1 /*
2 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
97 */
98 public final String getName() {
99 return this.mechanism;
100 }
101
102 /**
103 * Returns an <code>ExemptionMechanism</code> object that implements the
104 * specified exemption mechanism algorithm.
105 *
106 * <p> This method traverses the list of registered security Providers,
107 * starting with the most preferred Provider.
108 * A new ExemptionMechanism object encapsulating the
109 * ExemptionMechanismSpi implementation from the first
110 * Provider that supports the specified algorithm is returned.
111 *
112 * <p> Note that the list of registered providers may be retrieved via
113 * the {@link Security#getProviders() Security.getProviders()} method.
114 *
115 * @implNote
116 * The JDK Reference Implementation additionally uses the
117 * {@code jdk.security.provider.preferred} property to determine
118 * the preferred provider order for the specified algorithm. This
119 * may be different than the order of providers returned by
120 * {@link Security#getProviders() Security.getProviders()}.
121 *
122 * @param algorithm the standard name of the requested exemption
123 * mechanism.
124 * See the ExemptionMechanism section in the
125 * <a href=
126 * "{@docRoot}/../technotes/guides/security/StandardNames.html#Exemption">
127 * Java Cryptography Architecture Standard Algorithm Name Documentation</a>
128 * for information about standard exemption mechanism names.
129 *
130 * @return the new <code>ExemptionMechanism</code> object.
131 *
132 * @exception NullPointerException if <code>algorithm</code>
133 * is null.
134 *
135 * @exception NoSuchAlgorithmException if no Provider supports an
136 * ExemptionMechanismSpi implementation for the
137 * specified algorithm.
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1 /*
2 * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
97 */
98 public final String getName() {
99 return this.mechanism;
100 }
101
102 /**
103 * Returns an <code>ExemptionMechanism</code> object that implements the
104 * specified exemption mechanism algorithm.
105 *
106 * <p> This method traverses the list of registered security Providers,
107 * starting with the most preferred Provider.
108 * A new ExemptionMechanism object encapsulating the
109 * ExemptionMechanismSpi implementation from the first
110 * Provider that supports the specified algorithm is returned.
111 *
112 * <p> Note that the list of registered providers may be retrieved via
113 * the {@link Security#getProviders() Security.getProviders()} method.
114 *
115 * @implNote
116 * The JDK Reference Implementation additionally uses the
117 * {@code jdk.security.provider.preferred}
118 * {@link Security#getProperty(String) Security} property to determine
119 * the preferred provider order for the specified algorithm. This
120 * may be different than the order of providers returned by
121 * {@link Security#getProviders() Security.getProviders()}.
122 *
123 * @param algorithm the standard name of the requested exemption
124 * mechanism.
125 * See the ExemptionMechanism section in the
126 * <a href=
127 * "{@docRoot}/../technotes/guides/security/StandardNames.html#Exemption">
128 * Java Cryptography Architecture Standard Algorithm Name Documentation</a>
129 * for information about standard exemption mechanism names.
130 *
131 * @return the new <code>ExemptionMechanism</code> object.
132 *
133 * @exception NullPointerException if <code>algorithm</code>
134 * is null.
135 *
136 * @exception NoSuchAlgorithmException if no Provider supports an
137 * ExemptionMechanismSpi implementation for the
138 * specified algorithm.
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