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Posted to dev@tomcat.apache.org by ma...@apache.org on 2016/05/06 19:01:45 UTC

svn commit: r1742592 - in /tomcat/trunk: java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java webapps/docs/changelog.xml webapps/docs/config/listeners.xml

Author: markt
Date: Fri May  6 19:01:45 2016
New Revision: 1742592

URL: http://svn.apache.org/viewvc?rev=1742592&view=rev
Log:
Remove another unnecessary option from the memory leak protection

Modified:
    tomcat/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
    tomcat/trunk/webapps/docs/changelog.xml
    tomcat/trunk/webapps/docs/config/listeners.xml

Modified: tomcat/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java?rev=1742592&r1=1742591&r2=1742592&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java (original)
+++ tomcat/trunk/java/org/apache/catalina/core/JreMemoryLeakPreventionListener.java Fri May  6 19:01:45 2016
@@ -87,21 +87,6 @@ public class JreMemoryLeakPreventionList
         this.gcDaemonProtection = gcDaemonProtection;
     }
 
-    /**
-     * 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
@@ -260,18 +245,6 @@ 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/trunk/webapps/docs/changelog.xml
URL: http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1742592&r1=1742591&r2=1742592&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Fri May  6 19:01:45 2016
@@ -193,6 +193,12 @@
         8 onwards and Tomcat 9 requires Java 8 so the option is unnecessary.
         (markt)
       </scode>
+      <scode>
+        Remove the <code>securityLoginConfigurationProtection</code> option from
+        the <code>JreMemoryLeakPreventionListener</code>. The leak is fixed in
+        Java 8 onwards and Tomcat 9 requires Java 8 so the option is
+        unnecessary. (markt)
+      </scode>
     </changelog>
   </subsection>
   <subsection name="Coyote">

Modified: tomcat/trunk/webapps/docs/config/listeners.xml
URL: http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/config/listeners.xml?rev=1742592&r1=1742591&r2=1742592&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/config/listeners.xml (original)
+++ tomcat/trunk/webapps/docs/config/listeners.xml Fri May  6 19:01:45 2016
@@ -226,16 +226,6 @@
         <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="tokenPollerProtection" required="false">
         <p>Enables protection so that any token poller thread initialized by
         <code>sun.security.pkcs11.SunPKCS11.initToken()</code> does not



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