Constructor with too many parameters

Reports constructors whose number of parameters exceeds the specified maximum. Such objects are hard to instantiate, especially if some parameters are optional. Constructors with too many parameters may indicate that refactoring is necessary. Consider applying the builder pattern, for example.

Example:

public BankAccount(long accountNumber,
                   String owner,
                   double balance,
                   double interestRate) {
  // fields initialization
}

Configure the inspection:

Use the Parameter limit field to specify the maximum allowed number of parameters in a constructor.
Use the Ignore constructors with visibility list to specify whether the inspection should ignore constructors with specific visibility.

Inspection options

Option	Type	Default
Parameter limit	Number	5
Ignore constructors with visibility	Dropdown	none

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Java, 233.SNAPSHOT

Last modified: 13 July 2023