fix test in multithreaded mode

h2/src/test/org/h2/test/jdbc/TestMetaData.java

@@ -578,8 +578,10 @@ public class TestMetaData extends TestBase {
                 Connection.TRANSACTION_NONE));
         assertTrue(meta.supportsTransactionIsolationLevel(
                 Connection.TRANSACTION_READ_COMMITTED));
-        assertTrue(meta.supportsTransactionIsolationLevel(
-                Connection.TRANSACTION_READ_UNCOMMITTED));
+        if (!config.multiThreaded) {
+            assertTrue(meta.supportsTransactionIsolationLevel(
+                    Connection.TRANSACTION_READ_UNCOMMITTED));
+        }
         assertTrue(meta.supportsTransactionIsolationLevel(
                 Connection.TRANSACTION_REPEATABLE_READ));
         assertTrue(meta.supportsTransactionIsolationLevel(

h2/src/test/org/h2/test/mvcc/TestMvcc4.java

@@ -127,7 +127,7 @@ public class TestMvcc4 extends TestBase {
      *
      * @param t the thread
      */
-    static void waitForThreadToBlockOnDB(Thread t) {
+    void waitForThreadToBlockOnDB(Thread t) {
         while (true) {
             // sleep the first time through the loop so we give the main thread a chance
             try {
@@ -141,7 +141,7 @@ public class TestMvcc4 extends TestBase {
             StackTraceElement[] elements = threadMap.get(t);
             if (elements != null
                     && elements.length > 1
-                    && "wait".equals(elements[0].getMethodName())
+                    && (config.multiThreaded ? "sleep".equals(elements[0].getMethodName()) : "wait".equals(elements[0].getMethodName()))
                     && "filterConcurrentUpdate".equals(elements[1].getMethodName())) {
                 return;
             }