HighFile-scopeJava Plug & play

Avoid Using `deleteOnExit()`

Ensure that File.deleteOnExit() is not used, as it can cause memory and resource leaks.

Why this matters

File.deleteOnExit() only deletes files on a normal JVM shutdown, and memory associated with handlers is released only at the end of the process, which can cause resource leaks.

Bad vs. good

Side-by-side examples engineers can pattern-match during review.

Avoid

File file = new File("file.txt");
file.deleteOnExit();  // Noncompliant

Prefer

// (no example provided)

Related rules

From the same buckets as this rule.

Critical
Avoid Duplicating String Literals
Store repeated string literals in constants or variables to improve maintainability and reduce redundancy.
duplication-complexitymaintainability
Critical
Avoid Empty Methods
Detect methods that have an empty body. If a method is empty, ensure that a comment is present explaining why it remains unimplemented.
maintainabilityreadability-refactor
Critical
Avoid modifying built-in prototypes
Detect modifications to built-in prototypes. Modifying built-in objects can lead to compatibility issues and unexpected behavior. Recommend creating helper functions instead.
maintainabilitysecurity-hardening

Why this matters

Bad vs. good

Related rules

Avoid Duplicating String Literals

Avoid Empty Methods

Avoid modifying built-in prototypes

Why this matters

Bad vs. good

Related rules

Avoid Duplicating String Literals

Avoid Empty Methods

Avoid modifying built-in prototypes