Re: Java UnsatisfiedLinkError exception when connecting to Postgresqldatabase

On 11/14/18 10:24 AM, dclark@cinci.rr.com wrote:
Please reply to list also.
Ccing list.
> 
> ---- Adrian Klaver <adrian.klaver@aklaver.com> wrote:
>> On 11/14/18 9:25 AM, dclark@cinci.rr.com wrote:
>>> Hello;
>>>
>>> I've written a Java program which uses Postgresql via JDBC.  The program works fine on all RedHat systems I've
testedexcept one, where it yields an UnsatisifiedLinkError.  Here is the stack trace:
 
>>>
>>> sun.misc.VM.latestUserDefinedLoader0(Native
>>> Method)
>>> sun.misc.VM.latestUserDefinedLoader(VM.java:411)
>>> java.io.ObjectInputStream.latestUserDefinedLoader(ObjectInputStream.java:2351)
>>> java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:686)
>>> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1866)
>>> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1749)
>>> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2040)
>>> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1571)
>>> java.io.ObjectInputStream.readObject(ObjectInputStream.java:431)
>>> org.postgresql.ds.common.BaseDataSource.readBaseObject(BaseDataSource.java:1210)
>>> org.postgresql.ds.common.BaseDataSource.initializeFrom(BaseDataSource.java:1220)
>>> org.postgresql.ds.PGPoolingDataSource.initialize(PGPoolingDataSource.java:267)
>>> org.postgresql.ds.PGPoolingDataSource.getConnection(PGPoolingDataSource.java:324)
>>>
>>> Any ideas?
>>
>> What is different about the system that throws the error?
>>
>> For example:
>>
>> OS version
>> JDBC version
>> Postgres version
>> Java version
> 
> Thank you for your reply.
> 
> OS on working system: Linux 3.10.0-693.11.6.el7.x86_64 x86_64
> OS on problem system: Linux 3.10.0-693.21.1.el7.x86_64 x86_64
> 
> JDBC version on both systems: 9.4.1209
> 
> Postgres version on both systems: 9.6.5 on x86_64-redhat-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat
4.8.5-11),64-bit
 
> 
> Java version on both systems:
>   
> openjdk version "1.8.0_171"
> OpenJDK Runtime Environment (build 1.8.0_171-b10)
> OpenJDK 64-Bit Server VM (build 25.171-b10, mixed mode)
> 

Hmm.
So what was the UnsatisifiedLinkError message, before the traceback above?


-- 
Adrian Klaver
adrian.klaver@aklaver.com