okhttp: optimize HPACK to index :path and fix dynamic table eviction - #1
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okhttp: optimize HPACK to index :path and fix dynamic table eviction#1skrcode wants to merge 2 commits into
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…bugs (grpc#12819) Allow the :path pseudo-header to be added to the HPACK dynamic table in the gRPC-Java OkHttp transport, resolving the original goal of grpc#12819 and redoing reverted commit 397d3e7 (grpc#12799, grpc#12820). Background & Root Cause: In gRPC over HTTP/2, :path headers represent static service/method names (e.g., /package.Service/Method), which are constant across RPC calls. Previously, indexing :path was reverted (grpc#12820) because high dynamic table churn uncovered latent bugs in legacy OkHttp Hpack.java: 1. Off-by-one NPE loop bound in evictToRecoverBytes: When bytesToRecover exceeded total dynamic table size, the loop condition (j >= nextDynamicTableIndex) inspected the unallocated nextDynamicTableIndex slot containing null, throwing a NullPointerException. Fixed by changing the loop bound to (j > nextDynamicTableIndex). 2. Reference leak post-eviction: System.arraycopy shifted active entries rightward, but left stale Header/ByteString references in vacated array slots. Fixed by setting vacated array slots to null via Arrays.fill(). 3. Case sensitivity normalization: Header entries inserted into dynamicTable are now guaranteed to store lowercased name keys, preventing failed dynamic table header lookups. 4. Table Size Setting Handling: Works in conjunction with grpc#12818 (SETTINGS_HEADER_TABLE_SIZE handling). Fixes grpc#12819 Related: grpc#12799, grpc#12818, grpc#12820, b/514688016
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JAIPilot evaluation mirror of grpc#12907.
d0272ef78f4e78983cb1f19ac25d1561ec26cc1bThis mirror preserves the contributor tree exactly. Any JAIPilot result should appear as a separate draft companion PR; this is not an upstream submission.