--- a/src/share/classes/sun/security/pkcs12/PKCS12KeyStore.java	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/classes/sun/security/pkcs12/PKCS12KeyStore.java	Tue Nov 21 08:27:06 2017 +0000
@@ -970,6 +970,39 @@
     }
 
     /**
+     * Determines if the keystore {@code Entry} for the specified
+     * {@code alias} is an instance or subclass of the specified
+     * {@code entryClass}.
+     *
+     * @param alias the alias name
+     * @param entryClass the entry class
+     *
+     * @return true if the keystore {@code Entry} for the specified
+     *          {@code alias} is an instance or subclass of the
+     *          specified {@code entryClass}, false otherwise
+     *
+     * @since 1.5
+     */
+    @Override
+    public boolean
+        engineEntryInstanceOf(String alias,
+                              Class<? extends KeyStore.Entry> entryClass)
+    {
+        if (entryClass == KeyStore.TrustedCertificateEntry.class) {
+            return engineIsCertificateEntry(alias);
+        }
+
+        Entry entry = entries.get(alias.toLowerCase(Locale.ENGLISH));
+        if (entryClass == KeyStore.PrivateKeyEntry.class) {
+            return (entry != null && entry instanceof PrivateKeyEntry);
+        }
+        if (entryClass == KeyStore.SecretKeyEntry.class) {
+            return (entry != null && entry instanceof SecretKeyEntry);
+        }
+        return false;
+    }
+
+    /**
      * Returns the (alias) name of the first keystore entry whose certificate
      * matches the given certificate.
      *
@@ -1001,7 +1034,7 @@
             } else {
                 continue;
             }
-            if (certElem.equals(cert)) {
+            if (certElem != null && certElem.equals(cert)) {
                 return alias;
             }
         }
@@ -1849,7 +1882,12 @@
                 safeContentsData = safeContents.getData();
             } else if (contentType.equals(ContentInfo.ENCRYPTED_DATA_OID)) {
                 if (password == null) {
-                   continue;
+
+                    if (debug != null) {
+                        debug.println("Warning: skipping PKCS#7 encryptedData" +
+                            " content-type - no password was supplied");
+                    }
+                    continue;
                 }
                 DerInputStream edi =
                                 safeContents.getContent().toDerInputStream();
@@ -1886,8 +1924,9 @@
                             password = new char[1];
                             continue;
                         }
-                        throw new IOException(
-                            "failed to decrypt safe contents entry: " + e, e);
+                        throw new IOException("keystore password was incorrect",
+                            new UnrecoverableKeyException(
+                                "failed to decrypt safe contents entry: " + e));
                     }
                 }
             } else {

--- a/src/share/classes/sun/security/provider/JavaKeyStore.java	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/classes/sun/security/provider/JavaKeyStore.java	Tue Nov 21 08:27:06 2017 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, 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
@@ -31,9 +31,10 @@
 import java.security.cert.CertificateFactory;
 import java.security.cert.CertificateException;
 import java.util.*;
+
 import sun.misc.IOUtils;
-
 import sun.security.pkcs.EncryptedPrivateKeyInfo;
+import sun.security.pkcs12.PKCS12KeyStore;
 
 /**
  * This class provides the keystore implementation referred to as "JKS".
@@ -65,6 +66,13 @@
         }
     }
 
+    // special JKS that supports JKS and PKCS12 file formats
+    public static final class DualFormatJKS extends KeyStoreDelegator {
+        public DualFormatJKS() {
+            super("JKS", JKS.class, "PKCS12", PKCS12KeyStore.class);
+        }
+    }
+
     private static final int MAGIC = 0xfeedfeed;
     private static final int VERSION_1 = 0x01;
     private static final int VERSION_2 = 0x02;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/sun/security/provider/KeyStoreDelegator.java	Tue Nov 21 08:27:06 2017 +0000
@@ -0,0 +1,279 @@
+/*
+ * Copyright (c) 2015, 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 sun.security.provider;
+
+import java.io.*;
+import java.security.*;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateFactory;
+import java.security.cert.CertificateException;
+import java.util.*;
+
+import sun.security.util.Debug;
+
+/**
+ * This class delegates to a primary or secondary keystore implementation.
+ *
+ * @since 1.8
+ */
+
+class KeyStoreDelegator extends KeyStoreSpi {
+
+    private static final String KEYSTORE_TYPE_COMPAT = "keystore.type.compat";
+    private static final Debug debug = Debug.getInstance("keystore");
+
+    private final String primaryType;   // the primary keystore's type
+    private final String secondaryType; // the secondary keystore's type
+    private final Class<? extends KeyStoreSpi> primaryKeyStore;
+                                        // the primary keystore's class
+    private final Class<? extends KeyStoreSpi> secondaryKeyStore;
+                                        // the secondary keystore's class
+    private String type; // the delegate's type
+    private KeyStoreSpi keystore; // the delegate
+    private boolean compatModeEnabled = true;
+
+    public KeyStoreDelegator(
+        String primaryType,
+        Class<? extends KeyStoreSpi> primaryKeyStore,
+        String secondaryType,
+        Class<? extends KeyStoreSpi> secondaryKeyStore) {
+
+        // Check whether compatibility mode has been disabled
+        // (Use inner-class instead of lambda to avoid init/ClassLoader problem)
+        compatModeEnabled = "true".equalsIgnoreCase(
+            AccessController.doPrivileged(
+                new PrivilegedAction<String>() {
+                    public String run() {
+                        return Security.getProperty(KEYSTORE_TYPE_COMPAT);
+                    }
+                }
+            ));
+
+        if (compatModeEnabled) {
+            this.primaryType = primaryType;
+            this.secondaryType = secondaryType;
+            this.primaryKeyStore = primaryKeyStore;
+            this.secondaryKeyStore = secondaryKeyStore;
+        } else {
+            this.primaryType = primaryType;
+            this.secondaryType = null;
+            this.primaryKeyStore = primaryKeyStore;
+            this.secondaryKeyStore = null;
+
+            if (debug != null) {
+                debug.println("WARNING: compatibility mode disabled for " +
+                    primaryType + " and " + secondaryType + " keystore types");
+            }
+        }
+    }
+
+    @Override
+    public Key engineGetKey(String alias, char[] password)
+        throws NoSuchAlgorithmException, UnrecoverableKeyException {
+        return keystore.engineGetKey(alias, password);
+    }
+
+    @Override
+    public Certificate[] engineGetCertificateChain(String alias) {
+        return keystore.engineGetCertificateChain(alias);
+    }
+
+    @Override
+    public Certificate engineGetCertificate(String alias) {
+        return keystore.engineGetCertificate(alias);
+    }
+
+    @Override
+    public Date engineGetCreationDate(String alias) {
+        return keystore.engineGetCreationDate(alias);
+    }
+
+    @Override
+    public void engineSetKeyEntry(String alias, Key key, char[] password,
+        Certificate[] chain) throws KeyStoreException {
+        keystore.engineSetKeyEntry(alias, key, password, chain);
+    }
+
+    @Override
+    public void engineSetKeyEntry(String alias, byte[] key, Certificate[] chain)
+        throws KeyStoreException {
+        keystore.engineSetKeyEntry(alias, key, chain);
+    }
+
+    @Override
+    public void engineSetCertificateEntry(String alias, Certificate cert)
+        throws KeyStoreException {
+        keystore.engineSetCertificateEntry(alias, cert);
+    }
+
+    @Override
+    public void engineDeleteEntry(String alias) throws KeyStoreException {
+        keystore.engineDeleteEntry(alias);
+    }
+
+    @Override
+    public Enumeration<String> engineAliases() {
+        return keystore.engineAliases();
+    }
+
+    @Override
+    public boolean engineContainsAlias(String alias) {
+        return keystore.engineContainsAlias(alias);
+    }
+
+    @Override
+    public int engineSize() {
+        return keystore.engineSize();
+    }
+
+    @Override
+    public boolean engineIsKeyEntry(String alias) {
+        return keystore.engineIsKeyEntry(alias);
+    }
+
+    @Override
+    public boolean engineIsCertificateEntry(String alias) {
+        return keystore.engineIsCertificateEntry(alias);
+    }
+
+    @Override
+    public String engineGetCertificateAlias(Certificate cert) {
+        return keystore.engineGetCertificateAlias(cert);
+    }
+
+    @Override
+    public KeyStore.Entry engineGetEntry(String alias,
+        KeyStore.ProtectionParameter protParam)
+            throws KeyStoreException, NoSuchAlgorithmException,
+                UnrecoverableEntryException {
+        return keystore.engineGetEntry(alias, protParam);
+    }
+
+    @Override
+    public void engineSetEntry(String alias, KeyStore.Entry entry,
+        KeyStore.ProtectionParameter protParam)
+            throws KeyStoreException {
+        keystore.engineSetEntry(alias, entry, protParam);
+    }
+
+    @Override
+    public boolean engineEntryInstanceOf(String alias,
+        Class<? extends KeyStore.Entry> entryClass) {
+        return keystore.engineEntryInstanceOf(alias, entryClass);
+    }
+
+    @Override
+    public void engineStore(OutputStream stream, char[] password)
+        throws IOException, NoSuchAlgorithmException, CertificateException {
+
+        if (debug != null) {
+            debug.println("Storing keystore in " + type + " format");
+        }
+        keystore.engineStore(stream, password);
+    }
+
+    @Override
+    public void engineLoad(InputStream stream, char[] password)
+        throws IOException, NoSuchAlgorithmException, CertificateException {
+
+        // A new keystore is always created in the primary keystore format
+        if (stream == null || !compatModeEnabled) {
+            try {
+                keystore = primaryKeyStore.newInstance();
+
+            } catch (InstantiationException | IllegalAccessException e) {
+                // can safely ignore
+            }
+            type = primaryType;
+
+            if (debug != null && stream == null) {
+                debug.println("Creating a new keystore in " + type + " format");
+            }
+            keystore.engineLoad(stream, password);
+
+        } else {
+            // First try the primary keystore then try the secondary keystore
+            try (InputStream bufferedStream = new BufferedInputStream(stream)) {
+                bufferedStream.mark(Integer.MAX_VALUE);
+
+                try {
+                    keystore = primaryKeyStore.newInstance();
+                    type = primaryType;
+                    keystore.engineLoad(bufferedStream, password);
+
+                } catch (Exception e) {
+
+                    // incorrect password
+                    if (e instanceof IOException &&
+                        e.getCause() instanceof UnrecoverableKeyException) {
+                        throw (IOException)e;
+                    }
+
+                    try {
+                        keystore = secondaryKeyStore.newInstance();
+                        type = secondaryType;
+                        bufferedStream.reset();
+                        keystore.engineLoad(bufferedStream, password);
+
+                        if (debug != null) {
+                            debug.println("WARNING: switching from " +
+                              primaryType + " to " + secondaryType +
+                              " keystore file format has altered the " +
+                              "keystore security level");
+                        }
+
+                    } catch (InstantiationException |
+                        IllegalAccessException e2) {
+                        // can safely ignore
+
+                    } catch (IOException |
+                        NoSuchAlgorithmException |
+                        CertificateException e3) {
+
+                        // incorrect password
+                        if (e3 instanceof IOException &&
+                            e3.getCause() instanceof
+                                UnrecoverableKeyException) {
+                            throw (IOException)e3;
+                        }
+                        // rethrow the outer exception
+                        if (e instanceof IOException) {
+                            throw (IOException)e;
+                        } else if (e instanceof CertificateException) {
+                            throw (CertificateException)e;
+                        } else if (e instanceof NoSuchAlgorithmException) {
+                            throw (NoSuchAlgorithmException)e;
+                        }
+                    }
+                }
+            }
+
+            if (debug != null) {
+                debug.println("Loaded a keystore in " + type + " format");
+            }
+        }
+    }
+}

--- a/src/share/classes/sun/security/provider/SunEntries.java	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/classes/sun/security/provider/SunEntries.java	Tue Nov 21 08:27:06 2017 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2015, 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
@@ -205,7 +205,8 @@
         /*
          * KeyStore
          */
-        map.put("KeyStore.JKS", "sun.security.provider.JavaKeyStore$JKS");
+        map.put("KeyStore.JKS",
+                        "sun.security.provider.JavaKeyStore$DualFormatJKS");
         map.put("KeyStore.CaseExactJKS",
                         "sun.security.provider.JavaKeyStore$CaseExactJKS");
 

--- a/src/share/lib/security/java.security-linux	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/lib/security/java.security-linux	Tue Nov 21 08:27:06 2017 +0000
@@ -118,6 +118,15 @@
 keystore.type=jks
 
 #
+# Controls compatibility mode for the JKS keystore type.
+#
+# When set to 'true', the JKS keystore type supports loading
+# keystore files in either JKS or PKCS12 format. When set to 'false'
+# it supports loading only JKS keystore files.
+#
+keystore.type.compat=true
+
+#
 # List of comma-separated packages that start with or equal this string
 # will cause a security exception to be thrown when
 # passed to checkPackageAccess unless the

--- a/src/share/lib/security/java.security-macosx	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/lib/security/java.security-macosx	Tue Nov 21 08:27:06 2017 +0000
@@ -119,6 +119,15 @@
 keystore.type=jks
 
 #
+# Controls compatibility mode for the JKS keystore type.
+#
+# When set to 'true', the JKS keystore type supports loading
+# keystore files in either JKS or PKCS12 format. When set to 'false'
+# it supports loading only JKS keystore files.
+#
+keystore.type.compat=true
+
+#
 # List of comma-separated packages that start with or equal this string
 # will cause a security exception to be thrown when
 # passed to checkPackageAccess unless the

--- a/src/share/lib/security/java.security-solaris	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/lib/security/java.security-solaris	Tue Nov 21 08:27:06 2017 +0000
@@ -120,6 +120,15 @@
 keystore.type=jks
 
 #
+# Controls compatibility mode for the JKS keystore type.
+#
+# When set to 'true', the JKS keystore type supports loading
+# keystore files in either JKS or PKCS12 format. When set to 'false'
+# it supports loading only JKS keystore files.
+#
+keystore.type.compat=true
+
+#
 # List of comma-separated packages that start with or equal this string
 # will cause a security exception to be thrown when
 # passed to checkPackageAccess unless the

--- a/src/share/lib/security/java.security-windows	Tue Nov 21 08:09:56 2017 +0000
+++ b/src/share/lib/security/java.security-windows	Tue Nov 21 08:27:06 2017 +0000
@@ -119,6 +119,15 @@
 keystore.type=jks
 
 #
+# Controls compatibility mode for the JKS keystore type.
+#
+# When set to 'true', the JKS keystore type supports loading
+# keystore files in either JKS or PKCS12 format. When set to 'false'
+# it supports loading only JKS keystore files.
+#
+keystore.type.compat=true
+
+#
 # List of comma-separated packages that start with or equal this string
 # will cause a security exception to be thrown when
 # passed to checkPackageAccess unless the

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/java/security/KeyStore/TestKeystoreCompat.java	Tue Nov 21 08:27:06 2017 +0000
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2015, 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.
+ *
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 8062552
+ * @run main/othervm TestKeystoreCompat
+ * @summary test compatibility mode for JKS and PKCS12 keystores
+ */
+
+import java.io.*;
+import java.security.*;
+import java.security.KeyStore.*;
+import java.security.cert.*;
+import javax.crypto.*;
+import javax.security.auth.callback.*;
+
+public class TestKeystoreCompat {
+    private static final char[] PASSWORD = "changeit".toCharArray();
+    private static final String DIR = System.getProperty("test.src", ".");
+    // This is an arbitrary X.509 certificate
+    private static final String CERT_FILE = "trusted.pem";
+
+    public static final void main(String[] args) throws Exception {
+
+        // Testing empty keystores
+
+        init("empty.jks", "JKS");
+        init("empty.jceks", "JCEKS");
+        init("empty.p12", "PKCS12");
+
+        load("empty.jks", "JKS");
+        load("empty.jceks", "JCEKS");
+        load("empty.p12", "PKCS12");
+        load("empty.p12", "JKS"); // test compatibility mode
+        load("empty.jks", "PKCS12", true); // test without compatibility mode
+        load("empty.jks", "JKS", false); // test without compatibility mode
+        load("empty.p12", "JKS", true); // test without compatibility mode
+        load("empty.p12", "PKCS12", false); // test without compatibility mode
+
+        build("empty.jks", "JKS", true);
+        build("empty.jks", "JKS", false);
+        build("empty.jceks", "JCEKS", true);
+        build("empty.jceks", "JCEKS", false);
+        build("empty.p12", "PKCS12", true);
+        build("empty.p12", "PKCS12", false);
+
+        // Testing keystores containing an X.509 certificate
+
+        X509Certificate cert = loadCertificate(CERT_FILE);
+        init("onecert.jks", "JKS", cert);
+        init("onecert.jceks", "JCEKS", cert);
+        init("onecert.p12", "PKCS12", cert);
+
+        load("onecert.jks", "JKS");
+        load("onecert.jceks", "JCEKS");
+        load("onecert.p12", "PKCS12");
+        load("onecert.p12", "JKS"); // test compatibility mode
+        load("onecert.jks", "PKCS12", true); // test without compatibility mode
+        load("onecert.jks", "JKS", false); // test without compatibility mode
+        load("onecert.p12", "JKS", true); // test without compatibility mode
+        load("onecert.p12", "PKCS12", false); // test without compatibility mode
+
+        build("onecert.jks", "JKS", true);
+        build("onecert.jks", "JKS", false);
+        build("onecert.jceks", "JCEKS", true);
+        build("onecert.jceks", "JCEKS", false);
+        build("onecert.p12", "PKCS12", true);
+        build("onecert.p12", "PKCS12", false);
+
+        // Testing keystores containing a secret key
+
+        SecretKey key = generateSecretKey("AES", 128);
+        init("onekey.jceks", "JCEKS", key);
+        init("onekey.p12", "PKCS12", key);
+
+        load("onekey.jceks", "JCEKS");
+        load("onekey.p12", "PKCS12");
+        load("onekey.p12", "JKS"); // test compatibility mode
+        load("onekey.p12", "JKS", true); // test without compatibility mode
+        load("onekey.p12", "PKCS12", false); // test without compatibility mode
+
+        build("onekey.jceks", "JCEKS", true);
+        build("onekey.jceks", "JCEKS", false);
+        build("onekey.p12", "PKCS12", true);
+        build("onekey.p12", "PKCS12", false);
+
+        System.out.println("OK.");
+    }
+
+    // Instantiate an empty keystore using the supplied keystore type
+    private static void init(String file, String type) throws Exception {
+        KeyStore ks = KeyStore.getInstance(type);
+        ks.load(null, null);
+        try (OutputStream stream = new FileOutputStream(file)) {
+            ks.store(stream, PASSWORD);
+        }
+        System.out.println("Created a " + type + " keystore named '" + file + "'");
+    }
+
+    // Instantiate a keystore using the supplied keystore type & create an entry
+    private static void init(String file, String type, X509Certificate cert)
+        throws Exception {
+        KeyStore ks = KeyStore.getInstance(type);
+        ks.load(null, null);
+        ks.setEntry("mycert", new KeyStore.TrustedCertificateEntry(cert), null);
+        try (OutputStream stream = new FileOutputStream(file)) {
+            ks.store(stream, PASSWORD);
+        }
+        System.out.println("Created a " + type + " keystore named '" + file + "'");
+    }
+
+    // Instantiate a keystore using the supplied keystore type & create an entry
+    private static void init(String file, String type, SecretKey key)
+        throws Exception {
+        KeyStore ks = KeyStore.getInstance(type);
+        ks.load(null, null);
+        ks.setEntry("mykey", new KeyStore.SecretKeyEntry(key),
+            new PasswordProtection(PASSWORD));
+        try (OutputStream stream = new FileOutputStream(file)) {
+            ks.store(stream, PASSWORD);
+        }
+        System.out.println("Created a " + type + " keystore named '" + file + "'");
+    }
+
+    // Instantiate a keystore by probing the supplied file for the keystore type
+    private static void build(String file, String type, boolean usePassword)
+        throws Exception {
+
+        Builder builder;
+        if (usePassword) {
+            builder = Builder.newInstance(type, null, new File(file),
+                new PasswordProtection(PASSWORD));
+        } else {
+            builder = Builder.newInstance(type, null, new File(file),
+                new CallbackHandlerProtection(new DummyHandler()));
+        }
+        KeyStore ks = builder.getKeyStore();
+        if (!type.equalsIgnoreCase(ks.getType())) {
+            throw new Exception("ERROR: expected a " + type + " keystore, " +
+                "got a " + ks.getType() + " keystore instead");
+        } else {
+            System.out.println("Built a " + type + " keystore named '" + file + "'");
+        }
+    }
+
+    // Load the keystore entries
+    private static void load(String file, String type) throws Exception {
+        KeyStore ks = KeyStore.getInstance(type);
+        try (InputStream stream = new FileInputStream(file)) {
+            ks.load(stream, PASSWORD);
+        }
+        if (!type.equalsIgnoreCase(ks.getType())) {
+            throw new Exception("ERROR: expected a " + type + " keystore, " +
+                "got a " + ks.getType() + " keystore instead");
+        } else {
+            System.out.println("Loaded a " + type + " keystore named '" + file + "'");
+        }
+    }
+
+    // Load the keystore entries (with compatibility mode disabled)
+    private static void load(String file, String type, boolean expectFailure)
+        throws Exception {
+        Security.setProperty("keystore.type.compat", "false");
+        try {
+            load(file, type);
+            if (expectFailure) {
+                throw new Exception("ERROR: expected load to fail but it didn't");
+            }
+        } catch (IOException e) {
+            if (expectFailure) {
+                System.out.println("Failed to load a " + type + " keystore named '" + file + "' (as expected)");
+            } else {
+                throw e;
+            }
+        } finally {
+            Security.setProperty("keystore.type.compat", "true");
+        }
+    }
+
+    // Read an X.509 certificate from the supplied file
+    private static X509Certificate loadCertificate(String certFile)
+        throws Exception {
+        X509Certificate cert = null;
+        try (FileInputStream certStream =
+            new FileInputStream(DIR + "/" + certFile)) {
+            CertificateFactory factory =
+                CertificateFactory.getInstance("X.509");
+            return (X509Certificate) factory.generateCertificate(certStream);
+        }
+    }
+
+    // Generate a secret key using the supplied algorithm name and key size
+    private static SecretKey generateSecretKey(String algorithm, int size)
+        throws NoSuchAlgorithmException {
+        KeyGenerator generator = KeyGenerator.getInstance(algorithm);
+        generator.init(size);
+        return generator.generateKey();
+    }
+
+    private static class DummyHandler implements CallbackHandler {
+        public void handle(Callback[] callbacks)
+            throws IOException, UnsupportedCallbackException {
+            System.out.println("** Callbackhandler invoked");
+            for (int i = 0; i < callbacks.length; i++) {
+                Callback cb = callbacks[i];
+                if (cb instanceof PasswordCallback) {
+                    PasswordCallback pcb = (PasswordCallback)cb;
+                    pcb.setPassword(PASSWORD);
+                    break;
+                }
+            }
+        }
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/java/security/KeyStore/trusted.pem	Tue Nov 21 08:27:06 2017 +0000
@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
+MIIF5DCCBMygAwIBAgIQGVCD3zqdD1ZMZZ/zLAPnQzANBgkqhkiG9w0BAQUFADCBvDELMAkGA1UE
+BhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZWZXJpU2lnbiBUcnVzdCBO
+ZXR3b3JrMTswOQYDVQQLEzJUZXJtcyBvZiB1c2UgYXQgaHR0cHM6Ly93d3cudmVyaXNpZ24uY29t
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+ciBDQSAtIEczMB4XDTEyMDcxMDAwMDAwMFoXDTEzMDczMTIzNTk1OVowgbgxCzAJBgNVBAYTAlVT
+MRMwEQYDVQQIEwpDYWxpZm9ybmlhMRcwFQYDVQQHFA5SZWR3b29kIFNob3JlczEbMBkGA1UEChQS
+T3JhY2xlIENvcnBvcmF0aW9uMRIwEAYDVQQLFAlHbG9iYWwgSVQxMzAxBgNVBAsUKlRlcm1zIG9m
+IHVzZSBhdCB3d3cudmVyaXNpZ24uY29tL3JwYSAoYykwNTEVMBMGA1UEAxQMKi5vcmFjbGUuY29t
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz/dOCGrWzPj62q0ZkF59Oj9Fli4wHAuX
+U4/S0yBXF8j6K7TKWFTQkGZt3+08KUhmLm1CE1DbbyRJT292YNXYXunNaKdABob8kaBO/NESUOEJ
+0SZh7fd0xCSJAAPiwOMrM5jLeb/dEpU6nP74Afrhu5ffvKdcvTRGguj9H2oVsisTK8Z1HsiiwcJG
+JXcrjvdCZoPU4FHvK03XZPAqPHKNSaJOrux6kRIWYjQMlmL+qDOb0nNHa6gBdi+VqqJHJHeAM677
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+VR0PBAQDAgWgMEQGA1UdIAQ9MDswOQYLYIZIAYb4RQEHFwMwKjAoBggrBgEFBQcCARYcaHR0cHM6
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+KwYBBQUHAQwEYjBgoV6gXDBaMFgwVhYJaW1hZ2UvZ2lmMCEwHzAHBgUrDgMCGgQUS2u5KJYGDLvQ
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+AQUFBwEBBGYwZDAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AudmVyaXNpZ24uY29tMDwGCCsGAQUF
+BzAChjBodHRwOi8vc3ZyaW50bC1nMy1haWEudmVyaXNpZ24uY29tL1NWUkludGxHMy5jZXIwQQYD
+VR0fBDowODA2oDSgMoYwaHR0cDovL3N2cmludGwtZzMtY3JsLnZlcmlzaWduLmNvbS9TVlJJbnRs
+RzMuY3JsMB8GA1UdIwQYMBaAFNebfNgioBX33a1fzimbWMO8RgC1MA0GCSqGSIb3DQEBBQUAA4IB
+AQAITRBlEo+qXLwCL53Db2BGnhDgnSomjne8aCmU7Yt4Kp91tzJdhNuaC/wwDuzD2dPJqzemae3s
+wKiOXrmDQZDj9NNTdkrXHnCvDR4TpOynWe3zBa0bwKnV2cIRKcv482yV53u0kALyFZbagYPwOOz3
+YJA/2SqdcDn9Ztc/ABQ1SkyXyA5j4LJdf2g7BtYrFxjy0RG6We2iM781WSB/9MCNKyHgiwd3KpLf
+urdSKLzy1elNAyt1P3UHwBIIvZ6sJIr/eeELc54Lxt6PtQCXx8qwxYTYXWPXbLgKBHdebgrmAbPK
+TfD69wysvjk6vwSHjmvaqB4R4WRcgkuT+1gxx+ve
+-----END CERTIFICATE-----