72 lines
1.5 KiB
Java
72 lines
1.5 KiB
Java
/*
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* @test /nodynamiccopyright/
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* @bug 6563143 8008436 8009138
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* @summary javac should issue a warning for overriding equals without hashCode
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* @summary javac should not issue a warning for overriding equals without hasCode
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* @summary javac, equals-hashCode warning tuning
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* if hashCode has been overriden by a superclass
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* @compile/ref=EqualsHashCodeWarningTest.out -Xlint:overrides -XDrawDiagnostics EqualsHashCodeWarningTest.java
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*/
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import java.util.Comparator;
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public class EqualsHashCodeWarningTest {
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@Override
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public boolean equals(Object o) {
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return o == this;
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}
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@Override
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public int hashCode() {
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return 0;
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}
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public Comparator m() {
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return new Comparator() {
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@Override
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public boolean equals(Object o) {return true;}
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@Override
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public int compare(Object o1, Object o2) {
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return 0;
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}
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};
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}
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}
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class SubClass extends EqualsHashCodeWarningTest {
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@Override
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public boolean equals(Object o) {
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return true;
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}
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}
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@SuppressWarnings("overrides")
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class DontWarnMe {
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@Override
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public boolean equals(Object o) {
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return true;
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}
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}
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class DoWarnMe {
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@Override
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public boolean equals(Object o) {
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return o == this;
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}
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}
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abstract class IamAbstractGetMeOutOfHere {
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public boolean equals(Object o){return true;}
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}
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interface I {
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public boolean equals(Object o);
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}
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enum E {
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A, B
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}
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@interface anno {}
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