diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TInternalError.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TInternalError.java
new file mode 100644
index 000000000..649b86dfa
--- /dev/null
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TInternalError.java
@@ -0,0 +1,34 @@
+/*
+ *  Copyright 2017 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.lang;
+
+public class TInternalError extends TVirtualMachineError {
+    public TInternalError() {
+    }
+
+    public TInternalError(TString message) {
+        super(message);
+    }
+
+    public TInternalError(TString message, TThrowable cause) {
+        super(message, cause);
+    }
+
+    public TInternalError(TThrowable cause) {
+        super(cause);
+    }
+}
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TVirtualMachineError.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TVirtualMachineError.java
index 685ef021f..a6e2fe542 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/TVirtualMachineError.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TVirtualMachineError.java
@@ -25,4 +25,12 @@ public class TVirtualMachineError extends TError {
     public TVirtualMachineError(TString message) {
         super(message);
     }
+
+    public TVirtualMachineError(TThrowable cause) {
+        super(cause);
+    }
+
+    public TVirtualMachineError(TString message, TThrowable cause) {
+        super(message, cause);
+    }
 }