Unable to load class org/postgresql/pljava/internal/Backend

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Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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Hi there,

I am having some problem when trying to experiment with a hello world
example.  When I run the following command I am getting this error
message.
I am not sure what I am doing wrong.
The class path seems to be correct.  I have the pljava.jar file in /root/mydir
How can I resolve this.  Thanks,

SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
'helloworld_jar',  false);
WARNING:  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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Hi there,

I have read through some of the mail threads, and noticed that people
had the same problem before.  I am using postgres 8.1.11 and plJava
1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
sure if I have the same problem that was mentioned in other threads(
about zlib conflict).  Please let me know.  Thank you very much.


On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...> wrote:

> Hi there,
>
> I am having some problem when trying to experiment with a hello world
> example.  When I run the following command I am getting this error
> message.
> I am not sure what I am doing wrong.
> The class path seems to be correct.  I have the pljava.jar file in /root/mydir
> How can I resolve this.  Thanks,
>
> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
> 'helloworld_jar',  false);
> WARNING:  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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Here are the info I got in the server logs.

LOCATION:  SetTransactionIdLimit, varsup.c:234
DEBUG:  00000: Not using integer_datetimes
LOCATION:  checkIntTimeType,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:538
DEBUG:  00000: Added JVM option string
"-Djava.class.path=/root/thanesh/pljava.jar"
LOCATION:  JVMOptList_add,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
DEBUG:  00000: Added JVM option string
"-Dsqlj.defaultconnection=jdbc:default:connection"
LOCATION:  JVMOptList_add,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
DEBUG:  00000: Added JVM option string "vfprintf"
LOCATION:  JVMOptList_add,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
DEBUG:  00000: Added JVM option string "-Xrs"
LOCATION:  JVMOptList_add,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
DEBUG:  00000: Creating JavaVM
LOCATION:  initializeJavaVM,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:640
DEBUG:  00000: JavaVM created
LOCATION:  initializeJavaVM,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:660
DEBUG:  00000: Getting Backend class pljava.jar
LOCATION:  initPLJavaClasses,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
WARNING:  XX000: java.lang.NoClassDefFoundError:
org/postgresql/pljava/internal/Backend
LOCATION:  elogExceptionMessage,
/home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
DEBUG:  00000: Destroying JavaVM...
LOCATION:  _destroyJavaVM,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
c DEBUG:  00000: JavaVM destroyed
LOCATION:  _destroyJavaVM,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
ERROR:  XX000: Unable to load class
org/postgresql/pljava/internal/Backend using CLASSPATH
'-Djava.class.path=/root/thanesh/pljava.jar'
 LOCATION:  PgObject_getJavaClass,
/home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116


On Tue, Oct 21, 2008 at 10:05 AM, Nelli Vanan <ambulimama@...> wrote:

> Hi there,
>
> I have read through some of the mail threads, and noticed that people
> had the same problem before.  I am using postgres 8.1.11 and plJava
> 1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
> sure if I have the same problem that was mentioned in other threads(
> about zlib conflict).  Please let me know.  Thank you very much.
>
>
> On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...> wrote:
>> Hi there,
>>
>> I am having some problem when trying to experiment with a hello world
>> example.  When I run the following command I am getting this error
>> message.
>> I am not sure what I am doing wrong.
>> The class path seems to be correct.  I have the pljava.jar file in /root/mydir
>> How can I resolve this.  Thanks,
>>
>> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
>> 'helloworld_jar',  false);
>> WARNING:  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
>> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>>
>
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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Actually my classpath is set to /root/thanesh/pljava.jar and not
/root/mydir/pljava.jar as in the first mail.


On Tue, Oct 21, 2008 at 11:00 AM, Nelli Vanan <ambulimama@...> wrote:

> Here are the info I got in the server logs.
>
> LOCATION:  SetTransactionIdLimit, varsup.c:234
> DEBUG:  00000: Not using integer_datetimes
> LOCATION:  checkIntTimeType,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:538
> DEBUG:  00000: Added JVM option string
> "-Djava.class.path=/root/thanesh/pljava.jar"
> LOCATION:  JVMOptList_add,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
> DEBUG:  00000: Added JVM option string
> "-Dsqlj.defaultconnection=jdbc:default:connection"
> LOCATION:  JVMOptList_add,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
> DEBUG:  00000: Added JVM option string "vfprintf"
> LOCATION:  JVMOptList_add,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
> DEBUG:  00000: Added JVM option string "-Xrs"
> LOCATION:  JVMOptList_add,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
> DEBUG:  00000: Creating JavaVM
> LOCATION:  initializeJavaVM,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:640
> DEBUG:  00000: JavaVM created
> LOCATION:  initializeJavaVM,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:660
> DEBUG:  00000: Getting Backend class pljava.jar
> LOCATION:  initPLJavaClasses,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
> java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
> WARNING:  XX000: java.lang.NoClassDefFoundError:
> org/postgresql/pljava/internal/Backend
> LOCATION:  elogExceptionMessage,
> /home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
> DEBUG:  00000: Destroying JavaVM...
> LOCATION:  _destroyJavaVM,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
> c DEBUG:  00000: JavaVM destroyed
> LOCATION:  _destroyJavaVM,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
> ERROR:  XX000: Unable to load class
> org/postgresql/pljava/internal/Backend using CLASSPATH
> '-Djava.class.path=/root/thanesh/pljava.jar'
>  LOCATION:  PgObject_getJavaClass,
> /home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116
>
>
> On Tue, Oct 21, 2008 at 10:05 AM, Nelli Vanan <ambulimama@...> wrote:
>> Hi there,
>>
>> I have read through some of the mail threads, and noticed that people
>> had the same problem before.  I am using postgres 8.1.11 and plJava
>> 1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
>> sure if I have the same problem that was mentioned in other threads(
>> about zlib conflict).  Please let me know.  Thank you very much.
>>
>>
>> On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...> wrote:
>>> Hi there,
>>>
>>> I am having some problem when trying to experiment with a hello world
>>> example.  When I run the following command I am getting this error
>>> message.
>>> I am not sure what I am doing wrong.
>>> The class path seems to be correct.  I have the pljava.jar file in /root/mydir
>>> How can I resolve this.  Thanks,
>>>
>>> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
>>> 'helloworld_jar',  false);
>>> WARNING:  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>>> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
>>> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>>>
>>
>
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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Sorry to be spamming your mailbox.  I am struggling to get this
resolved.  I am using  jdk1.5.0_11 so the zlib conflict might not be
the problem.

On Tue, Oct 21, 2008 at 11:02 AM, Nelli Vanan <ambulimama@...> wrote:

> Actually my classpath is set to /root/thanesh/pljava.jar and not
> /root/mydir/pljava.jar as in the first mail.
>
>
> On Tue, Oct 21, 2008 at 11:00 AM, Nelli Vanan <ambulimama@...> wrote:
>> Here are the info I got in the server logs.
>>
>> LOCATION:  SetTransactionIdLimit, varsup.c:234
>> DEBUG:  00000: Not using integer_datetimes
>> LOCATION:  checkIntTimeType,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:538
>> DEBUG:  00000: Added JVM option string
>> "-Djava.class.path=/root/thanesh/pljava.jar"
>> LOCATION:  JVMOptList_add,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>> DEBUG:  00000: Added JVM option string
>> "-Dsqlj.defaultconnection=jdbc:default:connection"
>> LOCATION:  JVMOptList_add,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>> DEBUG:  00000: Added JVM option string "vfprintf"
>> LOCATION:  JVMOptList_add,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>> DEBUG:  00000: Added JVM option string "-Xrs"
>> LOCATION:  JVMOptList_add,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>> DEBUG:  00000: Creating JavaVM
>> LOCATION:  initializeJavaVM,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:640
>> DEBUG:  00000: JavaVM created
>> LOCATION:  initializeJavaVM,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:660
>> DEBUG:  00000: Getting Backend class pljava.jar
>> LOCATION:  initPLJavaClasses,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
>> java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>> WARNING:  XX000: java.lang.NoClassDefFoundError:
>> org/postgresql/pljava/internal/Backend
>> LOCATION:  elogExceptionMessage,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
>> DEBUG:  00000: Destroying JavaVM...
>> LOCATION:  _destroyJavaVM,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
>> c DEBUG:  00000: JavaVM destroyed
>> LOCATION:  _destroyJavaVM,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
>> ERROR:  XX000: Unable to load class
>> org/postgresql/pljava/internal/Backend using CLASSPATH
>> '-Djava.class.path=/root/thanesh/pljava.jar'
>>  LOCATION:  PgObject_getJavaClass,
>> /home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116
>>
>>
>> On Tue, Oct 21, 2008 at 10:05 AM, Nelli Vanan <ambulimama@...> wrote:
>>> Hi there,
>>>
>>> I have read through some of the mail threads, and noticed that people
>>> had the same problem before.  I am using postgres 8.1.11 and plJava
>>> 1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
>>> sure if I have the same problem that was mentioned in other threads(
>>> about zlib conflict).  Please let me know.  Thank you very much.
>>>
>>>
>>> On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...> wrote:
>>>> Hi there,
>>>>
>>>> I am having some problem when trying to experiment with a hello world
>>>> example.  When I run the following command I am getting this error
>>>> message.
>>>> I am not sure what I am doing wrong.
>>>> The class path seems to be correct.  I have the pljava.jar file in /root/mydir
>>>> How can I resolve this.  Thanks,
>>>>
>>>> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
>>>> 'helloworld_jar',  false);
>>>> WARNING:  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>>>> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
>>>> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>>>>
>>>
>>
>
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Kris Jurka-2 :: Rate this Message:

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Is /root accessible by the user the postgresql server is running as?

Nelli Vanan wrote:

> Sorry to be spamming your mailbox.  I am struggling to get this
> resolved.  I am using  jdk1.5.0_11 so the zlib conflict might not be
> the problem.
>
> On Tue, Oct 21, 2008 at 11:02 AM, Nelli Vanan <ambulimama@...> wrote:
>> Actually my classpath is set to /root/thanesh/pljava.jar and not
>> /root/mydir/pljava.jar as in the first mail.
>>
>>
>> On Tue, Oct 21, 2008 at 11:00 AM, Nelli Vanan <ambulimama@...> wrote:
>>> Here are the info I got in the server logs.
>>>
>>> LOCATION:  SetTransactionIdLimit, varsup.c:234
>>> DEBUG:  00000: Not using integer_datetimes
>>> LOCATION:  checkIntTimeType,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:538
>>> DEBUG:  00000: Added JVM option string
>>> "-Djava.class.path=/root/thanesh/pljava.jar"
>>> LOCATION:  JVMOptList_add,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>> DEBUG:  00000: Added JVM option string
>>> "-Dsqlj.defaultconnection=jdbc:default:connection"
>>> LOCATION:  JVMOptList_add,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>> DEBUG:  00000: Added JVM option string "vfprintf"
>>> LOCATION:  JVMOptList_add,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>> DEBUG:  00000: Added JVM option string "-Xrs"
>>> LOCATION:  JVMOptList_add,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>> DEBUG:  00000: Creating JavaVM
>>> LOCATION:  initializeJavaVM,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:640
>>> DEBUG:  00000: JavaVM created
>>> LOCATION:  initializeJavaVM,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:660
>>> DEBUG:  00000: Getting Backend class pljava.jar
>>> LOCATION:  initPLJavaClasses,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
>>> java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>>> WARNING:  XX000: java.lang.NoClassDefFoundError:
>>> org/postgresql/pljava/internal/Backend
>>> LOCATION:  elogExceptionMessage,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
>>> DEBUG:  00000: Destroying JavaVM...
>>> LOCATION:  _destroyJavaVM,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
>>> c DEBUG:  00000: JavaVM destroyed
>>> LOCATION:  _destroyJavaVM,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
>>> ERROR:  XX000: Unable to load class
>>> org/postgresql/pljava/internal/Backend using CLASSPATH
>>> '-Djava.class.path=/root/thanesh/pljava.jar'
>>>  LOCATION:  PgObject_getJavaClass,
>>> /home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116
>>>
>>>
>>> On Tue, Oct 21, 2008 at 10:05 AM, Nelli Vanan <ambulimama@...> wrote:
>>>> Hi there,
>>>>
>>>> I have read through some of the mail threads, and noticed that people
>>>> had the same problem before.  I am using postgres 8.1.11 and plJava
>>>> 1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
>>>> sure if I have the same problem that was mentioned in other threads(
>>>> about zlib conflict).  Please let me know.  Thank you very much.
>>>>
>>>>
>>>> On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...> wrote:
>>>>> Hi there,
>>>>>
>>>>> I am having some problem when trying to experiment with a hello world
>>>>> example.  When I run the following command I am getting this error
>>>>> message.
>>>>> I am not sure what I am doing wrong.
>>>>> The class path seems to be correct.  I have the pljava.jar file in /root/mydir
>>>>> How can I resolve this.  Thanks,
>>>>>
>>>>> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
>>>>> 'helloworld_jar',  false);
>>>>> WARNING:  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>>>>> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
>>>>> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>>>>>
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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Hi Kris,

I am not sure.  But, I tried to move the files over to /usr/lib/pgsql
which should be accessible and tried again.
Still I am getting the same error.  I believe I am missing something
fundamental.
Thanks for the response, here are the new logs.

DEBUG:  00000: Getting Backend class pljava.jar
LOCATION:  initPLJavaClasses,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
 java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
 WARNING:  XX000: java.lang.NoClassDefFoundError:
org/postgresql/pljava/internal/Backend
 LOCATION:  elogExceptionMessage,
/home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
DEBUG:  00000: Destroying JavaVM...
LOCATION:  _destroyJavaVM,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
DEBUG:  00000: JavaVM destroyed
LOCATION:  _destroyJavaVM,
/home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
ERROR:  XX000: Unable to load class
org/postgresql/pljava/internal/Backend using CLASSPATH
'-Djava.class.path=/usr/lib/pgsql/pljava.jar'
LOCATION:  PgObject_getJavaClass,
/home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116




On Tue, Oct 21, 2008 at 12:47 PM, Kris Jurka <jurka@...> wrote:

> Is /root accessible by the user the postgresql server is running as?
>
> Nelli Vanan wrote:
>>
>> Sorry to be spamming your mailbox.  I am struggling to get this
>> resolved.  I am using  jdk1.5.0_11 so the zlib conflict might not be
>> the problem.
>>
>> On Tue, Oct 21, 2008 at 11:02 AM, Nelli Vanan <ambulimama@...>
>> wrote:
>>>
>>> Actually my classpath is set to /root/thanesh/pljava.jar and not
>>> /root/mydir/pljava.jar as in the first mail.
>>>
>>>
>>> On Tue, Oct 21, 2008 at 11:00 AM, Nelli Vanan <ambulimama@...>
>>> wrote:
>>>>
>>>> Here are the info I got in the server logs.
>>>>
>>>> LOCATION:  SetTransactionIdLimit, varsup.c:234
>>>> DEBUG:  00000: Not using integer_datetimes
>>>> LOCATION:  checkIntTimeType,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:538
>>>> DEBUG:  00000: Added JVM option string
>>>> "-Djava.class.path=/root/thanesh/pljava.jar"
>>>> LOCATION:  JVMOptList_add,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>> DEBUG:  00000: Added JVM option string
>>>> "-Dsqlj.defaultconnection=jdbc:default:connection"
>>>> LOCATION:  JVMOptList_add,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>> DEBUG:  00000: Added JVM option string "vfprintf"
>>>> LOCATION:  JVMOptList_add,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>> DEBUG:  00000: Added JVM option string "-Xrs"
>>>> LOCATION:  JVMOptList_add,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>> DEBUG:  00000: Creating JavaVM
>>>> LOCATION:  initializeJavaVM,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:640
>>>> DEBUG:  00000: JavaVM created
>>>> LOCATION:  initializeJavaVM,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:660
>>>> DEBUG:  00000: Getting Backend class pljava.jar
>>>> LOCATION:  initPLJavaClasses,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
>>>> java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>>>> WARNING:  XX000: java.lang.NoClassDefFoundError:
>>>> org/postgresql/pljava/internal/Backend
>>>> LOCATION:  elogExceptionMessage,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
>>>> DEBUG:  00000: Destroying JavaVM...
>>>> LOCATION:  _destroyJavaVM,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
>>>> c DEBUG:  00000: JavaVM destroyed
>>>> LOCATION:  _destroyJavaVM,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
>>>> ERROR:  XX000: Unable to load class
>>>> org/postgresql/pljava/internal/Backend using CLASSPATH
>>>> '-Djava.class.path=/root/thanesh/pljava.jar'
>>>>  LOCATION:  PgObject_getJavaClass,
>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116
>>>>
>>>>
>>>> On Tue, Oct 21, 2008 at 10:05 AM, Nelli Vanan <ambulimama@...>
>>>> wrote:
>>>>>
>>>>> Hi there,
>>>>>
>>>>> I have read through some of the mail threads, and noticed that people
>>>>> had the same problem before.  I am using postgres 8.1.11 and plJava
>>>>> 1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
>>>>> sure if I have the same problem that was mentioned in other threads(
>>>>> about zlib conflict).  Please let me know.  Thank you very much.
>>>>>
>>>>>
>>>>> On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...>
>>>>> wrote:
>>>>>>
>>>>>> Hi there,
>>>>>>
>>>>>> I am having some problem when trying to experiment with a hello world
>>>>>> example.  When I run the following command I am getting this error
>>>>>> message.
>>>>>> I am not sure what I am doing wrong.
>>>>>> The class path seems to be correct.  I have the pljava.jar file in
>>>>>> /root/mydir
>>>>>> How can I resolve this.  Thanks,
>>>>>>
>>>>>> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
>>>>>> 'helloworld_jar',  false);
>>>>>> WARNING:  java.lang.NoClassDefFoundError:
>>>>>> org/postgresql/pljava/internal/Backend
>>>>>> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
>>>>>> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>>>>>>
>> _______________________________________________
>> Pljava-dev mailing list
>> Pljava-dev@...
>> http://pgfoundry.org/mailman/listinfo/pljava-dev
>
>
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Re: Unable to load class org/postgresql/pljava/internal/Backend

by Nelli Vanan :: Rate this Message:

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My bad.  Sorry, your last hint solved the problem Kris.  Thanks a lot.
 When I was doing the last test, I did not have pljava.jar in
/usr/lib/pgsql.
Thanks a lot.



On Tue, Oct 21, 2008 at 1:01 PM, Nelli Vanan <ambulimama@...> wrote:

> Hi Kris,
>
> I am not sure.  But, I tried to move the files over to /usr/lib/pgsql
> which should be accessible and tried again.
> Still I am getting the same error.  I believe I am missing something
> fundamental.
> Thanks for the response, here are the new logs.
>
> DEBUG:  00000: Getting Backend class pljava.jar
> LOCATION:  initPLJavaClasses,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
>  java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>  WARNING:  XX000: java.lang.NoClassDefFoundError:
> org/postgresql/pljava/internal/Backend
>  LOCATION:  elogExceptionMessage,
> /home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
> DEBUG:  00000: Destroying JavaVM...
> LOCATION:  _destroyJavaVM,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
> DEBUG:  00000: JavaVM destroyed
> LOCATION:  _destroyJavaVM,
> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
> ERROR:  XX000: Unable to load class
> org/postgresql/pljava/internal/Backend using CLASSPATH
> '-Djava.class.path=/usr/lib/pgsql/pljava.jar'
> LOCATION:  PgObject_getJavaClass,
> /home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116
>
>
>
>
> On Tue, Oct 21, 2008 at 12:47 PM, Kris Jurka <jurka@...> wrote:
>> Is /root accessible by the user the postgresql server is running as?
>>
>> Nelli Vanan wrote:
>>>
>>> Sorry to be spamming your mailbox.  I am struggling to get this
>>> resolved.  I am using  jdk1.5.0_11 so the zlib conflict might not be
>>> the problem.
>>>
>>> On Tue, Oct 21, 2008 at 11:02 AM, Nelli Vanan <ambulimama@...>
>>> wrote:
>>>>
>>>> Actually my classpath is set to /root/thanesh/pljava.jar and not
>>>> /root/mydir/pljava.jar as in the first mail.
>>>>
>>>>
>>>> On Tue, Oct 21, 2008 at 11:00 AM, Nelli Vanan <ambulimama@...>
>>>> wrote:
>>>>>
>>>>> Here are the info I got in the server logs.
>>>>>
>>>>> LOCATION:  SetTransactionIdLimit, varsup.c:234
>>>>> DEBUG:  00000: Not using integer_datetimes
>>>>> LOCATION:  checkIntTimeType,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:538
>>>>> DEBUG:  00000: Added JVM option string
>>>>> "-Djava.class.path=/root/thanesh/pljava.jar"
>>>>> LOCATION:  JVMOptList_add,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>>> DEBUG:  00000: Added JVM option string
>>>>> "-Dsqlj.defaultconnection=jdbc:default:connection"
>>>>> LOCATION:  JVMOptList_add,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>>> DEBUG:  00000: Added JVM option string "vfprintf"
>>>>> LOCATION:  JVMOptList_add,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>>> DEBUG:  00000: Added JVM option string "-Xrs"
>>>>> LOCATION:  JVMOptList_add,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:436
>>>>> DEBUG:  00000: Creating JavaVM
>>>>> LOCATION:  initializeJavaVM,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:640
>>>>> DEBUG:  00000: JavaVM created
>>>>> LOCATION:  initializeJavaVM,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:660
>>>>> DEBUG:  00000: Getting Backend class pljava.jar
>>>>> LOCATION:  initPLJavaClasses,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:124
>>>>> java.lang.NoClassDefFoundError: org/postgresql/pljava/internal/Backend
>>>>> WARNING:  XX000: java.lang.NoClassDefFoundError:
>>>>> org/postgresql/pljava/internal/Backend
>>>>> LOCATION:  elogExceptionMessage,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/JNICalls.c:74
>>>>> DEBUG:  00000: Destroying JavaVM...
>>>>> LOCATION:  _destroyJavaVM,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:374
>>>>> c DEBUG:  00000: JavaVM destroyed
>>>>> LOCATION:  _destroyJavaVM,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/Backend.c:383
>>>>> ERROR:  XX000: Unable to load class
>>>>> org/postgresql/pljava/internal/Backend using CLASSPATH
>>>>> '-Djava.class.path=/root/thanesh/pljava.jar'
>>>>>  LOCATION:  PgObject_getJavaClass,
>>>>> /home/jurka/pg/pljava/pljava/src/C/pljava/PgObject.c:116
>>>>>
>>>>>
>>>>> On Tue, Oct 21, 2008 at 10:05 AM, Nelli Vanan <ambulimama@...>
>>>>> wrote:
>>>>>>
>>>>>> Hi there,
>>>>>>
>>>>>> I have read through some of the mail threads, and noticed that people
>>>>>> had the same problem before.  I am using postgres 8.1.11 and plJava
>>>>>> 1.4.0 and am running in a variant of CentOS.  e-smith server. I am not
>>>>>> sure if I have the same problem that was mentioned in other threads(
>>>>>> about zlib conflict).  Please let me know.  Thank you very much.
>>>>>>
>>>>>>
>>>>>> On Mon, Oct 20, 2008 at 4:19 PM, Nelli Vanan <ambulimama@...>
>>>>>> wrote:
>>>>>>>
>>>>>>> Hi there,
>>>>>>>
>>>>>>> I am having some problem when trying to experiment with a hello world
>>>>>>> example.  When I run the following command I am getting this error
>>>>>>> message.
>>>>>>> I am not sure what I am doing wrong.
>>>>>>> The class path seems to be correct.  I have the pljava.jar file in
>>>>>>> /root/mydir
>>>>>>> How can I resolve this.  Thanks,
>>>>>>>
>>>>>>> SELECT sqlj.install_jar('file:///root/mydir/hello.jar',
>>>>>>> 'helloworld_jar',  false);
>>>>>>> WARNING:  java.lang.NoClassDefFoundError:
>>>>>>> org/postgresql/pljava/internal/Backend
>>>>>>> ERROR:  Unable to load class org/postgresql/pljava/internal/Backend
>>>>>>> using CLASSPATH '-Djava.class.path=/root/mydir/pljava.jar'
>>>>>>>
>>> _______________________________________________
>>> Pljava-dev mailing list
>>> Pljava-dev@...
>>> http://pgfoundry.org/mailman/listinfo/pljava-dev
>>
>>
>
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