testdata for (IDEA-108664)

java/java-tests/testData/refactoring/extractMethod/InferredNotNullInReturnStatement.java

@@ -0,0 +1,13 @@
+class X {
+  void foo(java.util.List l) {
+    for (Object o : l) {
+      <selection>if (o == null) continue;
+      Object x = bar(o);</selection>
+      System.out.println(x);
+    }
+  }
+
+  private String bar(Object o) {
+    return "";
+  }
+}

java/java-tests/testData/refactoring/extractMethod/InferredNotNullInReturnStatement_after.java

@@ -0,0 +1,22 @@
+import org.jetbrains.annotations.Nullable;
+
+class X {
+  void foo(java.util.List l) {
+    for (Object o : l) {
+        Object x = newMethod(o);
+        if (x == null) continue;
+      System.out.println(x);
+    }
+  }
+
+    @Nullable
+    private Object newMethod(Object o) {
+        if (o == null) return null;
+        Object x = bar(o);
+        return x;
+    }
+
+    private String bar(Object o) {
+    return "";
+  }
+}

java/java-tests/testSrc/com/intellij/refactoring/ExtractMethodTest.java

@@ -619,6 +619,10 @@ public class ExtractMethodTest extends LightCodeInsightTestCase {
     doTest();
   }
 
+  public void testInferredNotNullInReturnStatement() throws Exception {
+    doTest();
+  }
+
   private void doTestDisabledParam() throws PrepareFailedException {
     final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
     settings.ELSE_ON_NEW_LINE = true;