diff --git a/classlib/src/main/java/org/teavm/classlib/java/util/concurrent/TCancellationException.java b/classlib/src/main/java/org/teavm/classlib/java/util/concurrent/TCancellationException.java
new file mode 100644
index 000000000..e0766c47c
--- /dev/null
+++ b/classlib/src/main/java/org/teavm/classlib/java/util/concurrent/TCancellationException.java
@@ -0,0 +1,25 @@
+/*
+ *  Copyright 2024 Alexey Andreev.
+ *
+ *  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 org.teavm.classlib.java.util.concurrent;
+
+public class TCancellationException extends IllegalStateException {
+    public TCancellationException() {
+    }
+
+    public TCancellationException(String s) {
+        super(s);
+    }
+}