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8210985: Update the default SSL session cache size to 20480

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Reviewed-by: jnimeh, mullan
This commit is contained in:
Xue-Lei Andrew Fan 2018-11-29 08:43:12 -08:00
parent c03797a5d0
commit 388e1ebbba
3 changed files with 129 additions and 21 deletions
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52
src/java.base/share/classes/javax/net/ssl/SSLSessionContext.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -87,10 +87,17 @@ public interface SSLSessionContext {
* A check for sessions exceeding the timeout is made immediately whenever
* the timeout limit is changed for this <code>SSLSessionContext</code>.
*
* @param seconds the new session timeout limit in seconds; zero means
* there is no limit.
* @apiNote Note that the JDK Implementation uses default values for both
* the session cache size and timeout. See
* {@code getSessionCacheSize} and {@code getSessionTimeout} for
* more information. Applications should consider their
* performance requirements and override the defaults if necessary.
*
* @param seconds the new session timeout limit in seconds; zero means
* there is no limit.
*
* @throws IllegalArgumentException if the timeout specified is {@code < 0}.
*
* @exception IllegalArgumentException if the timeout specified is {@code < 0}.
* @see #getSessionTimeout
*/
public void setSessionTimeout(int seconds)
@ -109,33 +116,50 @@ public interface SSLSessionContext {
* whenever the timeout limit is changed for this
* <code>SSLSessionContext</code>.
*
* @implNote The JDK implementation returns the session timeout as set by
* the {@code setSessionTimeout} method, or if not set, a default
* value of 86400 seconds (24 hours).
*
* @return the session timeout limit in seconds; zero means there is no
* limit.
* limit.
*
* @see #setSessionTimeout
*/
public int getSessionTimeout();
/**
* Sets the size of the cache used for storing
* <code>SSLSession</code> objects grouped under this
* <code>SSLSessionContext</code>.
* Sets the size of the cache used for storing <code>SSLSession</code>
* objects grouped under this <code>SSLSessionContext</code>.
*
* @apiNote Note that the JDK Implementation uses default values for both
* the session cache size and timeout. See
* {@code getSessionCacheSize} and {@code getSessionTimeout} for
* more information. Applications should consider their
* performance requirements and override the defaults if necessary.
*
* @param size the new session cache size limit; zero means there is no
* limit.
* @exception IllegalArgumentException if the specified size is {@code < 0}.
* limit.
*
* @throws IllegalArgumentException if the specified size is {@code < 0}.
*
* @see #getSessionCacheSize
*/
public void setSessionCacheSize(int size)
throws IllegalArgumentException;
/**
* Returns the size of the cache used for storing
* <code>SSLSession</code> objects grouped under this
* <code>SSLSessionContext</code>.
* Returns the size of the cache used for storing <code>SSLSession</code>
* objects grouped under this <code>SSLSessionContext</code>.
*
* @implNote The JDK implementation returns the cache size as set by
* the {@code setSessionCacheSize} method, or if not set, the
* value of the {@systemProperty javax.net.ssl.sessionCacheSize}
* system property. If neither is set, it returns a default
* value of 20480.
*
* @return size of the session cache; zero means there is no size limit.
*
* @see #setSessionCacheSize
*/
public int getSessionCacheSize();
}