ECO-CMP-JAVA-008 — Excessive synchronization contention¶

Category: Computation (CMP)
Family: Java (JAVA)
Layer: Code
Tier: 2
Severity: warning
Tags: java, contention
Legacy ID: ECO-JAVA-008

Summary¶

Over-synchronization creates contention and wastes CPU.

Contention turns CPU into waiting; throughput collapses under load.

{
  "confidence": 0.7,
  "notes": "Often visible as lock wait.",
  "type": "cpu"
}

{
  "languages": [
    "java"
  ],
  "method": "trace"
}

{
  "guidance": "Reduce lock scope; use concurrent structures; redesign hotspots.",
  "tradeoffs": "Harder correctness work."
}

{
  "system_layers": [
    "code"
  ]
}