFolder = System.getProperty("user.dir");
      if (aFolder == null || aFolder.isEmpty() || !(runTime.fWorkDir = new File(aFolder)).exists()) {
        runTime.terminate(-1, "JavaSystemProperty::user.dir not valid");
      }

      File fDebug = new File(runTime.fUserDir, "SikulixDebug.txt");
      if (fDebug.exists()) {
        if (Debug.getDebugLevel() == 0) {
          Debug.setDebugLevel(3);
        }
        Debug.setLogFile(fDebug.getAbsolutePath());
        if (Type.IDE.equals(typ)) {
          System.setProperty("sikuli.console", "false");
        }
        runTime.logp("auto-debugging with level %d into:\n%s", Debug.getDebugLevel(), fDebug);
      }

      runTime.fTestFolder = new File(runTime.fUserDir, "SikulixTest");
      runTime.fTestFile = new File(runTime.fTestFolder, "SikulixTest.txt");

      runTime.loadOptions(typ);
      int dl = runTime.getOptionNumber("debug.level");
      if (dl > 0 && Debug.getDebugLevel() < 2) {
        Debug.setDebugLevel(dl);
      }
      if (Debug.getDebugLevel() > 1) {
        runTime.dumpOptions();
      }

      if (Type.SETUP.equals(typ)) {
        Debug.setDebugLevel(3);
      }

      Settings.init(); // force Settings initialization
      runTime.initSikulixOptions();

      runTime.init(typ);
      if (Type.IDE.equals(typ)) {
        runTime.initIDEbefore();
        runTime.initAPI();
        runTime.initIDEafter();
      } else {
        runTime.initAPI();
        if (Type.SETUP.equals(typ)) {
          runTime.initSetup();
        }
      }
    }
    if (testingWinApp && !runTime.runningWindows) {
      runTime.terminate(1, "***** for testing winapp: not running on Windows");
    }
    return runTime;
  } 
                            #location 28 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                              public static synchronized RunTime get(Type typ, String[] clArgs) {
    if (runTime == null) {
      runTime = new RunTime();

      if (null != clArgs) {
        int debugLevel = checkArgs(clArgs, typ);
        if (Type.IDE.equals(typ)) {
          if(debugLevel == -1) {
            Debug.on(3);
            Debug.log(3, "RunTime: option -d detected --- log goes to SikulixLog.txt");
            Debug.setLogFile("");
            Settings.LogTime = true;
            System.setProperty("sikuli.console", "false");
          } else if (debugLevel == 999) {
            runTime.runningScripts = true;
          }
        }
      }
      if (Type.API.equals(typ)) {
        Debug.init();
      }

//<editor-fold defaultstate="collapsed" desc="versions">
      String vJava = System.getProperty("java.runtime.version");
      String vVM = System.getProperty("java.vm.version");
      String vClass = System.getProperty("java.class.version");
      String vSysArch = System.getProperty("sikuli.arch");
      if (null != vSysArch) {
        vSysArch = System.getProperty("os.arch");
      }      
      if (vSysArch != null && vSysArch.contains("32")) {
        runTime.javaArch = 32;
      }
      try {
        runTime.javaVersion = Integer.parseInt(vJava.substring(2, 3));
        runTime.javaShow = String.format("java %d-%d version %s vm %s class %s arch %s",
                runTime.javaVersion, runTime.javaArch, vJava, vVM, vClass, vSysArch);
      } catch (Exception ex) {
        runTime.log(-1, "Java version not detected (using 7): %s", vJava);
        runTime.javaVersion = 7;
        runTime.javaShow = String.format("java ?7?-%d version %s vm %s class %s arch %s",
                runTime.javaArch, vJava, vVM, vClass, vSysArch);
        runTime.logp(runTime.javaShow);
        runTime.dumpSysProps();
      }

      if (Debug.getDebugLevel() > runTime.minLvl) {
        runTime.dumpSysProps();
      }

      runTime.osVersion = runTime.osVersionSysProp;
      String os = runTime.osNameSysProp.toLowerCase();
      if (os.startsWith("windows")) {
        runTime.runningOn = theSystem.WIN;
        runTime.sysName = "windows";
        runTime.osName = "Windows";
        runTime.runningWindows = true;
      } else if (os.startsWith("mac")) {
        runTime.runningOn = theSystem.MAC;
        runTime.sysName = "mac";
        runTime.osName = "Mac OSX";
        runTime.runningMac = true;
      } else if (os.startsWith("linux")) {
        runTime.runningOn = theSystem.LUX;
        runTime.sysName = "linux";
        runTime.osName = "Linux";
        runTime.runningLinux = true;
      } else {
        runTime.terminate(-1, "running on not supported System: %s (%s)", os, runTime.osVersion);
      }
//</editor-fold>

      debugLevelSaved = Debug.getDebugLevel();
      debugLogfileSaved = Debug.logfile;

      String aFolder = System.getProperty("user.home");
      if (aFolder == null || aFolder.isEmpty() || !(runTime.fUserDir = new File(aFolder)).exists()) {
        runTime.terminate(-1, "JavaSystemProperty::user.home not valid");
      }

      aFolder = System.getProperty("user.dir");
      if (aFolder == null || aFolder.isEmpty() || !(runTime.fWorkDir = new File(aFolder)).exists()) {
        runTime.terminate(-1, "JavaSystemProperty::user.dir not valid");
      }

      File fDebug = new File(runTime.fUserDir, "SikulixDebug.txt");
      if (fDebug.exists()) {
        if (Debug.getDebugLevel() == 0) {
          Debug.setDebugLevel(3);
        }
        Debug.setLogFile(fDebug.getAbsolutePath());
        if (Type.IDE.equals(typ)) {
          System.setProperty("sikuli.console", "false");
        }
        runTime.logp("auto-debugging with level %d into:\n%s", Debug.getDebugLevel(), fDebug);
      }

      runTime.fTestFolder = new File(runTime.fUserDir, "SikulixTest");
      runTime.fTestFile = new File(runTime.fTestFolder, "SikulixTest.txt");

      runTime.loadOptions(typ);
      int dl = runTime.getOptionNumber("debug.level");
      if (dl > 0 && Debug.getDebugLevel() < 2) {
        Debug.setDebugLevel(dl);
      }
      if (Debug.getDebugLevel() > 1) {
        runTime.dumpOptions();
      }

      if (Type.SETUP.equals(typ)) {
        Debug.setDebugLevel(3);
      }

      Settings.init(); // force Settings initialization
      runTime.initSikulixOptions();

      runTime.init(typ);
      if (Type.IDE.equals(typ)) {
        runTime.initIDEbefore();
        runTime.initAPI();
        runTime.initIDEafter();
      } else {
        runTime.initAPI();
        if (Type.SETUP.equals(typ)) {
          runTime.initSetup();
        }
      }
    }
    if (testingWinApp && !runTime.runningWindows) {
      runTime.terminate(1, "***** for testing winapp: not running on Windows");
    }
    return runTime;
  }