Nhdta-859-javhd-today-0530202203-48-37 Min
| Owner | Action | Due Date |
|-------|--------|----------|
| Bob K. | Resolve API timeout issue (#452) and re‑run integration suite. | 2022‑06‑01 |
| Carla M. | Apply UI CSS fix and verify across supported browsers. | 2022‑05‑31 |
| Alice B. | Coordinate staging deployment of migrate_v2.sql; confirm backup strategy. | 2022‑06‑03 |
| Sam L. | Present updated metrics and migration plan at Sprint Review (June 2). | 2022‑06‑02 |
| QA Team | Execute regression suite on the fixed build; close tickets #453 & #457. | 2022‑06‑01 |
| Metric | Reference Implementation (JAVHD) | Native Baseline (FFmpeg + CUDA) | Δ (Improvement) | |--------|-----------------------------------|----------------------------------|-----------------| | End‑to‑end latency (capture → display) | 4.2 ms | 6.8 ms | ‑38 % | | CPU utilization (single‑core) | 12 % | 19 % | ‑37 % | | GPU memory bandwidth (GB/s) | 84 | 78 | +8 % | | Packet loss under 100 Mbps burst | < 0.02 % | 0.07 % | ‑71 % | | Power draw (laptop, i7‑12700H) | 15 W | 19 W | ‑21 % | NHDTA-859-JAVHD-TODAY-0530202203-48-37 Min
Test conditions: 4K @ 60 fps, H.265‑Main10, 10‑bit color, live capture from a Blackmagic 12G‑SDI card, streamed over a 100 Mbps Ethernet link with induced jitter. | Owner | Action | Due Date |
The 48‑minute demo highlighted not just raw numbers but also stability: the Java runtime remained GC‑free for the entire duration thanks to the ZGC collector tuned for low‑pause operation. No frame drops were observed, and the system maintained smooth back‑pressure when the network temporarily saturated. | Metric | Reference Implementation (JAVHD) | Native
| Issue | Recommendation |
|-------|----------------|
| Unsafe deserialization – Message.readObject executes arbitrary commands based on the payload. | Never execute untrusted data. Remove the exec: logic or, if command execution is required, whitelist allowed commands and validate the input. |
| Missing input validation – No checks on payload length or content. | Enforce strict schema validation before deserialization (e.g., use JSON / protobuf instead of Java serialization). |
| Use of ObjectInputStream with enableResolveObject(true) – This enables custom object resolution, which can be abused. | Prefer safer alternatives (ObjectMapper for JSON) and disable resolveObject unless absolutely needed. |
| No sandbox – The process runs with the same privileges as the user, allowing Runtime.exec. | Run deserialization in a sandbox (Docker container, limited user, seccomp profile). |
| Hard‑coded flag location – flag.txt resides in the same directory as the service. | Store secrets outside the execution environment (environment variables, secret manager). |
In the early days of computing (1970s–1980s), file names were limited to eight characters plus a three‑character extension (the infamous “8.3” format). Users had to be concise: REPORT1.TXT, IMG001.JPG. There was little room for descriptive information; instead, operating systems and early databases relied heavily on external metadata files or manual documentation.