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| <h1 title="Package" class="title">Package org.eclipse.jetty.util.preventers</h1> |
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| <div class="block">Jetty Util : Common Memory Leak Prevention Tooling</div> |
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| <caption><span>Class Summary</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
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| <th class="colFirst" scope="row"><a href="AbstractLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">AbstractLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">AbstractLeakPreventer |
| |
| Abstract base class for code that seeks to avoid pinning of webapp classloaders by using the jetty classloader to |
| proactively call the code that pins them (generally pinned as static data members, or as static |
| data members that are daemon threads (which use the context classloader)).</div> |
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| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="AppContextLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">AppContextLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">AppContextLeakPreventer |
| |
| Cause the classloader that is pinned by AppContext.getAppContext() to be |
| a container or system classloader, not a webapp classloader.</div> |
| </td> |
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| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="AWTLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">AWTLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">AWTLeakPreventer |
| |
| See https://issues.jboss.org/browse/AS7-3733 |
| |
| The java.awt.Toolkit class has a static field that is the default toolkit.</div> |
| </td> |
| </tr> |
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| <th class="colFirst" scope="row"><a href="DOMLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">DOMLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">DOMLeakPreventer |
| |
| See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6916498 |
| |
| Prevent the RuntimeException that is a static member of AbstractDOMParser |
| from pinning a webapp classloader by causing it to be set here by a non-webapp classloader.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="DriverManagerLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">DriverManagerLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">DriverManagerLeakPreventer |
| |
| Cause DriverManager.getCallerClassLoader() to be called, which will pin the classloader.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="GCThreadLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">GCThreadLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">GCThreadLeakPreventer |
| |
| Prevents a call to sun.misc.GC.requestLatency pinning a webapp classloader |
| by calling it with a non-webapp classloader.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Java2DLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">Java2DLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">Java2DLeakPreventer |
| |
| Prevent pinning of webapp classloader by pre-loading sun.java2d.Disposer class |
| before webapp classloaders are created.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="LDAPLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">LDAPLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">LDAPLeakPreventer |
| |
| If com.sun.jndi.LdapPoolManager class is loaded and the system property |
| com.sun.jndi.ldap.connect.pool.timeout is set to a nonzero value, a daemon |
| thread is started which can pin a webapp classloader if it is the first to |
| load the LdapPoolManager.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="LoginConfigurationLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">LoginConfigurationLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">LoginConfigurationLeakPreventer |
| |
| The javax.security.auth.login.Configuration class keeps a static reference to the |
| thread context classloader.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SecurityProviderLeakPreventer.html" title="class in org.eclipse.jetty.util.preventers">SecurityProviderLeakPreventer</a></th> |
| <td class="colLast"> |
| <div class="block">SecurityProviderLeakPreventer |
| |
| Some security providers, such as sun.security.pkcs11.SunPKCS11 start a deamon thread, |
| which will use the thread context classloader.</div> |
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