Constructor Detail

• JreCompat

  public JreCompat()

Method Detail

• getInstance

  public static JreCompat getInstance()

• isJre8Available

  public static boolean isJre8Available()

• setUseServerCipherSuitesOrder

  public void setUseServerCipherSuitesOrder(SSLParameters engine,
                                   boolean useCipherSuitesOrder)

• getDomainLoadStoreParameter

  public KeyStore.LoadStoreParameter getDomainLoadStoreParameter(URI uri)

• isAlpnSupported

  public static boolean isAlpnSupported()

• isJre9Available

  public static boolean isJre9Available()

• isInstanceOfInaccessibleObjectException

  public boolean isInstanceOfInaccessibleObjectException(Throwable t)

  Test if the provided exception is an instance of java.lang.reflect.InaccessibleObjectException.

  Parameters:

  t - The exception to test

  Returns:

  true if the exception is an instance of InaccessibleObjectException, otherwise false

• setApplicationProtocols

  public void setApplicationProtocols(SSLParameters sslParameters,
                             String[] protocols)

  Set the application protocols the server will accept for ALPN

  Parameters:

  sslParameters - The SSL parameters for a connection

  protocols - The application protocols to be allowed for that connection

• getApplicationProtocol

  public String getApplicationProtocol(SSLEngine sslEngine)

  Get the application protocol that has been negotiated for connection associated with the given SSLEngine.

  Parameters:

  sslEngine - The SSLEngine for which to obtain the negotiated protocol

  Returns:

  The name of the negotiated protocol

• disableCachingForJarUrlConnections

  public void disableCachingForJarUrlConnections()
                                          throws IOException

  Disables caching for JAR URL connections. For Java 8 and earlier, this also disables caching for ALL URL connections.

  Throws:

  IOException - If a dummy JAR URLConnection can not be created

• addBootModulePath

  public void addBootModulePath(Deque<URL> classPathUrlsToProcess)

  Obtains the URLs for all the JARs on the module path when the JVM starts and adds them to the provided Deque.

  Parameters:

  classPathUrlsToProcess - The Deque to which the modules should be added

• jarFileNewInstance

  public final JarFile jarFileNewInstance(String s)
                                   throws IOException

  Creates a new JarFile instance. When running on Java 9 and later, the JarFile will be multi-release JAR aware. While this isn't strictly required to be in this package, it is provided as a convenience method.

  Parameters:

  s - The JAR file to open

  Returns:

  A JarFile instance based on the provided path

  Throws:

  IOException - If an I/O error occurs creating the JarFile instance

• jarFileNewInstance

  public JarFile jarFileNewInstance(File f)
                             throws IOException

  Creates a new JarFile instance. When running on Java 9 and later, the JarFile will be multi-release JAR aware.

  Parameters:

  f - The JAR file to open

  Returns:

  A JarFile instance based on the provided file

  Throws:

  IOException - If an I/O error occurs creating the JarFile instance

• jarFileIsMultiRelease

  public boolean jarFileIsMultiRelease(JarFile jarFile)

  Is this JarFile a multi-release JAR file.

  Parameters:

  jarFile - The JarFile to test

  Returns:

  true If it is a multi-release JAR file and is configured to behave as such.

• jarFileRuntimeMajorVersion

  public int jarFileRuntimeMajorVersion()

• canAccess

  public boolean canAccess(Object base,
                  AccessibleObject accessibleObject)

  Is the accessibleObject accessible (as a result of appropriate module exports) on the provided instance?

  Parameters:

  base - The specific instance to be tested.

  accessibleObject - The method/field/constructor to be tested.

  Returns:

  {code true} if the AccessibleObject can be accessed otherwise {code false}

• isExported

  public boolean isExported(Class<?> type)

  Is the given class in an exported package?

  Parameters:

  type - The class to test

  Returns:

  Always true for Java 8. true if the enclosing package is exported for Java 9+

• getModuleName

  public String getModuleName(Class<?> type)

  What is the module of the given class?

  Parameters:

  type - The class to test

  Returns:

  Always true for Java 8. true if the enclosing package is exported for Java 9+