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/UseVarInCatchNested2.java

@@ -0,0 +1,28 @@
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.concurrent.ThreadLocalRandom;
+
+class A {
+    void f() {
+        int i = 0;
+        try {
+            i = 1;
+            try {
+                i = 2;
+                if (r()) throw new IOException();
+                <selection>i = 3;
+                if (r()) throw new SQLException();
+                i = 4;</selection>
+                System.out.println("ok");
+            } catch (IOException e) {
+                System.out.println("io " + i);
+            }
+        } catch (SQLException e) {
+            System.out.println("sql " + i);
+        }
+    }
+
+    private boolean r() {
+        return ThreadLocalRandom.current().nextBoolean();
+    }
+}