Nick Hill 0280bd2063 Avoid CancellationException construction in DefaultPromise (#9534) ... Motivation problem with Throwable#addSuppressed() raised in #9151. This introduced a performance issue when promises are cancelled at a high frequency due to the construction cost of CancellationException at the time that DefaultPromise#cancel() is called. Modifications - Reinstate the prior static CANCELLATION_CAUSE_HOLDER but use it just as a sentinel to indicate cancellation, constructing a new CancellationException only if/when one needs to be explicitly returned/thrown - Subclass CancellationException, overriding fillInStackTrace() to minimize the construction cost in these cases Result Promises are much cheaper to cancel. Fixes #9522.		2019-09-05 11:10:55 +02:00
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src	Avoid CancellationException construction in DefaultPromise (#9534)	2019-09-05 11:10:55 +02:00
pom.xml	Add SVM metadata and minimal substitutions to build graalvm native image applications. (#8963)	2019-04-29 09:12:09 +02:00