Re: Security manager changing the jdbc Connection class? [Viruschecked]

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On Mon, 13 Jan 2003 09:46:21 -0800, Barry Lind wrote:

I already know this bug... and fixed it in my patch.
Anyone got an eye onto it?

>The jar file should have a org/postgresql/jdbc2/AbstractJdbc2Connection
>in it. AbstractJdbc3Connection extends AbstractJdbc2Connection so both
>are necessary.

>--Barry

>Rich Cullingford wrote:
>> All,
>> This bizarre behaviour occurs after I compile the jdbc jar from source
>> (/usr/local/java/jdk->j2sdk1.4.1, 'configure' & 'gmake' build a JDBC3
>> edition driver). I placed 'postgresql.jar' in /usr/local/java/lib, which
>> is in CLASSPATH.
>>
>> The server has been set up to receive TCP/IP connections. Now I compile
>> and run basic.java in the 'examples' directory, and (with debug 'on') get:
>>
>> [rculling(at)thriller example]$ java basic jdbc:postgresql:rculling rcu
>> ng debug
>> PostgreSQL basic test v6.3 rev 1
>>
>> DriverManager.initialize: jdbc.drivers = null
>> JDBC DriverManager initialized
>> registerDriver: driver[className=org.postgresql.Driver,org.postgresq
>> 2e08]
>> Connecting to Database URL = jdbc:postgresql:rculling
>> DriverManager.getConnection("jdbc:postgresql:rculling")
>> trying driver[className=org.postgresql.Driver,org.postgresql.Dri
>> Exception in thread "main" java.lang.NoClassDefFoundError: org/postg
>> AbstractJdbc2Connection
>> at java.lang.ClassLoader.defineClass0(Native Method)
>> at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
>> at java.security.SecureClassLoader.defineClass(SecureClassLo
>> 3)
>> at java.net.URLClassLoader.defineClass(URLClassLoader.java:2
>> at java.net.URLClassLoader.access$100(URLClassLoader.java:54
>> at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
>> at java.security.AccessController.doPrivileged(Native Method
>> at java.net.URLClassLoader.findClass(URLClassLoader.java:186
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:
>> at java.lang.ClassLoader.defineClass0(Native Method)
>> at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
>> at java.security.SecureClassLoader.defineClass(SecureClassLo
>> 3)
>> at java.net.URLClassLoader.defineClass(URLClassLoader.java:2
>> at java.net.URLClassLoader.access$100(URLClassLoader.java:54
>> at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
>> at java.security.AccessController.doPrivileged(Native Method
>> at java.net.URLClassLoader.findClass(URLClassLoader.java:186
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:
>> at java.lang.Class.forName0(Native Method)
>> at java.lang.Class.forName(Class.java:140)
>> at org.postgresql.Driver.connect(Driver.java:121)
>> at java.sql.DriverManager.getConnection(DriverManager.java:5
>> at java.sql.DriverManager.getConnection(DriverManager.java:1
>> at basic.<init>(basic.java:37)
>> at basic.main(basic.java:212)
>>
>> The relevant source line in org.postgresql.Driver.connect says it's
>> attempting a Class.forName("org.postgresql.jdbc3.Jdbc3Connection"), but
>> by the time the error registers, the system seems to be attempting to
>> load "org.postgres.jdbc2.AbstractJdbc2Cnnection." The jar file has an
>> AbstractJdbc3Connection, but not Jdbc2. Is something funny happening in
>> the do.Privileged() calls by the SecurityManager?
>>
>> I'm stumped. Thanks for any help.
>> Rich Cullingford
>>
>>
>>
>>
>>
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sincerely,

Patric Bechtel
IPCON Informationssysteme

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