test/langtools/tools/javac/StringAppendAccessMethodOnLHS.java

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/*
 * @test
 * @bug 4318526
 * @author iag, maddox
 * @summary Verify that the compiler does not crash if a method in an inner
 * class appends a character to a string declared private in the enclosing
 * class.  Execute the example just for good measure.
 *
 * @run compile StringAppendAccessMethodOnLHS.java
 * @run main StringAppendAccessMethodOnLHS
 */

public class StringAppendAccessMethodOnLHS {

    // s must be declared private.

    private String s = "";

    class Inner {
        void m() {
            s += "a";
            s += 'a';  // this is the case that failed in 4318526
        }
    }

    void test () {
        Inner o = new Inner();
        o.m();
    }

    public static void main(String[] args) throws Exception {
        StringAppendAccessMethodOnLHS o = new StringAppendAccessMethodOnLHS();
        o.test();
        if (!o.s.equals("aa")) throw new Exception();
    }

}