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diff --git a/libjava/classpath/gnu/javax/net/ssl/provider/X509TrustManagerFactory.java b/libjava/classpath/gnu/javax/net/ssl/provider/X509TrustManagerFactory.java
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+/* X509TrustManagerFactory.java -- X.509 trust manager factory.
+   Copyright (C) 2006  Free Software Foundation, Inc.
+
+This file is a part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at
+your option) any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+USA
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version.  */
+
+
+package gnu.javax.net.ssl.provider;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+
+import java.util.Arrays;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.Set;
+
+import java.security.AccessController;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertPath;
+import java.security.cert.CertPathValidator;
+import java.security.cert.CertPathValidatorException;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateException;
+import java.security.cert.PKIXParameters;
+import java.security.cert.TrustAnchor;
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.ManagerFactoryParameters;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.TrustManagerFactorySpi;
+import javax.net.ssl.X509TrustManager;
+
+import gnu.java.security.action.GetPropertyAction;
+import gnu.java.security.x509.X509CertPath;
+import gnu.javax.net.ssl.NullManagerParameters;
+import gnu.javax.net.ssl.StaticTrustAnchors;
+
+/**
+ * This class implements a {@link javax.net.ssl.TrustManagerFactory} engine
+ * for the ``JessieX509'' algorithm.
+ */
+public class X509TrustManagerFactory extends TrustManagerFactorySpi
+{
+
+  // Constants and fields.
+  // -------------------------------------------------------------------------
+
+  private static final String sep
+    = AccessController.doPrivileged(new GetPropertyAction("file.separator"));
+
+  /**
+   * The location of the JSSE key store.
+   */
+  private static final String JSSE_CERTS
+    = AccessController.doPrivileged(new GetPropertyAction("java.home"))
+      + sep + "lib" + sep + "security" + sep + "jssecerts";
+
+  /**
+   * The location of the system key store, containing the CA certs.
+   */
+  private static final String CA_CERTS
+    = AccessController.doPrivileged(new GetPropertyAction("java.home"))
+      + sep + "lib" + sep + "security" + sep + "cacerts";
+
+  private Manager current;
+
+  // Construtors.
+  // -------------------------------------------------------------------------
+
+  public X509TrustManagerFactory()
+  {
+    super();
+  }
+
+  // Instance methods.
+  // -------------------------------------------------------------------------
+
+  protected TrustManager[] engineGetTrustManagers()
+  {
+    if (current == null)
+      {
+        throw new IllegalStateException("not initialized");
+      }
+    return new TrustManager[] { current };
+  }
+
+  protected void engineInit(ManagerFactoryParameters params)
+    throws InvalidAlgorithmParameterException
+  {
+    if (params instanceof StaticTrustAnchors)
+      {
+        current = new Manager(((StaticTrustAnchors) params).getCertificates());
+      }
+    else if (params instanceof NullManagerParameters)
+      {
+        current = new Manager(new X509Certificate[0]);
+      }
+    else
+      {
+        throw new InvalidAlgorithmParameterException();
+      }
+  }
+
+  protected void engineInit(KeyStore store) throws KeyStoreException
+  {
+    if (store == null)
+      {
+        GetPropertyAction gpa = new GetPropertyAction("javax.net.ssl.trustStoreType");
+        String s = AccessController.doPrivileged(gpa);
+        if (s == null)
+          s = KeyStore.getDefaultType();
+        store = KeyStore.getInstance(s);
+        try
+          {
+            s = AccessController.doPrivileged(gpa.setParameters("javax.net.ssl.trustStore"));
+            FileInputStream in = null;
+            if (s == null)
+              {
+                try
+                  {
+                    in = new FileInputStream(JSSE_CERTS);
+                  }
+                catch (IOException e)
+                  {
+                    in = new FileInputStream(CA_CERTS);
+                  }
+              }
+            else
+              {
+                in = new FileInputStream(s);
+              }
+            String p = AccessController.doPrivileged(gpa.setParameters("javax.net.ssl.trustStorePassword"));
+            store.load(in, p != null ? p.toCharArray() : null);
+          }
+        catch (IOException ioe)
+          {
+            throw new KeyStoreException(ioe);
+          }
+        catch (CertificateException ce)
+          {
+            throw new KeyStoreException(ce);
+          }
+        catch (NoSuchAlgorithmException nsae)
+          {
+            throw new KeyStoreException(nsae);
+          }
+      }
+
+    LinkedList<X509Certificate> l = new LinkedList<X509Certificate>();
+    Enumeration aliases = store.aliases();
+    while (aliases.hasMoreElements())
+      {
+        String alias = (String) aliases.nextElement();
+        if (!store.isCertificateEntry(alias))
+          continue;
+        Certificate c = store.getCertificate(alias);
+        if (!(c instanceof X509Certificate))
+          continue;
+        l.add((X509Certificate) c);
+      }
+    current = this.new Manager(l.toArray(new X509Certificate[l.size()]));
+  }
+
+  // Inner class.
+  // -------------------------------------------------------------------------
+
+  /**
+   * The actual manager implementation returned.
+   */
+  private class Manager implements X509TrustManager
+  {
+
+    // Fields.
+    // -----------------------------------------------------------------------
+
+    private final Set<TrustAnchor> anchors;
+
+    // Constructor.
+    // -----------------------------------------------------------------------
+
+    Manager(X509Certificate[] trusted)
+    {
+      anchors = new HashSet<TrustAnchor>();
+      if (trusted != null)
+        {
+          for (X509Certificate cert : trusted)
+            {
+              anchors.add(new TrustAnchor(cert, null));
+            }
+        }
+    }
+
+    // Instance methodns.
+    // -----------------------------------------------------------------------
+
+    public void checkClientTrusted(X509Certificate[] chain, String authType)
+      throws CertificateException
+    {
+      checkTrusted(chain, authType);
+    }
+
+    public void checkServerTrusted(X509Certificate[] chain, String authType)
+      throws CertificateException
+    {
+      checkTrusted(chain, authType);
+    }
+
+    public X509Certificate[] getAcceptedIssuers()
+    {
+      return anchors.toArray(new X509Certificate[anchors.size()]);
+    }
+
+    // Own methods.
+    // -----------------------------------------------------------------------
+
+    private void checkTrusted(X509Certificate[] chain, String authType)
+      throws CertificateException
+    {
+      CertPathValidator validator = null;
+
+      try
+        {
+          validator = CertPathValidator.getInstance("PKIX");
+        }
+      catch (NoSuchAlgorithmException nsae)
+        {
+          throw new CertificateException(nsae);
+        }
+
+      CertPath path = new X509CertPath(Arrays.asList(chain));
+
+      PKIXParameters params = null;
+      try
+        {
+          params = new PKIXParameters(anchors);
+          // XXX we probably do want to enable revocation, but it's a pain
+          // in the ass.
+          params.setRevocationEnabled(false);
+        }
+      catch (InvalidAlgorithmParameterException iape)
+        {
+          throw new CertificateException(iape);
+        }
+
+      try
+        {
+          validator.validate(path, params);
+        }
+      catch (CertPathValidatorException cpve)
+        {
+          throw new CertificateException(cpve);
+        }
+      catch (InvalidAlgorithmParameterException iape)
+        {
+          throw new CertificateException(iape);
+        }
+    }
+  }
+}