Re: [Wrapper-user] FW: Advice on configuring the Java Service Wrapper for I/O heavy application

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Hello Trever,

A java.lang.ClassNotFoundException means that the JVM didn't find the
wrapper.jar file on the class path.
could you please verify that the jar file is added correctly to the class
path?
>From your first mail, I can see that you have the following setting:
wrapper.java.classpath.2=../lib/wrapper.jar

Furthermore, you need to add your jar file also to the classpath:
wrapper.java.classpath.3=./CenturaDataCollectionProgram.jar

Lastly, the name of your main class is commented out:
#wrapper.app.parameter.1=CenturaDataCollectionProgram.Program

If that's the correct name of your main class, please remove the comments.

Hope this information helps you out.

Cheers,

Christian

On Fri, Apr 20, 2012 at 1:45 AM, Hickey, Trever (INTERN) <
Tre...@si...> wrote:

> **
> Hello again,
>
> I tried your solution about removing the line, and instead I got this
> error,
>
> STATUS | wrapper  | 2012/04/19 09:41:19 | Launching a JVM...
> INFO   | jvm 5    | 2012/04/19 09:41:19 | java.lang.NoClassDefFoundError:
> org/tanukisoftware/wrapper/test/WrapperSimpleApp
> INFO   | jvm 5    | 2012/04/19 09:41:19 | Caused by:
> java.lang.ClassNotFoundException:
> org.tanukisoftware.wrapper.test.WrapperSimpleApp
> INFO   | jvm 5    | 2012/04/19 09:41:19 |  at
> java.net.URLClassLoader$1.run(Unknown Source)
> INFO   | jvm 5    | 2012/04/19 09:41:19 |  at
> java.security.AccessController.doPrivileged(Native Method)
> INFO   | jvm 5    | 2012/04/19 09:41:19 |  at
> java.net.URLClassLoader.findClass(Unknown Source)
> INFO   | jvm 5    | 2012/04/19 09:41:19 |  at
> java.lang.ClassLoader.loadClass(Unknown Source)
> INFO   | jvm 5    | 2012/04/19 09:41:19 |  at
> sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> INFO   | jvm 5    | 2012/04/19 09:41:19 |  at
> java.lang.ClassLoader.loadClass(Unknown Source)
> INFO   | jvm 5    | 2012/04/19 09:41:19 | Could not find the main class:
> org.tanukisoftware.wrapper.test.WrapperSimpleApp.  Program will exit.
> ERROR  | wrapper  | 2012/04/19 09:41:19 | JVM exited while loading the
> application.
> FATAL  | wrapper  | 2012/04/19 09:41:19 | There were 5 failed launches in
> a row, each lasting less than 300 seconds.  Giving up.
> FATAL  | wrapper  | 2012/04/19 09:41:19 |   There may be a configuration
> problem: please check the logs.
> STATUS | wrapper  | 2012/04/19 09:41:19 | <-- Wrapper Stopped
>  Now it seems like the program is not recognizing my program at all. My
> program is stored in an executable JAR file, so wouldn't I need this line wrapper.java.additional.2=
> -jar "./CenturaDataCollectionProgram.jar" to execute my program?
>
> Sincerely,
>
> Trever Hickey
>
>  ------------------------------
> *From:* Christian Mueller [mailto:chr...@ta...]
> *Sent:* Thursday, April 12, 2012 1:42 AM
> *To:* wra...@li...
> *Subject:* Re: [Wrapper-user] FW: Advice on configuring the Java Service
> Wrapper for I/O heavy application
>
>  Hello Trever,
>
> thank you for your mail.
>
> The reason, your JVM stops after 30 seconds is basically because of a
> small misconfiguration.
>
> Please get rid of the following line in your conf file:
> wrapper.java.additional.2= -jar "./CenturaDataCollectionProgram.jar"
>
> Actually, with this line you kind of intercept the logic of how the JVM
> will interpret the command line....
>
>
> Hope this helps you out.
>
> Best Regards,
> Christian
>
> On Thu, Apr 12, 2012 at 4:27 AM, Hickey, Trever (INTERN) <
> Tre...@si...> wrote:
>
>>  Hi,
>>
>> This is my first time trying to post here, so here it goes.
>>
>> I am trying to turn my Java Application into a Windows service using
>> Simple Server App class.
>>
>> I am using
>>
>> Java Service Wrapper Community Edition 32-bit 3.5.14
>>   Copyright (C) 1999-2011 Tanuki Software, Ltd. All Rights Reserved.
>>     *http://wrapper.tanukisoftware.com*<http://wrapper.tanukisoftware.com>
>>
>> on Windows XP SP 3.
>>
>> I have also included my log file and conf file.
>>
>> The errors I think it most likely relates to are
>> ERROR  | wrapper  | 2012/04/11 11:37:40 | Startup failed: Timed out
>> waiting for a signal from the JVM.
>> ADVICE | wrapper  | 2012/04/11 11:37:40 |
>> ADVICE | wrapper  | 2012/04/11 11:37:40 |
>> ------------------------------------------------------------------------
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | Advice:
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | The Wrapper consists of a
>> native component as well as a set of classes
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | which run within the JVM that
>> it launches.  The Java component of the
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | Wrapper must be initialized
>> promptly after the JVM is launched or the
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | Wrapper will timeout, as just
>> happened.  Most likely the main class
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | specified in the Wrapper
>> configuration file is not correctly initializing
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | the Wrapper classes:
>> ADVICE | wrapper  | 2012/04/11 11:37:40 |
>> org.tanukisoftware.wrapper.test.WrapperSimpleApp
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | While it is possible to do so
>> manually, the Wrapper ships with helper
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | classes to make this
>> initialization processes automatic.
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | Please review the integration
>> section of the Wrapper's documentation
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | for the various methods which
>> can be employed to launch an application
>> ADVICE | wrapper  | 2012/04/11 11:37:40 | within the Wrapper:
>> ADVICE | wrapper  | 2012/04/11 11:37:40 |     *
>> http://wrapper.tanukisoftware.com/doc/english/integrate.html*<http://wrapper.tanukisoftware.com/doc/english/integrate.html>
>> ADVICE | wrapper  | 2012/04/11 11:37:40 |
>> ------------------------------------------------------------------------
>> ADVICE | wrapper  | 2012/04/11 11:37:40 |
>>
>> So far it looks like my application starts correctly, but terminates
>> after about 30 seconds when it then opens a new JVM and repeats for 4 more
>> times.
>>
>> I believe this might be one of two issues. One my application stays
>> constantly within my main method and doesn't exit out. I think there are a
>> couple of parameters that can be set to handle this, but I haven't had much
>> luck.
>>
>> Second idea is my application is very I/O heavy. My program is constantly
>> collecting data from a tool [using a special communication protocol] and
>> writing it to a log file. Could the JVM be timing out because of the heavy
>> I/O and if so, is their a way around this so my program can still be a
>> Windows Service?
>>
>> If anyone has any advice for handling this type of error I would
>> appreciate it.
>>
>> Thank you,
>>
>> Trever
>>
>>
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>
>
> This communication and any files or attachments transmitted with it may
> contain information that is copyrighted or confidential and exempt from
> disclosure under applicable law. It is intended solely for the use of the
> individual or the entity to which it is addressed.
> If you are not the intended recipient, you are hereby notified that any
> use, dissemination, or copying of this communication is strictly prohibited.
> If you have received this communication in error, please notify us at once
> so that we may take the appropriate action and avoid troubling you further.
>
> Thank you for your cooperation. Please contact your local IT staff or
> email in...@si... you need assistance.
>
>
> ------------------------------------------------------------------------------
> For Developers, A Lot Can Happen In A Second.
> Boundary is the first to Know...and Tell You.
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