diff --git a/java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/HardcodedContracts.java b/java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/HardcodedContracts.java
index 98a20300cd22..5386febd8d72 100644
--- a/java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/HardcodedContracts.java
+++ b/java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/HardcodedContracts.java
@@ -196,7 +196,8 @@ public class HardcodedContracts {
   }
 
   private static boolean isJunit(String className) {
-    return className.startsWith("junit.framework.") || className.startsWith("org.junit.");
+    return className.startsWith("junit.framework.") || className.startsWith("org.junit.")
+           || className.equals("org.testng.AssertJUnit");
   }
 
   private static boolean isJunit5(String className) {
@@ -204,7 +205,7 @@ public class HardcodedContracts {
   }
 
   private static boolean isTestng(String className) {
-    return className.startsWith("org.testng.");
+    return className.startsWith("org.testng.") && !className.equals("org.testng.AssertJUnit");
   }
 
   private static boolean isNotNullMatcher(PsiExpression expr) {
diff --git a/java/java-tests/testData/inspection/dataFlow/fixture/AssertTestNg.java b/java/java-tests/testData/inspection/dataFlow/fixture/AssertTestNg.java
new file mode 100644
index 000000000000..d920bd710d6a
--- /dev/null
+++ b/java/java-tests/testData/inspection/dataFlow/fixture/AssertTestNg.java
@@ -0,0 +1,43 @@
+import org.jetbrains.annotations.Nullable;
+import org.testng.Assert;
+import org.testng.AssertJUnit;
+
+class AssertTestNg {
+  public void assertTestNgStyle(@Nullable String msg, @Nullable String obj, boolean x, boolean y)
+  {
+    Assert.assertNotNull(obj, msg);
+    if (msg == null) {
+      System.out.println("msg is null");
+    }
+    if (<warning descr="Condition 'obj == null' is always 'false'">obj == null</warning>) {
+      System.out.println("obj is null");
+    }
+    Assert.assertTrue(x);
+    if (<warning descr="Condition 'x' is always 'true'">x</warning>) {
+      System.out.println("x is true");
+    }
+    Assert.assertTrue(y, msg);
+    if (<warning descr="Condition 'y' is always 'true'">y</warning>) {
+      System.out.println("x is true");
+    }
+  }
+
+  public void assertJUnitStyle(@Nullable String msg, @Nullable String obj, boolean x, boolean y)
+  {
+    AssertJUnit.assertNotNull(msg, obj);
+    if (msg == null) {
+      System.out.println("msg is null");
+    }
+    if (<warning descr="Condition 'obj == null' is always 'false'">obj == null</warning>) {
+      System.out.println("obj is null");
+    }
+    AssertJUnit.assertTrue(x);
+    if (<warning descr="Condition 'x' is always 'true'">x</warning>) {
+      System.out.println("x is true");
+    }
+    AssertJUnit.assertTrue(msg, y);
+    if (<warning descr="Condition 'y' is always 'true'">y</warning>) {
+      System.out.println("x is true");
+    }
+  }
+}
\ No newline at end of file
diff --git a/java/java-tests/testSrc/com/intellij/java/codeInspection/HardcodedContractsTest.java b/java/java-tests/testSrc/com/intellij/java/codeInspection/HardcodedContractsTest.java
index 15018ea6e785..d41e4c2bcb3c 100644
--- a/java/java-tests/testSrc/com/intellij/java/codeInspection/HardcodedContractsTest.java
+++ b/java/java-tests/testSrc/com/intellij/java/codeInspection/HardcodedContractsTest.java
@@ -128,4 +128,24 @@ public class HardcodedContractsTest extends DataFlowInspectionTestCase {
     checkHighlighting();
   }
 
+  public void testAssertTestNg() {
+    myFixture.addClass("package org.testng;\n" +
+                       "\n" +
+                       "public class AssertJUnit {\n" +
+                       "  static public void assertTrue(String message, boolean condition) {}\n" +
+                       "  static public void assertTrue(boolean condition) {}\n" +
+                       "  static public void assertNotNull(String message, Object object) {}\n" +
+                       "  static public void assertNotNull(Object object) {}\n" +
+                       "}");
+    myFixture.addClass("package org.testng;\n" +
+                       "\n" +
+                       "public class Assert {\n" +
+                       "  static public void assertTrue(boolean condition, String message) {}\n" +
+                       "  static public void assertTrue(boolean condition) {}\n" +
+                       "  static public void assertNotNull(Object object, String message) {}\n" +
+                       "  static public void assertNotNull(Object object) {}\n" +
+                       "}");
+    checkHighlighting();
+  }
+
 }