ServletContext (GNU Servlet API documentation)

```
public interface ServletContext
```
A class created by the server to give servlets access to certain environment related objects and methods.
It contains standard information like the names of all the servlets, two kinds of log methods, the server name, etc.
The server can also store extra information here in the form of {String, Object} pairs. Different servlets can live in different ServletContexts, but a servlet engine can group related Servlets in the same ServletContext.
Servlet specific information can be transferred to a servlet using a class implementing the ServletConfig interface.

Since:

1.0

Field Summary

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`ORDERED_LIBS` Servlet context attribute that stores a List of Strings containing the names of JAR files in `WEB-INF/lib` ordered by their web fragment names, or null if no relative ordering is specified.
`static java.lang.String`	`TEMPDIR` Servlet context attribute that stores a `File` temporary directory for the application's private use.

Method Summary

Methods
Modifier and Type	Method and Description
`FilterRegistration.Dynamic`	`addFilter(java.lang.String filterName, java.lang.Class<? extends Filter> t)` Adds the filter with the specified name and class to this context.
`FilterRegistration.Dynamic`	`addFilter(java.lang.String filterName, Filter filter)` Adds the filter with the specified name to this context.
`FilterRegistration.Dynamic`	`addFilter(java.lang.String filterName, java.lang.String className)` Adds the filter with the specified name and class to this context.
`void`	`addListener(java.lang.Class<? extends java.util.EventListener> t)` Adds the listener with the specified class to this context.
`void`	`addListener(java.util.EventListener listener)` Adds the specified listener to this context.
`void`	`addListener(java.lang.String className)` Adds the listener with the specified class name to this context.
`ServletRegistration.Dynamic`	`addServlet(java.lang.String servletName, java.lang.Class<? extends Servlet> t)` Adds the servlet with the specified name and class to this context.
`ServletRegistration.Dynamic`	`addServlet(java.lang.String servletName, Servlet servlet)` Adds the servlet with the specified name to this context.
`ServletRegistration.Dynamic`	`addServlet(java.lang.String servletName, java.lang.String className)` Adds the servlet with the specified name and class to this context.
`<T extends Filter> T`	`createFilter(java.lang.Class<T> t)` Instantiates the specified filter class.
`<T extends java.util.EventListener> T`	`createListener(java.lang.Class<T> listenerClass)` Instantiates the specified listener class.
`<T extends Servlet> T`	`createServlet(java.lang.Class<T> t)` Instantiates the specified servlet class.
`void`	`declareRoles(java.lang.String... roleNames)` Declare role names for `#isUserInRole`.
`java.lang.Object`	`getAttribute(java.lang.String name)` Gets the value of a named attribute
`java.util.Enumeration`	`getAttributeNames()` Gets an enumeration containing all the attribute names
`java.lang.ClassLoader`	`getClassLoader()` Returns the classloader used by this context to load application classes.
`ServletContext`	`getContext(java.lang.String UriPath)` Gives the `ServletContext` of another servlet indicated by the `UriPath` on the same server.
`java.lang.String`	`getContextPath()` Returns the context path of the web application.
`java.util.Set<SessionTrackingMode>`	`getDefaultSessionTrackingModes()` Returns the default session tracking modes for this context.
`int`	`getEffectiveMajorVersion()` Returns the major version number of the servlet specification that the web application is based on.
`int`	`getEffectiveMinorVersion()` Returns the minor version number of the servlet specification that the web application is based on.
`java.util.Set<SessionTrackingMode>`	`getEffectiveSessionTrackingModes()` Returns the current session tracking modes for this context.
`FilterRegistration`	`getFilterRegistration(java.lang.String filterName)` Returns the servlet registration corresponding to the servlet with the specified name.
`java.util.Map<java.lang.String,? extends FilterRegistration>`	`getFilterRegistrations()` Returns a map of filter names to registrations for all filters in this context.
`java.lang.String`	`getInitParameter(java.lang.String name)` get the application initialization parameter associated with the name.
`java.util.Enumeration`	`getInitParameterNames()` get a list of the init parameter names.
`JspConfigDescriptor`	`getJspConfigDescriptor()` Returns the JSP configuration from the `jsp-config` elements in the `web.xml` and/or `web-fragment.xml` descriptors for this context.
`int`	`getMajorVersion()` Major version number of the Servlet API the servlet engine supports.
`java.lang.String`	`getMimeType(java.lang.String filename)` Gives the mimetype of the requested file
`int`	`getMinorVersion()` Minor version number of the Servlet API the servlet engine supports.
`RequestDispatcher`	`getNamedDispatcher(java.lang.String name)` get a dispatcher which wraps the servlet specified by name.
`java.lang.String`	`getRealPath(java.lang.String virtualPath)` Translates the requested virtual path to the real filesystem path using the servers knowledge of the document root.
`RequestDispatcher`	`getRequestDispatcher(java.lang.String UriPath)` Returns a `RequestDispatcher` to forward requests or include responses from another (active) resource.
`java.net.URL`	`getResource(java.lang.String virtualPath)` Translates the requested virtual path to an URL object that can be accesed by the servlet.
`java.io.InputStream`	`getResourceAsStream(java.lang.String virtualPath)` A convenience method for `getResource(virtualPath).openStream()`.
`java.util.Set`	`getResourcePaths(java.lang.String pathPrefix)` Returns a listing of all the resources that are accessible inside this web application, whose paths start with the path provided specified.
`java.lang.String`	`getServerInfo()` A server supplied string containing the server name, version number, etc
`Servlet`	`getServlet(java.lang.String name)` Deprecated. as of Servlet API 2.1, use `RequestDispatcher`s instead; this now always returns `null`
`java.lang.String`	`getServletContextName()` Get the Servlet Context Name
`java.util.Enumeration`	`getServletNames()` Deprecated. since 2.1, use a `RequestDispatcher` instead; now this always returns an empty `Enumeration`.
`ServletRegistration`	`getServletRegistration(java.lang.String servletName)` Returns the servlet registration corresponding to the servlet with the specified name.
`java.util.Map<java.lang.String,? extends Registration>`	`getServletRegistrations()` Returns a map of servlet names to registrations for all servlets in this context.
`java.util.Enumeration`	`getServlets()` Deprecated. as of Servlet API 2.1, there is no equivalent now. this Always returns an empty `Enumeration`.
`SessionCookieConfig`	`getSessionCookieConfig()` Returns the configuration object for configuring properties of session tracking cookies in this context.
`void`	`log(java.lang.Exception exception, java.lang.String message)` Deprecated. Use `log(String, Throwable)` which is more general.
`void`	`log(java.lang.String message)` Writes a message to the log
`void`	`log(java.lang.String message, java.lang.Throwable t)` Writes an exception + message to the log
`void`	`removeAttribute(java.lang.String name)` Removes the named object from the `ServletContext`
`void`	`setAttribute(java.lang.String name, java.lang.Object object)` Puts a named object into the `ServletContext`.
`boolean`	`setInitParameter(java.lang.String name, java.lang.String value)` Sets the specified initialization parameter on this context.
`void`	`setSessionTrackingModes(java.util.Set<SessionTrackingMode> set)` Sets the session tracking modes for this context.

- Field Detail
  - TEMPDIR
```
static final java.lang.String TEMPDIR
```
    Servlet context attribute that stores a File temporary directory for the application's private use.
    
    See Also:
    Constant Field Values
  - ORDERED_LIBS
```
static final java.lang.String ORDERED_LIBS
```
    Servlet context attribute that stores a List of Strings containing the names of JAR files in WEB-INF/lib ordered by their web fragment names, or null if no relative ordering is specified.
    
    See Also:
    Constant Field Values
- Method Detail
  - getContextPath
```
java.lang.String getContextPath()
```
    Returns the context path of the web application.
    
    Since:
    
    2.5
  - getContext
```
ServletContext getContext(java.lang.String UriPath)
```
    Gives the ServletContext of another servlet indicated by the UriPath on the same server. For security reasons this can return null even if there is an active servlet at that location. This can then be used to set attributes in the context of another servlet.
    
    Parameters:
    UriPath - The path to the servlet, such as /servlet/ShowBook
    
    Returns:
    ServletContext of the requested servlet or null if there is no servlet at the requested UriPath or when it is unavailable due to security restrictions
    Since:
    
    2.1
    
    See Also:
    setAttribute(java.lang.String, java.lang.Object)
  - getMajorVersion
```
int getMajorVersion()
```
    Major version number of the Servlet API the servlet engine supports.
    
    Since:
    
    2.1
  - getMinorVersion
```
int getMinorVersion()
```
    Minor version number of the Servlet API the servlet engine supports.
    
    Since:
    
    2.1
  - getEffectiveMajorVersion
```
int getEffectiveMajorVersion()
```
    Returns the major version number of the servlet specification that the web application is based on.
    
    Since:
    
    3.0
  - getEffectiveMinorVersion
```
int getEffectiveMinorVersion()
```
    Returns the minor version number of the servlet specification that the web application is based on.
    
    Since:
    
    3.0
  - getMimeType
```
java.lang.String getMimeType(java.lang.String filename)
```
    Gives the mimetype of the requested file
    
    Parameters:
    filename - the file
    
    Returns:
    a String containing the mime type or null if the mime type cannot be determined
    Since:
    
    1.0
  - getResourcePaths
```
java.util.Set getResourcePaths(java.lang.String pathPrefix)
```
    Returns a listing of all the resources that are accessible inside this web application, whose paths start with the path provided specified. This path must start with a "/", and all paths in the resulting set will be relative to the root of the web application So a call of getResourcePaths ("/images/jpegs/") might yield the set {"/images/jpegs/a.jpg","/images/jpegs/b.jpg,..."}
    
    Parameters:
    pathPrefix - The path starting with "/" used to match against the resources
    
    Returns:
    a Set containing the paths of the matching resources or null if no resources with the specified prefix can be found
    Since:
    
    2.3
  - getResource
```
java.net.URL getResource(java.lang.String virtualPath)
                         throws java.net.MalformedURLException
```
    Translates the requested virtual path to an URL object that can be accesed by the servlet. This is more generic than the getRealPath method since it is not tied to the local filesystem. This means that a servlet can access the resource even when loaded in a servlet engine on a different machine. The servlet engine should make sure that the appropriate URLStreamHandlers and URLConnection classes are implemented to acces to resource.
    This can also be used to write to a resource if the resource (URLConnection) supports it. The following example gives you an OutputStream:
    
    URLConnection con = getResource("/logs/mylog.txt").openConnection(); con.setDoOutput(true); OutputStream out = con.getOutputStream();
    Note that a ServerContext does not have to have access to the complete servers document space and is allowed to return null even for valid virtual paths.
    Note that according to the 2.1 API documentation this method can throw a MalformedURLException. But according to the official spec it does not throw any exceptions.
    
    Parameters:
    virtualPath - the path to the requested resource (e.g. /philosophy/words-to-avoid.html)
    
    Returns:
    the URL that can be used to access the resource or null if the resource cannot be found
    
    Throws:
    
    java.net.MalformedURLException
    Since:
    
    2.1
    
    See Also:
    URL.openConnection(), URLConnection.setDoOutput(boolean), URLConnection.getOutputStream()
  - getResourceAsStream
```
java.io.InputStream getResourceAsStream(java.lang.String virtualPath)
```
    A convenience method for getResource(virtualPath).openStream(). But the servlet engine is allowed to implement is in a more efficient way.
    
    Parameters:
    virtualPath - the path to the requested resource (e.g. /philosophy/words-to-avoid.html)
    
    Returns:
    the InputStream that can be used to read the resource or null if the resource cannot be found
    Since:
    
    2.1
    
    See Also:
    getResource(java.lang.String), URL.openStream()
  - getRequestDispatcher
```
RequestDispatcher getRequestDispatcher(java.lang.String UriPath)
```
    Returns a RequestDispatcher to forward requests or include responses from another (active) resource. Some resources can also be accessed by the getResource method.
    
    Parameters:
    UriPath - the path to another (active) resource (e.g. /servlet/OtherServlet)
    
    Returns:
    an RequestDispatcher for the (active) resource found at UriPath
    Since:
    
    2.1
    
    See Also:
    getResource(java.lang.String)
  - getNamedDispatcher
```
RequestDispatcher getNamedDispatcher(java.lang.String name)
```
    get a dispatcher which wraps the servlet specified by name. Servlet names can be set by the class or within the webapp deployment descriptor or by some other implementation dependant system.
    
    Parameters:
    name - the name of the servlet to wrap
    
    Returns:
    the means of dispatching to the servlet
    Since:
    
    2.2
  - getServlet
```
Servlet getServlet(java.lang.String name)
                   throws ServletException
```
    Deprecated. as of Servlet API 2.1, use RequestDispatchers instead; this now always returns null
    
    Gets a specific servlet by name. The Servlet is guaranteed to accept service requests.
    
    Parameters:
    name - the name of the wanted servlet
    
    Returns:
    null, used to return the servlet or null if not loaded.
    
    Throws:
    
    ServletException - if a servlet related error occured
    Since:
    
    1.0
  - getServlets
```
java.util.Enumeration getServlets()
```
    Deprecated. as of Servlet API 2.1, there is no equivalent now. this Always returns an empty Enumeration.
    
    Gets all servlets
    
    Returns:
    Empty Enumeration, used to return an enumeration containing all loaded servlets including the calling servlet.
    Since:
    
    1.0
  - getServletNames
```
java.util.Enumeration getServletNames()
```
    Deprecated. since 2.1, use a RequestDispatcher instead; now this always returns an empty Enumeration.
    
    Gets all servlet names
    
    Returns:
    Empty Enumeration, used to return an enumeration containing all loaded servlet names including the calling servlet name
    Since:
    
    2.0
  - log
```
void log(java.lang.String message)
```
    Writes a message to the log
    
    Parameters:
    message - the message to write
    Since:
    
    1.0
  - log
```
void log(java.lang.Exception exception,
       java.lang.String message)
```
    Deprecated. Use log(String, Throwable) which is more general.
    
    Writes an exception + message to the log
    
    Parameters:
    exception - the exception
    message - the message
    Since:
    
    2.0
    
    See Also:
    log(java.lang.String, java.lang.Throwable)
  - log
```
void log(java.lang.String message,
       java.lang.Throwable t)
```
    Writes an exception + message to the log
    
    Parameters:
    t - the exception
    message - the message
    Since:
    
    2.1
  - getRealPath
```
java.lang.String getRealPath(java.lang.String virtualPath)
```
    Translates the requested virtual path to the real filesystem path using the servers knowledge of the document root. Use the getResource and getResourceAsStream methods to access the original object in a more abstract way not tied to the filesystem.
    
    Parameters:
    virtualPath - the path to be translated (e.g. /graphics/baby-gnu.png)
    
    Returns:
    the translated real filesystem path or null if the real system path cannot be found
    Since:
    
    1.0
    
    See Also:
    getResource(java.lang.String), getResourceAsStream(java.lang.String)
  - getServerInfo
```
java.lang.String getServerInfo()
```
    A server supplied string containing the server name, version number, etc
    
    Returns:
    the string
    Since:
    
    1.0
  - getInitParameter
```
java.lang.String getInitParameter(java.lang.String name)
```
    get the application initialization parameter associated with the name. The application init parameters are set in the webapp deployment descriptor or in some other implementation defined way.
    
    Parameters:
    name - the name of the init parameter
    
    Returns:
    value the value of the init parameter
    Since:
    
    2.2
  - getInitParameterNames
```
java.util.Enumeration getInitParameterNames()
```
    get a list of the init parameter names.
    
    Returns:
    the list of the init parameter names as defined in the webapp DD.
    Since:
    
    2.2
  - setInitParameter
```
boolean setInitParameter(java.lang.String name,
                       java.lang.String value)
```
    Sets the specified initialization parameter on this context. This can only be done during web application startup by the container or a container initializer.
    
    Returns:
    true on success
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - getAttribute
```
java.lang.Object getAttribute(java.lang.String name)
```
    Gets the value of a named attribute
    
    Parameters:
    name - the name of the attribute
    
    Returns:
    the value of the attribute or null if there is no attribute with this name
    Since:
    
    1.0
  - getAttributeNames
```
java.util.Enumeration getAttributeNames()
```
    Gets an enumeration containing all the attribute names
    
    Returns:
    The enumeration containing all the attribute names
    Since:
    
    2.1
  - setAttribute
```
void setAttribute(java.lang.String name,
                java.lang.Object object)
```
    Puts a named object into the ServletContext. Can be used to communicate with other servlets in this ServletContext. The names used must follow the conventions used for naming java packages.
    
    Parameters:
    name - - which is used to refer to this object
    object - - which should be returned when somebody calls getAttribute(name)
    Since:
    
    2.1
    
    See Also:
    getAttribute(java.lang.String)
  - removeAttribute
```
void removeAttribute(java.lang.String name)
```
    Removes the named object from the ServletContext
    
    Parameters:
    name - The name which was used to set the object with setObject
    Since:
    
    2.1
  - getServletContextName
```
java.lang.String getServletContextName()
```
    Get the Servlet Context Name
    
    Returns:
    Name of the web-app or null if the context has no name.
    Since:
    
    2.3
  - addServlet
```
ServletRegistration.Dynamic addServlet(java.lang.String servletName,
                                     java.lang.String className)
```
    Adds the servlet with the specified name and class to this context. This can only be done during web application startup by the container or a container initializer.
    
    Parameters:
    servletName - the servlet name
    className - class name of the servlet
    
    Returns:
    a registration object that can be used for configuration
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - addServlet
```
ServletRegistration.Dynamic addServlet(java.lang.String servletName,
                                     Servlet servlet)
```
    Adds the servlet with the specified name to this context. This can only be done during web application startup by the container or a container initializer.
    
    Parameters:
    servletName - the servlet name
    servlet - the servlet
    
    Returns:
    a registration object that can be used for configuration
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - addServlet
```
ServletRegistration.Dynamic addServlet(java.lang.String servletName,
                                     java.lang.Class<? extends Servlet> t)
```
    Adds the servlet with the specified name and class to this context. This can only be done during web application startup by the container or a container initializer.
    
    Parameters:
    servletName - the servlet name
    t - class of the servlet
    
    Returns:
    a registration object that can be used for configuration
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - createServlet
```
<T extends Servlet> T createServlet(java.lang.Class<T> t)
                                throws ServletException
```
    Instantiates the specified servlet class. The given class must have a zero-arg constructor.
    
    Parameters:
    t - class of the servlet
    
    Throws:
    
    ServletException
    Since:
    
    3.0
  - getServletRegistration
```
ServletRegistration getServletRegistration(java.lang.String servletName)
```
    Returns the servlet registration corresponding to the servlet with the specified name.
    
    Parameters:
    servletName - the servlet name
    Since:
    
    3.0
  - getServletRegistrations
```
java.util.Map<java.lang.String,? extends Registration> getServletRegistrations()
```
    Returns a map of servlet names to registrations for all servlets in this context.
    
    Since:
    
    3.0
  - addFilter
```
FilterRegistration.Dynamic addFilter(java.lang.String filterName,
                                   java.lang.String className)
```
    Adds the filter with the specified name and class to this context. This can only be done during web application startup by the container or a container initializer.
    
    Parameters:
    filterName - the filter name
    className - class name of the filter
    
    Returns:
    a registration object that can be used for configuration
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - addFilter
```
FilterRegistration.Dynamic addFilter(java.lang.String filterName,
                                   Filter filter)
```
    Adds the filter with the specified name to this context. This can only be done during web application startup by the container or a container initializer.
    
    Parameters:
    filterName - the filter name
    filter - the filter
    
    Returns:
    a registration object that can be used for configuration
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - addFilter
```
FilterRegistration.Dynamic addFilter(java.lang.String filterName,
                                   java.lang.Class<? extends Filter> t)
```
    Adds the filter with the specified name and class to this context. This can only be done during web application startup by the container or a container initializer.
    
    Parameters:
    filterName - the filter name
    t - class of the filter
    
    Returns:
    a registration object that can be used for configuration
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
    
    See Also:
    ServletContainerInitializer
  - createFilter
```
<T extends Filter> T createFilter(java.lang.Class<T> t)
                              throws ServletException
```
    Instantiates the specified filter class. The given class must have a zero-arg constructor.
    
    Parameters:
    t - class of the servlet
    
    Throws:
    
    ServletException
    Since:
    
    3.0
  - getFilterRegistration
```
FilterRegistration getFilterRegistration(java.lang.String filterName)
```
    Returns the servlet registration corresponding to the servlet with the specified name.
    
    Parameters:
    servletName - the servlet name
    Since:
    
    3.0
  - getFilterRegistrations
```
java.util.Map<java.lang.String,? extends FilterRegistration> getFilterRegistrations()
```
    Returns a map of filter names to registrations for all filters in this context.
    
    Since:
    
    3.0
  - getSessionCookieConfig
```
SessionCookieConfig getSessionCookieConfig()
```
    Returns the configuration object for configuring properties of session tracking cookies in this context.
    
    Since:
    
    3.0
  - setSessionTrackingModes
```
void setSessionTrackingModes(java.util.Set<SessionTrackingMode> set)
```
    Sets the session tracking modes for this context.
    
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
  - getDefaultSessionTrackingModes
```
java.util.Set<SessionTrackingMode> getDefaultSessionTrackingModes()
```
    Returns the default session tracking modes for this context.
    
    Since:
    
    3.0
  - getEffectiveSessionTrackingModes
```
java.util.Set<SessionTrackingMode> getEffectiveSessionTrackingModes()
```
    Returns the current session tracking modes for this context.
    
    Since:
    
    3.0
  - addListener
```
void addListener(java.lang.String className)
```
    Adds the listener with the specified class name to this context. The listener must implement at least one of the following interfaces:
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
  - addListener
```
void addListener(java.util.EventListener listener)
```
    Adds the specified listener to this context. The listener must implement at least one of the following interfaces:
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
  - addListener
```
void addListener(java.lang.Class<? extends java.util.EventListener> t)
```
    Adds the listener with the specified class to this context. The listener must implement at least one of the following interfaces:
    Throws:
    
    java.lang.IllegalStateException - if the context is already initialized
    Since:
    
    3.0
  - createListener
```
<T extends java.util.EventListener> T createListener(java.lang.Class<T> listenerClass)
                                                 throws ServletException
```
    Instantiates the specified listener class. The given class must have a zero-arg constructor and implement at least one of the following interfaces:
    Parameters:
    t - class of the servlet
    
    Throws:
    
    ServletException
    Since:
    
    3.0
  - getJspConfigDescriptor
```
JspConfigDescriptor getJspConfigDescriptor()
```
    Returns the JSP configuration from the jsp-config elements in the web.xml and/or web-fragment.xml descriptors for this context.
    
    Since:
    
    3.0
  - getClassLoader
```
java.lang.ClassLoader getClassLoader()
```
    Returns the classloader used by this context to load application classes.
    
    Since:
    
    3.0
  - declareRoles
```
void declareRoles(java.lang.String... roleNames)
```
    Declare role names for #isUserInRole.
    
    Since:
    
    3.0

Interface ServletContext

Field Summary

Method Summary

Field Detail

TEMPDIR

ORDERED_LIBS

Method Detail

getContextPath

getContext

getMajorVersion

getMinorVersion

getEffectiveMajorVersion

getEffectiveMinorVersion

getMimeType

getResourcePaths

getResource

getResourceAsStream

getRequestDispatcher

getNamedDispatcher

getServlet

getServlets

getServletNames

log

log

log

getRealPath

getServerInfo

getInitParameter

getInitParameterNames

setInitParameter

getAttribute

getAttributeNames

setAttribute

removeAttribute

getServletContextName

addServlet

addServlet

addServlet

createServlet

getServletRegistration

getServletRegistrations

addFilter

addFilter

addFilter

createFilter

getFilterRegistration

getFilterRegistrations

getSessionCookieConfig

setSessionTrackingModes

getDefaultSessionTrackingModes

getEffectiveSessionTrackingModes

addListener

addListener

addListener

createListener

getJspConfigDescriptor

getClassLoader

declareRoles