ConstValInlining.java

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/*
 * @test
 * @bug 4253590 4255513 4115099
 * @summary Verify that non-static fields with a ConstValue attribute inlined only when used as a simple name.
 * @author maddox, gafter (adapted from leo's bug report)
 *
 * @run compile test_ff1.java
 * @run compile ConstValInlining.java
 * @run compile test_ff2.java
 * @run main ConstValInlining
 */

public class ConstValInlining {

    void test() throws Exception {
        Class checksClass = Class.forName("test_ff");
        test_ff obj = new test_ff();
        String reflected_fnl_str = (String)checksClass.getField("fnl_str").get(obj);

        T t = new T();

        // even when used by a qualified name, the compiler must inline
        if (t.fnl_str.equals(reflected_fnl_str))
            throw new Exception("FAILED: compiler failed to inline a qualified nonstatic constant");

        // when used by an unqualified name, they must not differ
        t.test(reflected_fnl_str);
    }

    static class T extends test_ff {
        void test(String reflected) throws Exception {
            // when used by an unqualified qualified name, they must differ
            if (fnl_str.equals(reflected))
                throw new Exception("FAILED: compiler failed to inline an unqualified nonstatic constant");
        }
    };

    public static void main(String args[]) throws Exception {
        new ConstValInlining().test();
    }
}