diff --git a/classlib/src/main/java/org/teavm/classlib/java/util/concurrent/atomic/TAtomicInteger.java b/classlib/src/main/java/org/teavm/classlib/java/util/concurrent/atomic/TAtomicInteger.java
new file mode 100644
index 000000000..faed3070d
--- /dev/null
+++ b/classlib/src/main/java/org/teavm/classlib/java/util/concurrent/atomic/TAtomicInteger.java
@@ -0,0 +1,139 @@
+/*
+ *  Copyright 2018 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.atomic;
+
+import java.io.Serializable;
+import java.util.function.IntBinaryOperator;
+import java.util.function.IntUnaryOperator;
+
+public class TAtomicInteger extends Number implements Serializable {
+    private int value;
+
+    public TAtomicInteger() {
+    }
+
+    public TAtomicInteger(int value) {
+        this.value = value;
+    }
+
+    public final int get() {
+        return value;
+    }
+
+    public final void set(int newValue) {
+        value = newValue;
+    }
+
+    public final void lazySet(int newValue) {
+        value = newValue;
+    }
+
+    public final int getAndSet(int newValue) {
+        int result = value;
+        value = newValue;
+        return result;
+    }
+
+    public final boolean compareAndSet(int expect, int update) {
+        if (value != expect) {
+            return false;
+        }
+        value = update;
+        return true;
+    }
+
+    public final boolean weakCompareAndSet(int expect, int update) {
+        if (value != expect) {
+            return false;
+        }
+        value = update;
+        return true;
+    }
+
+    public final int getAndIncrement() {
+        return value++;
+    }
+
+    public final int getAndDecrement() {
+        return value--;
+    }
+
+    public final int getAndAdd(int delta) {
+        int result = value;
+        value += delta;
+        return result;
+    }
+
+    public final int incrementAndGet() {
+        return ++value;
+    }
+
+    public final int decrementAndGet() {
+        return --value;
+    }
+
+    public final int addAndGet(int delta) {
+        value += delta;
+        return value;
+    }
+
+    public final int getAndUpdate(IntUnaryOperator updateFunction) {
+        int result = value;
+        value = updateFunction.applyAsInt(value);
+        return result;
+    }
+
+    public final int updateAndGet(IntUnaryOperator updateFunction) {
+        value = updateFunction.applyAsInt(value);
+        return value;
+    }
+
+    public final int getAndAccumulate(int x, IntBinaryOperator accumulatorFunction) {
+        int result = value;
+        value = accumulatorFunction.applyAsInt(value, x);
+        return result;
+    }
+
+    public final int accumulateAndGet(int x, IntBinaryOperator accumulatorFunction) {
+        value = accumulatorFunction.applyAsInt(value, x);
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    @Override
+    public int intValue() {
+        return value;
+    }
+
+    @Override
+    public long longValue() {
+        return value;
+    }
+
+    @Override
+    public float floatValue() {
+        return value;
+    }
+
+    @Override
+    public double doubleValue() {
+        return value;
+    }
+}