Less classes are loaded when using the database in embedded mode.

h2/src/main/org/h2/message/TraceSystem.java

@@ -105,7 +105,6 @@ public class TraceSystem implements TraceWriter {
         this.fileName = fileName;
         updateLevel();
         traces = SmallLRUCache.newInstance(100);
-        dateFormat = new SimpleDateFormat("MM-dd HH:mm:ss ");
     }
 
     private void updateLevel() {
@@ -210,10 +209,11 @@ public class TraceSystem implements TraceWriter {
         return levelFile;
     }
 
-    private String format(String module, String s) {
-        synchronized (dateFormat) {
-            return dateFormat.format(new Date()) + module + ": " + s;
+    private synchronized String format(String module, String s) {
+        if (dateFormat == null) {
+            dateFormat = new SimpleDateFormat("MM-dd HH:mm:ss ");
         }
+        return dateFormat.format(new Date()) + module + ": " + s;
     }
 
     public void write(int level, String module, String s, Throwable t) {

h2/src/main/org/h2/server/web/WebServer.java

@@ -213,6 +213,11 @@ public class WebServer implements Service {
     }
 
     String getStartDateTime() {
+        if (startDateTime == null) {
+            SimpleDateFormat format = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z", new Locale("en", ""));
+            format.setTimeZone(TimeZone.getTimeZone("GMT"));
+            startDateTime = format.format(new Date());
+        }
         return startDateTime;
     }
 
@@ -272,12 +277,6 @@ public class WebServer implements Service {
 //                    TraceSystem.traceThrowable(e);
 //                }
 //            }
-        SimpleDateFormat format = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z", new Locale("en", ""));
-        synchronized (format) {
-            format.setTimeZone(TimeZone.getTimeZone("GMT"));
-            startDateTime = format.format(new Date());
-        }
-        trace(startDateTime);
         for (String[] lang : LANGUAGES) {
             languages.add(lang[0]);
         }