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Reports 11gR2 and 12c on AIX Fail With REP-50125: An internal exception occurred: unexpected block data (Doc ID 2107158.1)

Last updated on JULY 27, 2018

Applies to:

Oracle Reports Developer - Version and later
IBM AIX on POWER Systems (64-bit)


A new install of Reports 12c on AIX fails with the following error trying to execute any web command (getserverinfo/showjobs, etc)

REP-50125: An internal exception occurred: unexpected block data.

Using to run a report shows the following errors server=[reports server name] report=[report] destype=file desname=/tmp/test.pdf desformat=pdf authid=user/password
REP-0177: An error occurred while running in a remote server.
An internal exception occurred: unexpected block data.

Reports server is up and running and can be confirmed via " -findAll" and work fine without issue.


Same behavior has been found when using jdk7u95-b13 for WLS in 11gR2 (

java version "1.7.0"
Java(TM) SE Runtime Environment (build pap6470_27sr3fp30-20160112_01(SR3 FP30))
IBM J9 VM (build 2.7, JRE 1.7.0 AIX ppc64-64 Compressed References
20151222_283006 (JIT enabled, AOT enabled)
J9VM - R27_Java727_SR3_20151222_1037_B283006
GC - R27_Java727_SR3_20151222_1037_B283006_CMPRSS
J9CL - 20151222_283006)
JCL - 20160112_01 based on Oracle jdk7u95-b13



 New installation


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