Package org.springframework.boot.system

Enum Class JavaVersion

java.lang.Object

java.lang.Enum<JavaVersion>

org.springframework.boot.system.JavaVersion

All Implemented Interfaces:

Serializable, Comparable<JavaVersion>, Constable

public enum JavaVersion
extends Enum<JavaVersion>

Known Java versions.

Since:

2.0.0

Author:

Oliver Gierke, Phillip Webb, Moritz Halbritter

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EIGHTEEN	Java 18.
NINETEEN	Java 19.
SEVENTEEN	Java 17.
TWENTY	Java 20.
TWENTY_ONE	Java 21.

Method Summary

Modifier and Type	Method	Description
static JavaVersion	getJavaVersion()	Returns the JavaVersion of the current runtime.
boolean	isEqualOrNewerThan(JavaVersion version)	Return if this version is equal to or newer than a given version.
boolean	isOlderThan(JavaVersion version)	Return if this version is older than a given version.
String	toString()
static JavaVersion	valueOf(String name)	Returns the enum constant of this class with the specified name.
static JavaVersion[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

SEVENTEEN

public static final JavaVersion SEVENTEEN

Java 17.

Since:

2.5.3

EIGHTEEN

public static final JavaVersion EIGHTEEN

Java 18.

Since:

2.5.11

NINETEEN

public static final JavaVersion NINETEEN

Java 19.

Since:

2.6.12

TWENTY

public static final JavaVersion TWENTY

Java 20.

Since:

2.7.13

TWENTY_ONE

public static final JavaVersion TWENTY_ONE

Java 21.

Since:

2.7.16

Method Details

values

public static JavaVersion[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static JavaVersion valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

toString

public String toString()

Overrides:

toString in class Enum<JavaVersion>

getJavaVersion

public static JavaVersion getJavaVersion()

Returns the JavaVersion of the current runtime.

Returns:

the JavaVersion

isEqualOrNewerThan

public boolean isEqualOrNewerThan(JavaVersion version)

Return if this version is equal to or newer than a given version.

Parameters:

version - the version to compare

Returns:

true if this version is equal to or newer than version

isOlderThan

public boolean isOlderThan(JavaVersion version)

Return if this version is older than a given version.

Parameters:

version - the version to compare

Returns:

true if this version is older than version