redundant suppressions: trim ids (IDEA-178473)

java/java-analysis-impl/src/com/intellij/codeInspection/RedundantSuppressInspectionBase.java

@@ -141,7 +141,8 @@ public class RedundantSuppressInspectionBase extends GlobalInspectionTool {
       private void checkElement(final PsiElement owner) {
         String idsString = JavaSuppressionUtil.getSuppressedInspectionIdsIn(owner);
         if (idsString != null && !idsString.isEmpty()) {
-          List<String> ids = StringUtil.split(idsString, ",");
+          List<String> ids = new ArrayList<>();
+          StringUtil.tokenize(idsString, "[, ]").forEach(ids::add);
           if (IGNORE_ALL && (ids.contains(SuppressionUtil.ALL) || ids.contains(SuppressionUtil.ALL.toLowerCase()))) return;
           Collection<String> suppressed = suppressedScopes.get(owner);
           if (suppressed == null) {

java/java-tests/testData/inspection/redundantSuppress/defaultFile/src/x/X.java

@@ -4,7 +4,7 @@ class S {
     public void f() {
         //noinspection HardCodedStringLiteral
         String s=null;
-        //noinspection HardCodedStringLiteral
+        //noinspection unused, HardCodedStringLiteral
         String s2="sssssss";
     }
     @SuppressWarnings({"HardCodedStringLiteral"})