pi-lens/rules/tree-sitter-queries/java/infinite-loop-java.yml

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# Infinite Loop
# Detects potentially infinite while(true) loops without break
id: infinite-loop-java
name: Loops Should Not Be Infinite
severity: error
category: reliability
defect_class: correctness
inline_tier: blocking
language: java

message: "Loop appears to be infinite with no break condition"

description: |
  while(true) or for(;;) without a break condition creates an
  infinite loop. Ensure there's an exit condition with break,
  return, or System.exit().

  ✅ FIX: Add break condition or use scheduled executor

  ```java
  while (running) {  // GOOD - control flag
      if (shouldStop()) break;
  }
  ```

query: |
  (while_statement
    condition: (true) @COND
    body: (block) @BODY)
  (for_statement
    condition: (null)
    body: (block) @BODY)

metavars:
  - COND
  - BODY

post_filter: no_break_or_return

tags:
  - reliability
  - java
  - cert
  - bugs

examples:
  bad: |
    while (true) {  // BAD - infinite
        doWork();
    }

  good: |
    while (true) {  // GOOD - has exit
        if (shouldStop()) break;
        doWork();
    }

has_fix: false