fix errors

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/collect/afterGroupingBySimpleOldStyle.java

@@ -0,0 +1,15 @@
+// "Replace with collect" "true"
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class Main {
+  private Map<Integer, List<String>> test(String... list) {
+    Map<Integer, List<String>> map = new HashMap<>();
+      map = Arrays.stream(list).filter(Objects::nonNull).collect(Collectors.groupingBy(String::length, Collectors.toCollection(ArrayList::new)));
+    return map;
+  }
+
+  public static void main(String[] args) {
+    System.out.println(new Main().test("a", "bbb", null, "cc", "dd", "eedasfasdfs", "dd"));
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/collect/beforeGroupingBySimpleOldStyle.java

@@ -0,0 +1,23 @@
+// "Replace with collect" "true"
+import java.util.*;
+
+public class Main {
+  private Map<Integer, List<String>> test(String... list) {
+    Map<Integer, List<String>> map = new HashMap<>();
+    for(String s : li<caret>st) {
+      if(s != null) {
+        List<String> tmp = map.get(s.length());
+        if(tmp == null) {
+          tmp = new ArrayList<>();
+          map.put(s.length(), tmp);
+        }
+        tmp.add(s);
+      }
+    }
+    return map;
+  }
+
+  public static void main(String[] args) {
+    System.out.println(new Main().test("a", "bbb", null, "cc", "dd", "eedasfasdfs", "dd"));
+  }
+}