move instance method: update method reference qualifier according to the method reference shape (IDEA-155147)

java/java-tests/testData/refactoring/moveInstanceMethod/ForeignMethodReferenceWithTargetField.java

@@ -0,0 +1,15 @@
+import java.util.stream.Stream;
+
+class Test {
+  private static class Destination{ }
+
+  private final Destination destination = new Destination();
+
+  public void main(Stream<String> stream, Test ref){
+    stream.filter(ref::notNull);
+  }
+
+  private boolean not<caret>Null(String it) {
+    return it != null;
+  }
+}

java/java-tests/testData/refactoring/moveInstanceMethod/ForeignMethodReferenceWithTargetField.java.after

@@ -0,0 +1,16 @@
+import java.util.stream.Stream;
+
+class Test {
+  private static class Destination{
+      private boolean notNull(String it) {
+        return it != null;
+      }
+  }
+
+  private final Destination destination = new Destination();
+
+  public void main(Stream<String> stream, Test ref){
+    stream.filter(ref.destination::notNull);
+  }
+
+}

java/java-tests/testData/refactoring/moveInstanceMethod/ParameterMethodReference.java

@@ -0,0 +1,15 @@
+import java.util.stream.Stream;
+
+class Test {
+  private static class Destination{ }
+
+  private final Destination destination = new Destination();
+
+  public void main(Stream<Destination> stream){
+    stream.filter(this::notNull);
+  }
+
+  private boolean not<caret>Null(Destination d) {
+    return d != null;
+  }
+}

java/java-tests/testData/refactoring/moveInstanceMethod/ParameterMethodReference.java.after

@@ -0,0 +1,16 @@
+import java.util.stream.Stream;
+
+class Test {
+  private static class Destination{
+      private boolean notNull() {
+        return this != null;
+      }
+  }
+
+  private final Destination destination = new Destination();
+
+  public void main(Stream<Destination> stream){
+    stream.filter(Test.Destination::notNull);
+  }
+
+}

java/java-tests/testData/refactoring/moveInstanceMethod/ThisMethodReferenceWithTargetField.java

@@ -0,0 +1,15 @@
+import java.util.stream.Stream;
+
+class Test {
+  private static class Destination{ }
+
+  private final Destination destination = new Destination();
+
+  public void main(Stream<String> stream){
+    stream.filter(this::notNull);
+  }
+
+  private boolean not<caret>Null(String it) {
+    return it != null;
+  }
+}

java/java-tests/testData/refactoring/moveInstanceMethod/ThisMethodReferenceWithTargetField.java.after

@@ -0,0 +1,16 @@
+import java.util.stream.Stream;
+
+class Test {
+  private static class Destination{
+      private boolean notNull(String it) {
+        return it != null;
+      }
+  }
+
+  private final Destination destination = new Destination();
+
+  public void main(Stream<String> stream){
+    stream.filter(destination::notNull);
+  }
+
+}