Enum JRE



  • @API(status=STABLE,
         since="5.1")
    public enum JRE
    extends java.lang.Enum<JRE>
    Enumeration of Java Runtime Environment (JRE) versions.

    If the current JRE version cannot be detected — for example, if the java.version JVM system property is undefined — then none of the constants defined in this enum will be considered to be the current JRE version.

    Since:
    5.1
    See Also:
    EnabledOnJre, DisabledOnJre
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean isCurrentVersion​()  
      static JRE valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static JRE[] values​()
      Returns an array containing the constants of this enum type, in the order they are declared.
      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait
    • Enum Constant Detail

      • JAVA_8

        public static final JRE JAVA_8
        Java 8.
      • JAVA_9

        public static final JRE JAVA_9
        Java 9.
      • JAVA_10

        public static final JRE JAVA_10
        Java 10.
      • JAVA_11

        public static final JRE JAVA_11
        Java 11.
    • Method Detail

      • values

        public static JRE[] values​()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
        for (JRE c : JRE.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static JRE valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null
      • isCurrentVersion

        public boolean isCurrentVersion​()
        Returns:
        true if this JRE is known to be the Java Runtime Environment version for the currently executing JVM