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Posted to log4j-user@logging.apache.org by David KOCH <dk...@ezakus.com> on 2014/10/31 00:47:57 UTC
Exception when using Syslog appender with RFC5424 layout
Hello,
Log4j2 version is 2.0.2, my Syslog appender is configured like so:
<Syslog name="LogStash" format="RFC5424" host="192.168.232.191"
port="5000" protocol="UDP"/>
and I get the following exception:
2014-10-31 00:36:40,916 DEBUG Calling createAppender on class
org.apache.logging.log4j.core.appender.SyslogAppender for element Syslog
with params(host="192.168.232.191", port="5000", protocol="UDP", null,
reconnectionDelay="0", immediateFail="true", name="LogStash",
immediateFlush="true", ignoreExceptions="true", facility="LOCAL0",
id="bidder", enterpriseNumber="18060", includeMdc="true", mdcId="null",
mdcPrefix="null", eventPrefix="null", newLine="false",
newLineEscape="null", appName="null", messageId="audit",
mdcExcludes="null", mdcIncludes="null", mdcRequired="null",
format="RFC5424", null,
Configuration(/Users/xxxx/Work/xxxxx/scripts/log4j2.xml), charset="UTF-8",
exceptionPattern="null", ={}, advertise="false")
2014-10-31 00:36:41,018 DEBUG Generated plugins in 0.099533 seconds,
packages: [org.apache.logging.log4j.core], preload: false.
2014-10-31 00:36:41,019 ERROR catching
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:133)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:744)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:683)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:675)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:349)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:150)
at
org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:364)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:422)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:146)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:269)
at
org.apache.logging.slf4j.Log4jLoggerFactory$PrivateManager.getContext(Log4jLoggerFactory.java:98)
at
org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:84)
at
org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:44)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:277)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:288)
at
com.google.openbidder.server.ServiceWrapper.<clinit>(ServiceWrapper.java:62)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.IllegalArgumentException: No structured id name was
supplied
at
org.apache.logging.log4j.message.StructuredDataId.<init>(StructuredDataId.java:92)
at
org.apache.logging.log4j.core.layout.Rfc5424Layout.<init>(Rfc5424Layout.java:135)
at
org.apache.logging.log4j.core.layout.Rfc5424Layout.createLayout(Rfc5424Layout.java:651)
at
org.apache.logging.log4j.core.appender.SyslogAppender.createAppender(SyslogAppender.java:130)
... 28 more
I don't get the same exception when I don't specify the format. What could
be wrong?
Thank you,
/David
Re: Exception when using Syslog appender with RFC5424 layout
Posted by Gary Gregory <ga...@gmail.com>.
On Tue, Jan 13, 2015 at 10:41 AM, David KOCH <dk...@ezakus.com> wrote:
> Hi,
>
> It's been a while but I think the resolution was that one needs to provide
> the mdcId attribute in the Syslog appender configuration when using the
> RFC5424 layout. It's not documented but evident when looking in the source.
> Not sure this behaviour changed in log4j2 2.1.
>
Ah right, that rings a bell. I must have deleted that part of the thread.
Thank you for the reminder.
Gary
> Regards,
>
> /David
>
> On 13 January 2015 at 16:32, Gary Gregory <ga...@gmail.com> wrote:
>
> > Can you please try to see if you get the same result with 2.1?
> >
> > Thank you,
> > Gary
> >
> > On Thu, Oct 30, 2014 at 7:47 PM, David KOCH <dk...@ezakus.com> wrote:
> >
> > > Hello,
> > >
> > > Log4j2 version is 2.0.2, my Syslog appender is configured like so:
> > >
> > > <Syslog name="LogStash" format="RFC5424" host="192.168.232.191"
> > > port="5000" protocol="UDP"/>
> > >
> > > and I get the following exception:
> > >
> > > 2014-10-31 00:36:40,916 DEBUG Calling createAppender on class
> > > org.apache.logging.log4j.core.appender.SyslogAppender for element
> Syslog
> > > with params(host="192.168.232.191", port="5000", protocol="UDP", null,
> > > reconnectionDelay="0", immediateFail="true", name="LogStash",
> > > immediateFlush="true", ignoreExceptions="true", facility="LOCAL0",
> > > id="bidder", enterpriseNumber="18060", includeMdc="true", mdcId="null",
> > > mdcPrefix="null", eventPrefix="null", newLine="false",
> > > newLineEscape="null", appName="null", messageId="audit",
> > > mdcExcludes="null", mdcIncludes="null", mdcRequired="null",
> > > format="RFC5424", null,
> > > Configuration(/Users/xxxx/Work/xxxxx/scripts/log4j2.xml),
> > charset="UTF-8",
> > > exceptionPattern="null", ={}, advertise="false")
> > > 2014-10-31 00:36:41,018 DEBUG Generated plugins in 0.099533 seconds,
> > > packages: [org.apache.logging.log4j.core], preload: false.
> > > 2014-10-31 00:36:41,019 ERROR catching
> > > java.lang.reflect.InvocationTargetException
> > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > at
> > >
> > >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > > at
> > >
> > >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > > at java.lang.reflect.Method.invoke(Method.java:606)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:133)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:744)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:683)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:675)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:349)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:150)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:364)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:422)
> > > at
> > >
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:146)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
> > > at org.apache.logging.log4j.LogManager.getContext(LogManager.java:269)
> > > at
> > >
> > >
> >
> org.apache.logging.slf4j.Log4jLoggerFactory$PrivateManager.getContext(Log4jLoggerFactory.java:98)
> > > at
> > >
> > >
> >
> org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:84)
> > > at
> > >
> > >
> >
> org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:44)
> > > at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:277)
> > > at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:288)
> > > at
> > >
> > >
> >
> com.google.openbidder.server.ServiceWrapper.<clinit>(ServiceWrapper.java:62)
> > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > at
> > >
> > >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > > at
> > >
> > >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > > at java.lang.reflect.Method.invoke(Method.java:606)
> > > at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
> > > at java.lang.Thread.run(Thread.java:724)
> > > Caused by: java.lang.IllegalArgumentException: No structured id name
> was
> > > supplied
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.message.StructuredDataId.<init>(StructuredDataId.java:92)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.layout.Rfc5424Layout.<init>(Rfc5424Layout.java:135)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.layout.Rfc5424Layout.createLayout(Rfc5424Layout.java:651)
> > > at
> > >
> > >
> >
> org.apache.logging.log4j.core.appender.SyslogAppender.createAppender(SyslogAppender.java:130)
> > > ... 28 more
> > >
> > > I don't get the same exception when I don't specify the format. What
> > could
> > > be wrong?
> > >
> > > Thank you,
> > >
> > > /David
> > >
> >
> >
> >
> > --
> > E-Mail: garydgregory@gmail.com | ggregory@apache.org
> > Java Persistence with Hibernate, Second Edition
> > <http://www.manning.com/bauer3/>
> > JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > Spring Batch in Action <http://www.manning.com/templier/>
> > Blog: http://garygregory.wordpress.com
> > Home: http://garygregory.com/
> > Tweet! http://twitter.com/GaryGregory
> >
>
--
E-Mail: garydgregory@gmail.com | ggregory@apache.org
Java Persistence with Hibernate, Second Edition
<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
Tweet! http://twitter.com/GaryGregory
Re: Exception when using Syslog appender with RFC5424 layout
Posted by David KOCH <dk...@ezakus.com>.
Hi,
It's been a while but I think the resolution was that one needs to provide
the mdcId attribute in the Syslog appender configuration when using the
RFC5424 layout. It's not documented but evident when looking in the source.
Not sure this behaviour changed in log4j2 2.1.
Regards,
/David
On 13 January 2015 at 16:32, Gary Gregory <ga...@gmail.com> wrote:
> Can you please try to see if you get the same result with 2.1?
>
> Thank you,
> Gary
>
> On Thu, Oct 30, 2014 at 7:47 PM, David KOCH <dk...@ezakus.com> wrote:
>
> > Hello,
> >
> > Log4j2 version is 2.0.2, my Syslog appender is configured like so:
> >
> > <Syslog name="LogStash" format="RFC5424" host="192.168.232.191"
> > port="5000" protocol="UDP"/>
> >
> > and I get the following exception:
> >
> > 2014-10-31 00:36:40,916 DEBUG Calling createAppender on class
> > org.apache.logging.log4j.core.appender.SyslogAppender for element Syslog
> > with params(host="192.168.232.191", port="5000", protocol="UDP", null,
> > reconnectionDelay="0", immediateFail="true", name="LogStash",
> > immediateFlush="true", ignoreExceptions="true", facility="LOCAL0",
> > id="bidder", enterpriseNumber="18060", includeMdc="true", mdcId="null",
> > mdcPrefix="null", eventPrefix="null", newLine="false",
> > newLineEscape="null", appName="null", messageId="audit",
> > mdcExcludes="null", mdcIncludes="null", mdcRequired="null",
> > format="RFC5424", null,
> > Configuration(/Users/xxxx/Work/xxxxx/scripts/log4j2.xml),
> charset="UTF-8",
> > exceptionPattern="null", ={}, advertise="false")
> > 2014-10-31 00:36:41,018 DEBUG Generated plugins in 0.099533 seconds,
> > packages: [org.apache.logging.log4j.core], preload: false.
> > 2014-10-31 00:36:41,019 ERROR catching
> > java.lang.reflect.InvocationTargetException
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > at
> >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > at java.lang.reflect.Method.invoke(Method.java:606)
> > at
> >
> >
> org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:133)
> > at
> >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:744)
> > at
> >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:683)
> > at
> >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:675)
> > at
> >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:349)
> > at
> >
> >
> org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:150)
> > at
> >
> >
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:364)
> > at
> >
> >
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:422)
> > at
> > org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:146)
> > at
> >
> >
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
> > at
> >
> >
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
> > at org.apache.logging.log4j.LogManager.getContext(LogManager.java:269)
> > at
> >
> >
> org.apache.logging.slf4j.Log4jLoggerFactory$PrivateManager.getContext(Log4jLoggerFactory.java:98)
> > at
> >
> >
> org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:84)
> > at
> >
> >
> org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:44)
> > at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:277)
> > at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:288)
> > at
> >
> >
> com.google.openbidder.server.ServiceWrapper.<clinit>(ServiceWrapper.java:62)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > at
> >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > at java.lang.reflect.Method.invoke(Method.java:606)
> > at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
> > at java.lang.Thread.run(Thread.java:724)
> > Caused by: java.lang.IllegalArgumentException: No structured id name was
> > supplied
> > at
> >
> >
> org.apache.logging.log4j.message.StructuredDataId.<init>(StructuredDataId.java:92)
> > at
> >
> >
> org.apache.logging.log4j.core.layout.Rfc5424Layout.<init>(Rfc5424Layout.java:135)
> > at
> >
> >
> org.apache.logging.log4j.core.layout.Rfc5424Layout.createLayout(Rfc5424Layout.java:651)
> > at
> >
> >
> org.apache.logging.log4j.core.appender.SyslogAppender.createAppender(SyslogAppender.java:130)
> > ... 28 more
> >
> > I don't get the same exception when I don't specify the format. What
> could
> > be wrong?
> >
> > Thank you,
> >
> > /David
> >
>
>
>
> --
> E-Mail: garydgregory@gmail.com | ggregory@apache.org
> Java Persistence with Hibernate, Second Edition
> <http://www.manning.com/bauer3/>
> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> Spring Batch in Action <http://www.manning.com/templier/>
> Blog: http://garygregory.wordpress.com
> Home: http://garygregory.com/
> Tweet! http://twitter.com/GaryGregory
>
Re: Exception when using Syslog appender with RFC5424 layout
Posted by Gary Gregory <ga...@gmail.com>.
Can you please try to see if you get the same result with 2.1?
Thank you,
Gary
On Thu, Oct 30, 2014 at 7:47 PM, David KOCH <dk...@ezakus.com> wrote:
> Hello,
>
> Log4j2 version is 2.0.2, my Syslog appender is configured like so:
>
> <Syslog name="LogStash" format="RFC5424" host="192.168.232.191"
> port="5000" protocol="UDP"/>
>
> and I get the following exception:
>
> 2014-10-31 00:36:40,916 DEBUG Calling createAppender on class
> org.apache.logging.log4j.core.appender.SyslogAppender for element Syslog
> with params(host="192.168.232.191", port="5000", protocol="UDP", null,
> reconnectionDelay="0", immediateFail="true", name="LogStash",
> immediateFlush="true", ignoreExceptions="true", facility="LOCAL0",
> id="bidder", enterpriseNumber="18060", includeMdc="true", mdcId="null",
> mdcPrefix="null", eventPrefix="null", newLine="false",
> newLineEscape="null", appName="null", messageId="audit",
> mdcExcludes="null", mdcIncludes="null", mdcRequired="null",
> format="RFC5424", null,
> Configuration(/Users/xxxx/Work/xxxxx/scripts/log4j2.xml), charset="UTF-8",
> exceptionPattern="null", ={}, advertise="false")
> 2014-10-31 00:36:41,018 DEBUG Generated plugins in 0.099533 seconds,
> packages: [org.apache.logging.log4j.core], preload: false.
> 2014-10-31 00:36:41,019 ERROR catching
> java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
>
> org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:133)
> at
>
> org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:744)
> at
>
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:683)
> at
>
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:675)
> at
>
> org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:349)
> at
>
> org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:150)
> at
>
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:364)
> at
>
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:422)
> at
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:146)
> at
>
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
> at
>
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
> at org.apache.logging.log4j.LogManager.getContext(LogManager.java:269)
> at
>
> org.apache.logging.slf4j.Log4jLoggerFactory$PrivateManager.getContext(Log4jLoggerFactory.java:98)
> at
>
> org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:84)
> at
>
> org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:44)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:277)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:288)
> at
>
> com.google.openbidder.server.ServiceWrapper.<clinit>(ServiceWrapper.java:62)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
> at java.lang.Thread.run(Thread.java:724)
> Caused by: java.lang.IllegalArgumentException: No structured id name was
> supplied
> at
>
> org.apache.logging.log4j.message.StructuredDataId.<init>(StructuredDataId.java:92)
> at
>
> org.apache.logging.log4j.core.layout.Rfc5424Layout.<init>(Rfc5424Layout.java:135)
> at
>
> org.apache.logging.log4j.core.layout.Rfc5424Layout.createLayout(Rfc5424Layout.java:651)
> at
>
> org.apache.logging.log4j.core.appender.SyslogAppender.createAppender(SyslogAppender.java:130)
> ... 28 more
>
> I don't get the same exception when I don't specify the format. What could
> be wrong?
>
> Thank you,
>
> /David
>
--
E-Mail: garydgregory@gmail.com | ggregory@apache.org
Java Persistence with Hibernate, Second Edition
<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
Tweet! http://twitter.com/GaryGregory