[syslog-ng] Not able to compile syslog-ng OSE with Java support

[Ho, Ming]

Hello,

I am able to compile syslog-ng 3.7.2 without the Java-based modules included successfully and the syslog-ng run fine. Now I need to re-compile again with the Java-based modules included. I execute the following steps listed in the syslog-ng-3.7-ose-admin guide:

Installed openjdk version "1.8.0_71"
Installed gradle version 2.11
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH
export LD_LIBRARY_PATH=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.71-1.b15.el6_7.x86_64/jre/lib/amd64/server:$LD_LIBRARY_PATH

When I run ./configure, I notice the java module option is set to "no" in the summary:
 Modules:
  Module search path          : ${exec_prefix}/lib/syslog-ng
  Sun STREAMS support (module): no
  SQL support (module)        : no
  PACCT module (EXPERIMENTAL) : no
  MongoDB destination (module): yes
  JSON support (module)       : no
  SMTP support (module)       : no
  AMQP destination (module)   : yes
  STOMP destination (module)  : yes
  GEOIP support (module)      : no
  Redis support (module)      : no
  Riemann destination (module): no
  python                      : yes (pkg-config package: python)
  java                        : no

I go ahead to execute "make" and "make install" without error. But I don't see the "java-modules" directory is created in /usr/local/lib/syslog-ng directory.
When I include the following declaration in my syslog-ng.conf to start syslog-ng, I got the following error:
[2016-02-20T05:46:59.039466] Plugin module not found in 'module-path'; module-path='/usr/local/lib/syslog-ng', module='mod-java'

Why Java modules is not included? What steps am I missing?
Any help is appreciated

Ming

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