On 29/07/14 15:01, Carmen Manzulli wrote:
Ok, sorry; i'm trying to use query and queryFactory classes of jena in my
code in this way:
String que=getConf().get("ARQ.query"); //ARQ in a string
parameter in input (the query, for example SELECT *)
System.out.println("request to process query : "+que);
Query query = QueryFactory.create(que);
in the third line i got error....
So is the error is different to your initial report and currently:
java.lang.NoClassDefFoundError: org.apache.xerces.util.XMLChar
what's the stacktrace for that one?
The maven output looks OK but
1/ Are that there endorsed jars around?
2/ What the runtime classpath?
Andy
i used maven to create my project and i wrote a pom with dependencies; this
is the cut of my pom:
<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-core</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.giraph</groupId>
<artifactId>giraph-core</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.jena</groupId>
<artifactId>jena-arq</artifactId>
<version>2.12.0-SNAPSHOT</version>
</dependency>
</dependencies>
this is the dependency tree:
[INFO] --- maven-dependency-plugin:2.1:tree (default-cli) @ sisinflab ---
[INFO] sisinflab:sisinflab:jar:1.0-SNAPSHOT
[INFO] +- org.apache.hadoop:hadoop-core:jar:1.2.1:compile
[INFO] | +- commons-cli:commons-cli:jar:1.2:compile
[INFO] | +- xmlenc:xmlenc:jar:0.52:compile
[INFO] | +- com.sun.jersey:jersey-core:jar:1.8:compile
[INFO] | +- com.sun.jersey:jersey-json:jar:1.8:compile
[INFO] | | +- org.codehaus.jettison:jettison:jar:1.1:compile
[INFO] | | | \- stax:stax-api:jar:1.0.1:compile
[INFO] | | +- com.sun.xml.bind:jaxb-impl:jar:2.2.3-1:compile
[INFO] | | | \- javax.xml.bind:jaxb-api:jar:2.2.2:compile
[INFO] | | | +- javax.xml.stream:stax-api:jar:1.0-2:compile
[INFO] | | | \- javax.activation:activation:jar:1.1:compile
[INFO] | | +- org.codehaus.jackson:jackson-core-asl:jar:1.7.1:compile
[INFO] | | +- org.codehaus.jackson:jackson-jaxrs:jar:1.7.1:compile
[INFO] | | \- org.codehaus.jackson:jackson-xc:jar:1.7.1:compile
[INFO] | +- com.sun.jersey:jersey-server:jar:1.8:compile
[INFO] | | \- asm:asm:jar:3.1:compile
[INFO] | +- commons-io:commons-io:jar:2.1:compile
[INFO] | +- commons-httpclient:commons-httpclient:jar:3.0.1:compile
[INFO] | | +- junit:junit:jar:3.8.1:compile
[INFO] | | \- commons-logging:commons-logging:jar:1.0.3:compile
[INFO] | +- commons-codec:commons-codec:jar:1.4:compile
[INFO] | +- org.apache.commons:commons-math:jar:2.1:compile
[INFO] | +- commons-configuration:commons-configuration:jar:1.6:compile
[INFO] | | +- commons-collections:commons-collections:jar:3.2.1:compile
[INFO] | | +- commons-lang:commons-lang:jar:2.4:compile
[INFO] | | +- commons-digester:commons-digester:jar:1.8:compile
[INFO] | | | \- commons-beanutils:commons-beanutils:jar:1.7.0:compile
[INFO] | | \- commons-beanutils:commons-beanutils-core:jar:1.8.0:compile
[INFO] | +- commons-net:commons-net:jar:1.4.1:compile
[INFO] | +- org.mortbay.jetty:jetty:jar:6.1.26:compile
[INFO] | | \- org.mortbay.jetty:servlet-api:jar:2.5-20081211:compile
[INFO] | +- org.mortbay.jetty:jetty-util:jar:6.1.26:compile
[INFO] | +- tomcat:jasper-runtime:jar:5.5.12:compile
[INFO] | +- tomcat:jasper-compiler:jar:5.5.12:compile
[INFO] | +- org.mortbay.jetty:jsp-api-2.1:jar:6.1.14:compile
[INFO] | | \- org.mortbay.jetty:servlet-api-2.5:jar:6.1.14:compile
[INFO] | +- org.mortbay.jetty:jsp-2.1:jar:6.1.14:compile
[INFO] | | \- ant:ant:jar:1.6.5:compile
[INFO] | +- commons-el:commons-el:jar:1.0:compile
[INFO] | +- net.java.dev.jets3t:jets3t:jar:0.6.1:compile
[INFO] | +- hsqldb:hsqldb:jar:1.8.0.10:compile
[INFO] | +- oro:oro:jar:2.0.8:compile
[INFO] | +- org.eclipse.jdt:core:jar:3.1.1:compile
[INFO] | \- org.codehaus.jackson:jackson-mapper-asl:jar:1.8.8:compile
[INFO] +- org.apache.giraph:giraph-core:jar:1.1.0:compile
[INFO] \- org.apache.jena:jena-arq:jar:2.12.0-SNAPSHOT:compile
[INFO] +- org.apache.jena:jena-core:jar:2.12.0-SNAPSHOT:compile
[INFO] | +- org.apache.jena:jena-iri:jar:1.1.0-SNAPSHOT:compile
[INFO] | \- xerces:xercesImpl:jar:2.11.0:compile
[INFO] | \- xml-apis:xml-apis:jar:1.4.01:compile
[INFO] +- org.apache.httpcomponents:httpclient:jar:4.2.6:compile
[INFO] | \- org.apache.httpcomponents:httpcore:jar:4.2.5:compile
[INFO] +- com.github.jsonld-java:jsonld-java:jar:0.5.0:compile
[INFO] | +- com.fasterxml.jackson.core:jackson-core:jar:2.3.3:compile
[INFO] | \-
com.fasterxml.jackson.core:jackson-databind:jar:2.3.3:compile
[INFO] | \-
com.fasterxml.jackson.core:jackson-annotations:jar:2.3.0:compile
[INFO] +- org.apache.httpcomponents:httpclient-cache:jar:4.2.6:compile
[INFO] +- org.slf4j:jcl-over-slf4j:jar:1.7.6:compile
[INFO] +- org.slf4j:slf4j-api:jar:1.7.6:compile
[INFO] +- org.slf4j:slf4j-log4j12:jar:1.7.6:compile
[INFO] \- log4j:log4j:jar:1.2.17:compile
after i created jar and executed this one using hadoop
in a first time the problem was NoClassDefFound com.hp.hpl.jena.query
now the output is NoClassDefFound org.apache.xerces.util.XMLChar
2014-07-29 13:43 GMT+02:00 Rob Vesse <[email protected]>:
Carmen
It would be helpful if you showed us what you are doing, otherwise we can
only guess and offer vague suggestions.
Assuming you are using Maven as previously stated please provide the
<dependencies> section of your POM
It is also worth running mvn dependency:tree and checking that you don't
have multiple entries for Jena libraries present. Including the output of
this would also help us debug your problem
Rob
On 29/07/2014 12:08, "Carmen Manzulli" <[email protected]> wrote:
i've proved with jena-arq and jena-core 2.12.0 but these don't fix my
problem...the output is the same:
NoClassDefFoundError: com/hp/hpl/jena/shared/PrefixMapping
can you suggest me a right way to insert jena as dependency keeping in
mind
that i need only Query and QueryFactory classes?
2014-07-28 18:21 GMT+02:00 Andy Seaborne <[email protected]>:
On 28/07/14 16:36, Carmen Manzulli wrote:
ok....i'm using giraph 1.1.0, hadoop 1.2.1 jena arq 2.12.0 and
com.hp.hpl.jena 2.8.8; I've introduced the last one because there were
class not found exceptions for query and queryfactory....i make use of
these two classes to implement a simple select and just for the moment
i'm
using select* as query string to test the code!
jena arq 2.12.0 and jena-core 2.8.8 don't mix.
Use a consistent cut of jena.
Andy
2014-07-28 16:43 GMT+02:00 Andy Seaborne <[email protected]>:
On 28/07/14 15:00, Carmen Manzulli wrote:
Hi experts,
i'm trying to use some jena classes (as Query and QueryFactory) in a
project but when i run my code i get:
java.lang.NoClassDefFoundError:
com/hp/hpl/jena/shared/PrefixMapping$IllegalPrefixException
at com.hp.hpl.jena.query.QueryFactory.create(
QueryFactory.java:68)
at com.hp.hpl.jena.query.QueryFactory.create(
QueryFactory.java:40)
at com.hp.hpl.jena.query.QueryFactory.create(
QueryFactory.java:28)
at sisinflab.Query2.compute(Query2.java:27)
and also :
java.lang.ClassNotFoundException:
com.hp.hpl.jena.shared.PrefixMapping$IllegalPrefixException
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native
Method)
at
java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(
Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 12 more
who can help me?
"NoClassDefFoundError" means it was there are compile time (of Jena)
and
not at runtime (of your code).
You have an incomplete or incompatible set of jars files.
Andy
PS Please could you include things like version numbers (needed for
line
numbers to mean anything), the query in question, etc when describing
something.
