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backport fix for ArithmeticException in Pool #5820

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merged 1 commit into from Dec 17, 2020
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5 changes: 5 additions & 0 deletions jetty-util/src/main/java/org/eclipse/jetty/util/Pool.java
Expand Up @@ -301,6 +301,11 @@ public Entry acquire()
{
LOGGER.ignore(e);
size = entries.size();
// Size can be 0 when the pool is in the middle of
// acquiring a connection while another thread
// removes the last one from the pool.
if (size == 0)
break;
}
index = (index + 1) % size;
}
Expand Down