Remove SSLPerformanceTest and DatabaseSessionCache.

These aren't being run.

Change-Id: I9afc617a424c675578185ac66a4f6ac3af9afacf

2 files changed, 0 insertions, 744 deletions

diff --git a/tests/CoreTests/android/core/DatabaseSessionCache.java b/tests/CoreTests/android/core/DatabaseSessionCache.java
deleted file mode 100644
index 040a13e..0000000
--- a/tests/CoreTests/android/core/DatabaseSessionCache.java
+++ /dev/null
@@ -1,312 +0,0 @@
-// Copyright 2009 The Android Open Source Project
-
-package android.core;
-
-import android.database.Cursor;
-import android.database.SQLException;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteOpenHelper;
-import android.util.Log;
-import android.content.ContentValues;
-import android.content.Context;
-
-import org.apache.commons.codec.binary.Base64;
-import org.apache.harmony.xnet.provider.jsse.SSLClientSessionCache;
-
-import java.util.LinkedHashMap;
-import java.util.Map;
-
-import javax.net.ssl.SSLSession;
-
-/**
- * Hook into harmony SSL cache to persist the SSL sessions.
- *
- * Current implementation is suitable for saving a small number of hosts -
- * like google services. It can be extended with expiration and more features
- * to support more hosts.
- *
- * {@hide}
- */
-public class DatabaseSessionCache implements SSLClientSessionCache {
-    private static final String TAG = "SslSessionCache";
-    static DatabaseHelper sDefaultDatabaseHelper;
-
-    private DatabaseHelper mDatabaseHelper;
-
-    /**
-     * Table where sessions are stored.
-     */
-    public static final String SSL_CACHE_TABLE = "ssl_sessions";
-
-    private static final String SSL_CACHE_ID = "_id";
-
-    /**
-     * Key is host:port - port is not optional.
-     */
-    private static final String SSL_CACHE_HOSTPORT = "hostport";
-
-    /**
-     * Base64-encoded DER value of the session.
-     */
-    private static final String SSL_CACHE_SESSION = "session";
-
-    /**
-     * Time when the record was added - should be close to the time
-     * of the initial session negotiation.
-     */
-    private static final String SSL_CACHE_TIME_SEC = "time_sec";
-
-    public static final String DATABASE_NAME = "ssl_sessions.db";
-
-    public static final int DATABASE_VERSION = 1;
-
-    /** public for testing
-     */
-    public static final int SSL_CACHE_ID_COL = 0;
-    public static final int SSL_CACHE_HOSTPORT_COL = 1;
-    public static final int SSL_CACHE_SESSION_COL = 2;
-    public static final int SSL_CACHE_TIME_SEC_COL = 3;
-
-    private static final String SAVE_ON_ADD = "save_on_add";
-
-    static boolean sHookInitializationDone = false;
-
-    public static final int MAX_CACHE_SIZE = 256;
-
-    private static final Map<String, byte[]> mExternalCache =
-        new LinkedHashMap<String, byte[]>(MAX_CACHE_SIZE, 0.75f, true) {
-        @Override
-        public boolean removeEldestEntry(
-                Map.Entry<String, byte[]> eldest) {
-            boolean shouldDelete = this.size() > MAX_CACHE_SIZE;
-
-            // TODO: delete from DB
-            return shouldDelete;
-        }
-    };
-    static boolean mNeedsCacheLoad = true;
-
-    public static final String[] PROJECTION = new String[] {
-      SSL_CACHE_ID,
-      SSL_CACHE_HOSTPORT,
-      SSL_CACHE_SESSION,
-      SSL_CACHE_TIME_SEC
-    };
-
-    /**
-     * This class needs to be installed as a hook, if the security property
-     * is set. Getting the right classloader may be fun since we don't use
-     * Provider to get its classloader, but in android this is in same
-     * loader with AndroidHttpClient.
-     *
-     * This constructor will use the default database. You must
-     * call init() before to specify the context used for the database and
-     * check settings.
-     */
-    public DatabaseSessionCache() {
-        Log.v(TAG, "Instance created.");
-        // May be null if caching is disabled - no sessions will be persisted.
-        this.mDatabaseHelper = sDefaultDatabaseHelper;
-    }
-
-    /**
-     * Create a SslSessionCache instance, using the specified context to
-     * initialize the database.
-     *
-     * This constructor will use the default database - created the first
-     * time.
-     *
-     * @param activityContext
-     */
-    public DatabaseSessionCache(Context activityContext) {
-        // Static init - only one initialization will happen.
-        // Each SslSessionCache is using the same DB.
-        init(activityContext);
-        // May be null if caching is disabled - no sessions will be persisted.
-        this.mDatabaseHelper = sDefaultDatabaseHelper;
-    }
-
-    /**
-     * Create a SslSessionCache that uses a specific database.
-     *
-     * @param database
-     */
-    public DatabaseSessionCache(DatabaseHelper database) {
-        this.mDatabaseHelper = database;
-    }
-
-//    public static boolean enabled(Context androidContext) {
-//        String sslCache = Settings.Secure.getString(androidContext.getContentResolver(),
-//                Settings.Secure.SSL_SESSION_CACHE);
-//
-//        if (Log.isLoggable(TAG, Log.DEBUG)) {
-//            Log.d(TAG, "enabled " + sslCache + " " + androidContext.getPackageName());
-//        }
-//
-//        return SAVE_ON_ADD.equals(sslCache);
-//    }
-
-    /**
-     * You must call this method to enable SSL session caching for an app.
-     */
-    public synchronized static void init(Context activityContext) {
-        // It is possible that multiple provider will try to install this hook.
-        // We want a single db per VM.
-        if (sHookInitializationDone) {
-            return;
-        }
-
-
-//        // More values can be added in future to provide different
-//        // behaviours, like 'batch save'.
-//        if (enabled(activityContext)) {
-            Context appContext = activityContext.getApplicationContext();
-            sDefaultDatabaseHelper = new DatabaseHelper(appContext);
-
-            // Set default SSLSocketFactory
-            // The property is defined in the javadocs for javax.net.SSLSocketFactory
-            // (no constant defined there)
-            // This should cover all code using SSLSocketFactory.getDefault(),
-            // including native http client and apache httpclient.
-            // MCS is using its own custom factory - will need special code.
-//            Security.setProperty("ssl.SocketFactory.provider",
-//                    SslSocketFactoryWithCache.class.getName());
-//        }
-
-        // Won't try again.
-        sHookInitializationDone = true;
-    }
-
-    public void putSessionData(SSLSession session, byte[] der) {
-        if (mDatabaseHelper == null) {
-            return;
-        }
-        if (mExternalCache.size() > MAX_CACHE_SIZE) {
-            // remove oldest.
-            Cursor byTime = mDatabaseHelper.getWritableDatabase().query(SSL_CACHE_TABLE,
-                    PROJECTION, null, null, null, null, SSL_CACHE_TIME_SEC);
-            byTime.moveToFirst();
-            // TODO: can I do byTime.deleteRow() ?
-            String hostPort = byTime.getString(SSL_CACHE_HOSTPORT_COL);
-
-            mDatabaseHelper.getWritableDatabase().delete(SSL_CACHE_TABLE,
-                    SSL_CACHE_HOSTPORT + "= ?" , new String[] { hostPort });
-        }
-        // Serialize native session to standard DER encoding
-        long t0 = System.currentTimeMillis();
-
-        String b64 = new String(Base64.encodeBase64(der));
-        String key = session.getPeerHost() + ":" + session.getPeerPort();
-
-        ContentValues values = new ContentValues();
-        values.put(SSL_CACHE_HOSTPORT, key);
-        values.put(SSL_CACHE_SESSION, b64);
-        values.put(SSL_CACHE_TIME_SEC, System.currentTimeMillis() / 1000);
-
-        synchronized (this.getClass()) {
-            mExternalCache.put(key, der);
-
-            try {
-                mDatabaseHelper.getWritableDatabase().insert(SSL_CACHE_TABLE, null /*nullColumnHack */ , values);
-            } catch(SQLException ex) {
-                // Ignore - nothing we can do to recover, and caller shouldn't
-                // be affected.
-                Log.w(TAG, "Ignoring SQL exception when caching session", ex);
-            }
-        }
-        if (Log.isLoggable(TAG, Log.DEBUG)) {
-            long t1 = System.currentTimeMillis();
-            Log.d(TAG, "New SSL session " + session.getPeerHost() +
-                    " DER len: " + der.length + " " + (t1 - t0));
-        }
-
-    }
-
-    public byte[] getSessionData(String host, int port) {
-        // Current (simple) implementation does a single lookup to DB, then saves
-        // all entries to the cache.
-
-        // This works for google services - i.e. small number of certs.
-        // If we extend this to all processes - we should hold a separate cache
-        // or do lookups to DB each time.
-        if (mDatabaseHelper == null) {
-            return null;
-        }
-        synchronized(this.getClass()) {
-            if (mNeedsCacheLoad) {
-                // Don't try to load again, if something is wrong on the first
-                // request it'll likely be wrong each time.
-                mNeedsCacheLoad = false;
-                long t0 = System.currentTimeMillis();
-
-                Cursor cur = null;
-                try {
-                    cur = mDatabaseHelper.getReadableDatabase().query(SSL_CACHE_TABLE, PROJECTION, null,
-                            null, null, null, null);
-                    if (cur.moveToFirst()) {
-                        do {
-                            String hostPort = cur.getString(SSL_CACHE_HOSTPORT_COL);
-                            String value = cur.getString(SSL_CACHE_SESSION_COL);
-
-                            if (hostPort == null || value == null) {
-                                continue;
-                            }
-                            // TODO: blob support ?
-                            byte[] der = Base64.decodeBase64(value.getBytes());
-                            mExternalCache.put(hostPort, der);
-                        } while (cur.moveToNext());
-
-                    }
-                } catch (SQLException ex) {
-                    Log.d(TAG, "Error loading SSL cached entries ", ex);
-                } finally {
-                    if (cur != null) {
-                        cur.close();
-                    }
-                    if (Log.isLoggable(TAG, Log.DEBUG)) {
-                        long t1 = System.currentTimeMillis();
-                        Log.d(TAG, "LOADED CACHED SSL " + (t1 - t0) + " ms");
-                    }
-                }
-            }
-
-            String key = host + ":" + port;
-
-            return mExternalCache.get(key);
-        }
-    }
-
-    public byte[] getSessionData(byte[] id) {
-        // We support client side only - the cache will do nothing on client.
-        return null;
-    }
-
-    /** Visible for testing.
-     */
-    public static class DatabaseHelper extends SQLiteOpenHelper {
-
-        public DatabaseHelper(Context context) {
-            super(context, DATABASE_NAME, null /* factory */, DATABASE_VERSION);
-        }
-
-        @Override
-        public void onCreate(SQLiteDatabase db) {
-            db.execSQL("CREATE TABLE " + SSL_CACHE_TABLE + " (" +
-                    SSL_CACHE_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
-                    SSL_CACHE_HOSTPORT + " TEXT UNIQUE ON CONFLICT REPLACE," +
-                    SSL_CACHE_SESSION + " TEXT," +
-                    SSL_CACHE_TIME_SEC + " INTEGER" +
-            ");");
-            db.execSQL("CREATE INDEX ssl_sessions_idx1 ON ssl_sessions (" +
-                    SSL_CACHE_HOSTPORT + ");");
-        }
-
-        @Override
-        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
-            db.execSQL("DROP TABLE IF EXISTS " + SSL_CACHE_TABLE );
-            onCreate(db);
-        }
-
-    }
-
-}
diff --git a/tests/CoreTests/android/core/SSLPerformanceTest.java b/tests/CoreTests/android/core/SSLPerformanceTest.java
deleted file mode 100644
index 5b5be0a..0000000
--- a/tests/CoreTests/android/core/SSLPerformanceTest.java
+++ /dev/null
@@ -1,432 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.core;
-
-import android.test.AndroidTestCase;
-import android.os.Debug;
-import org.apache.harmony.xnet.provider.jsse.FileClientSessionCache;
-import org.apache.harmony.xnet.provider.jsse.OpenSSLContextImpl;
-import org.apache.harmony.xnet.provider.jsse.SSLClientSessionCache;
-import org.apache.http.conn.scheme.SchemeRegistry;
-import org.apache.http.conn.scheme.Scheme;
-import org.apache.http.conn.ClientConnectionManager;
-import org.apache.http.conn.ssl.SSLSocketFactory;
-import org.apache.http.impl.conn.SingleClientConnManager;
-import org.apache.http.impl.client.DefaultHttpClient;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.client.ResponseHandler;
-import org.apache.http.client.ClientProtocolException;
-import org.apache.http.HttpResponse;
-
-import javax.net.ssl.SSLSession;
-import javax.net.ssl.SSLSessionContext;
-import java.io.File;
-import java.io.IOException;
-import java.lang.reflect.Method;
-import java.lang.reflect.InvocationTargetException;
-import java.security.cert.Certificate;
-import java.security.Principal;
-import java.security.KeyManagementException;
-import java.util.Arrays;
-
-public class SSLPerformanceTest extends AndroidTestCase {
-
-    static final byte[] SESSION_DATA = new byte[6000];
-    static {
-        for (int i = 0; i < SESSION_DATA.length; i++) {
-            SESSION_DATA[i] = (byte) i;
-        }
-    }
-
-    static final File dataDir = new File("/data/data/android.core/");
-    static final File filesDir = new File(dataDir, "files");
-    static final File dbDir = new File(dataDir, "databases");
-
-    static final String CACHE_DIR
-            = SSLPerformanceTest.class.getName() + "/cache";
-
-    static final int ITERATIONS = 10;
-
-    public void testCreateNewEmptyDatabase() {
-        deleteDatabase();
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        DatabaseSessionCache cache = new DatabaseSessionCache(getContext());
-        cache.getSessionData("crazybob.org", 443);
-
-        stopwatch.stop();
-    }
-
-    public void testCreateNewEmptyDirectory() throws IOException {
-        deleteDirectory();
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        SSLClientSessionCache cache = FileClientSessionCache.usingDirectory(
-                getCacheDirectory());
-        cache.getSessionData("crazybob.org", 443);
-
-        stopwatch.stop();
-    }
-
-    public void testOpenDatabaseWith10Sessions() {
-        deleteDatabase();
-
-        DatabaseSessionCache cache = new DatabaseSessionCache(getContext());
-        putSessionsIn(cache);
-        closeDatabase();
-
-        System.err.println("Size of ssl_sessions.db w/ 10 sessions: "
-                + new File(dbDir, "ssl_sessions.db").length());
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        cache = new DatabaseSessionCache(getContext());
-        cache.getSessionData("crazybob.org", 443);
-
-        stopwatch.stop();
-    }
-
-    public void testOpenDirectoryWith10Sessions() throws IOException {
-        deleteDirectory();
-
-        SSLClientSessionCache cache = FileClientSessionCache.usingDirectory(
-                getCacheDirectory());
-        putSessionsIn(cache);
-        closeDirectoryCache();
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        cache = FileClientSessionCache.usingDirectory(
-                getCacheDirectory());
-        cache.getSessionData("crazybob.org", 443);
-
-        stopwatch.stop();
-    }
-
-    public void testGetSessionFromDatabase() {
-        deleteDatabase();
-
-        DatabaseSessionCache cache = new DatabaseSessionCache(getContext());
-        cache.putSessionData(new FakeSession("foo"), SESSION_DATA);
-        closeDatabase();
-
-        cache = new DatabaseSessionCache(getContext());
-        cache.getSessionData("crazybob.org", 443);
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        byte[] sessionData = cache.getSessionData("foo", 443);
-
-        stopwatch.stop();
-
-        assertTrue(Arrays.equals(SESSION_DATA, sessionData));
-    }
-
-    public void testGetSessionFromDirectory() throws IOException {
-        deleteDirectory();
-
-        SSLClientSessionCache cache = FileClientSessionCache.usingDirectory(
-                getCacheDirectory());
-        cache.putSessionData(new FakeSession("foo"), SESSION_DATA);
-        closeDirectoryCache();
-
-        cache = FileClientSessionCache.usingDirectory(
-                getCacheDirectory());
-        cache.getSessionData("crazybob.org", 443);
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        byte[] sessionData = cache.getSessionData("foo", 443);
-
-        stopwatch.stop();
-        
-        assertTrue(Arrays.equals(SESSION_DATA, sessionData));
-    }
-
-    public void testPutSessionIntoDatabase() {
-        deleteDatabase();
-
-        DatabaseSessionCache cache = new DatabaseSessionCache(getContext());
-        cache.getSessionData("crazybob.org", 443);
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        cache.putSessionData(new FakeSession("foo"), SESSION_DATA);
-
-        stopwatch.stop();
-    }
-
-    public void testPutSessionIntoDirectory() throws IOException {
-        deleteDirectory();
-
-        SSLClientSessionCache cache = FileClientSessionCache.usingDirectory(
-                getCacheDirectory());
-        cache.getSessionData("crazybob.org", 443);
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        cache.putSessionData(new FakeSession("foo"), SESSION_DATA);
-
-        stopwatch.stop();
-    }
-
-    public void testEngineInit() throws IOException, KeyManagementException {
-        Stopwatch stopwatch = new Stopwatch();
-
-        new OpenSSLContextImpl().engineInit(null, null, null);
-
-        stopwatch.stop();
-    }
-
-    public void testWebRequestWithoutCache() throws IOException,
-            KeyManagementException {
-        OpenSSLContextImpl sslContext = new OpenSSLContextImpl();
-        sslContext.engineInit(null, null, null);
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        getVerisignDotCom(sslContext);
-
-        stopwatch.stop();
-    }
-
-    public void testWebRequestWithFileCache() throws IOException,
-            KeyManagementException {
-        deleteDirectory();
-
-        OpenSSLContextImpl sslContext = new OpenSSLContextImpl();
-        sslContext.engineInit(null, null, null);
-        sslContext.engineGetClientSessionContext().setPersistentCache(
-                FileClientSessionCache.usingDirectory(getCacheDirectory()));
-
-        // Make sure www.google.com is in the cache.
-        getVerisignDotCom(sslContext);
-
-        // Re-initialize so we hit the file cache.
-        sslContext.engineInit(null, null, null);
-        sslContext.engineGetClientSessionContext().setPersistentCache(
-                FileClientSessionCache.usingDirectory(getCacheDirectory()));
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        getVerisignDotCom(sslContext);
-
-        stopwatch.stop();
-    }
-
-    public void testWebRequestWithInMemoryCache() throws IOException,
-            KeyManagementException {
-        deleteDirectory();
-
-        OpenSSLContextImpl sslContext = new OpenSSLContextImpl();
-        sslContext.engineInit(null, null, null);
-
-        // Make sure www.google.com is in the cache.
-        getVerisignDotCom(sslContext);
-
-        Stopwatch stopwatch = new Stopwatch();
-
-        getVerisignDotCom(sslContext);
-
-        stopwatch.stop();
-    }
-
-    private void getVerisignDotCom(OpenSSLContextImpl sslContext)
-            throws IOException {
-        SchemeRegistry schemeRegistry = new SchemeRegistry();
-        schemeRegistry.register(new Scheme("https",
-                new SSLSocketFactory(sslContext.engineGetSocketFactory()),
-                443));
-
-        ClientConnectionManager manager =
-                new SingleClientConnManager(null, schemeRegistry);
-
-        new DefaultHttpClient(manager, null).execute(
-                new HttpGet("https://www.verisign.com"),
-                new ResponseHandler<Object>() {
-                    public Object handleResponse(HttpResponse response)
-                            throws ClientProtocolException, IOException {
-                        return null;
-                    }
-                });
-    }
-
-    private void putSessionsIn(SSLClientSessionCache cache) {
-        for (int i = 0; i < 10; i++) {
-            cache.putSessionData(new FakeSession("host" + i), SESSION_DATA);
-        }
-    }
-
-    private void deleteDatabase() {
-        closeDatabase();
-        if (!new File(dbDir, "ssl_sessions.db").delete()) {
-            System.err.println("Failed to delete database.");
-        }
-    }
-
-    private void closeDatabase() {
-        if (DatabaseSessionCache.sDefaultDatabaseHelper != null) {
-            DatabaseSessionCache.sDefaultDatabaseHelper.close();
-        }
-        DatabaseSessionCache.sDefaultDatabaseHelper = null;
-        DatabaseSessionCache.sHookInitializationDone = false;
-        DatabaseSessionCache.mNeedsCacheLoad = true;
-    }
-
-    private void deleteDirectory() {
-        closeDirectoryCache();
-
-        File dir = getCacheDirectory();
-        if (!dir.exists()) {
-            return;
-        }
-        for (File file : dir.listFiles()) {
-            file.delete();
-        }
-        if (!dir.delete()) {
-            System.err.println("Failed to delete directory.");
-        }
-    }
-
-    private void closeDirectoryCache() {
-        try {
-            Method reset = FileClientSessionCache.class
-                    .getDeclaredMethod("reset");
-            reset.setAccessible(true);
-            reset.invoke(null);
-        } catch (NoSuchMethodException e) {
-            throw new RuntimeException(e);
-        } catch (IllegalAccessException e) {
-            throw new RuntimeException(e);
-        } catch (InvocationTargetException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    private File getCacheDirectory() {
-        return new File(getContext().getFilesDir(), CACHE_DIR);
-    }
-
-    class Stopwatch {
-        {
-            Debug.startAllocCounting();
-        }
-        long start = System.nanoTime();
-
-        void stop() {
-            long elapsed = (System.nanoTime() - start) / 1000;
-            Debug.stopAllocCounting();
-            System.err.println(getName() + ": " + elapsed + "us, "
-                + Debug.getThreadAllocCount() + " allocations, "
-                + Debug.getThreadAllocSize() + " bytes");
-        }
-    }
-}
-
-class FakeSession implements SSLSession {
-    final String host;
-
-    FakeSession(String host) {
-        this.host = host;
-    }
-
-    public int getApplicationBufferSize() {
-        throw new UnsupportedOperationException();
-    }
-
-    public String getCipherSuite() {
-        throw new UnsupportedOperationException();
-    }
-
-    public long getCreationTime() {
-        throw new UnsupportedOperationException();
-    }
-
-    public byte[] getId() {
-        return host.getBytes();
-    }
-
-    public long getLastAccessedTime() {
-        throw new UnsupportedOperationException();
-    }
-
-    public Certificate[] getLocalCertificates() {
-        throw new UnsupportedOperationException();
-    }
-
-    public Principal getLocalPrincipal() {
-        throw new UnsupportedOperationException();
-    }
-
-    public int getPacketBufferSize() {
-        throw new UnsupportedOperationException();
-    }
-
-    public javax.security.cert.X509Certificate[] getPeerCertificateChain() {
-        throw new UnsupportedOperationException();
-    }
-
-    public Certificate[] getPeerCertificates() {
-        throw new UnsupportedOperationException();
-    }
-
-    public String getPeerHost() {
-        return host;
-    }
-
-    public int getPeerPort() {
-        return 443;
-    }
-
-    public Principal getPeerPrincipal() {
-        throw new UnsupportedOperationException();
-    }
-
-    public String getProtocol() {
-        throw new UnsupportedOperationException();
-    }
-
-    public SSLSessionContext getSessionContext() {
-        throw new UnsupportedOperationException();
-    }
-
-    public Object getValue(String name) {
-        throw new UnsupportedOperationException();
-    }
-
-    public String[] getValueNames() {
-        throw new UnsupportedOperationException();
-    }
-
-    public void invalidate() {
-        throw new UnsupportedOperationException();
-    }
-
-    public boolean isValid() {
-        throw new UnsupportedOperationException();
-    }
-
-    public void putValue(String name, Object value) {
-        throw new UnsupportedOperationException();
-    }
-
-    public void removeValue(String name) {
-        throw new UnsupportedOperationException();
-    }
-}