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Nims
 Post subject: Problem in hbm2java----ExceptionInInitializerError
PostPosted: Mon Feb 06, 2006 3:40 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
Hibernate Version : 3.1

Hibernate-Tools Version : 3.1.0.beta3

Using the following ant task i m trying generate POJOS....

<taskdef name="hibernatetool"
classname="org.hibernate.tool.ant.HibernateToolTask"
classpathref="project.class.path"/>
<target name="javacode" depends="init">
<hibernatetool destdir="${src.dir}">
<configuration configurationfile="Mapping/hibernate.cfg.xml">
<fileset dir="${hibernate.mappings}">
<include name="*.hbm.xml"/>
</fileset>
</configuration>
<hbm2java />
</hibernatetool>
</target>

it gives the follwing output:


init:

javacode:
[hibernatetool] Executing Hibernate Tool with a Standard Configuration
[hibernatetool] 1. task: hbm2java (Generates a set of .java files)

BUILD FAILED
java.lang.ExceptionInInitializerError

Total time: 1 second

can anyone help me to figure out the problem????

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Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 4:07 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
run it with ant -v to get a full stacktrace.

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 4:26 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
Hi Max...

Thanx for the reply....

Here is the full stack trace....




init:

javacode:
[hibernatetool] Executing Hibernate Tool with a Standard Configuration
[hibernatetool] 1. task: hbm2java (Generates a set of .java files)

BUILD FAILED
java.lang.ExceptionInInitializerError
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1225)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at oracle.jdevimpl.ant.runner.AntLauncher.launch(AntLauncher.java:321)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at oracle.jdevimpl.ant.runner.InProcessAntStarter.runAnt(InProcessAntStarter.java:298)
at oracle.jdevimpl.ant.runner.InProcessAntStarter.mav$runAnt(InProcessAntStarter.java)
at oracle.jdevimpl.ant.runner.InProcessAntStarter$1.run(InProcessAntStarter.java:74)
Caused by: java.lang.ExceptionInInitializerError
at org.hibernate.tool.ant.Hbm2JavaExporterTask.createExporter(Hbm2JavaExporterTask.java:41)
at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:38)
at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:143)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
... 11 more
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: No suitable Log constructor
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:509)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:285)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:255)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:381)
at org.hibernate.tool.hbm2x.POJOExporter.<clinit>(POJOExporter.java:19)
... 19 more
Caused by: org.apache.commons.logging.LogConfigurationException: No suitable Log constructor
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:420)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:502)
... 23 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
at java.lang.Class.getConstructor0(Class.java:2640)
at java.lang.Class.getConstructor(Class.java:1629)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:417)
... 24 more
--- Nested Exception ---
java.lang.ExceptionInInitializerError
at org.hibernate.tool.ant.Hbm2JavaExporterTask.createExporter(Hbm2JavaExporterTask.java:41)
at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:38)
at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:143)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at oracle.jdevimpl.ant.runner.AntLauncher.launch(AntLauncher.java:321)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at oracle.jdevimpl.ant.runner.InProcessAntStarter.runAnt(InProcessAntStarter.java:298)
at oracle.jdevimpl.ant.runner.InProcessAntStarter.mav$runAnt(InProcessAntStarter.java)
at oracle.jdevimpl.ant.runner.InProcessAntStarter$1.run(InProcessAntStarter.java:74)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: No suitable Log constructor
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:509)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:285)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:255)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:381)
at org.hibernate.tool.hbm2x.POJOExporter.<clinit>(POJOExporter.java:19)
... 19 more
Caused by: org.apache.commons.logging.LogConfigurationException: No suitable Log constructor
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:420)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:502)
... 23 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
at java.lang.Class.getConstructor0(Class.java:2640)
at java.lang.Class.getConstructor(Class.java:1629)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:417)
... 24 more

Total time: 16 seconds

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Regards,
Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 4:30 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
so:

Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
at java.lang.Class.getConstructor0(Class.java:2640)
at java.lang.Class.getConstructor(Class.java:1629)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:417)

you are missing log4j ...

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 4:32 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
ya...i noticed that and i placed log4j-1.2.11.jar in my class path....but still i m getting tha same exception

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Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 4:37 am 
Hibernate Team
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Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
it should be in the classpath of the taskdef

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 4:41 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
it is there in the class path of taskdef only


<path id="project.class.path">
<pathelement location="${classes.dir}" />
<fileset dir="${hibernate}">
<include name="hibernate3.jar"/>
</fileset>
<fileset dir="${hibernate}/lib">
<include name="*.jar"/>
</fileset>
<fileset dir="${hibernate.extensions}">
<include name="**/*.jar"/>
</fileset>
<fileset dir="${hibernate.extensions}/plugins/org.hibernate.eclipse_3.1.0.beta3/lib/tools">
<include name="hibernate-tools.jar"/>
</fileset>

<fileset dir="${hibernate.extensions}/plugins/org.hibernate.eclipse_3.1.0.beta3/lib/hibernate">
<include name="log4j-1.2.11.jar"/>
</fileset>
</path>

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Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 4:49 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
and where do you use this $project.classpath ?

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 4:51 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
<taskdef name="hibernatetool"
classname="org.hibernate.tool.ant.HibernateToolTask"
classpathref="project.class.path"/>
<target name="javacode" depends="init">
<hibernatetool destdir="${src.dir}">
<configuration configurationfile="Mapping/hibernate.cfg.xml">
<fileset dir="${hibernate.mappings}">
<include name="*.hbm.xml"/>
</fileset>
</configuration>
<hbm2java />
</hibernatetool>
</target>

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Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 4:54 am 
Hibernate Team
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Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
you should not put project specific classes into <taskdef>. so remove the classes.dir from this classpath and put that into the <hibernatetool>

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 5:13 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
can you please be specific..........
how to specify and where to specify.......

As i m fresher i dont know much about ant and tasks ......etc.....

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Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 5:18 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
<hibernatetool> can have a <classpath> element too.

<hibernatetool ....>
<classpath ...>

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 5:25 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
i specified like this.........

still the same exception........


<hibernatetool destdir="${src.dir}">
<configuration configurationfile="Mapping/hibernate.cfg.xml">
<fileset dir="${hibernate.mappings}">
<include name="*.hbm.xml"/>
</fileset>
</configuration>
<hbm2java />
<classpath refid="project.class.path">
</classpath>
</hibernatetool>

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Nims.

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max
 Post subject:
PostPosted: Mon Feb 06, 2006 5:28 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
you don't understand me ;)

You should not specify the same classpath here!

You need to seperate the classpaths for what they should be used for or otherwise class loading problems will occur.

the <taskdef> classpath just needs the general libraries for making the tools/hibernate run. No user specific stuff there.

The <hibernatetool> classpath is where you put user specific classes, e.g. your classes directory.

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Nims
 Post subject:
PostPosted: Mon Feb 06, 2006 5:36 am 
Newbie

Joined: Tue Dec 13, 2005 2:13 am
Posts: 8
i hope i understood!!!!!!!!!!

u mean to say that i need to have different class path which includes all supported jar files for this specific task.......am i???

i am sorry for putting you in trouble(i mean making me to understand)....

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Nims.

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