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diff --git a/src/main/java/com/google/testing/junit/testparameterinjector/TestParameterInjector.java b/src/main/java/com/google/testing/junit/testparameterinjector/TestParameterInjector.java
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+++ b/src/main/java/com/google/testing/junit/testparameterinjector/TestParameterInjector.java
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+/*
+ * Copyright 2021 Google Inc.
+ *
+ * Licensed 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 com.google.testing.junit.testparameterinjector;
+
+import java.util.List;
+import org.junit.runners.model.InitializationError;
+
+/**
+ * A JUnit test runner which knows how to instantiate and run test classes where each test case may
+ * be parameterized with its own unique set of test parameters (as opposed to {@link
+ * org.junit.runners.Parameterized} where each test case in a test class is invoked with the exact
+ * same set of parameters).
+ */
+public final class TestParameterInjector extends PluggableTestRunner {
+
+  public TestParameterInjector(Class<?> testClass) throws InitializationError {
+    super(testClass);
+  }
+
+  @Override
+  protected List<TestMethodProcessor> createTestMethodProcessorList() {
+    return TestMethodProcessors.createNewParameterizedProcessorsWithLegacyFeatures(getTestClass());
+  }
+}