*/
    public Set<String> getRequiredActiveProfileIds() {
        return getProfileIds(pa -> !pa.optional && pa.active);
    }

    /**
     * @return Optional active profile identifiers, never {@code null}.
     */
    public Set<String> getOptionalActiveProfileIds() {
        return getProfileIds(pa -> pa.optional && pa.active);
    }

    /**

    // The Unicode point {@code 00df} is the lowercase form of sharp-S (ß), whose uppercase is "SS".
    assertEquals("PASSWORD", "pa\u00dfword".toUpperCase()); // [*]
    assertFalse("pa\u00dfword".equalsIgnoreCase("PASSWORD")); // [*]
    assertFalse(Ascii.equalsIgnoreCase("pa\u00dfword", "PASSWORD"));
  }

    // The Unicode point {@code 00df} is the lowercase form of sharp-S (ß), whose uppercase is "SS".
    assertEquals("PASSWORD", "pa\u00dfword".toUpperCase()); // [*]
    assertFalse("pa\u00dfword".equalsIgnoreCase("PASSWORD")); // [*]
    assertFalse(Ascii.equalsIgnoreCase("pa\u00dfword", "PASSWORD"));
  }

     */
    public Set<String> getRequiredActiveProjectSelectors() {
        return getProjectSelectors(pa -> !pa.optional && pa.active);
    }

    /**
     * @return Optional active project selectors, never {@code null}.
     */
    public Set<String> getOptionalActiveProjectSelectors() {
        return getProjectSelectors(pa -> pa.optional && pa.active);
    }

    /**
     * @return Required inactive project selectors, never {@code null}.

ne: नेपाली
ng: Owambo
nl: Nederlands
nn: Norsk nynorsk
'no': Norsk
nr: isiNdebele
nv: Diné bizaad
ny: chiCheŵa
oc: occitan
oj: ᐊᓂᔑᓈᐯᒧᐎᓐ
om: Afaan Oromoo
or: ଓଡ଼ିଆ
os: ирон æвзаг
pa: ਪੰਜਾਬੀ
pi: पाऴि
pl: Polski
ps: پښتو
pt: português
qu: Runa Simi
rm: rumantsch grischun
rn: Ikirundi
ro: Română
ru: русский язык
rw: Ikinyarwanda
sa: संस्कृतम्
sc: sardu
sd: सिन्धी