public class JreCompat
extends java.lang.Object
Constructor and Description |
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JreCompat() |
Modifier and Type | Method and Description |
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void |
addBootModulePath(java.util.Deque<java.net.URL> classPathUrlsToProcess)
Obtains the URLs for all the JARs on the module path when the JVM starts
and adds them to the provided Deque.
|
void |
disableCachingForJarUrlConnections()
Disables caching for JAR URL connections.
|
java.lang.String |
getApplicationProtocol(javax.net.ssl.SSLEngine sslEngine)
Get the application protocol that has been negotiated for connection
associated with the given SSLEngine.
|
static JreCompat |
getInstance() |
boolean |
isInstanceOfInaccessibleObjectException(java.lang.Throwable t)
Test if the provided exception is an instance of
java.lang.reflect.InaccessibleObjectException.
|
static boolean |
isJre9Available() |
boolean |
jarFileIsMultiRelease(java.util.jar.JarFile jarFile)
Is this JarFile a multi-release JAR file.
|
java.util.jar.JarFile |
jarFileNewInstance(java.io.File f)
Creates a new JarFile instance.
|
java.util.jar.JarFile |
jarFileNewInstance(java.lang.String s)
Creates a new JarFile instance.
|
int |
jarFileRuntimeMajorVersion() |
void |
setApplicationProtocols(javax.net.ssl.SSLParameters sslParameters,
java.lang.String[] protocols)
Set the application protocols the server will accept for ALPN
|
public static JreCompat getInstance()
public static boolean isJre9Available()
public boolean isInstanceOfInaccessibleObjectException(java.lang.Throwable t)
t
- The exception to testtrue
if the exception is an instance of
InaccessibleObjectException, otherwise false
public void setApplicationProtocols(javax.net.ssl.SSLParameters sslParameters, java.lang.String[] protocols)
sslParameters
- The SSL parameters for a connectionprotocols
- The application protocols to be allowed for that
connectionpublic java.lang.String getApplicationProtocol(javax.net.ssl.SSLEngine sslEngine)
sslEngine
- The SSLEngine for which to obtain the negotiated
protocolpublic void disableCachingForJarUrlConnections() throws java.io.IOException
java.io.IOException
- If a dummy JAR URLConnection can not be createdpublic void addBootModulePath(java.util.Deque<java.net.URL> classPathUrlsToProcess)
classPathUrlsToProcess
- The Deque to which the modules should be
addedpublic final java.util.jar.JarFile jarFileNewInstance(java.lang.String s) throws java.io.IOException
s
- The JAR file to openjava.io.IOException
- If an I/O error occurs creating the JarFile instancepublic java.util.jar.JarFile jarFileNewInstance(java.io.File f) throws java.io.IOException
f
- The JAR file to openjava.io.IOException
- If an I/O error occurs creating the JarFile instancepublic boolean jarFileIsMultiRelease(java.util.jar.JarFile jarFile)
jarFile
- The JarFile to testtrue
If it is a multi-release JAR file and is configured
to behave as such.public int jarFileRuntimeMajorVersion()
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