IDEA-187212 Suggest to use Java 10 List/Set/Map.copyOf where possible

java/java-tests/testData/inspection/java9CollectionFactory/afterCopyOfJava10.java

@@ -0,0 +1,15 @@
+// "Fix all 'Immutable collection creation can be replaced with collection factory call' problems in file" "true"
+import java.util.*;
+
+class Main {
+  private final List<String> myList;
+  private final Map<String, String> myMap;
+  private final Set<String> mySet;
+
+  Main(Collection<String> list, Map<? extends String, ? extends String> map,
+       Set<String> set) {
+    myList = List.<String>copyOf(list);
+    myMap = Map.<String, String>copyOf(map);
+    mySet = Set.<String>copyOf(set);
+  }
+}

java/java-tests/testData/inspection/java9CollectionFactory/beforeCopyOf.java

@@ -0,0 +1,15 @@
+// "Fix all 'Immutable collection creation can be replaced with collection factory call' problems in file" "false"
+import java.util.*;
+
+class Main {
+  private final List<String> myList;
+  private final Map<String, String> myMap;
+  private final Set<String> mySet;
+
+  Main(Collection<String> list, Map<? extends String, ? extends String> map,
+       Set<String> set) {
+    myList = Collections.un<caret>modifiableList(new ArrayList<>(list));
+    myMap = Collections.unmodifiableMap(new HashMap<>(map));
+    mySet = Collections.unmodifiableSet(new HashSet<>(set));
+  }
+}

java/java-tests/testData/inspection/java9CollectionFactory/beforeCopyOfJava10.java

@@ -0,0 +1,15 @@
+// "Fix all 'Immutable collection creation can be replaced with collection factory call' problems in file" "true"
+import java.util.*;
+
+class Main {
+  private final List<String> myList;
+  private final Map<String, String> myMap;
+  private final Set<String> mySet;
+
+  Main(Collection<String> list, Map<? extends String, ? extends String> map,
+       Set<String> set) {
+    myList = Collections.un<caret>modifiableList(new ArrayList<>(list));
+    myMap = Collections.unmodifiableMap(new HashMap<>(map));
+    mySet = Collections.unmodifiableSet(new HashSet<>(set));
+  }
+}