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diff --git a/src/main/java/com/code_intelligence/jazzer/mutation/support/TypeHolder.java b/src/main/java/com/code_intelligence/jazzer/mutation/support/TypeHolder.java
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+/*
+ * Copyright 2023 Code Intelligence GmbH
+ *
+ * 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.code_intelligence.jazzer.mutation.support;
+
+import java.lang.reflect.AnnotatedParameterizedType;
+import java.lang.reflect.AnnotatedType;
+import java.lang.reflect.Type;
+
+/**
+ * A factory for {@link AnnotatedType} instances capturing types.
+ *
+ * <p>Due to type erasure, this class can only be used by creating an anonymous subclass.
+ *
+ * <p>Example: {@code new TypeHolder<List<String>> {}.annotatedType}
+ *
+ * @param <T> the type to hold
+ */
+public abstract class TypeHolder<T> {
+  protected TypeHolder() {}
+
+  public AnnotatedType annotatedType() {
+    return ((AnnotatedParameterizedType) this.getClass().getAnnotatedSuperclass())
+        .getAnnotatedActualTypeArguments()[0];
+  }
+
+  public Type type() {
+    return annotatedType().getType();
+  }
+}