Package com.sun.enterprise.util

Class JDK

java.lang.Object

com.sun.enterprise.util.JDK

public final class JDK
extends Object

A simple class that fills a hole in the JDK. It parses out the version numbers of the JDK we are running. Example:

1.6.0_u14 == major = 1 minor = 6, subminor = 0, update = 14

Author:

bnevins

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JDK.Version

Constructor Summary

Constructors

Constructor	Description
JDK()

Method Summary

Modifier and Type	Method	Description
static int	getMajor()
static int	getMinor()
static int	getSubMinor()
static int	getUpdate()
static String	getVendor()
static JDK.Version	getVersion()
static JDK.Version	getVersion(String string)
static String	getVm()
static boolean	isCorrectJDK(Optional<JDK.Version> minVersion, Optional<JDK.Version> maxVersion)
static boolean	isCorrectJDK(Optional<JDK.Version> reference, Optional<JDK.Version> minVersion, Optional<JDK.Version> maxVersion)
static boolean	isCorrectJDK(Optional<JDK.Version> reference, Optional<String> vendorOrVM, Optional<JDK.Version> minVersion, Optional<JDK.Version> maxVersion)	Check if the reference version falls between the minVersion and maxVersion.
static boolean	isRunningLTSJDK()	See if the current JDK is an LTS version
static boolean	ok()	See if the current JDK is legal for running GlassFish
static String	toStringStatic()	No instances are allowed so it is pointless to override toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JDK

public JDK()

Method Detail

isRunningLTSJDK

public static boolean isRunningLTSJDK()

See if the current JDK is an LTS version

Returns:

true if JDK is an LTS version (8, 11, 17, 21, 25, 29...)

ok

public static boolean ok()

See if the current JDK is legal for running GlassFish

Returns:

true if the JDK is >= 11

getMajor

public static int getMajor()

getMinor

public static int getMinor()

getSubMinor

public static int getSubMinor()

getUpdate

public static int getUpdate()

getVendor

public static String getVendor()

getVm

public static String getVm()

getVersion

public static JDK.Version getVersion(String string)

getVersion

public static JDK.Version getVersion()

isCorrectJDK

public static boolean isCorrectJDK(Optional<JDK.Version> minVersion,
                                   Optional<JDK.Version> maxVersion)

isCorrectJDK

public static boolean isCorrectJDK(Optional<JDK.Version> reference,
                                   Optional<JDK.Version> minVersion,
                                   Optional<JDK.Version> maxVersion)

isCorrectJDK

public static boolean isCorrectJDK(Optional<JDK.Version> reference,
                                   Optional<String> vendorOrVM,
                                   Optional<JDK.Version> minVersion,
                                   Optional<JDK.Version> maxVersion)

Check if the reference version falls between the minVersion and maxVersion.

Parameters:

reference - The version to compare; falls back to the current JDK version if empty.

vendorOrVM - The inclusive JDK vendor or VM name.

minVersion - The inclusive minimum version.

maxVersion - The inclusive maximum version.

Returns:

true if within the version range, false otherwise

toStringStatic

public static String toStringStatic()

No instances are allowed so it is pointless to override toString

Returns:

Parsed version numbers