diff --git a/plugins/InspectionGadgets/src/com/siyeh/ig/redundancy/RedundantStringOperationInspection.java b/plugins/InspectionGadgets/src/com/siyeh/ig/redundancy/RedundantStringOperationInspection.java
index 1ab397cf7553..e964608e660c 100644
--- a/plugins/InspectionGadgets/src/com/siyeh/ig/redundancy/RedundantStringOperationInspection.java
+++ b/plugins/InspectionGadgets/src/com/siyeh/ig/redundancy/RedundantStringOperationInspection.java
@@ -315,7 +315,7 @@ public class RedundantStringOperationInspection extends AbstractBaseJavaLocalIns
       // s.lastIndexOf(..., s.length()) or s.lastIndexOf(..., s.length() - 1)
       if (stripped instanceof PsiBinaryExpression) {
         PsiBinaryExpression binOp = (PsiBinaryExpression)stripped;
-        if (binOp.getOperationTokenType().equals(JavaTokenType.MINUS) &&
+        if (binOp.getOperationTokenType() == JavaTokenType.MINUS &&
             ExpressionUtils.isLiteral(PsiUtil.skipParenthesizedExprDown(binOp.getROperand()), 1)) {
           stripped = binOp.getLOperand();
         }
@@ -672,7 +672,7 @@ public class RedundantStringOperationInspection extends AbstractBaseJavaLocalIns
 
     private static void extractSideEffects(PsiExpression result, PsiStatement statement) {
       List<PsiExpression> sideEffects = SideEffectChecker.extractSideEffectExpressions(result);
-      if (Collections.singletonList(result).equals(sideEffects)) return;
+      if (Objects.equals(Collections.singletonList(result), sideEffects)) return;
 
       PsiStatement[] statements = StatementExtractor.generateStatements(sideEffects, result);
       if (statements.length > 0) {