author | William Roberts <williamr@symbian.org> |
Mon, 14 Jun 2010 10:25:56 +0100 | |
branch | GCC_SURGE |
changeset 33 | 3aacd8b1cbce |
parent 21 | 2a9601315dfc |
permissions | -rw-r--r-- |
21
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/* |
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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package javax.microedition.io; |
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|
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import java.security.Permission; |
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import java.security.PermissionCollection; |
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|
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/** |
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* This class represents access rights to connections via the "ssl" protocol. |
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* A SSLProtocolPermission consists of a URI string but no actions list. |
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* <p> |
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* The URI string specifies a socket stream connection. It takes the following |
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* general form: |
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* <p> |
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* ssl://{host}:{portspec} |
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* <p> |
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* The exact syntax for the SSLProtocolPermission URI is provided by this BNF. |
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* The value of the {host} field must be a symbolic hostname, a literal IPv4 |
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* address or a literal IPv6 address, as specified by RFC 3986. If the {host} |
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* string is a DNS name, an asterisk may appear in the leftmost position to |
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* indicate a match of 1 or more entire domain labels. Partial domain label |
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* matches are not permitted, therefore "*.sun.com" is valid, but "*sun.com" |
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* is not. An asterisk by itself matches all hosts. |
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* <p> |
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* The {portspec} string takes the following form: |
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* <p> |
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* portnumber | -portnumber | portnumber-[portnumber] | "*" |
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* <p> |
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* A {portspec} specification of the form "N-" (where N is a port number) |
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* signifies all ports numbered N and above, while a specification of the form |
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* "-N" indicates all ports numbered N and below. A single asterisk in the |
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* place of the {portspec} field matches all ports. Therefore, the URI |
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* "ssl://*:*" matches secure connections to all hosts on all ports. |
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* |
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* @see Connector.open(java.lang.String) |
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* @see "javax.microedition.io.SecureConnection" in MIDP 3.0 Specification |
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* |
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* @author Nokia Corporation |
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* @version 1.0 |
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*/ |
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public final class SSLProtocolPermission |
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extends GCFPermission |
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{ |
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/** |
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* Creates a new SSLProtocolPermission with the specified URI as its |
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* name. The URI string must conform to the specification given above, |
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* and is normalized to facilitate subsequent comparisons. |
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* |
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* @param uri the URI string. |
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* @throws IllegalArgumentException if uri is malformed. |
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* @throws NullPointerException if uri is null. |
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*/ |
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public SSLProtocolPermission(String uri) |
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{ |
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super(uri); |
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} |
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|
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/** |
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* Checks if this SSLProtocolPermission object "implies" the |
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* specified permission. |
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* <p> |
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* Because the {host} field of the permission URI may indicate an |
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* individual host by means of either a symbolic hostname or an IP |
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* address, a thorough evaluation of the implies relation between |
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* two SSLProtocolPermission objects requires the underlying |
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* platform to be able to transform symbolic hostnames into IP |
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* addresses (via address lookup) and vice-versa (via name lookup). |
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* Either service may be unavailable on a given platform. As a result, |
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* the comparison of URI strings from two permissions can only be |
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* best-effort. For each SSLProtocolPermission constructed with a |
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* URI that contains a {host} field, the implementation will attempt |
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* to determine both the fully-qualified domain name (the "canonical |
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* name") and the IP address(es) of the host. However, either value |
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* may be unknown. |
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* <p> |
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* To determine whether this object implies another permission, p, |
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* this method first ensures that all of the following are true |
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* (and returns false if any of them are not): |
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* <ul> |
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* <li>p is an instanceof SSLProtocolPermission, and</li> |
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* <li>p's port range is included in this port range</li> |
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* </ul> |
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98 |
* Then implies checks each of the following, in order, and for each |
2a9601315dfc
Revision: v2.1.22
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99 |
* returns true if the stated condition is true: |
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Revision: v2.1.22
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100 |
* <ul> |
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Revision: v2.1.22
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101 |
* <li>If this object has a single IP address and one of p's IP addresses |
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Revision: v2.1.22
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102 |
* is equal to this object's IP address.</li> |
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Revision: v2.1.22
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103 |
* <li>If this object has a wildcard domain (such as *.sun.com), and p's |
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Revision: v2.1.22
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104 |
* absolute name (the name with any preceding * removed) ends with this |
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Revision: v2.1.22
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105 |
* object's absolute name. For example, *.sun.com implies *.eng.sun.com. |
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Revision: v2.1.22
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106 |
* </li> |
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107 |
* <li>If this object has multiple IP addresses, and one of this object's |
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Revision: v2.1.22
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108 |
* IP addresses equals one of p's IP addresses.</li> |
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Revision: v2.1.22
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109 |
* <li>If this object's canonical name equals p's canonical name.</li> |
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Revision: v2.1.22
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110 |
* </ul> |
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111 |
* If none of the above are true, implies returns false. |
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112 |
* |
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113 |
* @param p the permission to check against. |
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114 |
* @return true if the specified permission is implied by this object, |
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Revision: v2.1.22
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115 |
* false if not. |
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116 |
*/ |
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117 |
public boolean implies(Permission p) |
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118 |
{ |
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119 |
if (p instanceof SSLProtocolPermission) |
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120 |
{ |
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121 |
return true; |
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122 |
} |
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123 |
return false; |
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124 |
} |
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125 |
|
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126 |
/** |
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127 |
* Checks two SSLProtocolPermission objects for equality. |
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128 |
* |
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129 |
* @param obj the object we are testing for equality with this object. |
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130 |
* @return true if obj is a SSLProtocolPermission and has the same |
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Revision: v2.1.22
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131 |
* URI string as this SSLProtocolPermission object. |
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132 |
*/ |
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133 |
public boolean equals(Object obj) |
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134 |
{ |
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135 |
return true; |
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136 |
} |
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137 |
|
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138 |
/** |
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139 |
* Returns the hash code value for this object. The hash code used is the |
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Revision: v2.1.22
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* hash code of this permissions name, that is, getName().hashCode(), |
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Revision: v2.1.22
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* where getName is from the Permission superclass |
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142 |
* |
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* @return a hash code value for this object. |
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144 |
*/ |
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public int hashCode() |
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146 |
{ |
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return 0; |
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148 |
} |
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149 |
|
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150 |
/** |
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151 |
* Returns the canonical string representation of the actions, which |
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* currently is the empty string "", since there are no actions defined |
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* for SSLProtocolPermission. |
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* |
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* @return the empty string "". |
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156 |
*/ |
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157 |
public String getActions() |
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158 |
{ |
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159 |
return ""; |
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160 |
} |
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161 |
|
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162 |
/** |
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163 |
* Returns a new PermissionCollection for storing |
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Revision: v2.1.22
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164 |
* SSLProtocolPermission objects. |
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165 |
* <p> |
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166 |
* SSLProtocolPermission objects must be stored in a manner that allows |
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Revision: v2.1.22
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167 |
* them to be inserted into the collection in any order, but that also |
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Revision: v2.1.22
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168 |
* enables the PermissionCollection implies method to be implemented in an |
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Revision: v2.1.22
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169 |
* efficient (and consistent) manner. |
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170 |
* |
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171 |
* @return a new PermissionCollection suitable for storing |
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172 |
* SSLProtocolPermission objects. |
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173 |
*/ |
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174 |
public PermissionCollection newPermissionCollection() |
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Revision: v2.1.22
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175 |
{ |
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return null; |
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177 |
} |
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178 |
} |