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8205132: Degrade Thread.countStackFrames() to throw UOE

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Reviewed-by: mchung, dholmes, dcubed
This commit is contained in:
Alan Bateman 2019-10-31 16:45:58 +00:00
parent 29f2d74173
commit 6d98a3bdd8
7 changed files with 66 additions and 170 deletions
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18
src/java.base/share/classes/java/lang/Thread.java
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@ -1251,20 +1251,20 @@ class Thread implements Runnable {
}
/**
* Counts the number of stack frames in this thread. The thread must
* be suspended.
* Throws {@code UnsupportedOperationException}.
*
* @return the number of stack frames in this thread.
* @throws IllegalThreadStateException if this thread is not
* suspended.
* @deprecated The definition of this call depends on {@link #suspend},
* which is deprecated. Further, the results of this call
* were never well-defined.
* @return nothing
*
* @deprecated This method was originally designed to count the number of
* stack frames but the results were never well-defined and it
* depended on thread-suspension.
* This method is subject to removal in a future version of Java SE.
* @see StackWalker
*/
@Deprecated(since="1.2", forRemoval=true)
public native int countStackFrames();
public int countStackFrames() {
throw new UnsupportedOperationException();
}
/**
* Waits at most {@code millis} milliseconds for this thread to