Error loading class "org.tanukisoftware.wrapper.WrapperSimpleApp"

[Khanh Dao]

When start concourse server from the console, I got this error:

[19:36:09]knd (develop) : ~/Code/concourse/concourse-server
$ ./scripts/concourse console
Running Concourse Server...
wrapper  | --> Wrapper Started as Console
wrapper  | Java Service Wrapper Community Edition 64-bit 3.5.24
wrapper  |   Copyright (C) 1999-2014 Tanuki Software, Ltd. All Rights Reserved.
wrapper  |     http://wrapper.tanukisoftware.com
wrapper  |
wrapper  | Launching a JVM...
jvm 1    | Error: Could not find or load main class org.tanukisoftware.wrapper.WrapperSimpleApp
wrapper  | JVM exited while loading the application.
wrapper  | Launching a JVM...
jvm 2    | Error: Could not find or load main class org.tanukisoftware.wrapper.WrapperSimpleApp
wrapper  | JVM exited while loading the application.
wrapper  | Launching a JVM...
jvm 3    | Error: Could not find or load main class org.tanukisoftware.wrapper.WrapperSimpleApp
wrapper  | JVM exited while loading the application.
wrapper  | Launching a JVM...
jvm 4    | Error: Could not find or load main class org.tanukisoftware.wrapper.WrapperSimpleApp
wrapper  | JVM exited while loading the application.
wrapper  | Launching a JVM...
jvm 5    | Error: Could not find or load main class org.tanukisoftware.wrapper.WrapperSimpleApp
wrapper  | JVM exited while loading the application.
wrapper  | There were 5 failed launches in a row, each lasting less than 300 seconds.  Giving up.
wrapper  |   There may be a configuration problem: please check the logs.
wrapper  | <-- Wrapper Stopped

My current suspect is in /conf/.concourse.conf, which sets: 

wrapper.java.command=/usr/bin/java

However, I check with that java version, it is 1.7

$  /usr/bin/java -version

java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

I'm not why I couldn't load the loader. Any tips please? Thanks.

[Jeff Nelson]

Great question. The issue you're seeing is happening because you're running the script from source and it doesn't have the class paths correctly configured. 

If you want to start Concourse from the command line, you'll need to build it first (from the root of the concourse repo):

$ pwd

/Dropbox/Cinchapi/code/java/concourse

$ ./gradlew clean build installer

After that finishes, you'll have a .bin file in the concourse-server/build/distributions directory

$ ls concourse-server/build/distributions | egrep bin

concourse-server-0.4.0.88-SNAPSHOT.bin

Then you can install the concourse-server by executing the bin file

$ cd concourse-server/build/distributions/

$ sh concourse-server-0.4.0.88-SNAPSHOT.bin 

Creating directory concourse-server

Verifying archive integrity... All good.

Uncompressing Concourse Server..............................................................................

Please type your administrative password to allow the installer to make some (optional) system-wide changes.

Password:

[WARN] The installer was unable to place the Concourse scripts on your PATH, but you can run them directly from /Dropbox/Cinchapi/code/java/concourse/concourse-server/build/distributions/concourse-server/bin.

Then you can go to the concourse-server/bin directory and start the server

$ cd concourse-server/bin/

$ ./concourse console

Running Concourse Server...

wrapper  | --> Wrapper Started as Console

wrapper  | Java Service Wrapper Community Edition 64-bit 3.5.24

wrapper  |   Copyright (C) 1999-2014 Tanuki Software, Ltd. All Rights Reserved.

wrapper  |     http://wrapper.tanukisoftware.com

wrapper  | 

wrapper  | Launching a JVM...

jvm 1    | WrapperManager: Initializing...

jvm 1    |  _____

jvm 1    | /  __ \

jvm 1    | | /  \/ ___  _ __   ___ ___  _   _ _ __ ___  ___

jvm 1    | | |    / _ \| '_ \ / __/ _ \| | | | '__/ __|/ _ \

jvm 1    | | \__/\ (_) | | | | (_| (_) | |_| | |  \__ \  __/

jvm 1    |  \____/\___/|_| |_|\___\___/ \__,_|_|  |___/\___|

jvm 1    | 

jvm 1    | Copyright (c) 2013-2014, Cinchapi Software Collective, LLC. All Rights Reserved.

jvm 1    | The Concourse server has started

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[Khanh Dao]

Thanks Jeff for the clear explanation.