WARDirContext (Apache Tomcat 7.0.96 API Documentation)

org.apache.naming.resources

## Class WARDirContext

- java.lang.Object
- - org.apache.naming.resources.BaseDirContext
  - - org.apache.naming.resources.WARDirContext

- All Implemented Interfaces:
    javax.naming.Context, javax.naming.directory.DirContext

      public class WARDirContext
      extends BaseDirContext

  WAR Directory Context implementation.
  Author:
    Remy Maucherat

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `protected static class` | `WARDirContext.Entry` Entries structure.
    `protected class` | `WARDirContext.WARResource` This specialized resource implementation avoids opening the IputStream to the WAR right away.

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected java.util.zip.ZipFile` | `base` The WAR file.
    `protected WARDirContext.Entry` | `entries` WAR entries.

    - ### Fields inherited from class org.apache.naming.resources.BaseDirContext

      `aliases, altDirContexts, cached, cacheMaxSize, cacheObjectMaxSize, cacheTTL, docBase, env, nameParser, sm`

    - ### Fields inherited from interface javax.naming.directory.DirContext

      `ADD_ATTRIBUTE, REMOVE_ATTRIBUTE, REPLACE_ATTRIBUTE`

    - ### Fields inherited from interface javax.naming.Context

      `APPLET, AUTHORITATIVE, BATCHSIZE, DNS_URL, INITIAL_CONTEXT_FACTORY, LANGUAGE, OBJECT_FACTORIES, PROVIDER_URL, REFERRAL, SECURITY_AUTHENTICATION, SECURITY_CREDENTIALS, SECURITY_PRINCIPAL, SECURITY_PROTOCOL, STATE_FACTORIES, URL_PKG_PREFIXES`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `` | `WARDirContext()` Builds a WAR directory context using the given environment.
    `` | `WARDirContext(java.util.Hashtable<java.lang.String,java.lang.Object> env)` Builds a WAR directory context using the given environment.
    `protected` | `WARDirContext(java.util.zip.ZipFile base, WARDirContext.Entry entries)` Constructor used for returning fake sub-contexts or for accessing META-INF/resources locations in bundled JAR files.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `bind(java.lang.String name, java.lang.Object obj, javax.naming.directory.Attributes attrs)` Binds a name to an object, along with associated attributes.
    `javax.naming.directory.DirContext` | `createSubcontext(java.lang.String name, javax.naming.directory.Attributes attrs)` Creates and binds a new context, along with associated attributes.
    `void` | `destroySubcontext(java.lang.String name)` Destroys the named context and removes it from the namespace.
    `protected javax.naming.directory.Attributes` | `doGetAttributes(java.lang.String name, java.lang.String[] attrIds)` Retrieves selected attributes associated with a named object.
    `protected java.lang.String` | `doGetRealPath(java.lang.String path)` Return the real path for a given virtual path, if possible; otherwise return `null`.
    `protected java.util.List<NamingEntry>` | `doListBindings(java.lang.String strName)` Enumerates the names bound in the named context, along with the objects bound to them.
    `protected java.lang.Object` | `doLookup(java.lang.String strName)` Retrieves the named object.
    `javax.naming.directory.Attributes` | `getAttributes(javax.naming.Name name, java.lang.String[] attrIds)` Retrieves all of the attributes associated with a named object.
    `java.lang.String` | `getNameInNamespace()` Retrieves the full name of this context within its own namespace.
    `javax.naming.directory.DirContext` | `getSchema(java.lang.String name)` Retrieves the schema associated with the named object.
    `javax.naming.directory.DirContext` | `getSchemaClassDefinition(java.lang.String name)` Retrieves a context containing the schema objects of the named object's class definitions.
    `protected java.util.ArrayList<NamingEntry>` | `list(WARDirContext.Entry entry)` List children as objects.
    `protected void` | `loadEntries()` Constructs a tree of the entries contained in a WAR file.
    `java.lang.Object` | `lookupLink(java.lang.String name)` Retrieves the named object, following links except for the terminal atomic component of the name.
    `void` | `modifyAttributes(java.lang.String name, int mod_op, javax.naming.directory.Attributes attrs)` Modifies the attributes associated with a named object.
    `void` | `modifyAttributes(java.lang.String name, javax.naming.directory.ModificationItem[] mods)` Modifies the attributes associated with a named object using an an ordered list of modifications.
    `protected java.lang.String` | `normalize(java.util.zip.ZipEntry entry)` Normalize the name of an entry read from the Zip.
    `void` | `rebind(java.lang.String name, java.lang.Object obj, javax.naming.directory.Attributes attrs)` Binds a name to an object, along with associated attributes, overwriting any existing binding.
    `void` | `release()` Release any resources allocated for this directory context.
    `void` | `rename(java.lang.String oldName, java.lang.String newName)` Binds a new name to the object bound to an old name, and unbinds the old name.
    `javax.naming.NamingEnumeration<javax.naming.directory.SearchResult>` | `search(java.lang.String name, javax.naming.directory.Attributes matchingAttributes)` Searches in a single context for objects that contain a specified set of attributes.
    `javax.naming.NamingEnumeration<javax.naming.directory.SearchResult>` | `search(java.lang.String name, javax.naming.directory.Attributes matchingAttributes, java.lang.String[] attributesToReturn)` Searches in a single context for objects that contain a specified set of attributes, and retrieves selected attributes.
    `javax.naming.NamingEnumeration<javax.naming.directory.SearchResult>` | `search(java.lang.String name, java.lang.String filterExpr, java.lang.Object[] filterArgs, javax.naming.directory.SearchControls cons)` Searches in the named context or object for entries that satisfy the given search filter.
    `javax.naming.NamingEnumeration<javax.naming.directory.SearchResult>` | `search(java.lang.String name, java.lang.String filter, javax.naming.directory.SearchControls cons)` Searches in the named context or object for entries that satisfy the given search filter.
    `void` | `setDocBase(java.lang.String docBase)` Set the document root.
    `protected WARDirContext.Entry` | `treeLookup(javax.naming.Name name)` Entry tree lookup.
    `void` | `unbind(java.lang.String name)` Unbinds the named object.

    - ### Methods inherited from class org.apache.naming.resources.BaseDirContext

      `addAlias, addAltDirContext, addResourcesJar, addToEnvironment, allocate, bind, bind, bind, close, composeName, composeName, createSubcontext, createSubcontext, createSubcontext, destroySubcontext, getAliases, getAttributes, getAttributes, getAttributes, getCacheMaxSize, getCacheObjectMaxSize, getCacheTTL, getDocBase, getEnvironment, getNameParser, getNameParser, getRealPath, getSchema, getSchemaClassDefinition, isCached, list, list, listBindings, listBindings, lookup, lookup, lookupLink, modifyAttributes, modifyAttributes, rebind, rebind, rebind, removeAlias, removeFromEnvironment, rename, search, search, search, search, setAliases, setCached, setCacheMaxSize, setCacheObjectMaxSize, setCacheTTL, unbind`

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

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

- - ### Field Detail

    - #### base

          protected java.util.zip.ZipFile base

      The WAR file.

    - #### entries

          protected WARDirContext.Entry entries

      WAR entries.

  - ### Constructor Detail

    - #### WARDirContext

          public WARDirContext()

      Builds a WAR directory context using the given environment.

    - #### WARDirContext

          public WARDirContext(java.util.Hashtable<java.lang.String,java.lang.Object> env)

      Builds a WAR directory context using the given environment.

    - #### WARDirContext

          protected WARDirContext(java.util.zip.ZipFile base,
                       WARDirContext.Entry entries)

      Constructor used for returning fake sub-contexts or for accessing META-INF/resources locations in bundled JAR files.

  - ### Method Detail

    - #### setDocBase

          public void setDocBase(java.lang.String docBase)

      Set the document root.
      Overrides:
        `setDocBase` in class `BaseDirContext`
      Parameters:
        `docBase` - The new document root
      Throws:
        `java.lang.IllegalArgumentException` - if the specified value is not supported by this implementation
        `java.lang.IllegalArgumentException` - if this would create a malformed URL

    - #### release

          public void release()

      Release any resources allocated for this directory context.
      Overrides:
        `release` in class `BaseDirContext`

    - #### doGetRealPath

          protected java.lang.String doGetRealPath(java.lang.String path)

      Return the real path for a given virtual path, if possible; otherwise return `null`.
      Specified by:
        `doGetRealPath` in class `BaseDirContext`
      Parameters:
        `path` - The path to the desired resource

    - #### doLookup

          protected java.lang.Object doLookup(java.lang.String strName)

      Retrieves the named object.
      Specified by:
        `doLookup` in class `BaseDirContext`
      Parameters:
        `strName` - the name of the object to look up
      Returns:
        the object bound to name

    - #### unbind

          public void unbind(java.lang.String name)
                      throws javax.naming.NamingException

      Unbinds the named object. This method is not supported in this implementation
      Specified by:
        `unbind` in interface `javax.naming.Context`
      Specified by:
        `unbind` in class `BaseDirContext`
      Parameters:
        `name` - the name to bind; may not be empty
      Throws:
        `javax.naming.OperationNotSupportedException` - for this implementation
        `javax.naming.NameNotFoundException` - if an intermediate context does not exist
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### rename

          public void rename(java.lang.String oldName,
                    java.lang.String newName)
                      throws javax.naming.NamingException

      Binds a new name to the object bound to an old name, and unbinds the old name. Both names are relative to this context. Any attributes associated with the old name become associated with the new name. Intermediate contexts of the old name are not changed.
      Specified by:
        `rename` in interface `javax.naming.Context`
      Specified by:
        `rename` in class `BaseDirContext`
      Parameters:
        `oldName` - the name of the existing binding; may not be empty
        `newName` - the name of the new binding; may not be empty
      Throws:
        `javax.naming.NameAlreadyBoundException` - if newName is already bound
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### doListBindings

          protected java.util.List<NamingEntry> doListBindings(java.lang.String strName)
                                                        throws javax.naming.NamingException

      Enumerates the names bound in the named context, along with the objects bound to them. The contents of any subcontexts are not included.

      If a binding is added to or removed from this context, its effect on an enumeration previously returned is undefined.

      Specified by:
        `doListBindings` in class `BaseDirContext`
      Parameters:
        `strName` - the name of the context to list
      Returns:
        an enumeration of the bindings in this context. Each element of the enumeration is of type Binding.
      Throws:
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### destroySubcontext

          public void destroySubcontext(java.lang.String name)
                                 throws javax.naming.NamingException

      Destroys the named context and removes it from the namespace. This method is not supported in this implementation
      Specified by:
        `destroySubcontext` in interface `javax.naming.Context`
      Specified by:
        `destroySubcontext` in class `BaseDirContext`
      Parameters:
        `name` - the name of the context to be destroyed; may not be empty
      Throws:
        `javax.naming.OperationNotSupportedException` - for this implementation
        `javax.naming.NamingException`

    - #### lookupLink

          public java.lang.Object lookupLink(java.lang.String name)
                                      throws javax.naming.NamingException

      Retrieves the named object, following links except for the terminal atomic component of the name. If the object bound to name is not a link, returns the object itself.
      Specified by:
        `lookupLink` in interface `javax.naming.Context`
      Specified by:
        `lookupLink` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object to look up
      Returns:
        the object bound to name, not following the terminal link (if any).
      Throws:
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### getNameInNamespace

          public java.lang.String getNameInNamespace()
                                              throws javax.naming.NamingException

      Retrieves the full name of this context within its own namespace.

      Many naming services have a notion of a "full name" for objects in their respective namespaces. For example, an LDAP entry has a distinguished name, and a DNS record has a fully qualified name. This method allows the client application to retrieve this name. The string returned by this method is not a JNDI composite name and should not be passed directly to context methods. In naming systems for which the notion of full name does not make sense, OperationNotSupportedException is thrown.

      Specified by:
        `getNameInNamespace` in interface `javax.naming.Context`
      Specified by:
        `getNameInNamespace` in class `BaseDirContext`
      Returns:
        this context's name in its own namespace; never null
      Throws:
        `javax.naming.OperationNotSupportedException` - if the naming system does not have the notion of a full name
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### doGetAttributes

          protected javax.naming.directory.Attributes doGetAttributes(java.lang.String name,
                                                          java.lang.String[] attrIds)
                                                               throws javax.naming.NamingException

      Retrieves selected attributes associated with a named object. See the class description regarding attribute models, attribute type names, and operational attributes.
      Specified by:
        `doGetAttributes` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object from which to retrieve attributes
        `attrIds` - the identifiers of the attributes to retrieve. null indicates that all attributes should be retrieved; an empty array indicates that none should be retrieved
      Returns:
        the requested attributes; never null
      Throws:
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### getAttributes

          public javax.naming.directory.Attributes getAttributes(javax.naming.Name name,
                                                        java.lang.String[] attrIds)
                                                          throws javax.naming.NamingException

      Retrieves all of the attributes associated with a named object.
      Specified by:
        `getAttributes` in interface `javax.naming.directory.DirContext`
      Overrides:
        `getAttributes` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object from which to retrieve attributes
        `attrIds` - the identifiers of the attributes to retrieve. null indicates that all attributes should be retrieved; an empty array indicates that none should be retrieved
      Returns:
        the set of attributes associated with name. Returns an empty attribute set if name has no attributes; never null.
      Throws:
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### modifyAttributes

          public void modifyAttributes(java.lang.String name,
                              int mod_op,
                              javax.naming.directory.Attributes attrs)
                                throws javax.naming.NamingException

      Modifies the attributes associated with a named object. The order of the modifications is not specified. Where possible, the modifications are performed atomically.
      Specified by:
        `modifyAttributes` in interface `javax.naming.directory.DirContext`
      Specified by:
        `modifyAttributes` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object whose attributes will be updated
        `mod_op` - the modification operation, one of: ADD_ATTRIBUTE, REPLACE_ATTRIBUTE, REMOVE_ATTRIBUTE
        `attrs` - the attributes to be used for the modification; may not be null
      Throws:
        `javax.naming.directory.AttributeModificationException` - if the modification cannot be completed successfully
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### modifyAttributes

          public void modifyAttributes(java.lang.String name,
                              javax.naming.directory.ModificationItem[] mods)
                                throws javax.naming.NamingException

      Modifies the attributes associated with a named object using an an ordered list of modifications. The modifications are performed in the order specified. Each modification specifies a modification operation code and an attribute on which to operate. Where possible, the modifications are performed atomically.
      Specified by:
        `modifyAttributes` in interface `javax.naming.directory.DirContext`
      Specified by:
        `modifyAttributes` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object whose attributes will be updated
        `mods` - an ordered sequence of modifications to be performed; may not be null
      Throws:
        `javax.naming.directory.AttributeModificationException` - if the modification cannot be completed successfully
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### bind

          public void bind(java.lang.String name,
                  java.lang.Object obj,
                  javax.naming.directory.Attributes attrs)
                    throws javax.naming.NamingException

      Binds a name to an object, along with associated attributes. If attrs is null, the resulting binding will have the attributes associated with obj if obj is a DirContext, and no attributes otherwise. If attrs is non-null, the resulting binding will have attrs as its attributes; any attributes associated with obj are ignored.
      Specified by:
        `bind` in interface `javax.naming.directory.DirContext`
      Specified by:
        `bind` in class `BaseDirContext`
      Parameters:
        `name` - the name to bind; may not be empty
        `obj` - the object to bind; possibly null
        `attrs` - the attributes to associate with the binding
      Throws:
        `javax.naming.NameAlreadyBoundException` - if name is already bound
        `javax.naming.directory.InvalidAttributesException` - if some "mandatory" attributes of the binding are not supplied
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### rebind

          public void rebind(java.lang.String name,
                    java.lang.Object obj,
                    javax.naming.directory.Attributes attrs)
                      throws javax.naming.NamingException

      Binds a name to an object, along with associated attributes, overwriting any existing binding. If attrs is null and obj is a DirContext, the attributes from obj are used. If attrs is null and obj is not a DirContext, any existing attributes associated with the object already bound in the directory remain unchanged. If attrs is non-null, any existing attributes associated with the object already bound in the directory are removed and attrs is associated with the named object. If obj is a DirContext and attrs is non-null, the attributes of obj are ignored.
      Specified by:
        `rebind` in interface `javax.naming.directory.DirContext`
      Specified by:
        `rebind` in class `BaseDirContext`
      Parameters:
        `name` - the name to bind; may not be empty
        `obj` - the object to bind; possibly null
        `attrs` - the attributes to associate with the binding
      Throws:
        `javax.naming.directory.InvalidAttributesException` - if some "mandatory" attributes of the binding are not supplied
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### createSubcontext

          public javax.naming.directory.DirContext createSubcontext(java.lang.String name,
                                                           javax.naming.directory.Attributes attrs)
                                                             throws javax.naming.NamingException

      Creates and binds a new context, along with associated attributes. This method creates a new subcontext with the given name, binds it in the target context (that named by all but terminal atomic component of the name), and associates the supplied attributes with the newly created object. All intermediate and target contexts must already exist. If attrs is null, this method is equivalent to Context.createSubcontext().
      Specified by:
        `createSubcontext` in interface `javax.naming.directory.DirContext`
      Specified by:
        `createSubcontext` in class `BaseDirContext`
      Parameters:
        `name` - the name of the context to create; may not be empty
        `attrs` - the attributes to associate with the newly created context
      Returns:
        the newly created context
      Throws:
        `javax.naming.NameAlreadyBoundException` - if name is already bound
        `javax.naming.directory.InvalidAttributesException` - if attrs does not contain all the mandatory attributes required for creation
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### getSchema

          public javax.naming.directory.DirContext getSchema(java.lang.String name)
                                                      throws javax.naming.NamingException

      Retrieves the schema associated with the named object. The schema describes rules regarding the structure of the namespace and the attributes stored within it. The schema specifies what types of objects can be added to the directory and where they can be added; what mandatory and optional attributes an object can have. The range of support for schemas is directory-specific.
      Specified by:
        `getSchema` in interface `javax.naming.directory.DirContext`
      Specified by:
        `getSchema` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object whose schema is to be retrieved
      Returns:
        the schema associated with the context; never null
      Throws:
        `javax.naming.OperationNotSupportedException` - if schema not supported
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### getSchemaClassDefinition

          public javax.naming.directory.DirContext getSchemaClassDefinition(java.lang.String name)
                                                                     throws javax.naming.NamingException

      Retrieves a context containing the schema objects of the named object's class definitions.
      Specified by:
        `getSchemaClassDefinition` in interface `javax.naming.directory.DirContext`
      Specified by:
        `getSchemaClassDefinition` in class `BaseDirContext`
      Parameters:
        `name` - the name of the object whose object class definition is to be retrieved
      Returns:
        the DirContext containing the named object's class definitions; never null
      Throws:
        `javax.naming.OperationNotSupportedException` - if schema not supported
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### search

          public javax.naming.NamingEnumeration<javax.naming.directory.SearchResult> search(java.lang.String name,
                                                                                   javax.naming.directory.Attributes matchingAttributes,
                                                                                   java.lang.String[] attributesToReturn)
                                                                                     throws javax.naming.NamingException

      Searches in a single context for objects that contain a specified set of attributes, and retrieves selected attributes. The search is performed using the default SearchControls settings.
      Specified by:
        `search` in interface `javax.naming.directory.DirContext`
      Specified by:
        `search` in class `BaseDirContext`
      Parameters:
        `name` - the name of the context to search
        `matchingAttributes` - the attributes to search for. If empty or null, all objects in the target context are returned.
        `attributesToReturn` - the attributes to return. null indicates that all attributes are to be returned; an empty array indicates that none are to be returned.
      Returns:
        a non-null enumeration of SearchResult objects. Each SearchResult contains the attributes identified by attributesToReturn and the name of the corresponding object, named relative to the context named by name.
      Throws:
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### search

          public javax.naming.NamingEnumeration<javax.naming.directory.SearchResult> search(java.lang.String name,
                                                                                   javax.naming.directory.Attributes matchingAttributes)
                                                                                     throws javax.naming.NamingException

      Searches in a single context for objects that contain a specified set of attributes. This method returns all the attributes of such objects. It is equivalent to supplying null as the atributesToReturn parameter to the method search(Name, Attributes, String[]).
      Specified by:
        `search` in interface `javax.naming.directory.DirContext`
      Specified by:
        `search` in class `BaseDirContext`
      Parameters:
        `name` - the name of the context to search
        `matchingAttributes` - the attributes to search for. If empty or null, all objects in the target context are returned.
      Returns:
        a non-null enumeration of SearchResult objects. Each SearchResult contains the attributes identified by attributesToReturn and the name of the corresponding object, named relative to the context named by name.
      Throws:
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### search

          public javax.naming.NamingEnumeration<javax.naming.directory.SearchResult> search(java.lang.String name,
                                                                                   java.lang.String filter,
                                                                                   javax.naming.directory.SearchControls cons)
                                                                                     throws javax.naming.NamingException

      Searches in the named context or object for entries that satisfy the given search filter. Performs the search as specified by the search controls.
      Specified by:
        `search` in interface `javax.naming.directory.DirContext`
      Specified by:
        `search` in class `BaseDirContext`
      Parameters:
        `name` - the name of the context or object to search
        `filter` - the filter expression to use for the search; may not be null
        `cons` - the search controls that control the search. If null, the default search controls are used (equivalent to (new SearchControls())).
      Returns:
        an enumeration of SearchResults of the objects that satisfy the filter; never null
      Throws:
        `javax.naming.directory.InvalidSearchFilterException` - if the search filter specified is not supported or understood by the underlying directory
        `javax.naming.directory.InvalidSearchControlsException` - if the search controls contain invalid settings
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### search

          public javax.naming.NamingEnumeration<javax.naming.directory.SearchResult> search(java.lang.String name,
                                                                                   java.lang.String filterExpr,
                                                                                   java.lang.Object[] filterArgs,
                                                                                   javax.naming.directory.SearchControls cons)
                                                                                     throws javax.naming.NamingException

      Searches in the named context or object for entries that satisfy the given search filter. Performs the search as specified by the search controls.
      Specified by:
        `search` in interface `javax.naming.directory.DirContext`
      Specified by:
        `search` in class `BaseDirContext`
      Parameters:
        `name` - the name of the context or object to search
        `filterExpr` - the filter expression to use for the search. The expression may contain variables of the form "{i}" where i is a nonnegative integer. May not be null.
        `filterArgs` - the array of arguments to substitute for the variables in filterExpr. The value of filterArgs[i] will replace each occurrence of "{i}". If null, equivalent to an empty array.
        `cons` - the search controls that control the search. If null, the default search controls are used (equivalent to (new SearchControls())).
      Returns:
        an enumeration of SearchResults of the objects that satisfy the filter; never null
      Throws:
        `java.lang.ArrayIndexOutOfBoundsException` - if filterExpr contains {i} expressions where i is outside the bounds of the array filterArgs
        `javax.naming.directory.InvalidSearchControlsException` - if cons contains invalid settings
        `javax.naming.directory.InvalidSearchFilterException` - if filterExpr with filterArgs represents an invalid search filter
        `javax.naming.NamingException` - if a naming exception is encountered

    - #### normalize

          protected java.lang.String normalize(java.util.zip.ZipEntry entry)

      Normalize the name of an entry read from the Zip.

    - #### loadEntries

          protected void loadEntries()

      Constructs a tree of the entries contained in a WAR file.

    - #### treeLookup

          protected WARDirContext.Entry treeLookup(javax.naming.Name name)

      Entry tree lookup.

    - #### list

          protected java.util.ArrayList<NamingEntry> list(WARDirContext.Entry entry)

      List children as objects.

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