BUG #15130: outer-join-escape syntax seems not to work with latest jdbc-driver

The following bug has been logged on the website:

Bug reference: 15130
Logged by: Markus Koch
Email address: markus(dot)koch(at)community4you(dot)de
PostgreSQL version: 9.4.7
Operating system: SuSE Linux
Description:

We are using Crystal Report Java Reporting Component (JRC) to create
reports.

Crystal reports creates queries like this:
SELECT "CODE"."system_bez",
"FAHRZEUG"."fahrzeug_id", "FAHRZEUG"."hersteller", "FAHRZEUG"."x_inaktiv",

"G_PARTNER"."g_partner_id", "CODE"."code_table", "G_PARTNER"."name"
FROM {oj ("public"."fahrzeug" "FAHRZEUG" LEFT OUTER JOIN
"public"."g_partner"
"G_PARTNER" ON "FAHRZEUG"."g_partner_id"="G_PARTNER"."g_partner_id")
LEFT OUTER JOIN "public"."code" "CODE" ON
"FAHRZEUG"."obj_code_id"="CODE"."code_id"}
WHERE ("G_PARTNER"."g_partner_id"=1 AND "FAHRZEUG"."x_inaktiv"
IS NULL AND ("CODE"."code_table"='OBJ_TYP' AND
"CODE"."system_bez"='FAHRZEUG'))
ORDER BY "G_PARTNER"."g_partner_id"

According to this page:
https://jdbc.postgresql.org/documentation/head/outer-joins-escape.html
this syntax should still work but in fact it works only up to
postgresql-9.4.1211.jre7.jar.

If we replace the jdbc-driver postgresql-9.4.1212.jre7.jar or a newer
version we're getting this error: ERROR: syntax error at or near "{"

I think this is related to the postgres-jdbc-driver because this is the only
lib I have replaced.

Markus