Обсуждение: Re: [BUGS] BUG #14166: JDBC driver won't parse error message from DBserver in German
Re: [BUGS] BUG #14166: JDBC driver won't parse error message from DBserver in German
От
Michael Paquier
Дата:
On Tue, May 31, 2016 at 11:32 PM, <davygora@sulzer.de> wrote: > The following bug has been logged on the website: > > Bug reference: 14166 > Logged by: Yuriy Davygora > Email address: davygora@sulzer.de > PostgreSQL version: 9.5.3 > Operating system: Windows 7 64 bit > Description: > > Prerequisites (all local, no remote servers): > - PostgreSQL DB 9.5.3 with locale German_Germany.1252 > - PostgreSQL JDBC driver postgresql-9.4.1208.jar (jre8) > - Payara JEE server 4.1.1.161.1 > - Oracle JDK 1.8.0_72 > - Misconfiguration of the JDBC connection in the domain.xml file causing > the DB connection error (see below) > > The JDBC driver provides a property 'DatabaseName' which I set to the > correct database name which is different from the user name. Here is an > excerpt from domain.xml: > > <property name="DatabaseName" value="database_name"></property> > <property name="User" value="user_name"></property> > <property name="PortNumber" value="5432"></property> > <property name="Url" value="jdbc:postgresql://localhost/"></property> > > -------------------------- > > Bug description: > > The DB connection error was "database does not exist" (which I found out > after switching the locale from German to English). To fix I had to include > the database name in the URL as follows: > > <property name="Url" > value="jdbc:postgresql://localhost/database_name?"></property> > > While the locale of the DB server was still set to German, however, I did > get a different message. Here is an excerpt from the stacktrace: > > Caused by: java.io.IOException: Ungültige UTF-8-Sequenz: das erste Byte ist > 10xxxxxx: 132 > at org.postgresql.core.UTF8Encoding.decode(UTF8Encoding.java:104) > at org.postgresql.core.PGStream.ReceiveString(PGStream.java:331) > at > org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:705) > at > org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:213) > ... 90 more > ]] > > I downloaded the sources of the JDBC driver to find out where the error > comes from. It turned out, that the exception is thrown when the JDBC driver > cannot parse the error message from the DB server. Thus, I don't ever get to > see the original error message. > > As mentioned above, setting the locale to English allowed me to see the > error and fix it quickly. However, it would be nice, if the error messages > could be parsed in any language. > > -------------------------- > > P.S. This has nothing to do with the reported bug, however it might be a bug > in its own right. While the configuration was still as shown in the > prerequisites section, occasionally the JDBC connection would work, about > 30% of the time, on a seemingly random basis. This does not seem related to Postgres itself, but to the JDBC driver, so I switched the report to pgsql-jdbc. -- Michael