Java Cheatsheets

Finds places where we add null to a collection

Finds array access expressions with an index expression consisting of a unary assignment

Finds places where we call `new com.example.Class(...)`

Finds calls to com.example.Class.methodName

Finds casts from a floating point type to an integer type

Finds places where we catch exceptions of type com.example.AnException

Finds classes/interfaces that extend/implement com.example.Class

Finds comments containing the word 'TODO'

Finds conditional expressions of the form '... ? ... : ...' where the types of the resulting expressions differ

Finds empty block statements

Finds tests like `==true`, `==false`, `!=true`, `!=false`

Finds fields with a 'volatile' modifier

Generates use-definition pairs that provide the data for find-references in the code viewer.

Finds 'if' statements where the 'then' branch is an empty block statement

Finds places where we use the integer literal `0`

Generates use-definition pairs that provide the data for jump-to-definition in the code viewer.

Finds methods with more than ten parameters

Finds methods whose return type is 'void'

Finds pairs of methods that call each other

Finds methods that are native (Java Native Interface)

Finds methods that override com.example.Class.baseMethod

Outputs a representation of a file's Abstract Syntax Tree. This query is used by the VS Code extension.

Finds 'this' accesses that are qualified by a type name

Finds reads of aField (defined on com.example.Class)

Finds return statements that return 'null'

Finds block statements containing a single statement

Finds switch statements with a missing enum constant case and no default case

Finds methods that are synchronized

Finds places where we throw com.example.AnException or one of its subtypes

Finds try-finally statements without a catch clause

Finds local variables that are not accessed

Finds parameters that are not accessed

Finds private methods that are not accessed