SonarQube analysis

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

@@ -8,7 +8,8 @@
 
 package com.microsoft.sqlserver.jdbc;
 
-import java.util.Vector;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Represents a single encrypted value for a CEK. It contains the encrypted CEK,the store type, name,the key path and encryption algorithm.
@@ -45,19 +46,19 @@ class EncryptionKeyInfo {
 
 /**
  * Represents a unique CEK as an entry in the CekTable. A unique (plaintext is unique) CEK can have multiple encrypted CEKs when using multiple CMKs.
- * These encrypted CEKs are represented by a member vector.
+ * These encrypted CEKs are represented by a member ArrayList.
  */
 class CekTableEntry {
     static final private java.util.logging.Logger aeLogger = java.util.logging.Logger.getLogger("com.microsoft.sqlserver.jdbc.AE");
 
-    Vector<EncryptionKeyInfo> columnEncryptionKeyValues;
+    List<EncryptionKeyInfo> columnEncryptionKeyValues;
     int ordinal;
     int databaseId;
     int cekId;
     int cekVersion;
     byte[] cekMdVersion;
 
-    Vector<EncryptionKeyInfo> getColumnEncryptionKeyValues() {
+    List<EncryptionKeyInfo> getColumnEncryptionKeyValues() {
         return columnEncryptionKeyValues;
     }
 
@@ -87,7 +88,7 @@ byte[] getCekMdVersion() {
         cekId = 0;
         cekVersion = 0;
         cekMdVersion = null;
-        columnEncryptionKeyValues = new Vector<EncryptionKeyInfo>();
+        columnEncryptionKeyValues = new ArrayList<EncryptionKeyInfo>();
     }
 
     int getSize() {

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

@@ -8,6 +8,8 @@
 
 package com.microsoft.sqlserver.jdbc;
 
+import java.util.logging.Level;
+
 class FedAuthDllInfo {
     byte[] accessTokenBytes = null;
     long expiresIn = 0;
@@ -102,7 +104,9 @@ byte[] GenerateClientContext(byte[] pin,
         int failure = SNISecGenClientContext(sniSec, sniSecLen, pin, pin.length, pOut, outsize, done, DNSName, port, null, null, authLogger);
 
         if (failure != 0) {
-            authLogger.warning(toString() + " Authentication failed code : " + failure);
+            if (authLogger.isLoggable(Level.WARNING)) {
+                authLogger.warning(toString() + " Authentication failed code : " + failure);
+            }
             con.terminate(SQLServerException.DRIVER_ERROR_NONE, SQLServerException.getErrString("R_integratedAuthenticationFailed"), linkError);
         }
         // allocate space based on the size returned

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

@@ -415,6 +415,7 @@ else if (SSType.SMALLDATETIME == basicSSType)
                     return JDBCType.GUID;
                 if (SSType.VARCHARMAX == basicSSType)
                     return JDBCType.LONGVARCHAR;
+                return jdbcType;
 
             default:
                 return jdbcType;

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

@@ -120,7 +120,7 @@ static final Object convertLongToObject(long longVal,
                 return new Float(longVal);
             case BINARY:
                 byte[] convertedBytes = convertLongToBytes(longVal);
-                int bytesToReturnLength = 0;
+                int bytesToReturnLength;
                 byte[] bytesToReturn;
 
                 switch (baseSSType) {
@@ -467,7 +467,7 @@ static final Object convertBytesToObject(byte[] bytesValue,
 
                 if ((SSType.BINARY == baseTypeInfo.getSSType()) && (str.length() < (baseTypeInfo.getPrecision() * 2))) {
 
-                    StringBuffer strbuf = new StringBuffer(str);
+                    StringBuilder strbuf = new StringBuilder(str);
 
                     while (strbuf.length() < (baseTypeInfo.getPrecision() * 2)) {
                         strbuf.append('0');
@@ -781,7 +781,7 @@ static final Object convertTemporalToObject(JDBCType jdbcType,
         // For other data types, the date and time parts are assumed to be relative to the local time zone.
         TimeZone componentTimeZone = (SSType.DATETIMEOFFSET == ssType) ? UTC.timeZone : localTimeZone;
 
-        int subSecondNanos = 0;
+        int subSecondNanos;
 
         // The date and time parts assume a Gregorian calendar with Gregorian leap year behavior
         // over the entire supported range of values. Create and initialize such a calendar to
@@ -909,7 +909,7 @@ static final Object convertTemporalToObject(JDBCType jdbcType,
             default:
                 throw new AssertionError("Unexpected SSType: " + ssType);
         }
-        int localMillisOffset = 0;
+        int localMillisOffset;
         if (null == timeZoneCalendar) {
             TimeZone tz = TimeZone.getDefault();
             GregorianCalendar _cal = new GregorianCalendar(componentTimeZone, Locale.US);

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

@@ -88,40 +88,40 @@ static void buildException(int errCode,
         String errMessage = getErrMessage(errCode);
         MessageFormat form = new MessageFormat(SQLServerException.getErrString(errMessage));
 
-        Object[] msgArgs = {null, null, null};
-
-        buildMsgParams(errMessage, msgArgs, param1, param2, param3);
+        String[] msgArgs = buildMsgParams(errMessage, param1, param2, param3);
 
         throw new SQLServerException(null, form.format(msgArgs), null, 0, false);
     }
 
-    private static void buildMsgParams(String errMessage,
-            Object[] msgArgs,
+    private static String[] buildMsgParams(String errMessage,
             String parameter1,
             String parameter2,
             String parameter3) {
 
-        if (errMessage.equalsIgnoreCase("R_AECertLocBad")) {
+        String[] msgArgs = new String[3];
+
+        if ("R_AECertLocBad".equalsIgnoreCase(errMessage)) {
             msgArgs[0] = parameter1;
             msgArgs[1] = parameter1 + "/" + parameter2 + "/" + parameter3;
         }
-        else if (errMessage.equalsIgnoreCase("R_AECertStoreBad")) {
+        else if ("R_AECertStoreBad".equalsIgnoreCase(errMessage)) {
             msgArgs[0] = parameter2;
             msgArgs[1] = parameter1 + "/" + parameter2 + "/" + parameter3;
         }
-        else if (errMessage.equalsIgnoreCase("R_AECertHashEmpty")) {
+        else if ("R_AECertHashEmpty".equalsIgnoreCase(errMessage)) {
             msgArgs[0] = parameter1 + "/" + parameter2 + "/" + parameter3;
-
         }
         else {
             msgArgs[0] = parameter1;
             msgArgs[1] = parameter2;
             msgArgs[2] = parameter3;
         }
+
+        return msgArgs;
     }
 
     private static String getErrMessage(int errCode) {
-        String message = null;
+        String message;
         switch (errCode) {
             case 1:
                 message = "R_AEKeypathEmpty";

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

@@ -1379,20 +1379,19 @@ boolean isUnsupported() {
      * JDBC3 types are expected for SE 5. JDBC4 types are expected for SE 6 and later.
      */
     int asJavaSqlType() {
-        if (Util.SYSTEM_SPEC_VERSION.equals("1.5")) {
+        if ("1.5".equals(Util.SYSTEM_SPEC_VERSION)) {
             switch (this) {
                 case NCHAR:
                     return java.sql.Types.CHAR;
                 case NVARCHAR:
+                case SQLXML:
                     return java.sql.Types.VARCHAR;
                 case LONGNVARCHAR:
                     return java.sql.Types.LONGVARCHAR;
                 case NCLOB:
                     return java.sql.Types.CLOB;
                 case ROWID:
                     return java.sql.Types.OTHER;
-                case SQLXML:
-                    return java.sql.Types.VARCHAR;
                 default:
                     return intValue;
             }

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

@@ -57,8 +57,8 @@ private void setupInfo(SQLServerConnection con) throws SQLServerException {
         else {
             // 3.3006 get the instance name
             int px = failoverPartner.indexOf('\\');
-            String instancePort = null;
-            String instanceValue = null;
+            String instancePort;
+            String instanceValue;
 
             // found the instance name with the severname
             if (px >= 0) {