Package org.apache.catalina.core

Class JreMemoryLeakPreventionListener

  • All Implemented Interfaces:
    LifecycleListener
    public class JreMemoryLeakPreventionListener
extends java.lang.Object
implements LifecycleListener
    Provide a workaround for known places where the Java Runtime environment can cause a memory leak or lock files.

    Memory leaks occur when JRE code uses the context class loader to load a singleton as this will cause a memory leak if a web application class loader happens to be the context class loader at the time. The work-around is to initialise these singletons when Tomcat's common class loader is the context class loader.

    Locked files usually occur when a resource inside a JAR is accessed without first disabling Jar URL connection caching. The workaround is to disable this caching by default.

    This listener must only be nested within Server elements.

    • Constructor Detail

      • JreMemoryLeakPreventionListener

        public JreMemoryLeakPreventionListener()
        Constructs a new JreMemoryLeakPreventionListener.

    • Method Detail

      • isAppContextProtection

        public boolean isAppContextProtection()
        Get the app context protection flag.
        Returns:
        the app context protection flag

      • setAppContextProtection

        public void setAppContextProtection​(boolean appContextProtection)
        Set the app context protection flag.
        Parameters:
        appContextProtection - the flag to set

      • isUrlCacheProtection

        public boolean isUrlCacheProtection()
        Get the URL cache protection flag.
        Returns:
        the URL cache protection flag

      • setUrlCacheProtection

        public void setUrlCacheProtection​(boolean urlCacheProtection)
        Set the URL cache protection flag.
        Parameters:
        urlCacheProtection - the flag to set

      • isDriverManagerProtection

        public boolean isDriverManagerProtection()
        Get the DriverManager protection flag.
        Returns:
        the DriverManager protection flag

      • setDriverManagerProtection

        public void setDriverManagerProtection​(boolean driverManagerProtection)
        Set the DriverManager protection flag.
        Parameters:
        driverManagerProtection - the flag to set

      • getClassesToInitialize

        public java.lang.String getClassesToInitialize()
        Get the classes to initialize.
        Returns:
        the classes to initialize

      • setClassesToInitialize

        public void setClassesToInitialize​(java.lang.String classesToInitialize)
        Set the classes to initialize.
        Parameters:
        classesToInitialize - the classes to initialize

      • getInitSeedGenerator

        public boolean getInitSeedGenerator()
        Get the init seed generator flag.
        Returns:
        the init seed generator flag

      • setInitSeedGenerator

        public void setInitSeedGenerator​(boolean initSeedGenerator)
        Set the init seed generator flag.
        Parameters:
        initSeedGenerator - the flag to set