#fixed code
                                public static String getArchName() {
        String osArch = System.getProperty("os.arch");
        if(osArch.startsWith("arm")) {
            osArch = resolveArmArchType();
        }
        else {
            String lc = osArch.toLowerCase(Locale.US);
            if(archMapping.containsKey(lc))
                return archMapping.get(lc);
        }
        return translateArchNameToFolderName(osArch);
    }
#vulnerable code 
                                public static String getArchName() {
        String osArch = System.getProperty("os.arch");
        if(osArch.startsWith("arm")) {
            // Java 1.8 introduces a system property to determine armel or armhf
            if(System.getProperty("sun.arch.abi") != null && System.getProperty("sun.arch.abi").startsWith("gnueabihf")) {
                return translateArchNameToFolderName("armhf");
            }
            // For java7, we stil need to if run some shell commands to determine ABI of JVM
            if(System.getProperty("os.name").contains("Linux")) {
                String javaHome = System.getProperty("java.home");
                try {
                    // determine if first JVM found uses ARM hard-float ABI
                    int exitCode = Runtime.getRuntime().exec("which readelf").waitFor();
                    if(exitCode == 0) {
                        String[] cmdarray = {"/bin/sh", "-c", "find '" + javaHome +
                                "' -name 'libjvm.so' | head -1 | xargs readelf -A | " +
                                "grep 'Tag_ABI_VFP_args: VFP registers'"};
                        exitCode = Runtime.getRuntime().exec(cmdarray).waitFor();
                        if (exitCode == 0) {
                            return translateArchNameToFolderName("armhf");
                        }
                    } else {
                        System.err.println("WARNING! readelf not found. Cannot check if running on an armhf system, " +
                                "armel architecture will be presumed.");
                    }
                }
                catch(IOException e) {
                    // ignored: fall back to "arm" arch (soft-float ABI)
                }
                catch(InterruptedException e) {
                    // ignored: fall back to "arm" arch (soft-float ABI)
                }
            }
        }
        else {
            String lc = osArch.toLowerCase(Locale.US);
            if(archMapping.containsKey(lc))
                return archMapping.get(lc);
        }
        return translateArchNameToFolderName(osArch);
    } 
                            #location 5 
                            #vulnerability type NULL_DEREFERENCE