diff --git a/platform/analysis-impl/src/com/intellij/codeInspection/ProblemDescriptorBase.java b/platform/analysis-impl/src/com/intellij/codeInspection/ProblemDescriptorBase.java
index a7286d5e264b..42dfa5833526 100644
--- a/platform/analysis-impl/src/com/intellij/codeInspection/ProblemDescriptorBase.java
+++ b/platform/analysis-impl/src/com/intellij/codeInspection/ProblemDescriptorBase.java
@@ -45,7 +45,7 @@ public class ProblemDescriptorBase extends CommonProblemDescriptorImpl implement
 
   public ProblemDescriptorBase(@NotNull PsiElement startElement,
                                @NotNull PsiElement endElement,
-                               String descriptionTemplate,
+                               @NotNull String descriptionTemplate,
                                LocalQuickFix[] fixes,
                                @NotNull ProblemHighlightType highlightType,
                                boolean isAfterEndOfLine,
diff --git a/platform/lang-impl/src/com/intellij/codeInspection/ex/ProblemDescriptorImpl.java b/platform/lang-impl/src/com/intellij/codeInspection/ex/ProblemDescriptorImpl.java
index 2955f369e108..0cae3174aad9 100644
--- a/platform/lang-impl/src/com/intellij/codeInspection/ex/ProblemDescriptorImpl.java
+++ b/platform/lang-impl/src/com/intellij/codeInspection/ex/ProblemDescriptorImpl.java
@@ -30,7 +30,7 @@ public class ProblemDescriptorImpl extends ProblemDescriptorBase implements Prob
 
   public ProblemDescriptorImpl(@NotNull PsiElement startElement,
                                @NotNull PsiElement endElement,
-                               String descriptionTemplate,
+                               @NotNull String descriptionTemplate,
                                LocalQuickFix[] fixes,
                                @NotNull ProblemHighlightType highlightType,
                                boolean isAfterEndOfLine,
@@ -41,7 +41,7 @@ public class ProblemDescriptorImpl extends ProblemDescriptorBase implements Prob
 
   public ProblemDescriptorImpl(@NotNull PsiElement startElement,
                                @NotNull PsiElement endElement,
-                               String descriptionTemplate,
+                               @NotNull String descriptionTemplate,
                                LocalQuickFix[] fixes,
                                @NotNull ProblemHighlightType highlightType,
                                boolean isAfterEndOfLine,
@@ -53,7 +53,7 @@ public class ProblemDescriptorImpl extends ProblemDescriptorBase implements Prob
 
   public ProblemDescriptorImpl(@NotNull PsiElement startElement,
                                @NotNull PsiElement endElement,
-                               String descriptionTemplate,
+                               @NotNull String descriptionTemplate,
                                LocalQuickFix[] fixes,
                                @NotNull ProblemHighlightType highlightType,
                                boolean isAfterEndOfLine,
@@ -61,7 +61,6 @@ public class ProblemDescriptorImpl extends ProblemDescriptorBase implements Prob
                                final boolean tooltip,
                                @Nullable HintAction hintAction,
                                boolean onTheFly) {
-
     super(startElement, endElement, descriptionTemplate, fixes, highlightType, isAfterEndOfLine, rangeInElement, tooltip, onTheFly);
     myHintAction = hintAction;
   }