opendj3/opendj-rest2ldap/src/main/java/org/forgerock/opendj/rest2ldap/SimpleAttributeMapper.java
@@ -183,7 +183,7 @@ final String operator, final Object valueAssertion, final ResultHandler<Filter> h) { if (jsonAttribute.isEmpty()) { try { final ByteString va = encoder().apply(valueAssertion, null); final ByteString va = valueAssertion != null ? encoder().apply(valueAssertion, null) : null; h.handleResult(toFilter(c, type, ldapAttributeName.toString(), va)); } catch (Exception e) { // Invalid assertion value - bad request.