VersionUtils

java.lang.Object

org.openjdk.jmc.agent.util.VersionUtils

public final class VersionUtils extends Object

Nested Class Summary

Nested Classes

Modifier and Type

Class

Description

static enum

VersionUtils.JFRVersion
Field Summary

Fields

Modifier and Type

Field

Description

private static final VersionUtils.JFRVersion

AVAILABLE_JFR_VERSION

private static final int

FEATURE_VERSION
Constructor Summary

Constructors

Modifier

Constructor

Description

private

VersionUtils()
Method Summary

Modifier and Type

Method

Description

private static int

determineFeatureVersion()

private static VersionUtils.JFRVersion

determineJFRVersion()

static VersionUtils.JFRVersion

getAvailableJFRVersion()

Returns the current JVM's JFR version.

static OptionalInt

getFeatureVersion()

Returns the current JVM's feature (major) version, e.g.

private static Method

getMethod(Class<?> clazz, String methodName)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- AVAILABLE_JFR_VERSION
  
  private static final VersionUtils.JFRVersion AVAILABLE_JFR_VERSION
- FEATURE_VERSION
  
  private static final int FEATURE_VERSION
Constructor Details
- VersionUtils
  
  private VersionUtils()
Method Details
- determineJFRVersion
  
  private static VersionUtils.JFRVersion determineJFRVersion()
- getAvailableJFRVersion
  
  public static VersionUtils.JFRVersion getAvailableJFRVersion()
  
  Returns the current JVM's JFR version.
- getFeatureVersion
  
  public static OptionalInt getFeatureVersion()
  
  Returns the current JVM's feature (major) version, e.g. 8, 11, or 15.
- determineFeatureVersion
  
  private static int determineFeatureVersion()
- getMethod
  
  private static Method getMethod(Class<?> clazz, String methodName) throws Exception
  
  Throws:
  
  Exception