Author: markt
Date: Sat Jan  8 19:24:00 2011
New Revision: 1056773

URL: http://svn.apache.org/viewvc?rev=1056773&view=rev
Log:
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50282
Improve JreMemoryLeakPreventionListener to load  
javax.security.auth.login.Configuration to avoid redeployment leak.

Modified:
    tomcat/tc6.0.x/trunk/   (props changed)
    tomcat/tc6.0.x/trunk/STATUS.txt
    
tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
    tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
    tomcat/tc6.0.x/trunk/webapps/docs/config/listeners.xml

Propchange: tomcat/tc6.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Sat Jan  8 19:24:00 2011
@@ -1 +1 @@
-/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
 
0809,770876,772872,776921,776924,776935,776945,777464,777466,777576,777625,778379,778523-778524,781528,781779,782145,782791,783316,783696,783724,783756,783762,783766,783863,783934,784453,784602,784614,785381,785688,785768,785859,786468,786487,786490,786496,786667,787627,787770,787985,789389,790405,791041,791184,791194,791224,791243,791326,791328,791789,792740,793372,793757,793882,793981,794082,794673,794822,795043,795152,795210,795457,795466,797168,797425,797596,797607,802727,802940,804462,804544,804734,805153,809131,809603,810916,810977,812125,812137,812432,813001,813013,813866,814180,814708,814876,815972,816252,817442,817822,819339,819361,820110,820132,820874,820954,821397,828196,828201,828210,828225,828759,830378-830379,830999,831106,831774,831785,831828,831850,831860,832214,832218,833121,833545,834047,835036,835336,836405,881396,881412,883130,883134,883146,883165,883177,883362,883565,884341,885038,885231,885241,885260,885901,885991,886019,888072,889363,889606,889716,8901
 
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+/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
 
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39,890265,890349-890350,890417,891185-891187,891583,892198,892341,892415,892464,892555,892812,892814,892817,892843,892887,893321,893493,894580,894586,894805,894831,895013,895045,895057,895191,895392,895703,896370,896384,897380-897381,897776,898126,898256,898468,898527,898555,898558,898718,898836,898906,899284,899348,899420,899653,899769-899770,899783,899788,899792,899916,899918-899919,899935,899949,903916,905020,905151,905722,905728,905735,907311,907513,907538,907652,907819,907825,907864,908002,908721,908754,908759,909097,909206,909212,909525,909636,909869,909875,909887,910266,910370,910442,910471,910485,910974,915226,915737,915861,916097,916141,916157,916170,917598,917633,918093,918489,918594,918684,918787,918792,918799,918803,918885,919851,919914,920025,920055,920298,920449,920596,920824,920840,921444,922010,926716,927062,927621,928482,928695,928732,928798,931709,932357,932967,935105,935983,939491,939551,940064,941356,941463,944409,944416,945231,945808,945835,945841,946686
 
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Modified: tomcat/tc6.0.x/trunk/STATUS.txt
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/STATUS.txt?rev=1056773&r1=1056772&r2=1056773&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/STATUS.txt (original)
+++ tomcat/tc6.0.x/trunk/STATUS.txt Sat Jan  8 19:24:00 2011
@@ -102,27 +102,6 @@ PATCHES PROPOSED TO BACKPORT:
   -0: markt - Patch doesn't apply cleanly to tc6.0.x/trunk
   -1:
 
-* Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50282
-  Improve JreMemoryLeakPreventionListener to load 
-  javax.security.auth.login.Configuration to avoid redeployment leak.
-  http://svn.apache.org/viewvc?rev=1042029&view=rev
-  +1: slaurent, kkolinko, funkman
-  -0: markt - See http://markmail.org/message/mnowpijhnxg554t5
-  -1:
-
-  Additional patches: (line wrapping and docs spelling)
-  http://svn.apache.org/viewvc?view=revision&revision=1042452
-  http://svn.apache.org/viewvc?view=revision&revision=1042447
-  http://svn.apache.org/viewvc?view=revision&revision=1042494
-  +1: kkolinko
-   0: fhanik - don't see a need to change any line wrappings, it just causes 
clutter in the SVN diffs, but if it floats your boat :)
-      kkolinko: The above three additional patches (two by silvain and one by 
markt)
-      are trivial and IMHO qualify as CTR, so no actual need to vote for them.
-      I've put them here so that they are not forgotten.  Is there anything 
else
-      that Mark does not like with his "-0" ? I do not see anything else
-      in http://markmail.org/message/mnowpijhnxg554t5
-  -1:
-
 * Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50413
   Ensure 304s are not returned when using static files as error pages
   http://people.apache.org/~markt/patches/2011-01-04-bug50413-tc6.patch

Modified: 
tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java?rev=1056773&r1=1056772&r2=1056773&view=diff
==============================================================================
--- 
tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
 (original)
+++ 
tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
 Sat Jan  8 19:24:00 2011
@@ -108,6 +108,21 @@ public class JreMemoryLeakPreventionList
      }
      
     /**
+     * Protects against the memory leak caused when the first call to
+     * <code>javax.security.auth.login.Configuration</code> is triggered by a
+     * web application. This first call populate a static variable with a
+     * reference to the context class loader. Defaults to <code>true</code>.
+     */
+    private boolean securityLoginConfigurationProtection = true;
+    public boolean isSecurityLoginConfigurationProtection() {
+        return securityLoginConfigurationProtection;
+    }
+    public void setSecurityLoginConfigurationProtection(
+            boolean securityLoginConfigurationProtection) {
+        this.securityLoginConfigurationProtection = 
securityLoginConfigurationProtection;
+    }
+
+     /**
      * Protect against the memory leak, when the initialization of the
      * Java Cryptography Architecture is triggered by initializing
      * a MessageDigest during web application deployment.
@@ -273,6 +288,19 @@ public class JreMemoryLeakPreventionList
                     }
                 }
     
+                
+                /*
+                 * Initializing javax.security.auth.login.Configuration 
retains a static reference to the context 
+                 * class loader.
+                 */
+                if (securityLoginConfigurationProtection) {
+                    try {
+                        
Class.forName("javax.security.auth.login.Configuration", true, 
ClassLoader.getSystemClassLoader());
+                    } catch(ClassNotFoundException e) {
+                        // Ignore
+                    }
+                }
+
                 /*
                  * Creating a MessageDigest during web application startup
                  * initializes the Java Cryptography Architecture. Under 
certain

Modified: tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml?rev=1056773&r1=1056772&r2=1056773&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml Sat Jan  8 19:24:00 2011
@@ -194,6 +194,12 @@
         robust against objects with <code>toString()</code> methods that throw
         exceptions. (markt)
       </add>
+      <add>
+        <bug>50282</bug>: Load 
<code>javax.security.auth.login.Configuration</code>
+        with <code>JreMemoryLeakPreventionListener</code> to avoid memory leak
+        when stopping a webapp that would use JAAS.
+        (slaurent)
+      </add>
       <fix>
         <bug>50453</bug>: Correctly handle multiple 
<code>X-Forwarded-For</code>
         headers in the RemoteIpValve. Patch provided by Jim Riggs. (markt)

Modified: tomcat/tc6.0.x/trunk/webapps/docs/config/listeners.xml
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/config/listeners.xml?rev=1056773&r1=1056772&r2=1056773&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/config/listeners.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/config/listeners.xml Sat Jan  8 19:24:00 
2011
@@ -270,6 +270,16 @@ service:jmx:rmi://&lt;hostname&gt;:10002
         trigger a memory leak on reload. Defaults to <code>true</code>.</p>
       </attribute>
 
+      <attribute name="securityLoginConfigurationProtection" required="false">
+        <p>Enables protection so that usage of the
+        <code>javax.security.auth.login.Configuration</code> class by a web 
+        application does not provoke a memory leak. The first access of this 
+        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>
+      </attribute>
+
       <attribute name="securityPolicyProtection" required="false">
         <p>Enables protection so that usage of the deprecated
         <code>javax.security.auth.Policy</code> class by a web application 
does not



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