diff --git a/.idea/copyright/Apache_License.xml b/.idea/copyright/Apache_License.xml
index 15687f4..ade80da 100644
--- a/.idea/copyright/Apache_License.xml
+++ b/.idea/copyright/Apache_License.xml
@@ -1,6 +1,6 @@
 <component name="CopyrightManager">
   <copyright>
-    <option name="notice" value="Copyright &amp;#36;today.year the original author or authors.&#10; &#10;Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);&#10;you may not use this file except in compliance with the License.&#10;You may obtain a copy of the License at&#10;&#10;    https://www.apache.org/licenses/LICENSE-2.0&#10;&#10;Unless required by applicable law or agreed to in writing, software&#10;distributed under the License is distributed on an &quot;AS IS&quot; BASIS,&#10;WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.&#10;See the License for the specific language governing permissions and&#10;limitations under the License." />
+    <option name="notice" value="Copyright 2023-Copyright &amp;#36;today.yearamp;#36;today.year the original author or authors.&#10; &#10;Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);&#10;you may not use this file except in compliance with the License.&#10;You may obtain a copy of the License at&#10;&#10;    https://www.apache.org/licenses/LICENSE-2.0&#10;&#10;Unless required by applicable law or agreed to in writing, software&#10;distributed under the License is distributed on an &quot;AS IS&quot; BASIS,&#10;WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.&#10;See the License for the specific language governing permissions and&#10;limitations under the License." />
     <option name="myName" value="Apache License" />
   </copyright>
-</component>
\ No newline at end of file
+</component>
diff --git a/checkcliargs.sh b/checkcliargs.sh
new file mode 100755
index 0000000..0bad85a
--- /dev/null
+++ b/checkcliargs.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+MAIN="org.testng.TestNG"
+TMPNEW=/tmp/checkcliargs-new
+TMPOLD=/tmp/checkcliargs-old
+
+java -cp "lib/test/*" $MAIN >$TMPNEW
+java -cp "examples/lib/test/*" $MAIN >$TMPOLD
+
+diff $TMPOLD $TMPNEW
+
+rm -rf $TMPNEW $TMPOLD
diff --git a/examples/src/test/java/com/example/ExamplesTest.java b/examples/src/test/java/com/example/ExamplesTest.java
index 8d93e01..620f3ae 100644
--- a/examples/src/test/java/com/example/ExamplesTest.java
+++ b/examples/src/test/java/com/example/ExamplesTest.java
@@ -3,18 +3,16 @@ package com.example;
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
-class ExampleTest {
-    public static void main(String[] args) {
-        new ExampleTest().verifyHello();
-    }
+class ExamplesTest {
+    private final ExamplesLib example = new ExamplesLib();
 
     @Test
-    void testFail() {
-        Assert.fail("failed");
+    void foo() {
+        Assert.assertNotEquals(example.getMessage(), "foo");
     }
 
     @Test
     void verifyHello() {
-        Assert.assertTrue(true);
+        Assert.assertEquals(example.getMessage(), "Hello World!");
     }
 }
\ No newline at end of file
diff --git a/src/bld/java/rife/bld/extension/TestNgOperationBuild.java b/src/bld/java/rife/bld/extension/TestNgOperationBuild.java
index d88d787..ce1ebd9 100644
--- a/src/bld/java/rife/bld/extension/TestNgOperationBuild.java
+++ b/src/bld/java/rife/bld/extension/TestNgOperationBuild.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 the original author or authors.
+ * Copyright 2023-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class TestNgOperationBuild extends Project {
                 .include(dependency("org.testng", "testng", version(7, 9, 0)))
                 .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 10, 1)))
                 .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 10, 1)))
-                .include(dependency("org.assertj", "assertj-core", version(3, 24, 2)));
+                .include(dependency("org.assertj", "assertj-core", version(3, 25, 2)));
 
         javadocOperation()
                 .javadocOptions()
diff --git a/src/main/java/rife/bld/extension/TestNgOperation.java b/src/main/java/rife/bld/extension/TestNgOperation.java
index b95445b..33c15d5 100644
--- a/src/main/java/rife/bld/extension/TestNgOperation.java
+++ b/src/main/java/rife/bld/extension/TestNgOperation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 the original author or authors.
+ * Copyright 2023-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -561,6 +561,19 @@ public class TestNgOperation extends AbstractProcessOperation<TestNgOperation> {
         return this;
     }
 
+    /**
+     * Should TestNG use a global Shared ThreadPool (At suite level) for running data providers.
+     *
+     * @param shareThreadPoolForDataProviders {@code true} or {@code false}
+     * @return this operation instance
+     */
+    public TestNgOperation shareThreadPoolForDataProviders(boolean shareThreadPoolForDataProviders) {
+        if (shareThreadPoolForDataProviders) {
+            options.put("-shareThreadPoolForDataProviders", String.valueOf(shareThreadPoolForDataProviders));
+        }
+        return this;
+    }
+
     /**
      * The directories where your javadoc annotated test sources are. This option is only necessary
      * if you are using javadoc type annotations. (e.g. {@code "src/test"} or
@@ -845,6 +858,19 @@ public class TestNgOperation extends AbstractProcessOperation<TestNgOperation> {
         return this;
     }
 
+    /**
+     * Should TestNG use a global Shared ThreadPool (At suite level) for running regular and data driven tests.
+     *
+     * @param useGlobalThreadPool {@code true} or {@code false}
+     * @return this operation instance
+     */
+    public TestNgOperation useGlobalThreadPool(boolean useGlobalThreadPool) {
+        if (useGlobalThreadPool) {
+            options.put("-useGlobalThreadPool", String.valueOf(useGlobalThreadPool));
+        }
+        return this;
+    }
+
     /**
      * Set the Level of verbosity.
      *
@@ -921,4 +947,4 @@ public class TestNgOperation extends AbstractProcessOperation<TestNgOperation> {
          */
         CONTINUE
     }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/rife/bld/extension/TestNgSimple2Test.java b/src/test/java/rife/bld/extension/TestNgExample.java
similarity index 66%
rename from src/test/java/rife/bld/extension/TestNgSimple2Test.java
rename to src/test/java/rife/bld/extension/TestNgExample.java
index d09159d..c2dc3e0 100644
--- a/src/test/java/rife/bld/extension/TestNgSimple2Test.java
+++ b/src/test/java/rife/bld/extension/TestNgExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 the original author or authors.
+ * Copyright 2023-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,22 +16,15 @@
 
 package rife.bld.extension;
 
-import org.testng.Assert;
-import org.testng.annotations.Test;
-
 /**
- * Implements the TestNgSimpleTest class.
+ * Implements the TestNgExample class.
  *
  * @author <a href="https://erik.thauvin.net/">Erik C. Thauvin</a>
  * @since 1.0
  */
-class TestNgSimple2Test {
-    public static void main(String[] args) {
-        new TestNgSimple2Test().verifyHello();
-    }
-
-    @Test
-    void verifyHello() {
-        Assert.assertTrue(true);
+@SuppressWarnings("PMD.TestClassWithoutTestCases")
+class TestNgExample {
+    public String getMessage() {
+        return "Hello World!";
     }
 }
diff --git a/src/test/java/rife/bld/extension/TestNgSimpleTest.java b/src/test/java/rife/bld/extension/TestNgExampleTest.java
similarity index 71%
rename from src/test/java/rife/bld/extension/TestNgSimpleTest.java
rename to src/test/java/rife/bld/extension/TestNgExampleTest.java
index 8007a15..a2c35b9 100644
--- a/src/test/java/rife/bld/extension/TestNgSimpleTest.java
+++ b/src/test/java/rife/bld/extension/TestNgExampleTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 the original author or authors.
+ * Copyright 2023-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,23 +20,21 @@ import org.testng.Assert;
 import org.testng.annotations.Test;
 
 /**
- * Implements the TestNgSimpleTest class.
+ * Implements the TestNgExampleTest class.
  *
  * @author <a href="https://erik.thauvin.net/">Erik C. Thauvin</a>
  * @since 1.0
  */
-class TestNgSimpleTest {
-    public static void main(String[] args) {
-        new TestNgSimpleTest().verifyHello();
-    }
+class TestNgExampleTest {
+    private final TestNgExample example = new TestNgExample();
 
     @Test
-    void testFail() {
-        Assert.fail("failed");
+    void foo() {
+        Assert.assertEquals(example.getMessage(), "foo");
     }
 
     @Test
     void verifyHello() {
-        Assert.assertTrue(true);
+        Assert.assertEquals(example.getMessage(), "Hello World!");
     }
 }
diff --git a/src/test/java/rife/bld/extension/TestNgOperationTest.java b/src/test/java/rife/bld/extension/TestNgOperationTest.java
index 88a7fa3..3bdc424 100644
--- a/src/test/java/rife/bld/extension/TestNgOperationTest.java
+++ b/src/test/java/rife/bld/extension/TestNgOperationTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 the original author or authors.
+ * Copyright 2023-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -85,7 +85,7 @@ class TestNgOperationTest {
     void testExecute() {
         assertThatThrownBy(() ->
                 new TestNgOperation().fromProject(new Project())
-                        .testClass("rife.bld.extension.TestNgSimpleTest")
+                        .testClass("rife.bld.extension.TestNgExampleTest")
                         .execute())
                 .as("with testClass").isInstanceOf(ExitStatusException.class);
 
@@ -97,8 +97,8 @@ class TestNgOperationTest {
 
         assertThatCode(() ->
                 new TestNgOperation().fromProject(new Project())
-                        .testClass("rife.bld.extension.TestNgSimpleTest")
-                        .methods("rife.bld.extension.TestNgSimpleTest.verifyHello")
+                        .testClass("rife.bld.extension.TestNgExampleTest")
+                        .methods("rife.bld.extension.TestNgExampleTest.verifyHello")
                         .execute())
                 .as("with methods").doesNotThrowAnyException();
 
@@ -110,14 +110,14 @@ class TestNgOperationTest {
 
         assertThatCode(() ->
                 new TestNgOperation().fromProject(new Project())
-                        .suites("src/test/resources/testng3.xml")
+                        .suites("src/test/resources/testng2.xml")
                         .log(2)
                         .execute())
-                .as("suite 3").doesNotThrowAnyException();
+                .as("suite 2 - log ").doesNotThrowAnyException();
 
         assertThatCode(() ->
                 new TestNgOperation().fromProject(new Project())
-                        .suites("src/test/resources/testng3.xml")
+                        .suites("src/test/resources/testng2.xml")
                         .testClasspath("lib/test/*", "build/main", "build/test")
                         .log(2)
                         .execute())
@@ -125,7 +125,7 @@ class TestNgOperationTest {
 
         assertThatCode(() ->
                 new TestNgOperation().fromProject(new Project())
-                        .suites("src/test/resources/testng3.xml")
+                        .suites("src/test/resources/testng2.xml")
                         .testClasspath(List.of("lib/test/*", "build/main", "build/test"))
                         .log(2)
                         .execute())
@@ -315,6 +315,15 @@ class TestNgOperationTest {
         assertThat(op.options.get("-testrunfactory")).isEqualTo(FOO);
     }
 
+    @Test
+    void testShareThreadPoolForDataProviders() {
+        var op = new TestNgOperation().shareThreadPoolForDataProviders(true);
+        assertThat(op.options.get("-shareThreadPoolForDataProviders")).isEqualTo("true");
+
+        op = new TestNgOperation().shareThreadPoolForDataProviders(false);
+        assertThat(op.options.get("-shareThreadPoolForDataProviders")).isNull();
+    }
+
     @Test
     void testSourceDir() {
         var op = new TestNgOperation().sourceDir(FOO, BAR);
@@ -375,6 +384,15 @@ class TestNgOperationTest {
         assertThat(op.options.get("-usedefaultlisteners")).isEqualTo("true");
     }
 
+    @Test
+    void testUseGlobalThreadPool() {
+        var op = new TestNgOperation().useGlobalThreadPool(true);
+        assertThat(op.options.get("-useGlobalThreadPool")).isEqualTo("true");
+
+        op = new TestNgOperation().useGlobalThreadPool(false);
+        assertThat(op.options.get("-useGlobalThreadPool")).isNull();
+    }
+
     @Test
     void testVerbose() {
         var op = new TestNgOperation().log(1);
diff --git a/src/test/resources/testng.xml b/src/test/resources/testng.xml
index 41fd8ae..8ad378e 100644
--- a/src/test/resources/testng.xml
+++ b/src/test/resources/testng.xml
@@ -2,7 +2,7 @@
 <suite name="test suite 1" verbose="2">
     <test name="simple test">
         <classes>
-            <class name="rife.bld.extension.TestNgSimpleTest"/>
+            <class name="rife.bld.extension.TestNgExample"/>
         </classes>
     </test>
 </suite>
\ No newline at end of file
diff --git a/src/test/resources/testng2.xml b/src/test/resources/testng2.xml
index 01168b7..44ddf38 100644
--- a/src/test/resources/testng2.xml
+++ b/src/test/resources/testng2.xml
@@ -2,9 +2,9 @@
 <suite name="test suite 2" verbose="1">
     <test name="exclude fail">
         <classes>
-            <class name="rife.bld.extension.TestNgSimpleTest">
+            <class name="rife.bld.extension.TestNgExampleTest">
                 <methods>
-                    <exclude name="testFail"/>
+                    <exclude name="foo"/>
                 </methods>
             </class>
         </classes>
diff --git a/src/test/resources/testng3.xml b/src/test/resources/testng3.xml
deleted file mode 100644
index baa78e5..0000000
--- a/src/test/resources/testng3.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
-<suite name="test suite 3">
-    <test name="test 2 classes">
-        <classes>
-            <class name="rife.bld.extension.TestNgSimpleTest">
-                <methods>
-                    <exclude name="testFail"/>
-                </methods>
-            </class>
-            <class name="rife.bld.extension.TestNgSimple2Test"/>
-        </classes>
-    </test>
-</suite>