HHH-7066 byte arrays to String conversion benefits from initial buffer size

Author: Sanne

hibernate-core/src/main/java/org/hibernate/type/descriptor/java/DataHelper.java

@@ -73,9 +73,9 @@ public static String extractString(Reader reader) {
  */
 public static String extractString(Reader reader, int lengthHint) {
 // read the Reader contents into a buffer and return the complete string
-final StringBuilder stringBuilder = new StringBuilder( lengthHint );
+final int bufferSize = Math.min( lengthHint, 2048 );
+final StringBuilder stringBuilder = new StringBuilder( bufferSize );
 try {
-final int bufferSize = Math.min( lengthHint, 2048 );
 char[] buffer = new char[bufferSize];
 while (true) {
 int amountRead = reader.read( buffer, 0, bufferSize );

hibernate-core/src/main/java/org/hibernate/type/descriptor/java/PrimitiveByteArrayTypeDescriptor.java

@@ -62,7 +62,7 @@ public int extractHashCode(byte[] bytes) {
 }
 
 public String toString(byte[] bytes) {
-final StringBuffer buf = new StringBuffer();
+final StringBuilder buf = new StringBuilder( bytes.length * 2 );
 for ( byte aByte : bytes ) {
 final String hexStr = Integer.toHexString( aByte - Byte.MIN_VALUE );
 if ( hexStr.length() == 1 ) {