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8204930: Reader:nullReader() spec does not match the behavior

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Reviewed-by: bpb, rriggs
This commit is contained in:
Patrick Reinhart 2018-06-25 14:36:16 -07:00 • committed by Brian Burkhalter
parent 123fee1d38
commit f44956330d
2 changed files with 20 additions and 5 deletions
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13
src/java.base/share/classes/java/io/Reader.java
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@ -63,13 +63,12 @@ public abstract class Reader implements Readable, Closeable {
*
* <p> While the stream is open, the {@code read()}, {@code read(char[])},
* {@code read(char[], int, int)}, {@code read(Charbuffer)}, {@code
* ready())}, {@code skip(long)}, and {@code transferTo()} methods all
* behave as if end of stream has been reached. After the stream has been
* ready()}, {@code skip(long)}, and {@code transferTo()} methods all
* behave as if end of stream has been reached. After the stream has been
* closed, these methods all throw {@code IOException}.
*
* <p> The {@code markSupported()} method returns {@code false}. The
* {@code mark()} method does nothing, and the {@code reset()} method
* throws {@code IOException}.
* {@code mark()} and {@code reset()} methods throw an {@code IOException}.
*
* <p> The {@link #lock object} used to synchronize operations on the
* returned {@code Reader} is not specified.
@ -114,6 +113,12 @@ public abstract class Reader implements Readable, Closeable {
return 0;
}
@Override
public boolean ready() throws IOException {
ensureOpen();
return false;
}
@Override
public long skip(long n) throws IOException {
ensureOpen();