AutomatonQuery#ramBytesUsed double-counts the underlying Automaton

[Sasilekha]

Description

Description

AutomatonQuery#ramBytesUsed adds automaton.ramBytesUsed() and
compiled.ramBytesUsed() unconditionally:

this.ramBytesUsed =
    BASE_RAM_BYTES + term.ramBytesUsed() + automaton.ramBytesUsed() + compiled.ramBytesUsed();

The over-report equals automaton.ramBytesUsed() exactly.

ramBytesUsed() feeds LRUQueryCache eviction decisions; over-reporting causes premature evictions.

Same bug shape as #16046, which fixed the analogous double-count inside CompiledAutomaton itself.

Version and environment details

Lucene: main (Version.LATEST = LUCENE_11_0_0), commit 2b23728
Also present in: 10.x and 9.x branches
JDK / OS: reproducible on any supported JDK/OS — the bug is in pure Java accounting logic

[mikemccand]

Fixed in 10.6.0 with #16390 and backport. Thanks @Sasilekha!