remove some dead semicolons and fix a javadoc

h2/src/main/org/h2/mvstore/MVStore.java

@@ -1110,7 +1110,6 @@ public class MVStore {
      * @return if there are any changes
      */
     public boolean hasUnsavedChanges() {
-        ;
         // TODO maybe private; rename to hasUncommittedChanges
         
         checkOpen();
@@ -1689,7 +1688,6 @@ public class MVStore {
      * Revert to the beginning of the current version.
      */
     public void rollback() {
-        ;
         // TODO document and test
         
         rollbackTo(currentVersion);
@@ -1976,7 +1974,6 @@ public class MVStore {
      * @param millis the maximum delay
      */
     public void setWriteDelay(int millis) {
-        ; 
         // TODO rename to commitDelay
         if (writeDelay == millis) {
             return;

h2/src/main/org/h2/mvstore/db/MVSpatialIndex.java

@@ -214,7 +214,7 @@ public class MVSpatialIndex extends BaseIndex implements SpatialIndex {
     /**
      * Get the row with the given index key.
      *
-     * @param array the index key
+     * @param key the index key
      * @return the row
      */
     SearchRow getRow(SpatialKey key) {

h2/src/test/org/h2/test/TestAll.java

@@ -232,7 +232,6 @@ java org.h2.test.TestAll timer
 
 */
 
-    ;
     private static final boolean MV_STORE = true;
 
     /**