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Interface MLetMBean

All Known Implementing Classes:: MLet, PrivateMLet

@Deprecated(since="20", forRemoval=true) public interface MLetMBean

Deprecated, for removal: This API element is subject to removal in a future version.

This API is part of Management Applets (m-lets), which is a legacy feature that allows loading of remote MBeans. This feature is not usable without a Security Manager, which is deprecated and subject to removal in a future release. Consequently, this API is also deprecated and subject to removal. There is no replacement.

Exposes the remote management interface of the MLet MBean.

Since:: 1.5

Method Summary

Modifier and Type	Method	Description
`void`	`addURL(String url)`	Deprecated, for removal: This API element is subject to removal in a future version. Appends the specified URL to the list of URLs to search for classes and resources.
`void`	`addURL(URL url)`	Deprecated, for removal: This API element is subject to removal in a future version. Appends the specified URL to the list of URLs to search for classes and resources.
`String`	`getLibraryDirectory()`	Deprecated, for removal: This API element is subject to removal in a future version. Gets the current directory used by the library loader for storing native libraries before they are loaded into memory.
`Set<Object>`	`getMBeansFromURL(String url)`	Deprecated, for removal: This API element is subject to removal in a future version. Loads a text file containing MLET tags that define the MBeans to be added to the MBean server.
`Set<Object>`	`getMBeansFromURL(URL url)`	Deprecated, for removal: This API element is subject to removal in a future version. Loads a text file containing MLET tags that define the MBeans to be added to the MBean server.
`URL`	`getResource(String name)`	Deprecated, for removal: This API element is subject to removal in a future version. Finds the resource with the given name.
`InputStream`	`getResourceAsStream(String name)`	Deprecated, for removal: This API element is subject to removal in a future version. Returns an input stream for reading the specified resource.
`Enumeration<URL>`	`getResources(String name)`	Deprecated, for removal: This API element is subject to removal in a future version. Finds all the resources with the given name.
`URL[]`	`getURLs()`	Deprecated, for removal: This API element is subject to removal in a future version. Returns the search path of URLs for loading classes and resources.
`void`	`setLibraryDirectory(String libdir)`	Deprecated, for removal: This API element is subject to removal in a future version. Sets the directory used by the library loader for storing native libraries before they are loaded into memory.

Method Details

getMBeansFromURL

Set<Object> getMBeansFromURL(String url) throws ServiceNotFoundException

Deprecated, for removal: This API element is subject to removal in a future version.

Loads a text file containing MLET tags that define the MBeans to be added to the MBean server. The location of the text file is specified by a URL. The text file is read using the UTF-8 encoding. The MBeans specified in the MLET file will be instantiated and registered in the MBean server.

Parameters:: url - The URL of the text file to be loaded as String object.
Returns:: A set containing one entry per MLET tag in the m-let text file loaded. Each entry specifies either the ObjectInstance for the created MBean, or a throwable object (that is, an error or an exception) if the MBean could not be created.
Throws:: ServiceNotFoundException - One of the following errors has occurred: The m-let text file does not contain an MLET tag, the m-let text file is not found, a mandatory attribute of the MLET tag is not specified, the value of url is malformed.

getMBeansFromURL

Set<Object> getMBeansFromURL(URL url) throws ServiceNotFoundException

Deprecated, for removal: This API element is subject to removal in a future version.

Parameters:: url - The URL of the text file to be loaded as URL object.
Returns:: A set containing one entry per MLET tag in the m-let text file loaded. Each entry specifies either the ObjectInstance for the created MBean, or a throwable object (that is, an error or an exception) if the MBean could not be created.
Throws:: ServiceNotFoundException - One of the following errors has occurred: The m-let text file does not contain an MLET tag, the m-let text file is not found, a mandatory attribute of the MLET tag is not specified, the value of url is null.

addURL

void addURL(URL url)

Deprecated, for removal: This API element is subject to removal in a future version.

Appends the specified URL to the list of URLs to search for classes and resources.

Parameters:: url - the URL to add.

addURL

void addURL(String url) throws ServiceNotFoundException

Deprecated, for removal: This API element is subject to removal in a future version.

Appends the specified URL to the list of URLs to search for classes and resources.

Parameters:: url - the URL to add.
Throws:: ServiceNotFoundException - The specified URL is malformed.

getURLs

URL[] getURLs()

Deprecated, for removal: This API element is subject to removal in a future version.

Returns the search path of URLs for loading classes and resources. This includes the original list of URLs specified to the constructor, along with any URLs subsequently appended by the addURL() method.

Returns:: the list of URLs.

getResource

URL getResource(String name)

Deprecated, for removal: This API element is subject to removal in a future version.

Finds the resource with the given name. A resource is some data (images, audio, text, etc) that can be accessed by class code in a way that is independent of the location of the code. The name of a resource is a "/"-separated path name that identifies the resource.

Parameters:: name - The resource name
Returns:: An URL for reading the resource, or null if the resource could not be found or the caller doesn't have adequate privileges to get the resource.

getResourceAsStream

InputStream getResourceAsStream(String name)

Deprecated, for removal: This API element is subject to removal in a future version.

Returns an input stream for reading the specified resource. The search order is described in the documentation for getResource(String).

Parameters:: name - The resource name
Returns:: An input stream for reading the resource, or null if the resource could not be found

getResources

Enumeration<URL> getResources(String name) throws IOException

Deprecated, for removal: This API element is subject to removal in a future version.

Finds all the resources with the given name. A resource is some data (images, audio, text, etc) that can be accessed by class code in a way that is independent of the location of the code. The name of a resource is a "/"-separated path name that identifies the resource.

Parameters:: name - The resource name.
Returns:: An enumeration of URL to the resource. If no resources could be found, the enumeration will be empty. Resources that cannot be accessed will not be in the enumeration.
Throws:: IOException - if an I/O exception occurs when searching for resources.

getLibraryDirectory

String getLibraryDirectory()

Deprecated, for removal: This API element is subject to removal in a future version.

Gets the current directory used by the library loader for storing native libraries before they are loaded into memory.

Returns:

The current directory used by the library loader.

Throws:

UnsupportedOperationException - if this implementation does not support storing native libraries in this way.

See Also:

setLibraryDirectory

void setLibraryDirectory(String libdir)

Deprecated, for removal: This API element is subject to removal in a future version.

Sets the directory used by the library loader for storing native libraries before they are loaded into memory.

Parameters:

libdir - The directory used by the library loader.

Throws:

UnsupportedOperationException - if this implementation does not support storing native libraries in this way.

See Also:

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.management/javax/management/loading/MLetMBean.html