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Posted to users@maven.apache.org by Laird Nelson <lj...@gmail.com> on 2012/07/20 22:43:38 UTC
Maven and parallel execution: fundamentally borked, right?
I have never gotten the -T option to Maven to work.
On a simple jar project that gets scheduled, periodically the compiler will
say things like this:
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:2.4:compile
(default-compile) on project com-foobar-api: Compilation failure:
Compilation failure:
[ERROR]
/Users/ljnelson/Projects/foobar/com-foobar-api/src/main/java/com/foobar/api/FrobnicationManager.java:[1,0]
class, interface, or enum expected
[ERROR]
/Users/ljnelson/Projects/foobar/com-foobar-api/src/main/java/com/foobar/api/FrobnicationManager.java:[5,0]
class, interface, or enum expected
[ERROR] -> [Help 1]
...even though in serial mode this class compiles fine (and indeed is
syntactically valid).
In other cases it will complain about how it cannot load, e.g.,
java.util.LinkedHashMap, even though--again--in serial mode this class is
loaded just fine.
I am using Maven 3.0.3 on a Mac with four cores with -T 2 as my parallel
option in a large multi-module project.
I assume that the parallel feature of Maven is in a pre-alpha state? Just
trying to see what the status is.
Best,
Laird
--
http://about.me/lairdnelson
Re: Maven and parallel execution: fundamentally borked, right?
Posted by Laird Nelson <lj...@gmail.com>.
On Fri, Jul 20, 2012 at 2:54 PM, Olivier Lamy <ol...@apache.org> wrote:
> What is your os/jdk ?
>
OSX 10.6.8/JDK 1.6.0_33
Forking the compiler did the trick, but I'd rather not if I can.
Best,
Laird
--
http://about.me/lairdnelson
Re: Maven and parallel execution: fundamentally borked, right?
Posted by Olivier Lamy <ol...@apache.org>.
Hi,
Even with MCOMPILER-170, I have noticed some failures depending on
combinations of os/jdk.
For me the same build was failing with osx/jdk1.6 but not with
osx/jdk1.7 same with some ubuntu combination.
What is your os/jdk ?
2012/7/20 Laird Nelson <lj...@gmail.com>:
> On Fri, Jul 20, 2012 at 2:17 PM, Dennis Lundberg <de...@apache.org> wrote:
>
>> Hi
>>
>> Parallel execution works fine, but you need to update the version of
>> maven-compiler-plugin to the latest version 2.5.1. You are being bitten
>> by a bug in that plugin:
>>
>> http://jira.codehaus.org/browse/MCOMPILER-170
>>
>>
> OK; tried with 2.5.1 and got (among other things):
>
> [ERROR] COMPILATION ERROR :
> [INFO] -------------------------------------------------------------
> [ERROR]
> /Users/ljnelson/Projects/foobar/com-foobar-api/src/main/java/com/foobar/api/FrobnicatorManager.java:[18,7]
> cannot access java.util.LinkedHashMap
> class file for java.util.LinkedHashMap not found
>
> Is that a symptom of the same bug?
>
> Thanks for your time.
>
> Best,
> Laird
>
> --
> http://about.me/lairdnelson
--
Olivier Lamy
Talend: http://coders.talend.com
http://twitter.com/olamy | http://linkedin.com/in/olamy
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Re: Maven and parallel execution: fundamentally borked, right?
Posted by Laird Nelson <lj...@gmail.com>.
On Fri, Jul 20, 2012 at 2:17 PM, Dennis Lundberg <de...@apache.org> wrote:
> Hi
>
> Parallel execution works fine, but you need to update the version of
> maven-compiler-plugin to the latest version 2.5.1. You are being bitten
> by a bug in that plugin:
>
> http://jira.codehaus.org/browse/MCOMPILER-170
>
>
OK; tried with 2.5.1 and got (among other things):
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR]
/Users/ljnelson/Projects/foobar/com-foobar-api/src/main/java/com/foobar/api/FrobnicatorManager.java:[18,7]
cannot access java.util.LinkedHashMap
class file for java.util.LinkedHashMap not found
Is that a symptom of the same bug?
Thanks for your time.
Best,
Laird
--
http://about.me/lairdnelson
Re: Maven and parallel execution: fundamentally borked, right?
Posted by Dennis Lundberg <de...@apache.org>.
Hi
Parallel execution works fine, but you need to update the version of
maven-compiler-plugin to the latest version 2.5.1. You are being bitten
by a bug in that plugin:
http://jira.codehaus.org/browse/MCOMPILER-170
On 2012-07-20 22:43, Laird Nelson wrote:
> I have never gotten the -T option to Maven to work.
>
> On a simple jar project that gets scheduled, periodically the compiler will
> say things like this:
>
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-compiler-plugin:2.4:compile
> (default-compile) on project com-foobar-api: Compilation failure:
> Compilation failure:
> [ERROR]
> /Users/ljnelson/Projects/foobar/com-foobar-api/src/main/java/com/foobar/api/FrobnicationManager.java:[1,0]
> class, interface, or enum expected
> [ERROR]
> /Users/ljnelson/Projects/foobar/com-foobar-api/src/main/java/com/foobar/api/FrobnicationManager.java:[5,0]
> class, interface, or enum expected
> [ERROR] -> [Help 1]
>
> ...even though in serial mode this class compiles fine (and indeed is
> syntactically valid).
>
> In other cases it will complain about how it cannot load, e.g.,
> java.util.LinkedHashMap, even though--again--in serial mode this class is
> loaded just fine.
>
> I am using Maven 3.0.3 on a Mac with four cores with -T 2 as my parallel
> option in a large multi-module project.
>
> I assume that the parallel feature of Maven is in a pre-alpha state? Just
> trying to see what the status is.
>
> Best,
> Laird
>
--
Dennis Lundberg
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