diff --git a/java/compiler/instrumentation-util/src/com/intellij/compiler/notNullVerification/NotNullVerifyingInstrumenter.java b/java/compiler/instrumentation-util/src/com/intellij/compiler/notNullVerification/NotNullVerifyingInstrumenter.java
index caea1a136b59..84c547040101 100644
--- a/java/compiler/instrumentation-util/src/com/intellij/compiler/notNullVerification/NotNullVerifyingInstrumenter.java
+++ b/java/compiler/instrumentation-util/src/com/intellij/compiler/notNullVerification/NotNullVerifyingInstrumenter.java
@@ -16,8 +16,6 @@
 package com.intellij.compiler.notNullVerification;
 
 import com.intellij.compiler.instrumentation.FailSafeMethodVisitor;
-import com.sun.istack.internal.NotNull;
-import com.sun.istack.internal.Nullable;
 import org.jetbrains.org.objectweb.asm.*;
 
 import java.io.ByteArrayOutputStream;
@@ -115,8 +113,8 @@ public class NotNullVerifyingInstrumenter extends ClassVisitor implements Opcode
   }
 
   private static class NotNullState {
-    @Nullable String message;
-    @NotNull String exceptionType;
+    String message;
+    String exceptionType;
 
     NotNullState(String exceptionType) {
       this.exceptionType = exceptionType;