Author: markt
Date: Wed Aug 31 09:29:41 2016
New Revision: 1758563
URL: http://svn.apache.org/viewvc?rev=1758563&view=rev
Log:
The latest Java 9 early access builds have fixed some more memory leaks.
Also disable protection that is fixed in Java 8 when running on Java 8
Modified:
tomcat/tc8.0.x/trunk/ (props changed)
tomcat/tc8.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
tomcat/tc8.0.x/trunk/webapps/docs/config/listeners.xml
Propchange: tomcat/tc8.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Aug 31 09:29:41 2016
@@ -1,2 +1,2 @@
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2923,1702971,1702984,1703024,1703040,1703044,1703049-1703050,1703143,1703146,1703151,1703160,1703164,1703167,1703174,1703192,1703287,1703290,1703358,1703408,1703486,1703509,1703523,1703542,1703545,1703554,1703584,1703673,1703676,1703678,1703680,1703763,1703784,1703821,1703842,1703849,1703851,1703853,1703856,1703860,1703865,1703890,1703948,1704149,1704151,1704251,1704278,1704289,1704302,1704305,1704307,1704318,1704331,1704647,1704658,1704689,1704702,1704706,1704711,1704730-1704733,1704735,1704739,1704741-1704742,1704744,1704786,1704867,1705231,1705630,1705635,1705639,1705647,1705650-1705652,1705842,1705848,1705865-1705866,1705942,1706017,1706744-1706745,1706853,1706915,1707052,1707088,1708500-1708501,1708504-1708505,1708570,1708649,1708687,1708745,1708957,1709120,1709266,1709295,1709375,1709663,1709895,1709960,1710070,1710134,1710341,1710346,1710441,1710445,1710489,1710517,1710523,1710571,1710577,1710632,1710676,1710689,1710753-1710754,1710779,1710924,1710930,1710933,1710945,1711006,
1711016,1711022,1711026,1712163,1712225,1712228,1712233,1712250,1712254,1712489,1712547-1712548,1712588,1712617,1712645,1712654,1712695,1712765-1712766,1712771,1712775,1712859,1712876,1712898,1712902,1712905,1712912,1712974,1713129,1713168,1713184,1713285,1713362,1713397,1713446,1713612,1713618,1713871,1713931,1713975,1713987,1713992,1713997,1714002,1714012,1714019,1714054,1714521,1714535,1714537,1715168,1715188,1715206,1715413,1715415,1715434,1715510-1715512,1715514-1715515,1715517-1715519,1715521,1715633,1715661,1715682,1715965,1716213-1716214,1716258,1716269,1716347,1716354,1716364,1716413,1716420,1716511,1716543,1716640,1716644,1716856,1716858,1716881-1716882,1716886,1716894,1717085,1717225,1717233,1717252,1717264,1717282,1717286,1717290,1717385,1717416,1717418,1717445,1717515,1717520,1717528,1717965,1717967-1717968,1717979,1718022,1718308,1718523,1718794,1718796,1718834,1718836-1718838,1719278,1719291,1719315,1719332,1719334,1719340,1719346,1719441,1719446,1719488,1719909-17199
10,1720200,1720234,1720394,1720439,1720445,1720448,1720462,1720506,1720652,1720654-1720655,1720711,1720752,1720769,1720776,1720804,1720815,1721303,1721307,1721311,1721314,1721447,1721528,1721539,1721812,1721817,1721830,1721860,1721866,1721881,1721887,1722205,1722292,1722399,1722453,1722455,1722522,1722526,1722532,1722548,1722574,1722583,1722585,1722799,1722807,1722824,1722828-1722829,1722831,1722859,1722902,1722905,1722923,1722939,1722945,1722996,1723068,1723127,1723155,1723250,1723316-1723318,1723368,1723371,1723375,1723377,1723380,1723410,1723414,1723437,1723484,1723486,1723493-1723494,1723500,1723552,1723554,1723683,1723707,1723736,1724012,1724232,1724252,1724325,1724427-1724428,1724433,1724673,1724788,1724863,1724900,1724997,1725113,1725126-1725127,1725150,1725165,1725183,1725199,1725202,1725204,1725207,1725263-1725264,1725266,1725278,1725282,1725405,1725599,1725601,1725635,1725646,1725649-1725652,1725694,1725696-1725697,1725816,1725851,1725906-1725907,1725910,1725914,1725920,17
25926,1726177,1726202,1726628,1726632,1726637,1726639,1726648,1726651,1726654,1726669,1726676,1726803,1726925-1726926,1726972-1726973,1726991,1727162,1727670,1727675,1727899,1727914,1727917,1728091,1728138,1728433,1728448,1728664,1728677,1729185,1729361,1729625,1729730,1730101-1730102,1730137,1730612,1730946-1730975,1731008,1731055,1731079,1731283,1731856,1731882,1731946-1731958,1731976-1731983,1732359,1732488,1732900-1733448,1733602,1733617-1733963,1733978,1734113,1734128,1734192,1734258,1734301,1734418-1734454,1734466-1734512,1734522,1734592,1734594,1734597,1735041,1735577,1736162,1736209,1736280,1736646,1736836,1737119,1737280,1737339,1737632,1737664,1737715,1737834,1737903,1737959,1738014-1738015,1738018,1738022,1738039,1738043,1738059-1738060,1738147,1738149,1738174-1738175,1738643,1738850,1738982,1738996,1739079-1739081,1739087,1739113,1739153,1739172,1739176,1739474,1739726,1739762,1739775,1739814,1739817-1739818,1739975,1740131,1740324,1740465,1740509,1740520,1740535,1740707
,1740803,1740810,1740980,1740991,1741015,1741147,1741173,1741181,1741190,1741202,1741208,1741213,1741221,1741225,1741232,1741409,1741677,1741892,1741896,1742071,1742090,1742093,1742101,1742105,1742111,1742146,1742166,1742181,1742184,1742187,1742246,1742248-1742251,1742263-1742264,1742268,1742276,1742369,1742448,1742919,1742975,1742984,1742986,1743117,1743124-1743125,1743134,1743425,1743554,1743679,1743696-1743697,1743700-1743701,1744058,1744064-1744065,1744125,1744194,1744229,1744270,1744323,1744432,1744684,1744697,1744705,1744760,1745227,1745337,1746306,1746427,1746473,1746620,1746649,1746724,1746939,1746989,1747536,1747924,1748001,1748547,1748629,1748715,1749287,1749328,1749665-1749666,1750015,1750056,1750899,1750975,1750995,1751061,1751097,1752212,1752737,1753078,1753080,1753358,1753363,1754111,1754140-1754141,1754281,1754310,1754445,1754467,1754494,1754496,1754528,1754532-1754533,1754613,1754714,1754874,1754941,1754944,1754950-1754951,1755214,1755224,1755230,1755646-1755647,1755
650,1755675,1755693,1755717,1755884,1755890,1755918-1755919,1755942,1756013,1756019,1756039,1756408,1756410,1756898,1756939,1757123-1757124,1757126,1757128,1757132-1757133,1757167-1757168,1757175,1757180,1757182,1757195,1757271,1757278,1757347,1757353-1757354,1757363,1757374,1757399,1757406,1757408,1757495,1757499,1757527,1757997,1758072-1758075,1758078-1758079,1758369,1758423,1758425-1758427,1758430,1758486-1758487,1758499,1758556
Modified:
tomcat/tc8.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java?rev=1758563&r1=1758562&r2=1758563&view=diff
==============================================================================
---
tomcat/tc8.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
(original)
+++
tomcat/tc8.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
Wed Aug 31 09:29:41 2016
@@ -37,6 +37,7 @@ import org.apache.catalina.LifecycleList
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.ExceptionUtils;
+import org.apache.tomcat.util.compat.JreCompat;
import org.apache.tomcat.util.compat.JreVendor;
import org.apache.tomcat.util.res.StringManager;
import org.w3c.dom.Document;
@@ -258,13 +259,13 @@ public class JreMemoryLeakPreventionList
// Trigger a call to sun.awt.AppContext.getAppContext(). This
// will pin the system class loader in memory but that
shouldn't
// be an issue.
- if (appContextProtection) {
+ if (appContextProtection && !JreCompat.isJre8Available()) {
ImageIO.getCacheDirectory();
}
// Trigger the creation of the AWT (AWT-Windows, AWT-XAWT,
// etc.) thread
- if (awtThreadProtection) {
+ if (awtThreadProtection && !JreCompat.isJre9Available()) {
java.awt.Toolkit.getDefaultToolkit();
}
@@ -281,7 +282,7 @@ public class JreMemoryLeakPreventionList
* to terminate
*
*/
- if (gcDaemonProtection) {
+ if (gcDaemonProtection && !JreCompat.isJre9Available()) {
try {
Class<?> clazz = Class.forName("sun.misc.GC");
Method method = clazz.getDeclaredMethod(
@@ -319,7 +320,7 @@ public class JreMemoryLeakPreventionList
* Calling getPolicy retains a static reference to the context
* class loader.
*/
- if (securityPolicyProtection) {
+ if (securityPolicyProtection && !JreCompat.isJre8Available()) {
try {
// Policy.getPolicy();
Class<?> policyClass = Class
@@ -352,7 +353,7 @@ public class JreMemoryLeakPreventionList
* Initializing javax.security.auth.login.Configuration
retains a static reference to the context
* class loader.
*/
- if (securityLoginConfigurationProtection) {
+ if (securityLoginConfigurationProtection &&
!JreCompat.isJre8Available()) {
try {
Class.forName("javax.security.auth.login.Configuration", true,
ClassLoader.getSystemClassLoader());
} catch(ClassNotFoundException e) {
@@ -367,8 +368,10 @@ public class JreMemoryLeakPreventionList
* to the web application class loader.
*
* Instead we initialize JCA right now.
+ *
+ * Fixed in Java 9 onwards (from early access build 133)
*/
- if (tokenPollerProtection) {
+ if (tokenPollerProtection && !JreCompat.isJre9Available()) {
java.security.Security.getProviders();
}
@@ -401,7 +404,10 @@ public class JreMemoryLeakPreventionList
}
}
- if (xmlParsingProtection) {
+ /*
+ * Fixed in Java 9 onwards (from early access build 133)
+ */
+ if (xmlParsingProtection && !JreCompat.isJre9Available()) {
// There are two known issues with XML parsing that affect
// Java 7+. The issues both relate to cached Exception
// instances that retain a link to the TCCL via the
@@ -427,7 +433,7 @@ public class JreMemoryLeakPreventionList
}
}
- if (ldapPoolProtection) {
+ if (ldapPoolProtection && !JreCompat.isJre9Available()) {
try {
Class.forName("com.sun.jndi.ldap.LdapPoolManager");
} catch (ClassNotFoundException e) {
Modified: tomcat/tc8.0.x/trunk/webapps/docs/config/listeners.xml
URL:
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/webapps/docs/config/listeners.xml?rev=1758563&r1=1758562&r2=1758563&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/webapps/docs/config/listeners.xml (original)
+++ tomcat/tc8.0.x/trunk/webapps/docs/config/listeners.xml Wed Aug 31 09:29:41
2016
@@ -170,6 +170,8 @@
application do not result in a memory leak. Note that enabling this
protection will trigger a requirement for a graphical environment
unless
Java is started in head-less mode. The default is <code>false</code>.
+ This protection is disabled if running on Java 8 onwards since the leak
+ has been fixed for Java 8 onwards.
</p>
</attribute>
@@ -177,7 +179,9 @@
<p>Enables protection so that calls to
<code>java.awt.Toolkit.getDefaultToolkit()</code> triggered by a web
application do not result in a memory leak.
- Defaults to <code>false</code> because an AWT thread is launched.</p>
+ Defaults to <code>false</code> because an AWT thread is launched. This
+ protection is disabled if running on Java 9 onwards since the leak has
+ been fixed for Java 9 onwards.</p>
</attribute>
<attribute name="classesToInitialize" required="false">
@@ -205,7 +209,9 @@
trigger a call to this method. A side effect of enabling this
protection
is the creation of a thread named "GC Daemon". The protection uses
reflection to access internal Sun classes and may generate errors on
- startup on non-Sun JVMs. The default is <code>true</code>.</p>
+ startup on non-Sun JVMs. The default is <code>true</code>. This
+ protection is disabled if running on Java 9 onwards since the leak has
+ been fixed for Java 9 onwards.</p>
</attribute>
<attribute name="ldapPoolProtection" required="false">
@@ -218,7 +224,8 @@
class the PoolCleaner thread will be configured with the thread's
context class loader set to the web application class loader which in
turn will trigger a memory leak on reload. Defaults to
- <code>true</code>.</p>
+ <code>true</code>. This protection is disabled if running on Java 9
+ onwards since the leak has been fixed for Java 9 onwards.</p>
</attribute>
<attribute name="securityLoginConfigurationProtection" required="false">
@@ -228,7 +235,9 @@
class will trigger the initializer that will retain a static reference
to the context class loader. The protection loads the class with the
system class loader to ensure that the static initializer is not
- triggered by a web application. Defaults to <code>true</code>.</p>
+ triggered by a web application. Defaults to <code>true</code>. This
+ protection is disabled if running on Java 8 onwards since the leak has
+ been fixed for Java 8 onwards.</p>
</attribute>
<attribute name="securityPolicyProtection" required="false">
@@ -240,8 +249,8 @@
of this class to ensure that the static initializer is not triggered by
a web application. Defaults to <code>true</code>.</p>
<p>Note: The underlying leak has been fixed in Java 7 update 51 onwards
- and Java 8 onwards. This option is unnecessary if running on a fixed
- version of Java.</p>
+ and Java 8 onwards. This protection is therefor disabled if running on
+ Java 8 onwards.</p>
</attribute>
<attribute name="tokenPollerProtection" required="false">
@@ -253,7 +262,9 @@
deployment when the MessageDigest for generating session IDs is
initialized. As a result the thread has the Webapp class loader as its
thread context class loader. Enabling the protection initializes JCA
- early during Tomcat startup. Defaults to <code>true</code>.</p>
+ early during Tomcat startup. Defaults to <code>true</code>. This
+ protection is disabled if running on Java 9 onwards since the leak has
+ been fixed for Java 9 onwards.</p>
</attribute>
<attribute name="urlCacheProtection" required="false">
@@ -269,7 +280,9 @@
<p>Enables protection so that parsing XML files within a web
application
does not result in a memory leak. Note that memory profilers may not
display the GC root associated with this leak making it particularly
- hard to diagnose. Defaults to <code>true</code>.</p>
+ hard to diagnose. Defaults to <code>true</code>. This protection is
+ disabled if running on Java 9 onwards since the leak has been fixed for
+ Java 9 onwards.</p>
</attribute>
</attributes>
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