feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/com/sun/jndi/ldap/spi/LdapDnsProvider.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.jndi.ldap.spi;
+
+import javax.naming.Context;
+import javax.naming.NamingException;
+import java.util.Map;
+import java.util.Optional;
+
+/**
+ * Service-provider class for DNS lookups when performing LDAP operations.
+ *
+ * <p> An LDAP DNS provider is a concrete subclass of this class that
+ * has a zero-argument constructor. LDAP DNS providers are located using the
+ * ServiceLoader facility, as specified by
+ * {@linkplain javax.naming.directory.InitialDirContext InitialDirectContext}.
+ *
+ * The
+ * {@link java.util.ServiceLoader ServiceLoader} is used to create and register
+ * implementations of {@code LdapDnsProvider}.
+ *
+ * <p> An LDAP DNS provider can be used in environments where the default
+ * DNS resolution mechanism is not sufficient to accurately pinpoint the
+ * correct LDAP servers needed to perform LDAP operations. For example, in an
+ * environment containing a mix of {@code ldap} and {@code ldaps} servers
+ * you may want the {@linkplain javax.naming.ldap.LdapContext LdapContext}
+ * to query {@code ldaps} servers only.
+ *
+ * @since 12
+ */
+public abstract class LdapDnsProvider {
+
+    // The {@code RuntimePermission("ldapDnsProvider")} is
+    // necessary to subclass and instantiate the {@code LdapDnsProvider} class.
+    private static final RuntimePermission DNSPROVIDER_PERMISSION =
+            new RuntimePermission("ldapDnsProvider");
+
+    /**
+     * Creates a new instance of {@code LdapDnsProvider}.
+     *
+     * @throws SecurityException if a security manager is present and its
+     *                           {@code checkPermission} method doesn't allow
+     *                           the {@code RuntimePermission("ldapDnsProvider")}.
+     */
+    protected LdapDnsProvider() {
+        this(checkPermission());
+    }
+
+    private LdapDnsProvider(Void unused) {
+        // nothing to do.
+    }
+
+    private static Void checkPermission() {
+        final SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            sm.checkPermission(DNSPROVIDER_PERMISSION);
+        }
+        return null;
+    }
+
+    /**
+     * Lookup the endpoints and domain name for the given {@link Context}
+     * {@link Context#PROVIDER_URL provider URL} and environment. The resolved
+     * endpoints and domain name are returned as an
+     * {@link LdapDnsProviderResult}.
+     *
+     * <p> An endpoint is a {@code String} representation of an LDAP URL which
+     * points to an LDAP server to be used for LDAP operations. The syntax of
+     * an LDAP URL is defined by <a href="http://www.ietf.org/rfc/rfc2255.txt">
+     * <i>RFC&nbsp;2255: The LDAP URL Format</i></a>.
+     *
+     * @param url   The {@link Context} {@link Context#PROVIDER_URL provider URL}
+     * @param env   The {@link Context} environment.
+     *
+     * @return  an {@link LdapDnsProviderResult} or empty {@code Optional}
+     *          if the lookup fails.
+     *
+     * @throws NamingException      if the {@code url} is not valid or an error
+     *                              occurred while performing the lookup.
+     * @throws NullPointerException if either {@code url} or {@code env} are
+     *                              {@code null}.
+     */
+    public abstract Optional<LdapDnsProviderResult> lookupEndpoints(
+            String url, Map<?,?> env) throws NamingException;
+
+}

jdkSrc/jdk8/com/sun/jndi/ldap/spi/LdapDnsProviderResult.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.jndi.ldap.spi;
+
+import java.util.List;
+import java.util.ArrayList;
+
+/**
+ * The result of a DNS lookup for an LDAP URL.
+ *
+ * <p> This class is used by an {@link LdapDnsProvider} to return the result
+ * of a DNS lookup for a given LDAP URL. The result consists of a domain name
+ * and its associated ldap server endpoints.
+ *
+ * <p> A {@code null} {@code domainName} is equivalent to and represented
+ * by an empty string.
+ *
+ * @since 12
+ */
+public final class LdapDnsProviderResult {
+
+    private final String domainName;
+    private final List<String> endpoints;
+
+    /**
+     * Construct an LdapDnsProviderResult consisting of a resolved domain name
+     * and the ldap server endpoints that serve the domain.
+     *
+     * @param domainName    the resolved domain name; can be null.
+     * @param endpoints     the possibly empty list of resolved ldap server
+     *                      endpoints
+     *
+     * @throws NullPointerException   if {@code endpoints} contains {@code null}
+     *                                elements.
+     * @throws ClassCastException     if {@code endpoints} contains non-
+     *                                {@code String} elements.
+     */
+    public LdapDnsProviderResult(String domainName, List<String> endpoints) {
+        this.domainName = (domainName == null) ? "" : domainName;
+        this.endpoints = new ArrayList<>(endpoints);
+    }
+
+    /**
+     * Returns the domain name resolved from the ldap URL. This method returns
+     * the empty string if the {@code LdapDnsProviderResult} is created with a
+     * null domain name.
+     *
+     * @return  the resolved domain name
+     */
+    public String getDomainName() {
+        return domainName;
+    }
+
+    /**
+     * Returns the possibly empty list of individual server endpoints resolved
+     * from the ldap URL.
+     *
+     * @return  a possibly empty unmodifiable {@link List} containing the
+     *          resolved ldap server endpoints
+     */
+    public List<String> getEndpoints() {
+        return endpoints;
+    }
+
+}