[Building Sakai] multi threaded maven builds causing random compilation errors

Wed Jan 30 11:41:34 PST 2013

Not that I'm aware of. The other thing is that, unfortunately, Macs are typically a little behind when it comes to getting Java upgrades, so the issue may already be "fixed" for everyone else who is not as behind as we are.

Also, I'm just using the OS X stock version of Maven 3:

Apache Maven 3.0.3 (r1075438; 2011-02-28 12:31:09-0500)
Maven home: /usr/share/maven
Java version: 1.6.0_37, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x", version: "10.8.2", arch: "x86_64", family: "mac"

--
David Poindexter
Systems Analyst
Enterprise Student Systems
UITS
Indiana University
535 West Michigan Street
Indianapolis, IN 46202-5157
O: 317.274.8686
W: http://uits.iu.edu<http://uits.iu.edu/>

From: Steve Swinsburg <steve.swinsburg at gmail.com<mailto:steve.swinsburg at gmail.com>>
Date: Wednesday, January 30, 2013 1:31 PM
To: David Poindexter <davpoind at iupui.edu<mailto:davpoind at iupui.edu>>
Cc: Sam Ottenhoff <ottenhoff at longsight.com<mailto:ottenhoff at longsight.com>>, Sakai Dev <sakai-dev at collab.sakaiproject.org<mailto:sakai-dev at collab.sakaiproject.org>>
Subject: Re: [Building Sakai] multi threaded maven builds causing random compilation errors

David that is precisely what I am getting, also on an i7, though an iMac. Glad I'm not alone, though it sucks.

Do you know if this has been reported to Maven?

@Sam, ok, good to know, still might be the JVM, perhaps the CPU.

cheers,
Steve

On 31/01/2013, at 2:13 AM, "Poindexter, David Ray" <davpoind at iupui.edu<mailto:davpoind at iupui.edu>> wrote:

I have not been able to get multithreading working using this on an i7 MacBook Pro:

java version "1.6.0_37"
Java(TM) SE Runtime Environment (build 1.6.0_37-b06-434-11M3909)
Java HotSpot(TM) 64-Bit Server VM (build 20.12-b01-434, mixed mode)

Whether I do –T 2C or –T 4, I always get errors. Here's the most recent, using –T 4 for a recent pull off the sakai 2.9.x trunk:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project sakai-site-manage-group-helper: Compilation failure: Compilation failure:
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupListProducer.java:[93,76] ')' expected
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupListProducer.java:[93,126] ')' expected
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupListProducer.java:[93,100] not a statement
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupListProducer.java:[93,128] not a statement
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupListProducer.java:[93,132] ';' expected
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupEditProducer.java:[157,10] not a statement
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupEditProducer.java:[157,13] ';' expected
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupEditProducer.java:[162,10] 'catch' without 'try'
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupEditProducer.java:[162,26] ')' expected
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupEditProducer.java:[162,16] not a statement
[ERROR] /opt/sakai-2.9.x-src/site-manage/site-manage-group-helper/tool/src/java/org/sakaiproject/site/tool/helper/managegroup/rsf/GroupEditProducer.java:[162,28] ';' expected
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project sakai-site-manage-group-helper: Compilation failure
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleThreadedBuilder$1.call(LifecycleThreadedBuilder.java:167)
at org.apache.maven.lifecycle.internal.LifecycleThreadedBuilder$1.call(LifecycleThreadedBuilder.java:164)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: org.apache.maven.plugin.CompilationFailureException: Compilation failure
at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:656)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
... 13 more

--
David Poindexter
Systems Analyst
Enterprise Student Systems
UITS
Indiana University
535 West Michigan Street
Indianapolis, IN 46202-5157
O: 317.274.8686
W: http://uits.iu.edu<http://uits.iu.edu/>

From: Sam Ottenhoff <ottenhoff at longsight.com<mailto:ottenhoff at longsight.com>>
Date: Wednesday, January 30, 2013 9:28 AM
To: Steve Swinsburg <steve.swinsburg at gmail.com<mailto:steve.swinsburg at gmail.com>>
Cc: Sakai Dev <sakai-dev at collab.sakaiproject.org<mailto:sakai-dev at collab.sakaiproject.org>>
Subject: Re: [Building Sakai] multi threaded maven builds causing random compilation errors

Yeah, multi-threaded mode works well for me.  I use -T 4 , JDK 1.6.0_35 on Windows x64, skipping Maven tests.  Total build time is 4 mins for sakai-trunk-all (no adobeconnect).

--Sam

On Wed, Jan 30, 2013 at 8:14 AM, Steve Swinsburg <steve.swinsburg at gmail.com<mailto:steve.swinsburg at gmail.com>> wrote:
Hi all,

Does anyone else run Maven 3 in multi threaded mode?

I thought I should do something with the abundance of cores on this machine so setup my build to run in multi threaded mode, but I now randomly get class compilation errors or actual JVM compiler errors. There is actually nothing wrong with the class. And its always a different file and the file compiles perfectly fine without the multithreaded build turned on. And sometimes it compiles just fine *with* it turned on!

Example:

All run on the adobeconnect project, all taken as the last line of the error:

mvn -T 1C clean install
...
[ERROR] /Users/steve/dev/sakai/src/extra/adobeconnect/openmeetings/src/java/org/sakaiproject/videoconference/openmeetings/service/axis/services/AddRoomWithModerationAndQuestions.java:[700,44] class, interface, or enum expected

mvn -T 1C clean install
...
[ERROR] /Users/steve/dev/sakai/src/extra/adobeconnect/openmeetings/src/java/org/sakaiproject/videoconference/openmeetings/service/axis/services/CloseRoom.java:[471,110] package org.java.l.axis2.databinding.utils does not exist

Then a build as single threaded:

mvn clean install

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.337s
[INFO] Finished at: Thu Jan 31 00:11:27 EST 2013
[INFO] Final Memory: 19M/2177M
[INFO] ------------------------------------------------------------------------

Then a JVM compiler error:

mvn -T 1C clean install
...
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project adobeconnect-tool: Compilation failure
[ERROR] Failure executing javac, but could not parse the error:
[ERROR] An exception has occurred in the compiler (1.6.0_37). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport)  after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report.  Thank you.
[ERROR] com.sun.tools.javac.code.Symbol$CompletionFailure: class file for java.lang.annotation.RetentionPolicy not found

I wonder if its the JDK version?

cheers,
Steve

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