restored the more specific code for Trigger, as requested

h2/src/main/org/h2/schema/TriggerObject.java

@@ -5,6 +5,7 @@
  */
 package org.h2.schema;
 
+import java.lang.reflect.Method;
 import java.sql.Connection;
 import java.sql.SQLException;
 
@@ -93,7 +94,15 @@ public class TriggerObject extends SchemaObjectBase {
             String fullClassName = Constants.USER_PACKAGE + ".trigger." + getName();
             compiler.setSource(fullClassName, triggerSource);
             try {
-                return (Trigger) compiler.invoke(fullClassName);
+                if (SourceCompiler.isJavaxScriptSource(triggerSource)) {
+                    return (Trigger) compiler.getCompiledScript(fullClassName).eval();
+                } else {
+                    final Method m = compiler.getMethod(fullClassName);
+                    if (m.getParameterTypes().length > 0) {
+                        throw new IllegalStateException("No parameters are allowed for a trigger");
+                    }
+                    return (Trigger) m.invoke(null);
+                }
             } catch (DbException e) {
                 throw e;
             } catch (Exception e) {

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

@@ -190,8 +190,13 @@ public class SourceCompiler {
         return source.startsWith("#ruby");
     }
 
-    // whether the passed source should be compiled using javax.script.ScriptEngineManager
-    private static boolean isJavaxScriptSource(String source) {
+    /**
+     * Whether the passed source can be compiled using {@link javax.script.ScriptEngineManager}.
+     * 
+     * @param source the source to test.
+     * @return <code>true</code> if {@link #getCompiledScript(String)} can be called.
+     */
+    public static boolean isJavaxScriptSource(String source) {
         return isJavascriptSource(source) || isRubySource(source);
     }