Fixed issue when redirected token contains named instance in servername

src/main/java/com/microsoft/sqlserver/jdbc/FailOverInfo.java

@@ -5,7 +5,6 @@
 
 package com.microsoft.sqlserver.jdbc;
 
-import java.io.Serializable;
 import java.text.MessageFormat;
 import java.util.logging.Level;
 
@@ -108,49 +107,3 @@ synchronized void failoverAdd(SQLServerConnection connection, boolean actualUseF
         }
     }
 }
-
-
-// A simple readonly placeholder class to store the current server info.
-// We need this class so during a connection open we can keep a copy of the current failover info stable
-// This is also used to keep the standalone primary server connection information.
-//
-final class ServerPortPlaceHolder implements Serializable {
-    /**
-     * Always update serialVersionUID when prompted.
-     */
-    private static final long serialVersionUID = 7393779415545731523L;
-
-    private final String serverName;
-    private final int port;
-    private final String instanceName;
-    private final boolean checkLink;
-    private final SQLServerConnectionSecurityManager securityManager;
-
-    ServerPortPlaceHolder(String name, int conPort, String instance, boolean fLink) {
-        serverName = name;
-        port = conPort;
-        instanceName = instance;
-        checkLink = fLink;
-        securityManager = new SQLServerConnectionSecurityManager(serverName, port);
-        doSecurityCheck();
-    }
-
-    // accessors
-    int getPortNumber() {
-        return port;
-    }
-
-    String getServerName() {
-        return serverName;
-    }
-
-    String getInstanceName() {
-        return instanceName;
-    }
-
-    void doSecurityCheck() {
-        securityManager.checkConnect();
-        if (checkLink)
-            securityManager.checkLink();
-    }
-}

src/main/java/com/microsoft/sqlserver/jdbc/IOBuffer.java

@@ -4030,8 +4030,7 @@ void writeNonUnicodeReader(Reader reader, long advertisedLength, boolean isDestB
 
         do {
             // Read in next chunk
-            for (charsToWrite = 0; -1 != charsRead && charsToWrite < currentPacketSize;
-                    charsToWrite += charsRead) {
+            for (charsToWrite = 0; -1 != charsRead && charsToWrite < currentPacketSize; charsToWrite += charsRead) {
                 try {
                     charsRead = reader.read(streamCharBuffer, charsToWrite, currentPacketSize - charsToWrite);
                 } catch (IOException e) {

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java

@@ -2815,9 +2815,9 @@ private InetSocketAddress connectHelper(ServerPortPlaceHolder serverInfo, int ti
 
         // if the timeout is infinite slices are infinite too.
         tdsChannel = new TDSChannel(this);
-        InetSocketAddress inetSocketAddress = tdsChannel.open(serverInfo.getServerName(), serverInfo.getPortNumber(),
-                (0 == timeOutFullInSeconds) ? 0 : timeOutSliceInMillis, useParallel, useTnir, isTnirFirstAttempt,
-                timeOutsliceInMillisForFullTimeout);
+        InetSocketAddress inetSocketAddress = tdsChannel.open(serverInfo.getParsedServerName(),
+                serverInfo.getPortNumber(), (0 == timeOutFullInSeconds) ? 0 : timeOutSliceInMillis, useParallel,
+                useTnir, isTnirFirstAttempt, timeOutsliceInMillisForFullTimeout);
 
         setState(State.Connected);
 
@@ -2828,8 +2828,8 @@ private InetSocketAddress connectHelper(ServerPortPlaceHolder serverInfo, int ti
 
         // If prelogin negotiated SSL encryption then, enable it on the TDS channel.
         if (TDS.ENCRYPT_NOT_SUP != negotiatedEncryptionLevel) {
-            tdsChannel.enableSSL(serverInfo.getServerName(), serverInfo.getPortNumber(), clientCertificate, clientKey,
-                    clientKeyPassword);
+            tdsChannel.enableSSL(serverInfo.getParsedServerName(), serverInfo.getPortNumber(), clientCertificate,
+                    clientKey, clientKeyPassword);
             clientKeyPassword = "";
         }
 
@@ -4365,13 +4365,20 @@ final void processEnvChange(TDSReader tdsReader) throws SQLServerException {
                     }
                 }
 
-                isRoutedInCurrentAttempt = true;
-                routingInfo = new ServerPortPlaceHolder(routingServerName, routingPortNumber, null, integratedSecurity);
+                int px = routingServerName.indexOf('\\');
+                String routingInstanceName = null;
+                if (px >= 0) {
+                    routingInstanceName = routingServerName.substring(px + 1, routingServerName.length());
+                }
 
+                isRoutedInCurrentAttempt = true;
+                routingInfo = new ServerPortPlaceHolder(routingServerName, routingPortNumber, routingInstanceName,
+                        integratedSecurity);
                 break;
 
             // Error on unrecognized, unused ENVCHANGES
             default:
+
                 if (connectionlogger.isLoggable(Level.WARNING)) {
                     connectionlogger.warning(toString() + " Unknown environment change: " + envchange);
                 }
@@ -5228,10 +5235,10 @@ final boolean complete(LogonCommand logonCommand, TDSReader tdsReader) throws SQ
                                                                         // fails
                 TDS.LOGIN_OPTION2_ODBC_ON | // Use ODBC defaults (ANSI_DEFAULTS ON, IMPLICIT_TRANSACTIONS OFF, TEXTSIZE
                                             // inf, ROWCOUNT inf)
-                (replication ? TDS.LOGIN_OPTION2_USER_SQLREPL_ON : TDS.LOGIN_OPTION2_USER_SQLREPL_OFF) |
-                (integratedSecurity ? // integrated security if integratedSecurity requested
-                                    TDS.LOGIN_OPTION2_INTEGRATED_SECURITY_ON
-                                    : TDS.LOGIN_OPTION2_INTEGRATED_SECURITY_OFF)));
+                (replication ? TDS.LOGIN_OPTION2_USER_SQLREPL_ON : TDS.LOGIN_OPTION2_USER_SQLREPL_OFF)
+                | (integratedSecurity ? // integrated security if integratedSecurity requested
+                                      TDS.LOGIN_OPTION2_INTEGRATED_SECURITY_ON
+                                      : TDS.LOGIN_OPTION2_INTEGRATED_SECURITY_OFF)));
 
         // TypeFlags
         tdsWriter.writeByte((byte) (TDS.LOGIN_SQLTYPE_DEFAULT | (applicationIntent != null

src/main/java/com/microsoft/sqlserver/jdbc/ServerPortPlaceHolder.java

@@ -0,0 +1,65 @@
+/*
+ * Microsoft JDBC Driver for SQL Server Copyright(c) Microsoft Corporation All rights reserved. This program is made
+ * available under the terms of the MIT License. See the LICENSE file in the project root for more information.
+ */
+
+package com.microsoft.sqlserver.jdbc;
+
+import java.io.Serializable;
+
+
+/**
+ * A simple readonly placeholder class to store the current server info. We need this class so during a connection open
+ * we can keep a copy of the current failover info stable This is also used to keep the standalone primary server
+ * connection information.
+ */
+final class ServerPortPlaceHolder implements Serializable {
+    /**
+     * Always update serialVersionUID when prompted.
+     */
+    private static final long serialVersionUID = 7393779415545731523L;
+
+    private final String serverName;
+    private final String parsedServerName;
+    private final int port;
+    private final String instanceName;
+    private final boolean checkLink;
+    private final SQLServerConnectionSecurityManager securityManager;
+
+    ServerPortPlaceHolder(String name, int conPort, String instance, boolean fLink) {
+        serverName = name;
+
+        // serverName without named instance
+        int px = serverName.indexOf('\\');
+        parsedServerName = (px >= 0) ? serverName.substring(0, px) : serverName;
+
+        port = conPort;
+        instanceName = instance;
+        checkLink = fLink;
+        securityManager = new SQLServerConnectionSecurityManager(serverName, port);
+        doSecurityCheck();
+    }
+
+    // accessors
+    int getPortNumber() {
+        return port;
+    }
+
+    String getServerName() {
+        return serverName;
+    }
+
+    String getInstanceName() {
+        return instanceName;
+    }
+
+    String getParsedServerName() {
+        return parsedServerName;
+    }
+
+    void doSecurityCheck() {
+        securityManager.checkConnect();
+        if (checkLink)
+            securityManager.checkLink();
+    }
+}