Java: If a variable is defined in the extracted part and reused later in the code declare it after the extracted part (IDEA-178180)

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

@@ -0,0 +1,32 @@
+import org.jetbrains.annotations.Nullable;
+
+public class OutputVariableReused {
+
+    static class X {
+        X(String s) {}
+    }
+
+    String convert(String s, String s1, String s2) {
+        return s + s1 + s2;
+    }
+
+    public X test(String s, String left, String right) {
+        X res1 = newMethod(s, left, right);
+        if (res1 != null) return res1;
+        String res;
+        res = convert(s, right, left);
+        if (res != null) {
+            return new X(res);
+        }
+        return null;
+    }
+
+    @Nullable
+    private X newMethod(String s, String left, String right) {
+        String res = convert(s, left, right);
+        if (res != null) {
+            return new X(res);
+        }
+        return null;
+    }
+}