Java Language Specification, Version Java SE 13 Edition

15. Expressions

3 Documented Misconceptions

ComparisonWithBooleanLiteral

To test whether an expression is true or false, one must compare it to true or to false

MapToBooleanWithConditionalOperator

To map a boolean expression to a boolean, a conditional operator is necessary

MapToBooleanWithIf

To map a boolean expression to a boolean, an if statement is necessary