diff --git a/openapi/src/com/intellij/psi/util/MethodSignatureBackedByPsiMethod.java b/openapi/src/com/intellij/psi/util/MethodSignatureBackedByPsiMethod.java
index 3ed7a4ca1b27..40cf8a642ed2 100644
--- a/openapi/src/com/intellij/psi/util/MethodSignatureBackedByPsiMethod.java
+++ b/openapi/src/com/intellij/psi/util/MethodSignatureBackedByPsiMethod.java
@@ -47,7 +47,8 @@ public class MethodSignatureBackedByPsiMethod extends MethodSignatureBase {
 
   public static MethodSignatureBackedByPsiMethod create(PsiMethod method, PsiSubstitutor substitutor) {
     final boolean isRaw = PsiUtil.isRawSubstitutor(method, substitutor);
-    PsiTypeParameter[] methodTypeParameters = method.getTypeParameterList().getTypeParameters();
+    final PsiTypeParameterList typeParameterList = method.getTypeParameterList();
+    PsiTypeParameter[] methodTypeParameters = typeParameterList != null ? typeParameterList.getTypeParameters() : PsiTypeParameter.EMPTY_ARRAY;
     final PsiParameter[] parameters = method.getParameterList().getParameters();
     PsiType[] parameterTypes = new PsiType[parameters.length];
     for (int i = 0; i < parameterTypes.length; i++) {