src/main/java/net/wasdev/wlp/common/plugins/util/InstallFeatureUtil.java
public static File getMapBasedInstallKernelJar(File dir) {

        File[] installMapJars = dir.listFiles(new FilenameFilter() {
            @Override
            public boolean accept(File dir, String name) {
                return name.startsWith(INSTALL_MAP_PREFIX) && name.endsWith(INSTALL_MAP_SUFFIX);
            }
        });

        File result = null;
        if (installMapJars != null) {
            for (File jar : installMapJars) {
                if (isReplacementJar(result, jar)) {
                    result = jar;
                }
            }
        }

        return result;
    }
public static File getMapBasedInstallKernelJar(File dir) {

        File[] installMapJars = dir.listFiles(new FilenameFilter() {
            @Override
            public boolean accept(File dir, String name) {
                return name.startsWith(INSTALL_MAP_PREFIX) && name.endsWith(INSTALL_MAP_SUFFIX);
            }
        });

        File result = null;
        if (installMapJars != null) {
            for (File jar : installMapJars) {
                if (isReplacementJar(result, jar)) {
                    result = jar;
                }
            }
        }

        return result;
    }
Find latest install map jar from specified directory

@return the install map jar file