Class JavaVersion

src/main/java/ysoserial/payloads/util/JavaVersion.java:7–43

@author mbechler

 * @author mbechler
 */
public class JavaVersion {


    public int major;
    public int minor;
    public int update;


    public static JavaVersion getLocalVersion() {
        String property = System.getProperties().getProperty("java.version");
        if (property == null) {
            return null;
        }
        JavaVersion v = new JavaVersion();
        String parts[] = property.split("\\.|_|-");
        int start = "1".equals(parts[0]) ? 1 : 0; // skip "1." prefix
        v.major = Integer.parseInt(parts[start + 0]);
        v.minor = Integer.parseInt(parts[start + 1]);
        v.update = Integer.parseInt(parts[start + 2]);
        return v;
    }

    public static boolean isAnnInvHUniversalMethodImpl() {
        JavaVersion v = JavaVersion.getLocalVersion();
        return v != null && (v.major < 8 || (v.major == 8 && v.update <= 71));
    }

    public static boolean isBadAttrValExcReadObj() {
        JavaVersion v = JavaVersion.getLocalVersion();
        return v != null && (v.major > 8 && v.update >= 76);
    }

    public static boolean isAtLeast(int major) {
        JavaVersion v = JavaVersion.getLocalVersion();
        return v != null && v.major >= major;
    }
}