The ResultSetMetaData methods getSchemaName and getTableName could return null…

The ResultSetMetaData methods getSchemaName and getTableName could return null instead of "" (an empty string) as specified in the JDBC API.

h2/src/test/org/h2/test/db/TestCompatibility.java

@@ -133,7 +133,7 @@ public class TestCompatibility extends TestBase {
             String tableName = meta.getTableName(1);
             if ("ID".equals(columnName) && "TEST".equals(tableName)) {
                 assertTrue(mode + " mode should not support columnAlias", columnAlias.indexOf(mode) >= 0);
-            } else if ("I".equals(columnName) && tableName == null) {
+            } else if ("I".equals(columnName) && tableName.equals("")) {
                 assertTrue(mode + " mode should support columnAlias", columnAlias.indexOf(mode) < 0);
             } else {
                 fail();