ApplicationContext (Apache Tomcat 7.0.81 API Documentation)

org.apache.catalina.core

## Class ApplicationContext

- java.lang.Object
- - org.apache.catalina.core.ApplicationContext

- All Implemented Interfaces:
    ServletContext
  Direct Known Subclasses:
    ReplicatedContext.ReplApplContext

      public class ApplicationContext
      extends Object
      implements ServletContext

  Standard implementation of `ServletContext` that represents a web application's execution environment. An instance of this class is associated with each instance of `StandardContext`.
  Author:
    Craig R. McClanahan, Remy Maucherat

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected Map<String,Object>` | `attributes` The context attributes for this context.
    `protected static boolean` | `GET_RESOURCE_REQUIRE_SLASH`
    `protected static boolean` | `STRICT_SERVLET_COMPLIANCE`

    - ### Fields inherited from interface javax.servlet.ServletContext

      `ORDERED_LIBS, TEMPDIR`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ApplicationContext(StandardContext context)` Construct a new instance of this class, associated with the specified Context instance.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `FilterRegistration.Dynamic` | `addFilter(String filterName, Class<? extends Filter> filterClass)` Add filter to context.
    `FilterRegistration.Dynamic` | `addFilter(String filterName, Filter filter)` Add filter to context.
    `FilterRegistration.Dynamic` | `addFilter(String filterName, String filterClass)` Add filter to context.
    `void` | `addListener(Class<? extends EventListener> listenerClass)`
    `void` | `addListener(String className)`
    `<T extends EventListener> void` | `addListener(T t)`
    `ServletRegistration.Dynamic` | `addServlet(String servletName, Class<? extends Servlet> servletClass)` Add servlet to context.
    `ServletRegistration.Dynamic` | `addServlet(String servletName, Servlet servlet)` Add servlet to context.
    `ServletRegistration.Dynamic` | `addServlet(String servletName, String servletClass)` Add servlet to context.
    `protected void` | `clearAttributes()` Clear all application-created attributes.
    `<T extends Filter> T` | `createFilter(Class<T> c)`
    `<T extends EventListener> T` | `createListener(Class<T> c)`
    `<T extends Servlet> T` | `createServlet(Class<T> c)`
    `void` | `declareRoles(String... roleNames)`
    `Object` | `getAttribute(String name)` Return the value of the specified context attribute, if any; otherwise return `null`.
    `Enumeration<String>` | `getAttributeNames()` Return an enumeration of the names of the context attributes associated with this context.
    `ClassLoader` | `getClassLoader()`
    `protected StandardContext` | `getContext()`
    `ServletContext` | `getContext(String uri)` Return a `ServletContext` object that corresponds to a specified URI on the server.
    `String` | `getContextPath()` Return the main path associated with this context.
    `Set<SessionTrackingMode>` | `getDefaultSessionTrackingModes()` By default `SessionTrackingMode.URL` is always supported, `SessionTrackingMode.COOKIE` is supported unless the `cookies` attribute has been set to `false` for the context and `SessionTrackingMode.SSL` is supported if at least one of the connectors used by this context has the attribute `secure` set to `true`.
    `int` | `getEffectiveMajorVersion()`
    `int` | `getEffectiveMinorVersion()`
    `Set<SessionTrackingMode>` | `getEffectiveSessionTrackingModes()` Return the supplied value if one was previously set, else return the defaults.
    `protected ServletContext` | `getFacade()` Return the facade associated with this ApplicationContext.
    `FilterRegistration` | `getFilterRegistration(String filterName)`
    `Map<String,? extends FilterRegistration>` | `getFilterRegistrations()`
    `String` | `getInitParameter(String name)` Return the value of the specified initialization parameter, or `null` if this parameter does not exist.
    `Enumeration<String>` | `getInitParameterNames()` Return the names of the context's initialization parameters, or an empty enumeration if the context has no initialization parameters.
    `JspConfigDescriptor` | `getJspConfigDescriptor()`
    `int` | `getMajorVersion()` Return the major version of the Java Servlet API that we implement.
    `String` | `getMimeType(String file)` Return the MIME type of the specified file, or `null` if the MIME type cannot be determined.
    `int` | `getMinorVersion()` Return the minor version of the Java Servlet API that we implement.
    `RequestDispatcher` | `getNamedDispatcher(String name)` Return a `RequestDispatcher` object that acts as a wrapper for the named servlet.
    `protected Map<String,String>` | `getReadonlyAttributes()` Deprecated.
    `String` | `getRealPath(String path)` Return the real path for a given virtual path, if possible; otherwise return `null`.
    `RequestDispatcher` | `getRequestDispatcher(String path)` Return a `RequestDispatcher` instance that acts as a wrapper for the resource at the given path.
    `URL` | `getResource(String path)` Return the URL to the resource that is mapped to a specified path.
    `InputStream` | `getResourceAsStream(String path)` Return the requested resource as an `InputStream`.
    `Set<String>` | `getResourcePaths(String path)` Return a Set containing the resource paths of resources member of the specified collection.
    `DirContext` | `getResources()` Deprecated.
    `String` | `getServerInfo()` Return the name and version of the servlet container.
    `Servlet` | `getServlet(String name)` Deprecated. As of Java Servlet API 2.1, with no direct replacement.
    `String` | `getServletContextName()` Return the display name of this web application.
    `Enumeration<String>` | `getServletNames()` Deprecated. As of Java Servlet API 2.1, with no direct replacement.
    `ServletRegistration` | `getServletRegistration(String servletName)` Obtain the details of the named servlet.
    `Map<String,? extends ServletRegistration>` | `getServletRegistrations()`
    `Enumeration<Servlet>` | `getServlets()` Deprecated. As of Java Servlet API 2.1, with no direct replacement.
    `SessionCookieConfig` | `getSessionCookieConfig()`
    `void` | `log(Exception exception, String message)` Deprecated. As of Java Servlet API 2.1, use `log(String, Throwable)` instead
    `void` | `log(String message)` Writes the specified message to a servlet log file.
    `void` | `log(String message, Throwable throwable)` Writes the specified message and exception to a servlet log file.
    `void` | `removeAttribute(String name)` Remove the context attribute with the specified name, if any.
    `void` | `setAttribute(String name, Object value)` Bind the specified value with the specified context attribute name, replacing any existing value for that name.
    `boolean` | `setInitParameter(String name, String value)`
    `protected void` | `setNewServletContextListenerAllowed(boolean allowed)`
    `void` | `setSessionTrackingModes(Set<SessionTrackingMode> sessionTrackingModes)`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### STRICT_SERVLET_COMPLIANCE

          protected static final boolean STRICT_SERVLET_COMPLIANCE

    - #### GET_RESOURCE_REQUIRE_SLASH

          protected static final boolean GET_RESOURCE_REQUIRE_SLASH

    - #### attributes

          protected Map<String,Object> attributes

      The context attributes for this context.

  - ### Constructor Detail

    - #### ApplicationContext

          public ApplicationContext(StandardContext context)

      Construct a new instance of this class, associated with the specified Context instance.
      Parameters:
        `context` - The associated Context instance

  - ### Method Detail

    - #### getResources

          @Deprecated
          public DirContext getResources()

      Deprecated.

    - #### getAttribute

          public Object getAttribute(String name)

      Return the value of the specified context attribute, if any; otherwise return `null`.
      Specified by:
        `getAttribute` in interface `ServletContext`
      Parameters:
        `name` - Name of the context attribute to return
      Returns:
        an `Object` containing the value of the attribute, or `null` if no attribute exists matching the given name
      See Also:
        `ServletContext.getAttributeNames()`

    - #### getAttributeNames

          public Enumeration<String> getAttributeNames()

      Return an enumeration of the names of the context attributes associated with this context.
      Specified by:
        `getAttributeNames` in interface `ServletContext`
      Returns:
        an `Enumeration` of attribute names
      See Also:
        `ServletContext.getAttribute(java.lang.String)`

    - #### getContext

          public ServletContext getContext(String uri)

      Return a `ServletContext` object that corresponds to a specified URI on the server. This method allows servlets to gain access to the context for various parts of the server, and as needed obtain `RequestDispatcher` objects or resources from the context. The given path must be absolute (beginning with a "/"), and is interpreted based on our virtual host's document root.
      Specified by:
        `getContext` in interface `ServletContext`
      Parameters:
        `uri` - Absolute URI of a resource on the server
      Returns:
        the `ServletContext` object that corresponds to the named URL, or null if either none exists or the container wishes to restrict this access.
      See Also:
        `RequestDispatcher`

    - #### getContextPath

          public String getContextPath()

      Return the main path associated with this context.
      Specified by:
        `getContextPath` in interface `ServletContext`

    - #### getInitParameter

          public String getInitParameter(String name)

      Return the value of the specified initialization parameter, or `null` if this parameter does not exist.
      Specified by:
        `getInitParameter` in interface `ServletContext`
      Parameters:
        `name` - Name of the initialization parameter to retrieve
      Returns:
        a `String` containing the value of the initialization parameter
      See Also:
        `ServletConfig.getInitParameter(java.lang.String)`

    - #### getInitParameterNames

          public Enumeration<String> getInitParameterNames()

      Return the names of the context's initialization parameters, or an empty enumeration if the context has no initialization parameters.
      Specified by:
        `getInitParameterNames` in interface `ServletContext`
      Returns:
        an `Enumeration` of `String` objects containing the names of the context's initialization parameters
      See Also:
        `ServletConfig.getInitParameter(java.lang.String)`

    - #### getMajorVersion

          public int getMajorVersion()

      Return the major version of the Java Servlet API that we implement.
      Specified by:
        `getMajorVersion` in interface `ServletContext`
      Returns:
        3

    - #### getMinorVersion

          public int getMinorVersion()

      Return the minor version of the Java Servlet API that we implement.
      Specified by:
        `getMinorVersion` in interface `ServletContext`
      Returns:
        0

    - #### getMimeType

          public String getMimeType(String file)

      Return the MIME type of the specified file, or `null` if the MIME type cannot be determined.
      Specified by:
        `getMimeType` in interface `ServletContext`
      Parameters:
        `file` - Filename for which to identify a MIME type
      Returns:
        a `String` specifying the file's MIME type

    - #### getNamedDispatcher

          public RequestDispatcher getNamedDispatcher(String name)

      Return a `RequestDispatcher` object that acts as a wrapper for the named servlet.
      Specified by:
        `getNamedDispatcher` in interface `ServletContext`
      Parameters:
        `name` - Name of the servlet for which a dispatcher is requested
      Returns:
        a `RequestDispatcher` object that acts as a wrapper for the named servlet, or `null` if the `ServletContext` cannot return a `RequestDispatcher`
      See Also:
        `RequestDispatcher`, `ServletContext.getContext(java.lang.String)`, `ServletConfig.getServletName()`

    - #### getRealPath

          public String getRealPath(String path)

      Return the real path for a given virtual path, if possible; otherwise return `null`.
      Specified by:
        `getRealPath` in interface `ServletContext`
      Parameters:
        `path` - The path to the desired resource
      Returns:
        a `String` specifying the real path, or null if the translation cannot be performed

    - #### getRequestDispatcher

          public RequestDispatcher getRequestDispatcher(String path)

      Return a `RequestDispatcher` instance that acts as a wrapper for the resource at the given path. The path must begin with a "/" and is interpreted as relative to the current context root.
      Specified by:
        `getRequestDispatcher` in interface `ServletContext`
      Parameters:
        `path` - The path to the desired resource.
      Returns:
        a `RequestDispatcher` object that acts as a wrapper for the resource at the specified path, or `null` if the `ServletContext` cannot return a `RequestDispatcher`
      See Also:
        `RequestDispatcher`, `ServletContext.getContext(java.lang.String)`

    - #### getResource

          public URL getResource(String path)
                          throws MalformedURLException

      Return the URL to the resource that is mapped to a specified path. The path must begin with a "/" and is interpreted as relative to the current context root.
      Specified by:
        `getResource` in interface `ServletContext`
      Parameters:
        `path` - The path to the desired resource
      Returns:
        the resource located at the named path, or `null` if there is no resource at that path
      Throws:
        `MalformedURLException` - if the path is not given in the correct form

    - #### getResourceAsStream

          public InputStream getResourceAsStream(String path)

      Return the requested resource as an `InputStream`. The path must be specified according to the rules described under `getResource`. If no such resource can be identified, return `null`.
      Specified by:
        `getResourceAsStream` in interface `ServletContext`
      Parameters:
        `path` - The path to the desired resource.
      Returns:
        the `InputStream` returned to the servlet, or `null` if no resource exists at the specified path

    - #### getResourcePaths

          public Set<String> getResourcePaths(String path)

      Return a Set containing the resource paths of resources member of the specified collection. Each path will be a String starting with a "/" character. The returned set is immutable.
      Specified by:
        `getResourcePaths` in interface `ServletContext`
      Parameters:
        `path` - Collection path
      Returns:
        a Set containing the directory listing, or null if there are no resources in the web application whose path begins with the supplied path.

    - #### getServerInfo

          public String getServerInfo()

      Return the name and version of the servlet container.
      Specified by:
        `getServerInfo` in interface `ServletContext`
      Returns:
        a `String` containing at least the servlet container name and version number

    - #### getServlet

          @Deprecated
          public Servlet getServlet(String name)

      Deprecated. As of Java Servlet API 2.1, with no direct replacement.
      Specified by:
        `getServlet` in interface `ServletContext`

    - #### getServletContextName

          public String getServletContextName()

      Return the display name of this web application.
      Specified by:
        `getServletContextName` in interface `ServletContext`
      Returns:
        The name of the web application or null if no name has been declared in the deployment descriptor.

    - #### getServletNames

          @Deprecated
          public Enumeration<String> getServletNames()

      Deprecated. As of Java Servlet API 2.1, with no direct replacement.
      Specified by:
        `getServletNames` in interface `ServletContext`

    - #### getServlets

          @Deprecated
          public Enumeration<Servlet> getServlets()

      Deprecated. As of Java Servlet API 2.1, with no direct replacement.
      Specified by:
        `getServlets` in interface `ServletContext`

    - #### log

          public void log(String message)

      Writes the specified message to a servlet log file.
      Specified by:
        `log` in interface `ServletContext`
      Parameters:
        `message` - Message to be written

    - #### log

          @Deprecated
          public void log(Exception exception,
                            String message)

      Deprecated. As of Java Servlet API 2.1, use `log(String, Throwable)` instead
      Writes the specified exception and message to a servlet log file.
      Specified by:
        `log` in interface `ServletContext`
      Parameters:
        `exception` - Exception to be reported
        `message` - Message to be written

    - #### log

          public void log(String message,
                 Throwable throwable)

      Writes the specified message and exception to a servlet log file.
      Specified by:
        `log` in interface `ServletContext`
      Parameters:
        `message` - Message to be written
        `throwable` - Exception to be reported

    - #### removeAttribute

          public void removeAttribute(String name)

      Remove the context attribute with the specified name, if any.
      Specified by:
        `removeAttribute` in interface `ServletContext`
      Parameters:
        `name` - Name of the context attribute to be removed

    - #### setAttribute

          public void setAttribute(String name,
                          Object value)

      Bind the specified value with the specified context attribute name, replacing any existing value for that name.
      Specified by:
        `setAttribute` in interface `ServletContext`
      Parameters:
        `name` - Attribute name to be bound
        `value` - New attribute value to be bound

    - #### addFilter

          public FilterRegistration.Dynamic addFilter(String filterName,
                                             String filterClass)
                                               throws IllegalStateException

      Add filter to context.
      Specified by:
        `addFilter` in interface `ServletContext`
      Parameters:
        `filterName` - Name of filter to add
        `filterClass` - Name of filter class
      Returns:
        `null` if the filter has already been fully defined, else a `FilterRegistration.Dynamic` object that can be used to further configure the filter
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `UnsupportedOperationException` - - if this context was passed to the `ServletContextListener.contextInitialized(javax.servlet.ServletContextEvent)` method of a `ServletContextListener` that was not declared in web.xml, a web-fragment or annotated with `WebListener`.

    - #### addFilter

          public FilterRegistration.Dynamic addFilter(String filterName,
                                             Filter filter)
                                               throws IllegalStateException

      Add filter to context.
      Specified by:
        `addFilter` in interface `ServletContext`
      Parameters:
        `filterName` - Name of filter to add
        `filter` - Filter to add
      Returns:
        `null` if the filter has already been fully defined, else a `FilterRegistration.Dynamic` object that can be used to further configure the filter
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `UnsupportedOperationException` - - if this context was passed to the `ServletContextListener.contextInitialized(javax.servlet.ServletContextEvent)` method of a `ServletContextListener` that was not declared in web.xml, a web-fragment or annotated with `WebListener`.

    - #### addFilter

          public FilterRegistration.Dynamic addFilter(String filterName,
                                             Class<? extends Filter> filterClass)
                                               throws IllegalStateException

      Add filter to context.
      Specified by:
        `addFilter` in interface `ServletContext`
      Parameters:
        `filterName` - Name of filter to add
        `filterClass` - Class of filter to add
      Returns:
        `null` if the filter has already been fully defined, else a `FilterRegistration.Dynamic` object that can be used to further configure the filter
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `UnsupportedOperationException` - - if this context was passed to the `ServletContextListener.contextInitialized(javax.servlet.ServletContextEvent)` method of a `ServletContextListener` that was not declared in web.xml, a web-fragment or annotated with `WebListener`.

    - #### createFilter

          public <T extends Filter> T createFilter(Class<T> c)
                                        throws ServletException

      Specified by:
        `createFilter` in interface `ServletContext`
      Returns:
        TODO
      Throws:
        `ServletException`

    - #### getFilterRegistration

          public FilterRegistration getFilterRegistration(String filterName)

      Specified by:
        `getFilterRegistration` in interface `ServletContext`
      Returns:
        TODO

    - #### addServlet

          public ServletRegistration.Dynamic addServlet(String servletName,
                                               String servletClass)
                                                 throws IllegalStateException

      Add servlet to context.
      Specified by:
        `addServlet` in interface `ServletContext`
      Parameters:
        `servletName` - Name of servlet to add
        `servletClass` - Name of servlet class
      Returns:
        `null` if the servlet has already been fully defined, else a `ServletRegistration.Dynamic` object that can be used to further configure the servlet
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `UnsupportedOperationException` - - if this context was passed to the `ServletContextListener.contextInitialized(javax.servlet.ServletContextEvent)` method of a `ServletContextListener` that was not declared in web.xml, a web-fragment or annotated with `WebListener`.

    - #### addServlet

          public ServletRegistration.Dynamic addServlet(String servletName,
                                               Servlet servlet)
                                                 throws IllegalStateException

      Add servlet to context.
      Specified by:
        `addServlet` in interface `ServletContext`
      Parameters:
        `servletName` - Name of servlet to add
        `servlet` - Servlet instance to add
      Returns:
        `null` if the servlet has already been fully defined, else a `ServletRegistration.Dynamic` object that can be used to further configure the servlet
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `UnsupportedOperationException` - - if this context was passed to the `ServletContextListener.contextInitialized(javax.servlet.ServletContextEvent)` method of a `ServletContextListener` that was not declared in web.xml, a web-fragment or annotated with `WebListener`.

    - #### addServlet

          public ServletRegistration.Dynamic addServlet(String servletName,
                                               Class<? extends Servlet> servletClass)
                                                 throws IllegalStateException

      Add servlet to context.
      Specified by:
        `addServlet` in interface `ServletContext`
      Parameters:
        `servletName` - Name of servlet to add
        `servletClass` - Class of servlet to add
      Returns:
        `null` if the servlet has already been fully defined, else a `ServletRegistration.Dynamic` object that can be used to further configure the servlet
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `UnsupportedOperationException` - - if this context was passed to the `ServletContextListener.contextInitialized(javax.servlet.ServletContextEvent)` method of a `ServletContextListener` that was not declared in web.xml, a web-fragment or annotated with `WebListener`.

    - #### createServlet

          public <T extends Servlet> T createServlet(Class<T> c)
                                          throws ServletException

      Specified by:
        `createServlet` in interface `ServletContext`
      Returns:
        TODO
      Throws:
        `ServletException`

    - #### getServletRegistration

          public ServletRegistration getServletRegistration(String servletName)

      Description copied from interface: `javax.servlet.ServletContext`
      Obtain the details of the named servlet.
      Specified by:
        `getServletRegistration` in interface `ServletContext`
      Parameters:
        `servletName` - The name of the Servlet of interest
      Returns:
        The registration details for the named Servlet or `null` if no Servlet has been registered with the given name

    - #### getDefaultSessionTrackingModes

          public Set<SessionTrackingMode> getDefaultSessionTrackingModes()

      By default `SessionTrackingMode.URL` is always supported, `SessionTrackingMode.COOKIE` is supported unless the `cookies` attribute has been set to `false` for the context and `SessionTrackingMode.SSL` is supported if at least one of the connectors used by this context has the attribute `secure` set to `true`.
      Specified by:
        `getDefaultSessionTrackingModes` in interface `ServletContext`
      Returns:
        TODO

    - #### getEffectiveSessionTrackingModes

          public Set<SessionTrackingMode> getEffectiveSessionTrackingModes()

      Return the supplied value if one was previously set, else return the defaults.
      Specified by:
        `getEffectiveSessionTrackingModes` in interface `ServletContext`
      Returns:
        TODO

    - #### getSessionCookieConfig

          public SessionCookieConfig getSessionCookieConfig()

      Specified by:
        `getSessionCookieConfig` in interface `ServletContext`
      Returns:
        TODO

    - #### setSessionTrackingModes

          public void setSessionTrackingModes(Set<SessionTrackingMode> sessionTrackingModes)

      Specified by:
        `setSessionTrackingModes` in interface `ServletContext`
      Throws:
        `IllegalStateException` - if the context has already been initialised
        `IllegalArgumentException` - If SSL is requested in combination with anything else or if an unsupported tracking mode is requested

    - #### setInitParameter

          public boolean setInitParameter(String name,
                                 String value)

      Specified by:
        `setInitParameter` in interface `ServletContext`
      Returns:
        TODO

    - #### addListener

          public void addListener(Class<? extends EventListener> listenerClass)

      Specified by:
        `addListener` in interface `ServletContext`

    - #### addListener

          public void addListener(String className)

      Specified by:
        `addListener` in interface `ServletContext`

    - #### addListener

          public <T extends EventListener> void addListener(T t)

      Specified by:
        `addListener` in interface `ServletContext`

    - #### createListener

          public <T extends EventListener> T createListener(Class<T> c)
                                                 throws ServletException

      Specified by:
        `createListener` in interface `ServletContext`
      Returns:
        TODO
      Throws:
        `ServletException`

    - #### declareRoles

          public void declareRoles(String... roleNames)

      Specified by:
        `declareRoles` in interface `ServletContext`

    - #### getClassLoader

          public ClassLoader getClassLoader()

      Specified by:
        `getClassLoader` in interface `ServletContext`
      Returns:
        TODO

    - #### getEffectiveMajorVersion

          public int getEffectiveMajorVersion()

      Specified by:
        `getEffectiveMajorVersion` in interface `ServletContext`
      Returns:
        TODO

    - #### getEffectiveMinorVersion

          public int getEffectiveMinorVersion()

      Specified by:
        `getEffectiveMinorVersion` in interface `ServletContext`
      Returns:
        TODO

    - #### getFilterRegistrations

          public Map<String,? extends FilterRegistration> getFilterRegistrations()

      Specified by:
        `getFilterRegistrations` in interface `ServletContext`
      Returns:
        TODO

    - #### getJspConfigDescriptor

          public JspConfigDescriptor getJspConfigDescriptor()

      Specified by:
        `getJspConfigDescriptor` in interface `ServletContext`
      Returns:
        TODO

    - #### getServletRegistrations

          public Map<String,? extends ServletRegistration> getServletRegistrations()

      Specified by:
        `getServletRegistrations` in interface `ServletContext`
      Returns:
        TODO

    - #### getContext

          protected StandardContext getContext()

    - #### getReadonlyAttributes

          @Deprecated
          protected Map<String,String> getReadonlyAttributes()

      Deprecated.

    - #### clearAttributes

          protected void clearAttributes()

      Clear all application-created attributes.

    - #### getFacade

          protected ServletContext getFacade()

      Return the facade associated with this ApplicationContext.

    - #### setNewServletContextListenerAllowed

          protected void setNewServletContextListenerAllowed(boolean allowed)

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