T6734819a.java

/*
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/*
 * @test
 * @bug 6734819
 * @summary Javac performs flows analysis on already translated classes
 * @author Maurizio Cimadamore
 *
 * @compile/ref=T6734819a.out -XDrawDiagnostics -Xlint:all -XDverboseCompilePolicy T6734819a.java
 */
class Y extends W {}
class W extends Z {}

class Z {
    void m(Z z) {
        W w = (W)z;
    }
}