60 lines
1.4 KiB
Java
60 lines
1.4 KiB
Java
/*
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* @test /nodynamiccopyright/
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* @bug 8310835
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* @compile/ref=EnumExtern.out -XDrawDiagnostics -Xlint:serial EnumExtern.java
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* @compile/ref=empty.out -XDrawDiagnostics EnumExtern.java
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*/
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import java.io.*;
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enum EnumExtern implements Externalizable {
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INSTANCE;
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// Verify a warning is generated in an enum class for each of the
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// distinguished serial fields and methods as well as extern methods.
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private static final long serialVersionUID = 42;
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private static final ObjectStreamField[] serialPersistentFields = {};
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private void writeObject(ObjectOutputStream stream) throws IOException {
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stream.defaultWriteObject();
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}
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private Object writeReplace() throws ObjectStreamException {
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return null;
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}
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private void readObject(ObjectInputStream stream)
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throws IOException, ClassNotFoundException {
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stream.defaultReadObject();
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}
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private void readObjectNoData() throws ObjectStreamException {
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return;
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}
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private Object readResolve() throws ObjectStreamException {
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return null;
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}
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// ineffective Externalizable methods
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@Override
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public void writeExternal(ObjectOutput oo) {
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;
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}
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@Override
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public void readExternal(ObjectInput oi) {
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;
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}
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// _Not_ Externalizable methods; shouldn't generate a warning
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public void writeExternal() {
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;
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}
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public void readExternal() {
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;
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}
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}
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