Re: SPI class of type org.apache.lucene.codecs.Codec error

Gayo Diallo Sun, 25 Aug 2013 05:20:42 -0700

Dear all,

Please do you have any suggestion regarding the below issue?

best regards,
Gayo

Hi,

Thank you both for the help.


Here are the contents you asked.

For the final Jar that we use with a third client application:
The content of META-INF/services/org.apache.lucene.codecs.Codec is
org.apache.lucene.codecs.lucene40.Lucene40Codec
org.apache.lucene.codecs.lucene3x.Lucene3xCodec
org.apache.lucene.codecs.lucene41.Lucene41Codec
org.apache.lucene.codecs.lucene42.Lucene42Codec

The content of META-INF/services/org.apache.lucene.codecs.PostingsFormat is
org.apache.lucene.codecs.lucene40.Lucene40PostingsFormat
org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat

I do realize that there is no 
org.apache.lucene.codecs.lucene42.Lucene42PostingsFormat. Is that a possible 
reason for the issue?

Please not that lucene is primarily used by a maven project on which depends 
our final project. The content of 
META-INF/services/org.apache.lucene.codecsbothPostingsFormat andCodec of 
that project are similar to those I listed above.
The two POM are listed here: 1) http://lesimisped.free.fr/servo/pom1IMM.xml 
(it uses 3 lucene jar); 2) final: 
http://lesimisped.free.fr/servo/pom2Final.xml. In both POM we have changed 
the configuration of the transformer after a suggestion from this list.
<transformers><transformer 
implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource> META-INF/services/org.apache.lucene.codecs.Codec 
</resource></transformer>

I have also noticed that into the original lucene.core.jar, the 
/META-INF/services/o.p.l.c.PostingFormat  content is
org.apache.lucene.codecs.lucene40.Lucene40PostingsFormat
org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat

there is no org.apache.lucene.codecs.lucene42.Lucene42PostingsFormat and in 
the repository /org/apache/lucene/codecs/lucene42/ of the jar there is 
nothing similari to  Lucene42PostingsXXX.class 
(http://lesimisped.free.fr/servo/lucene42.png) contrary to 
/org/apache/lucene/codecs/lucene41/ for instance 
(http://lesimisped.free.fr/servo/lucene40.png).

If you need to see any additional file/resource/config please let me know.

Best regards,
Gayo

Le 21/08/2013 20:09, Adriano Ferreira a écrit :

Hi,

Could you send the contenf of org.apache.lucene.codecs.Codec and pom.xml?

2013/8/21 Gayo Diallo <gayo.dia...@isped.u-bordeaux2.fr>

Hi guys,

Thank you both for the help.

@Adriano: we have just tried the solution that worked for you without success.

@Duke: we could see in the fat jar in the Meta-Inf/services folder that we have org.apache.lucene.codecs.Codec and in org/apache/lucene/codecs we have the Codec class. However, the lucene42 folder under codecs does not include a classe Lucene42 instead, we have Lucene42Codec.class, Lucene42Codec$1.class and Lucene42Codec$2.class.
Is that normal as the error we got says "A SPI class of type org.apache.lucene.codecs.Codec with name 'Lucene42' does not exist"? The issue does not occurs as far as we are within Eclipse. But when we test the same client outside the IDE we got it...

Best regards,
Gayo

Le 21/08/2013 16:14, Adriano Ferreira a écrit :

I had this same problem using a library that used a new codec for lucene.
In creating the jar maven was replacing the META-INF. I solved the problem
with the following configuration in pom.xml

<configuration>
               <transformers>
                 <transformer
implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                   <resource>
META-INF/services/org.apache.lucene.codecs.Codec </ resource>
                 </ transformer>
               </ transformers>
</ configuration>

Adriano



2013/8/21 Duke DAI <duke.dai....@gmail.com>

Hi GD,

No idea why maven can't work, or the project structure is a little
complex？

Also sure that lucene 2.9 has no problem with this because it does not
depend on SPI.

First you need to check the fat jar file and the file
META-INF/services/o.a.l.codecs.Codec and its counterparts are there.
If no, then the workaround is to have way to add all META-INF/services/xxx
into your fat jar.
If yes, the problem may be with classloader, classloader can't locate the
SPI file within its context, I guess it's not this case.

Hope this help.

Best regards,
Duke
If not now, when? If not me, who?


On Tue, Aug 20, 2013 at 11:09 PM, Gayo Diallo <
gayo.dia...@isped.u-bordeaux2.fr> wrote:

 Thank you Duke for your help. We have already tried that solution after
a kindly advise from this mailing list. But we still having the error.

Actually the POM of the project is here
http://lesimisped.free.fr/servo/pom2.xml. It reuses a project which uses
Lucene, and the POM is this project is
http://lesimisped.free.fr/servo/pom.xml.
With a similar project which uses lucene 2.9 we didn't experienced such
an issue.

Hope that may help.

Best regards,
GD

Le 20/08/2013 16:10, Duke DAI a écrit :

The linkhttp://maven.apache.org/plugins/maven-shade-plugin/examples/resource-transformers.html#ServicesResourceTransformer
will
help.

Best regards,
Duke
If not now, when? If not me, who?


On Mon, Aug 19, 2013 at 8:48 PM, Amal Kammoun <kammoun.ama...@gmail.com> <kammoun.ama...@gmail.com>wrote:


 Dear All,

Please do you have any advice regarding the issue we raised  bellow and in
the previous post?

Thank you for your help.

best regards,
Amal


find here the two links http://lesimisped.free.fr/servo/servicesP1.pnghttp://lesimisped.free.fr/servo/servicesP2.png


When we open org.apache.lucene.codecs.Codec, the both have the same content
org.apache.lucene.codecs.lucene40.Lucene40Codec
org.apache.lucene.codecs.lucene3x.Lucene3xCodec
org.apache.lucene.codecs.lucene41.Lucene41Codec
org.apache.lucene.codecs.lucene42.Lucene42Codec

Thanks for your help.



2013/8/18 Amal Kammoun <kammoun.ama...@gmail.com> <kammoun.ama...@gmail.com>

 Hi Uwe,

Please find here the two linkshttp://lesimisped.free.fr/servo/servicesP1.pnghttp://lesimisped.free.fr/servo/servicesP2.png


When we open org.apache.lucene.codecs.Codec, the both have the same

 content

 org.apache.lucene.codecs.lucene40.Lucene40Codec
org.apache.lucene.codecs.lucene3x.Lucene3xCodec
org.apache.lucene.codecs.lucene41.Lucene41Codec
org.apache.lucene.codecs.lucene42.Lucene42Codec

Thanks for your help.
Amal


2013/8/16 Uwe Schindler <u...@thetaphi.de> <u...@thetaphi.de>

 Hi,



There is no screen shot attached to your mail. Please put it somewhere

 in

 the web and send a link.



Uwe



-----

Uwe Schindler

H.-H.-Meier-Allee 63, D-28213 Bremen

 <http://www.thetaphi.de/> <http://www.thetaphi.de/> http://www.thetaphi.de

eMail: u...@thetaphi.de



From: Amal Kammoun [mailto:kammoun.ama...@gmail.com <kammoun.ama...@gmail.com>]
Sent: Friday, August 16, 2013 6:08 PM
To: java-user@lucene.apache.org
Subject: Re: SPI class of type org.apache.lucene.codecs.Codec error



Thank you,

We are using Eclipse under Linux, and Java 1.7. Maven Shade is used for
assembling the project (P1) which depends on another project which uses
Lucene (P2).  P2 uses lucene.core, lucene.queryparser,
lucene.analyzercommon.

Please find enclosed a screen-shot of the services of the two Jar.

We use to use previous versions of lucene (2.x) and we perform the same
process of assembling without issue.

Hope this could help.

best regards,

Amal





2013/8/16 Uwe Schindler <u...@thetaphi.de> <u...@thetaphi.de>

Hi,

Maven makes it even simplier to handle this! The problem may be (I am

 not

 sure not sure, because I don’t know your setup):
It seems that you are using the Maven Shade Plugin to merge all JAR

 files

 into one BIG JAR file. During this step, you may be missing to merge all
the data correctly in your JAR files. Lucene JARs also contain metadata

 and

 other resources (in addition to class files) in the META-INF folders and
those are generally not always merged by all those tools, so those must

 be

 copied and merged if multiple META-INF/services with same name exist.

 The

 Maven-Shade-Plugin can do this for you, see:




 http://maven.apache.org/plugins/maven-shade-plugin/examples/resource-transformers.html

 Especially:


 http://maven.apache.org/plugins/maven-shade-plugin/examples/resource-transformers.html#ServicesResourceTransformer


 It is recommended to use the ServicesResourceTransformer option.

Ideally, you should not change or transform JAR files of Lucene at all
and not merge them, just ship them with your project as is. Please keep
them separate, only for special use cases like autostarting double-click
JAR files, merge them otherwise management gets crazy.

In any case, please check your classpath:
- Are the *unmodified* lucene-core.jar files in it?
- Don't use crazy classloader hierarchies. Keep all Lucene code together
in one classloader (so don't place Lucene JAR files outside your webapp,
but the code using lucene inside a webapp).
- If you create uber-JARS (which is a bad idea in general), use
Maven-Shade plugin and configure it correctly. The Uber-JAR file must
contain a "META-INF/services" folder with some org.apache.lucene.index.*
files.

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremenhttp://www.thetaphi.de
eMail: u...@thetaphi.de


 -----Original Message-----
From: Amal Kammoun [mailto:kammoun.ama...@gmail.com <kammoun.ama...@gmail.com>]
Sent: Friday, August 16, 2013 5:39 PM
To: java-user@lucene.apache.org
Subject: SPI class of type org.apache.lucene.codecs.Codec error

Hi,

We are working on a project which uses Lucene 4.2.1. Actually we are

 facing

 an error message "java.lang.
ExceptionInInitializerError". We are using Maven for assembling the

 project

 and we have a dependency between two projects. When we do the test
with eclipse it works fine. However, when we incorporate our jar in a

 client

 that is tested outside Eclipse we got the

 java.lang.ExceptionInInitializerError.

 We are doing workaround to overcome the issue since yesterday, we got

 the

 same issue with both versions of Lucene 4.2.0 and 4.2.1.

Have you ever experienced such an issue with maven? Are the newer
Lucene versions safer from such an issue?

Here is the rest of the message error
Caused by: java.lang.
IllegalArgumentException: A SPI class of type
org.apache.lucene.codecs.Codec with name 'Lucene42' does not exist.

  You

  need to add the corresponding JAR file supporting this SPI to your
classpath.The current classpath supports the following names.

Thank you a lot in advance for your support.
Best regards,

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--

Dr Gayo Diallo
PhD, Associate Professor in Computer Sciences
[image: Université Bordeaux Segalen] <http://www.univ-bordeauxsegalen.fr> [image:
ISPED] <http://www.isped.u-bordeaux2.fr>

ISPED, Université Bordeaux Segalen
Bât. NB, 1er étage, Bureau 30
146 rue Léo Saignat 33076 Bordeaux cedex
France
Tél. +33 (0)5 57579540▪ Fax +33 (0)556240081

gayo.dia...@isped.u-bordeaux2.fr
www.gayodiallo.org
www.univ-bordeauxsegalen.fr


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Dr Gayo Diallo
PhD, Associate Professor in Computer Sciences

ISPED, Université Bordeaux Segalen
Bât. NB, 1er étage, Bureau 30
146 rue Léo Saignat 33076 Bordeaux cedex
France
Tél. +33 (0)5 57579540▪ Fax +33 (0)556240081

gayo.dia...@isped.u-bordeaux2.fr
www.gayodiallo.org
www.univ-bordeauxsegalen.fr

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Adriano G Ferreira

11 2366-2388

11 98288-3325

www.indekse.com.br

Dr Gayo Diallo
PhD, Associate Professor in Computer Sciences

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Re: SPI class of type org.apache.lucene.codecs.Codec error

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