Java control flow: Don't allow extracting method if there's a potential side effect on the local variables in the case of exception thrown (IDEA-79444, IDEA-159916)

java/java-tests/testData/refactoring/extractMethod/UseVarInFinally1_after.java

@@ -0,0 +1,26 @@
+import org.jetbrains.annotations.NotNull;
+
+import java.util.concurrent.ThreadLocalRandom;
+
+public class A {
+    void f() {
+        String s = "";
+        try {
+            s = "a";
+            s = newMethod(s);
+        } finally {
+            System.out.println(s);
+        }
+    }
+
+    @NotNull
+    private String newMethod(String s) {
+        if (r()) throw new RuntimeException();
+        s = "b";
+        return s;
+    }
+
+    private boolean r() {
+        return ThreadLocalRandom.current().nextBoolean();
+    }
+}