class A {
public void f() {
StringBuffer foo = new java.lang.StringBuffer('x'); // Noncompliant [[sc=51;ec=54]] {{Replace the constructor character parameter 'x' with string parameter "x".}}
StringBuilder foo2 = new StringBuilder('x'); // Noncompliant {{Replace the constructor character parameter 'x' with string parameter "x".}}
StringBuffer foo3 = new StringBuffer("x"); // OK
StringBuilder foo4 = new StringBuilder("x"); // OK
}
}