On Thu, 2005-02-24 at 10:55 +0900, Joel wrote:
>> I'm trying to connect to a postgresql database through the postgresql
>> jdbc driver, but appears the errors below:
>>
>> "$ java TesteJDBC_PGSQL
>> libgcj-java-placeholder.sh
>>
>> This script is a placeholder for the /usr/bin/java
>> master link required by jpackage.org conventions. libgcj's
>> rmiregistry, rmic and jar tools are now slave symlinks to these
>> masters, and are managed by the alternatives(8) system.
>
>I discovered this the hard way, too.
>
>> This change was necessary because the rmiregistry, rmic and jar tools
>> installed by previous versions of libgcj conflicted with symlinks
>> installed by jpackage.org JVM packages.
>> Iniciando a conexao com o BD...
>> Exception in thread "main" java.lang.NoClassDefFoundError: while
>> resolving class: org.postgresql.Driver
>> at java.lang.VMClassLoader.resolveClass(java.lang.Class)
>> (/usr/lib/libgcj.so.5.0.0)
>> at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.5.0.0)
>> at java.lang.Class.forName(java.lang.String, boolean,
>> java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
>> at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
>> at TesteJDBC_PGSQL.Conecta() (Unknown Source)
>> at TesteJDBC_PGSQL.main(java.lang.String[]) (Unknown Source)
>> Caused by: java.lang.ClassNotFoundException: javax.net.ssl.SSLSocket not
>> found in [file:/usr/share/java/pg74.215.jdbc3.jar, file:./, core:/]
>> "
>>
>> "...
>> public static Connection Conecta()
>> {
>>
>> String url= "jdbc:postgresql:mydb";
>> Connection con;
>> try
>> {
>> System.out.println("Iniciando a conexao com o BD...");
>>
>> Class.forName("org.postgresql.Driver");
>> con = DriverManager.getConnection (url,"","");
>>
>> System.out.println("Banco de Dados Ok e Pronto...");
>> return con;
>> }
>>
>> catch(ClassNotFoundException fnf)
>> {
>> System.out.println("Houve uma ClassNotFoundException: "+fnf);
>> return null;
>> }
>> catch(SQLException sql)
>> {
>> System.out.println("Houve uma SQLException: "+sql);
>> return null;
>> }
>> }
>> ..."
>>
>> My login has permission to create databases and users and I have created
>> a database called mydb. I can use the command 'psql' with this database.
>> I did set TCP/IP to true in /var/lib/pgsql/data/postgresql.conf, too.
>>
>> I'm using the followed configuration:
>> kernel-2.6.10-1.766_FC3
>> kernel-utils-2.4-13.1.49_FC3
>> postgresql-7.4.7-3.FC3.1
>> postgresql-jdbc-7.4.7-3.FC3.1
>> postgresql-libs-7.4.7-3.FC3.1
>> postgresql-server-7.4.7-3.FC3.1
>> gcc-java-3.4.2-6.fc3
>>
>> Does this problem due the libgcj, please?
>
>Likely to be due in part to libgcj.
>
>> Should I remove the gcc-java and install other java, please?
>
>I have been told that if I don't want to use the gnu compiler, I should
>remove the links. I have not been told how to find all the links that
>need to be replaced. Since I don't see the expected configuration
>information in the alternatives configurations, I have no idea what
>links need to be replaced.
>
>I have not been told why they are there.
>
>I just put my own install of Java up in $PATH ahead of /usr/bin -- Put
>scripts called java.sh and java.csh in /etc/profile.d , containing the
>appropriate export and setenv commands, something like
>
> if ! echo ${PATH} | grep -q ${JAVA_HOME}/bin ; then
> export PATH=${JAVA_HOME}/bin:${PATH}
> fi
>
>plus other appropriate stuff in java.sh. But testing the path was
>probably more work than necessary.
>
>I'm sure I'll sometime find some link in one of the lib directories
>biting me, however.
>
>>
>> TIA,
>> Vinicius.
>>
>> P.S.: Does this mailing list the best place to put this type of problem?
>
>Apparently not. I'm not sure where would be better, however.
You may want to try: fedora-devel-java-list@xxxxxxxxxx
>
>--
>Joel Rees <rees@xxxxxxxxxxx>
>digitcom, inc. æåäçãããã
>Kobe, Japan +81-78-672-8800
>** <http://www.ddcom.co.jp> **
>
