Affects PMD Version:
6.23.0
Description:
ExcessiveParameterListRule must ignore a private constructor!
Otherwise, a builder pattern can't be applied to class with large count of parameters.
Code Sample demonstrating the issue:
public class Immutable {
private final int a1;
...
private final int a9;
// This case must be ignored by ExcessiveParameterListRule
private Immutable(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8, int a9) {
this.a1 = a1;
...
this.a9 = a9;
}
public static final class Builder {
private int a1;
...
private int a9;
public void setA1(final int a1) {
this.a1 = a1;
}
...
public void setA9(final int a9) {
this.a9 = a9;
}
public Immutable build (){
return new Immutable(a1, ... ,a9);
}
}
}
Running PMD through: Maven
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