Documentation

h2/src/main/org/h2/table/RegularTable.java

@@ -433,9 +433,7 @@ public class RegularTable extends TableBase {
         }
         if (!force && database.isMultiVersion()) {
             // MVCC: update, delete, and insert use a shared lock.
-            // Select doesn't lock except when using FOR UPDATE and
-            // the system property h2.selectForUpdateMvcc
-            // is not enabled
+            // Select doesn't lock except when using FOR UPDATE
             if (exclusive) {
                 exclusive = false;
             } else {

h2/src/main/org/h2/util/ScriptReader.java

@@ -77,6 +77,7 @@ public class ScriptReader implements Closeable {
     /**
      * Close the underlying reader.
      */
+    @Override
     public void close() {
         try {
             reader.close();

h2/src/main/org/h2/util/StringUtils.java

@@ -916,6 +916,9 @@ public class StringUtils {
         }
         // create a new object that is not shared
         // (to avoid out of memory if it is a substring of a big String)
+        // (not longer needed for Java 7 update 6 and newer,
+        // but the performance overhead is very small for those
+        // versions where it is not needed)
         // NOPMD
         s = new String(s);
         cache[index] = s;