8157677: Subclasses of Reader do not inherit the contents in the exception tag from the parent Reader class in the latest spec

[Pavel Rappo]

Hi,

Could you please review a trivial change for JDK-8157677?

   http://cr.openjdk.java.net/~prappo/8157677/webrev.00/
   http://cr.openjdk.java.net/~prappo/8157677/specdiff.00/overview-summary.html

Thanks,
-Pavel

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The problem is caused by a glitch in handling '@exception' tag by javadoc tool:

   https://bugs.openjdk.java.net/browse/JDK-8157682