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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
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/*
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* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.security.cert;
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import java.security.KeyStore;
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import java.security.KeyStoreException;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidParameterException;
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import java.util.Set;
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/**
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* Parameters used as input for the PKIX {@code CertPathBuilder}
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* algorithm.
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* <p>
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* A PKIX {@code CertPathBuilder} uses these parameters to {@link
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* CertPathBuilder#build build} a {@code CertPath} which has been
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* validated according to the PKIX certification path validation algorithm.
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*
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* <p>To instantiate a {@code PKIXBuilderParameters} object, an
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* application must specify one or more <i>most-trusted CAs</i> as defined by
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* the PKIX certification path validation algorithm. The most-trusted CA
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* can be specified using one of two constructors. An application
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* can call {@link #PKIXBuilderParameters(Set, CertSelector)
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* PKIXBuilderParameters(Set, CertSelector)}, specifying a
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* {@code Set} of {@code TrustAnchor} objects, each of which
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* identifies a most-trusted CA. Alternatively, an application can call
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* {@link #PKIXBuilderParameters(KeyStore, CertSelector)
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* PKIXBuilderParameters(KeyStore, CertSelector)}, specifying a
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* {@code KeyStore} instance containing trusted certificate entries, each
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* of which will be considered as a most-trusted CA.
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*
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* <p>In addition, an application must specify constraints on the target
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* certificate that the {@code CertPathBuilder} will attempt
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* to build a path to. The constraints are specified as a
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* {@code CertSelector} object. These constraints should provide the
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* {@code CertPathBuilder} with enough search criteria to find the target
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* certificate. Minimal criteria for an {@code X509Certificate} usually
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* include the subject name and/or one or more subject alternative names.
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* If enough criteria is not specified, the {@code CertPathBuilder}
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* may throw a {@code CertPathBuilderException}.
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* <p>
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* <b>Concurrent Access</b>
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* <p>
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* Unless otherwise specified, the methods defined in this class are not
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* thread-safe. Multiple threads that need to access a single
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* object concurrently should synchronize amongst themselves and
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* provide the necessary locking. Multiple threads each manipulating
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* separate objects need not synchronize.
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*
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* @see CertPathBuilder
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*
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* @since 1.4
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* @author Sean Mullan
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*/
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public class PKIXBuilderParameters extends PKIXParameters {
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private int maxPathLength = 5;
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/**
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* Creates an instance of {@code PKIXBuilderParameters} with
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* the specified {@code Set} of most-trusted CAs.
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* Each element of the set is a {@link TrustAnchor TrustAnchor}.
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*
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* <p>Note that the {@code Set} is copied to protect against
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* subsequent modifications.
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*
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* @param trustAnchors a {@code Set} of {@code TrustAnchor}s
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* @param targetConstraints a {@code CertSelector} specifying the
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* constraints on the target certificate
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* @throws InvalidAlgorithmParameterException if {@code trustAnchors}
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* is empty {@code (trustAnchors.isEmpty() == true)}
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* @throws NullPointerException if {@code trustAnchors} is
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* {@code null}
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* @throws ClassCastException if any of the elements of
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* {@code trustAnchors} are not of type
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* {@code java.security.cert.TrustAnchor}
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*/
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public PKIXBuilderParameters(Set<TrustAnchor> trustAnchors, CertSelector
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targetConstraints) throws InvalidAlgorithmParameterException
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{
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super(trustAnchors);
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setTargetCertConstraints(targetConstraints);
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}
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/**
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* Creates an instance of {@code PKIXBuilderParameters} that
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* populates the set of most-trusted CAs from the trusted
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* certificate entries contained in the specified {@code KeyStore}.
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* Only keystore entries that contain trusted {@code X509Certificate}s
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* are considered; all other certificate types are ignored.
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*
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* @param keystore a {@code KeyStore} from which the set of
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* most-trusted CAs will be populated
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* @param targetConstraints a {@code CertSelector} specifying the
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* constraints on the target certificate
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* @throws KeyStoreException if {@code keystore} has not been
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* initialized
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* @throws InvalidAlgorithmParameterException if {@code keystore} does
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* not contain at least one trusted certificate entry
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* @throws NullPointerException if {@code keystore} is
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* {@code null}
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*/
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public PKIXBuilderParameters(KeyStore keystore,
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CertSelector targetConstraints)
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throws KeyStoreException, InvalidAlgorithmParameterException
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{
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super(keystore);
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setTargetCertConstraints(targetConstraints);
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}
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/**
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* Sets the value of the maximum number of non-self-issued intermediate
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* certificates that may exist in a certification path. A certificate
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* is self-issued if the DNs that appear in the subject and issuer
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* fields are identical and are not empty. Note that the last certificate
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* in a certification path is not an intermediate certificate, and is not
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* included in this limit. Usually the last certificate is an end entity
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* certificate, but it can be a CA certificate. A PKIX
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* {@code CertPathBuilder} instance must not build
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* paths longer than the length specified.
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*
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* <p> A value of 0 implies that the path can only contain
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* a single certificate. A value of -1 implies that the
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* path length is unconstrained (i.e. there is no maximum).
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* The default maximum path length, if not specified, is 5.
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* Setting a value less than -1 will cause an exception to be thrown.
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*
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* <p> If any of the CA certificates contain the
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* {@code BasicConstraintsExtension}, the value of the
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* {@code pathLenConstraint} field of the extension overrides
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* the maximum path length parameter whenever the result is a
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* certification path of smaller length.
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*
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* @param maxPathLength the maximum number of non-self-issued intermediate
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* certificates that may exist in a certification path
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* @throws InvalidParameterException if {@code maxPathLength} is set
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* to a value less than -1
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*
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* @see #getMaxPathLength
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*/
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public void setMaxPathLength(int maxPathLength) {
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if (maxPathLength < -1) {
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throw new InvalidParameterException("the maximum path "
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+ "length parameter can not be less than -1");
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}
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this.maxPathLength = maxPathLength;
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}
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/**
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* Returns the value of the maximum number of intermediate non-self-issued
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* certificates that may exist in a certification path. See
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* the {@link #setMaxPathLength} method for more details.
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*
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* @return the maximum number of non-self-issued intermediate certificates
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* that may exist in a certification path, or -1 if there is no limit
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*
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* @see #setMaxPathLength
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*/
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public int getMaxPathLength() {
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return maxPathLength;
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}
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/**
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* Returns a formatted string describing the parameters.
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*
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* @return a formatted string describing the parameters
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*/
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public String toString() {
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StringBuilder sb = new StringBuilder();
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sb.append("[\n");
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sb.append(super.toString());
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sb.append(" Maximum Path Length: " + maxPathLength + "\n");
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sb.append("]\n");
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return sb.toString();
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}
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}
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