adamkennedy commented on code in PR #38016:
URL: https://github.com/apache/arrow/pull/38016#discussion_r1391784922
##########
java/memory/memory-core/src/main/java/org/apache/arrow/memory/DefaultAllocationManagerOption.java:
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@@ -130,4 +142,18 @@ private static AllocationManager.Factory getNettyFactory()
{
" No DefaultAllocationManager found to instantiate an
NettyAllocationManager", e);
}
}
+
+ private static AllocationManager.Factory getFfmFactory() {
+ try {
+ return getFactory("org.apache.arrow.memory.FfmAllocationManager");
+ } catch (RuntimeException e) {
+ if (majorVersion < 21) {
Review Comment:
Would we also have to detect that preview features are actually turned on
and the underlying FFM libraries are available in that specific Java 21+ VM
instance?
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