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8181432: Better processing of unresolved permissions

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Reviewed-by: mullan
This commit is contained in:
Weijun Wang 2017-07-06 09:20:21 +08:00
parent 47efefa42f
commit 3232ef5897
5 changed files with 50 additions and 25 deletions
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20
src/java.base/share/classes/sun/security/util/IOUtils.java
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@ -37,7 +37,7 @@ import java.util.Arrays;
public class IOUtils {
/**
* Read up to <code>length</code> of bytes from <code>in</code>
* Read up to {@code length} of bytes from {@code in}
* until EOF is detected.
* @param is input stream, must not be null
* @param length number of bytes to read
@ -78,4 +78,22 @@ public class IOUtils {
}
return output;
}
/**
* Read {@code length} of bytes from {@code in}. An exception is
* thrown if there are not enough bytes in the stream.
*
* @param is input stream, must not be null
* @param length number of bytes to read, must not be negative
* @return bytes read
* @throws IOException if any IO error or a premature EOF is detected, or
* if {@code length} is negative since this length is usually also
* read from {@code is}.
*/
public static byte[] readNBytes(InputStream is, int length) throws IOException {
if (length < 0) {
throw new IOException("length cannot be negative: " + length);
}
return readFully(is, length, true);
}
}