Hello,
For some reason, the code below will make it to "case other" when the
map.get(key) returns None. In other words, "case None" will not match the
"None" returned by map.get(key).
I did not redefine "None" anywhere.
map.get(key) match {
case Some(ent) =>
ent.update()
case None =>
Log.error("None")
case other =>
Log.error("other: " + other)
}
The above code runs within an Actor (i.e.: multithreading) and it's quite
likely the thread that populates the map is not the one reading it later.
I'm only ever accessing the map from within this Actor, however.
I have ran the following code within "case other":
Log.error("classloaders: " +
other.getClass.getClassLoader.eq(None.getClass.getClassLoader)) // true
Log.error("class: " + (other.getClass() == None.getClass())) // true
Log.error("hash: " + (other.hashCode == None.hashCode())) // true
Log.error("system hash: " + (System.identityHashCode(other) ==
System.identityHashCode(None))) // false
Log.error("test 1: " + (None == other)) // false
Log.error("test 2: " + (None.eq(other))) // false
Log.error("test 3: " + (None.equals(other))) // false
The file path from which scala.None$ is loaded is the same for "other" and
"None".
I'm running out of ideas here, what can I do next to troubleshoot and find
the root cause ?
Regards,
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