diff --git a/generic/src/test/java/org/netbeans/html/presenters/spi/test/CallbackTest.java b/generic/src/test/java/org/netbeans/html/presenters/spi/test/CallbackTest.java
deleted file mode 100644
index ab51dd0..0000000
--- a/generic/src/test/java/org/netbeans/html/presenters/spi/test/CallbackTest.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.netbeans.html.presenters.spi.test;
-
-import java.lang.reflect.Method;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Executors;
-import java.util.logging.Level;
-import javax.script.ScriptException;
-import static org.testng.Assert.assertEquals;
-import org.testng.annotations.AfterClass;
-import org.testng.annotations.Factory;
-
-public class CallbackTest {
-    @Factory public static Object[] deadlockTests() throws Exception {
-        return GenericTest.createTests(new CBP());
-    }
-    
-    @AfterClass public static void countCallbacks() {
-        assertEquals(Counter.callbacks, Counter.calls, "Every call to loadJS is prefixed with a callback");
-    }
-    
-    
-    private static final class CBP extends Testing {
-
-        public CBP() {
-            super(false, Executors.newSingleThreadExecutor((r) -> {
-                return new Thread(r, "Callback Executor");
-            }));
-        }
-
-        @Override
-        protected void loadJS(String js) {
-            dispatch(new Runnable () {
-                @Override
-                public void run() {
-                    try {
-                        Object res = eng.eval("if (this.counter) this.counter()");
-                        LOG.log(Level.FINE, "counter res: {0}", res);
-                    } catch (ScriptException ex) {
-                        LOG.log(Level.SEVERE, null, ex);
-                    }
-                }
-            });
-            super.loadJS(js);
-        }
-
-        @Override void beforeTest(Class<?> testClass) throws Exception {
-            Class<?> cntr = testClass.getClassLoader().loadClass(Counter.class.getName());
-            Method rc = cntr.getMethod("registerCounter");
-            rc.invoke(null);
-        }
-        
-    }
-}