1 files changed, 1 insertions, 1 deletions
diff --git a/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java b/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java
index c33d0d68b8cb..bb97f5cd78d5 100644
--- a/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java
+++ b/java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java
@@ -132,7 +132,7 @@ public class UnusedParametersInspection extends GlobalJavaBatchInspectionTool {
                   int idx = refParameter.getIndex();
                   final boolean[] found = {false};
                   for (int i = 0; i < derived.length && !found[0]; i++) {
-                    if (!scope.contains(derived[i])) {
+                    if (scope == null || !scope.contains(derived[i])) {
                       final PsiParameter[] parameters = derived[i].getParameterList().getParameters();
                       if (parameters.length >= idx) continue;
                       PsiParameter psiParameter = parameters[idx];