Provider (Java Platform SE 8 )
Keywords: java.security.Provider class
Date: 2020-03-26

compact1, compact2, compact3
java.security

## Class Provider

- java.lang.Object
- - java.util.Dictionary<K,V>
  - - java.util.Hashtable<Object,Object>
    - - java.util.Properties
      - - java.security.Provider

- All Implemented Interfaces:
    Serializable, Cloneable, Map<Object,Object>
  Direct Known Subclasses:
    AuthProvider

      public abstract class Provider
      extends Properties

  This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security. Services that a provider may implement include:
  - Algorithms (such as DSA, RSA, MD5 or SHA-1).
  - Key generation, conversion, and management facilities (such as for algorithm-specific keys).

  Each provider has a name and a version number, and is configured in each runtime it is installed in.

  See The Provider Class in the "Java Cryptography Architecture API Specification & Reference" for information about how a particular type of provider, the cryptographic service provider, works and is installed. However, please note that a provider can be used to implement any security service in Java that uses a pluggable architecture with a choice of implementations that fit underneath.

  Some provider implementations may encounter unrecoverable internal errors during their operation, for example a failure to communicate with a security token. A `ProviderException` should be used to indicate such errors.

  The service type `Provider` is reserved for use by the security framework. Services of this type cannot be added, removed, or modified by applications. The following attributes are automatically placed in each Provider object:

  Attributes Automatically Placed in a Provider Object
  Name | Value
  --- | ---
  `Provider.id name` | `String.valueOf(provider.getName())`
  `Provider.id version` | `String.valueOf(provider.getVersion())`
  `Provider.id info` | `String.valueOf(provider.getInfo())`
  `Provider.id className` | `provider.getClass().getName()`

  See Also:
    Serialized Form

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `static class` | `Provider.Service` The description of a security service.

  - ### Field Summary

    - ### Fields inherited from class java.util.Properties

      `defaults`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `Provider(String name, double version, String info)` Constructs a provider with the specified name, version number, and information.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `clear()` Clears this provider so that it no longer contains the properties used to look up facilities implemented by the provider.
    `Object` | `compute(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)` Attempts to compute a mapping for the specified key and its current mapped value (or `null` if there is no current mapping).
    `Object` | `computeIfAbsent(Object key, Function<? super Object,? extends Object> mappingFunction)` If the specified key is not already associated with a value (or is mapped to `null`), attempts to compute its value using the given mapping function and enters it into this map unless `null`.
    `Object` | `computeIfPresent(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)` If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.
    `Enumeration<Object>` | `elements()` Returns an enumeration of the values in this hashtable.
    `Set<Map.Entry<Object,Object>>` | `entrySet()` Returns an unmodifiable Set view of the property entries contained in this Provider.
    `void` | `forEach(BiConsumer<? super Object,? super Object> action)` Performs the given action for each entry in this map until all entries have been processed or the action throws an exception.
    `Object` | `get(Object key)` Returns the value to which the specified key is mapped, or `null` if this map contains no mapping for the key.
    `String` | `getInfo()` Returns a human-readable description of the provider and its services.
    `String` | `getName()` Returns the name of this provider.
    `Object` | `getOrDefault(Object key, Object defaultValue)` Returns the value to which the specified key is mapped, or `defaultValue` if this map contains no mapping for the key.
    `String` | `getProperty(String key)` Searches for the property with the specified key in this property list.
    `Provider.Service` | `getService(String type, String algorithm)` Get the service describing this Provider's implementation of the specified type of this algorithm or alias.
    `Set<Provider.Service>` | `getServices()` Get an unmodifiable Set of all services supported by this Provider.
    `double` | `getVersion()` Returns the version number for this provider.
    `Enumeration<Object>` | `keys()` Returns an enumeration of the keys in this hashtable.
    `Set<Object>` | `keySet()` Returns an unmodifiable Set view of the property keys contained in this provider.
    `void` | `load(InputStream inStream)` Reads a property list (key and element pairs) from the input stream.
    `Object` | `merge(Object key, Object value, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)` If the specified key is not already associated with a value or is associated with null, associates it with the given value.
    `Object` | `put(Object key, Object value)` Sets the `key` property to have the specified `value`.
    `void` | `putAll(Map<?,?> t)` Copies all of the mappings from the specified Map to this provider.
    `Object` | `putIfAbsent(Object key, Object value)` If the specified key is not already associated with a value (or is mapped to `null`) associates it with the given value and returns `null`, else returns the current value.
    `protected void` | `putService(Provider.Service s)` Add a service.
    `Object` | `remove(Object key)` Removes the `key` property (and its corresponding `value`).
    `boolean` | `remove(Object key, Object value)` Removes the entry for the specified key only if it is currently mapped to the specified value.
    `protected void` | `removeService(Provider.Service s)` Remove a service previously added using `putService()`.
    `Object` | `replace(Object key, Object value)` Replaces the entry for the specified key only if it is currently mapped to some value.
    `boolean` | `replace(Object key, Object oldValue, Object newValue)` Replaces the entry for the specified key only if currently mapped to the specified value.
    `void` | `replaceAll(BiFunction<? super Object,? super Object,? extends Object> function)` Replaces each entry's value with the result of invoking the given function on that entry, in the order entries are returned by an entry set iterator, until all entries have been processed or the function throws an exception.
    `String` | `toString()` Returns a string with the name and the version number of this provider.
    `Collection<Object>` | `values()` Returns an unmodifiable Collection view of the property values contained in this provider.

    - ### Methods inherited from class java.util.Properties

      `getProperty, list, list, load, loadFromXML, propertyNames, save, setProperty, store, store, storeToXML, storeToXML, stringPropertyNames`

    - ### Methods inherited from class java.util.Hashtable

      `clone, contains, containsKey, containsValue, equals, hashCode, isEmpty, rehash, size`

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

      `finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### Provider

          protected Provider(String name,
                             double version,
                             String info)

      Constructs a provider with the specified name, version number, and information.
      Parameters:
        `name` - the provider name.
        `version` - the provider version number.
        `info` - a description of the provider and its services.

  - ### Method Detail

    - #### getName

          public String getName()

      Returns the name of this provider.
      Returns:
        the name of this provider.

    - #### getVersion

          public double getVersion()

      Returns the version number for this provider.
      Returns:
        the version number for this provider.

    - #### getInfo

          public String getInfo()

      Returns a human-readable description of the provider and its services. This may return an HTML page, with relevant links.
      Returns:
        a description of the provider and its services.

    - #### toString

          public String toString()

      Returns a string with the name and the version number of this provider.
      Overrides:
        `toString` in class `Hashtable<Object,Object>`
      Returns:
        the string with the name and the version number for this provider.

    - #### clear

          public void clear()

      Clears this provider so that it no longer contains the properties used to look up facilities implemented by the provider.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"clearProviderProperties."+name` (where `name` is the provider name) to see if it's ok to clear this provider.

      Specified by:
        `clear` in interface `Map<Object,Object>`
      Overrides:
        `clear` in class `Hashtable<Object,Object>`
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to clear this provider
      Since:
        1.2

    - #### load

          public void load(InputStream inStream)
                    throws IOException

      Reads a property list (key and element pairs) from the input stream.
      Overrides:
        `load` in class `Properties`
      Parameters:
        `inStream` - the input stream.
      Throws:
        `IOException` - if an error occurred when reading from the input stream.
      See Also:
        `Properties.load(java.io.Reader)`

    - #### putAll

          public void putAll(Map<?,?> t)

      Copies all of the mappings from the specified Map to this provider. These mappings will replace any properties that this provider had for any of the keys currently in the specified Map.
      Specified by:
        `putAll` in interface `Map<Object,Object>`
      Overrides:
        `putAll` in class `Hashtable<Object,Object>`
      Parameters:
        `t` - mappings to be stored in this map
      Since:
        1.2

    - #### entrySet

          public Set<Map.Entry<Object,Object>> entrySet()

      Returns an unmodifiable Set view of the property entries contained in this Provider.
      Specified by:
        `entrySet` in interface `Map<Object,Object>`
      Overrides:
        `entrySet` in class `Hashtable<Object,Object>`
      Returns:
        a set view of the mappings contained in this map
      Since:
        1.2
      See Also:
        `Map.Entry`

    - #### keySet

          public Set<Object> keySet()

      Returns an unmodifiable Set view of the property keys contained in this provider.
      Specified by:
        `keySet` in interface `Map<Object,Object>`
      Overrides:
        `keySet` in class `Hashtable<Object,Object>`
      Returns:
        a set view of the keys contained in this map
      Since:
        1.2

    - #### values

          public Collection<Object> values()

      Returns an unmodifiable Collection view of the property values contained in this provider.
      Specified by:
        `values` in interface `Map<Object,Object>`
      Overrides:
        `values` in class `Hashtable<Object,Object>`
      Returns:
        a collection view of the values contained in this map
      Since:
        1.2

    - #### put

          public Object put(Object key,
                            Object value)

      Sets the `key` property to have the specified `value`.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"putProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values.

      Specified by:
        `put` in interface `Map<Object,Object>`
      Overrides:
        `put` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - the hashtable key
        `value` - the value
      Returns:
        the previous value of the specified key in this hashtable, or `null` if it did not have one
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values.
      Since:
        1.2
      See Also:
        `Object.equals(Object)`, `Hashtable.get(Object)`

    - #### putIfAbsent

          public Object putIfAbsent(Object key,
                                    Object value)

      If the specified key is not already associated with a value (or is mapped to `null`) associates it with the given value and returns `null`, else returns the current value.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"putProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values.

      Specified by:
        `putIfAbsent` in interface `Map<Object,Object>`
      Overrides:
        `putIfAbsent` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is to be associated
        `value` - value to be associated with the specified key
      Returns:
        the previous value associated with the specified key, or `null` if there was no mapping for the key. (A `null` return can also indicate that the map previously associated `null` with the key, if the implementation supports null values.)
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values.
      Since:
        1.8

    - #### remove

          public Object remove(Object key)

      Removes the `key` property (and its corresponding `value`).

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to remove this provider's properties.

      Specified by:
        `remove` in interface `Map<Object,Object>`
      Overrides:
        `remove` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - the key that needs to be removed
      Returns:
        the value to which the key had been mapped in this hashtable, or `null` if the key did not have a mapping
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to remove this provider's properties.
      Since:
        1.2

    - #### remove

          public boolean remove(Object key,
                                Object value)

      Removes the entry for the specified key only if it is currently mapped to the specified value.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to remove this provider's properties.

      Specified by:
        `remove` in interface `Map<Object,Object>`
      Overrides:
        `remove` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is associated
        `value` - value expected to be associated with the specified key
      Returns:
        `true` if the value was removed
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to remove this provider's properties.
      Since:
        1.8

    - #### replace

          public boolean replace(Object key,
                                 Object oldValue,
                                 Object newValue)

      Replaces the entry for the specified key only if currently mapped to the specified value.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"putProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values.

      Specified by:
        `replace` in interface `Map<Object,Object>`
      Overrides:
        `replace` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is associated
        `oldValue` - value expected to be associated with the specified key
        `newValue` - value to be associated with the specified key
      Returns:
        `true` if the value was replaced
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values.
      Since:
        1.8

    - #### replace

          public Object replace(Object key,
                                Object value)

      Replaces the entry for the specified key only if it is currently mapped to some value.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"putProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values.

      Specified by:
        `replace` in interface `Map<Object,Object>`
      Overrides:
        `replace` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is associated
        `value` - value to be associated with the specified key
      Returns:
        the previous value associated with the specified key, or `null` if there was no mapping for the key. (A `null` return can also indicate that the map previously associated `null` with the key, if the implementation supports null values.)
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values.
      Since:
        1.8

    - #### replaceAll

          public void replaceAll(BiFunction<? super Object,? super Object,? extends Object> function)

      Replaces each entry's value with the result of invoking the given function on that entry, in the order entries are returned by an entry set iterator, until all entries have been processed or the function throws an exception.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the string `"putProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values.

      Specified by:
        `replaceAll` in interface `Map<Object,Object>`
      Overrides:
        `replaceAll` in class `Hashtable<Object,Object>`
      Parameters:
        `function` - the function to apply to each entry
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values.
      Since:
        1.8

    - #### compute

          public Object compute(Object key,
                                BiFunction<? super Object,? super Object,? extends Object> remappingFunction)

      Attempts to compute a mapping for the specified key and its current mapped value (or `null` if there is no current mapping).

      If a security manager is enabled, its `checkSecurityAccess` method is called with the strings `"putProviderProperty."+name` and `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values and remove this provider's properties.

      Specified by:
        `compute` in interface `Map<Object,Object>`
      Overrides:
        `compute` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is to be associated
        `remappingFunction` - the function to compute a value
      Returns:
        the new value associated with the specified key, or null if none
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values or remove properties.
      Since:
        1.8

    - #### computeIfAbsent

          public Object computeIfAbsent(Object key,
                                        Function<? super Object,? extends Object> mappingFunction)

      If the specified key is not already associated with a value (or is mapped to `null`), attempts to compute its value using the given mapping function and enters it into this map unless `null`.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the strings `"putProviderProperty."+name` and `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values and remove this provider's properties.

      Specified by:
        `computeIfAbsent` in interface `Map<Object,Object>`
      Overrides:
        `computeIfAbsent` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is to be associated
        `mappingFunction` - the function to compute a value
      Returns:
        the current (existing or computed) value associated with the specified key, or null if the computed value is null
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values and remove properties.
      Since:
        1.8

    - #### computeIfPresent

          public Object computeIfPresent(Object key,
                                         BiFunction<? super Object,? super Object,? extends Object> remappingFunction)

      If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the strings `"putProviderProperty."+name` and `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values and remove this provider's properties.

      Specified by:
        `computeIfPresent` in interface `Map<Object,Object>`
      Overrides:
        `computeIfPresent` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the specified value is to be associated
        `remappingFunction` - the function to compute a value
      Returns:
        the new value associated with the specified key, or null if none
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values or remove properties.
      Since:
        1.8

    - #### merge

          public Object merge(Object key,
                              Object value,
                              BiFunction<? super Object,? super Object,? extends Object> remappingFunction)

      If the specified key is not already associated with a value or is associated with null, associates it with the given value. Otherwise, replaces the value with the results of the given remapping function, or removes if the result is null. This method may be of use when combining multiple mapped values for a key.

      If a security manager is enabled, its `checkSecurityAccess` method is called with the strings `"putProviderProperty."+name` and `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values and remove this provider's properties.

      Specified by:
        `merge` in interface `Map<Object,Object>`
      Overrides:
        `merge` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - key with which the resulting value is to be associated
        `value` - the non-null value to be merged with the existing value associated with the key or, if no existing value or a null value is associated with the key, to be associated with the key
        `remappingFunction` - the function to recompute a value if present
      Returns:
        the new value associated with the specified key, or null if no value is associated with the key
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values or remove properties.
      Since:
        1.8

    - #### get

          public Object get(Object key)

      Description copied from class: `Hashtable`
      Returns the value to which the specified key is mapped, or `null` if this map contains no mapping for the key.

      More formally, if this map contains a mapping from a key `k` to a value `v` such that `(key.equals(k))`, then this method returns `v`; otherwise it returns `null`. (There can be at most one such mapping.)

      Specified by:
        `get` in interface `Map<Object,Object>`
      Overrides:
        `get` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - the key whose associated value is to be returned
      Returns:
        the value to which the specified key is mapped, or `null` if this map contains no mapping for the key
      See Also:
        `Hashtable.put(Object, Object)`

    - #### getOrDefault

          public Object getOrDefault(Object key,
                                     Object defaultValue)

      Description copied from interface: `Map`
      Returns the value to which the specified key is mapped, or `defaultValue` if this map contains no mapping for the key.
      Specified by:
        `getOrDefault` in interface `Map<Object,Object>`
      Overrides:
        `getOrDefault` in class `Hashtable<Object,Object>`
      Parameters:
        `key` - the key whose associated value is to be returned
        `defaultValue` - the default mapping of the key
      Returns:
        the value to which the specified key is mapped, or `defaultValue` if this map contains no mapping for the key
      Since:
        1.8

    - #### forEach

          public void forEach(BiConsumer<? super Object,? super Object> action)

      Description copied from interface: `Map`
      Performs the given action for each entry in this map until all entries have been processed or the action throws an exception. Unless otherwise specified by the implementing class, actions are performed in the order of entry set iteration (if an iteration order is specified.) Exceptions thrown by the action are relayed to the caller.
      Specified by:
        `forEach` in interface `Map<Object,Object>`
      Overrides:
        `forEach` in class `Hashtable<Object,Object>`
      Parameters:
        `action` - The action to be performed for each entry
      Since:
        1.8

    - #### keys

          public Enumeration<Object> keys()

      Description copied from class: `Hashtable`
      Returns an enumeration of the keys in this hashtable.
      Overrides:
        `keys` in class `Hashtable<Object,Object>`
      Returns:
        an enumeration of the keys in this hashtable.
      See Also:
        `Enumeration`, `Hashtable.elements()`, `Hashtable.keySet()`, `Map`

    - #### elements

          public Enumeration<Object> elements()

      Description copied from class: `Hashtable`
      Returns an enumeration of the values in this hashtable. Use the Enumeration methods on the returned object to fetch the elements sequentially.
      Overrides:
        `elements` in class `Hashtable<Object,Object>`
      Returns:
        an enumeration of the values in this hashtable.
      See Also:
        `Enumeration`, `Hashtable.keys()`, `Hashtable.values()`, `Map`

    - #### getProperty

          public String getProperty(String key)

      Description copied from class: `Properties`
      Searches for the property with the specified key in this property list. If the key is not found in this property list, the default property list, and its defaults, recursively, are then checked. The method returns `null` if the property is not found.
      Overrides:
        `getProperty` in class `Properties`
      Parameters:
        `key` - the property key.
      Returns:
        the value in this property list with the specified key value.
      See Also:
        `Properties.setProperty(java.lang.String, java.lang.String)`, `Properties.defaults`

    - #### getService

          public Provider.Service getService(String type,
                                             String algorithm)

      Get the service describing this Provider's implementation of the specified type of this algorithm or alias. If no such implementation exists, this method returns null. If there are two matching services, one added to this provider using `putService()` and one added via `put()`, the service added via `putService()` is returned.
      Parameters:
        `type` - the type of `service` requested (for example, `MessageDigest`)
        `algorithm` - the case insensitive algorithm name (or alternate alias) of the service requested (for example, `SHA-1`)
      Returns:
        the service describing this Provider's matching service or null if no such service exists
      Throws:
        `NullPointerException` - if type or algorithm is null
      Since:
        1.5

    - #### getServices

          public Set<Provider.Service> getServices()

      Get an unmodifiable Set of all services supported by this Provider.
      Returns:
        an unmodifiable Set of all services supported by this Provider
      Since:
        1.5

    - #### putService

          protected void putService(Provider.Service s)

      Add a service. If a service of the same type with the same algorithm name exists and it was added using `putService()`, it is replaced by the new service. This method also places information about this service in the provider's Hashtable values in the format described in the Java Cryptography Architecture API Specification & Reference .

      Also, if there is a security manager, its `checkSecurityAccess` method is called with the string `"putProviderProperty."+name`, where `name` is the provider name, to see if it's ok to set this provider's property values. If the default implementation of `checkSecurityAccess` is used (that is, that method is not overriden), then this results in a call to the security manager's `checkPermission` method with a `SecurityPermission("putProviderProperty."+name)` permission.

      Parameters:
        `s` - the Service to add
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to set property values.
        `NullPointerException` - if s is null
      Since:
        1.5

    - #### removeService

          protected void removeService(Provider.Service s)

      Remove a service previously added using `putService()`. The specified service is removed from this provider. It will no longer be returned by `getService()` and its information will be removed from this provider's Hashtable.

      Also, if there is a security manager, its `checkSecurityAccess` method is called with the string `"removeProviderProperty."+name`, where `name` is the provider name, to see if it's ok to remove this provider's properties. If the default implementation of `checkSecurityAccess` is used (that is, that method is not overriden), then this results in a call to the security manager's `checkPermission` method with a `SecurityPermission("removeProviderProperty."+name)` permission.

      Parameters:
        `s` - the Service to be removed
      Throws:
        `SecurityException` - if a security manager exists and its `SecurityManager.checkSecurityAccess(java.lang.String)` method denies access to remove this provider's properties.
        `NullPointerException` - if s is null
      Since:
        1.5

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