package edu.umd.cs.findbugs;

public class FieldWarningSuppressor extends ClassWarningSuppressor {

    FieldAnnotation field;

    public FieldWarningSuppressor(String bugPattern, ClassAnnotation clazz, FieldAnnotation field) {
        super(bugPattern, clazz);
        this.field = field;
    }

    @Override
    public boolean match(BugInstance bugInstance) {

        if (!super.match(bugInstance))
            return false;

        FieldAnnotation bugField = bugInstance.getPrimaryField();
        if (bugField == null || !field.equals(bugField))
            return false;
        if (DEBUG)
            System.out.println("Suppressing " + bugInstance);
        return true;
    }
}

package edu.umd.cs.findbugs;

public class FieldWarningSuppressor extends ClassWarningSuppressor {

    FieldAnnotation field;

    public FieldWarningSuppressor(String bugPattern, ClassAnnotation clazz, FieldAnnotation field) {
        super(bugPattern, clazz);
        this.field = field;
    }

    
    @Override
    public String toString() {
        return String.format("Supress %s in %s.%s", bugPattern, clazz, field);
    }
    @Override
    public boolean match(BugInstance bugInstance) {

        if (!super.match(bugInstance))
            return false;

        FieldAnnotation bugField = bugInstance.getPrimaryField();
        if (bugField == null || !field.equals(bugField))
            return false;
        if (DEBUG)
            System.out.println("Suppressing " + bugInstance);
        return true;
    }
}

add a toString method