# Improvements to Java analysis

## General improvements


## New queries

| **Query**                   | **Tags**  | **Purpose**                                                        |
|-----------------------------|-----------|--------------------------------------------------------------------|
| Double-checked locking is not thread-safe (`java/unsafe-double-checked-locking`) | reliability, correctness, concurrency, external/cwe/cwe-609 | Identifies wrong implementations of double-checked locking that does not use the `volatile` keyword. |
| Race condition in double-checked locking object initialization (`java/unsafe-double-checked-locking-init-order`) | reliability, correctness, concurrency, external/cwe/cwe-609 | Identifies wrong implementations of double-checked locking that performs additional initialization after exposing the constructed object. |

## Changes to existing queries

| **Query**                  | **Expected impact**    | **Change**                                                       |
|----------------------------|------------------------|------------------------------------------------------------------|

## Changes to QL libraries