java.lang.ClassNotFoundException: org.apache.lucene.codecs.PostingsFormat - solr

I'm trying to implement an Java program using EmbeddedSolrServer and when I run my program I get an exception :
Jul 03, 2013 12:13:49 PM org.apache.solr.core.CoreContainer <init>
INFO: New CoreContainer 2120829822
Jul 03, 2013 12:13:49 PM org.apache.solr.core.CoreContainer load
INFO: Loading CoreContainer using Solr Home: '/home/usersolr/solr-4.2.1/indexation_test1/solr'
Jul 03, 2013 12:13:49 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: new SolrResourceLoader for directory: '/home/usersolr/solr-4.2.1/indexation_test1/solr/'
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
Caused by: java.lang.NoClassDefFoundError: org/apache/lucene/codecs/PostingsFormat
at org.apache.solr.core.SolrResourceLoader.reloadLuceneSPI(SolrResourceLoader.java:181)
at org.apache.solr.core.SolrResourceLoader.<init>(SolrResourceLoader.java:114)
at org.apache.solr.core.SolrResourceLoader.<init>(SolrResourceLoader.java:231)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:422)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:405)
at org.apache.solr.core.CoreContainer.<init>(CoreContainer.java:189)
at Main.Main.main(Main.java:35)
... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.lucene.codecs.PostingsFormat
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:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
... 12 more
Have someone already met this exception ?
In witch JAR file can found the PostingsFormat class ?
Edit (Solved):
If you're like me and you don't know exactly where to find some jars you need, it's possible to find some jars files under these paths :
solr-X.X.X/example/solr-webapp/webapp/WEB-INF/lib/
solr-X.X.X/example/lib (particularly : servlet-api-X.X.jar)
Hope it helps !
Thank Marvin Emil Brach & Jayendra
Corentin

Please check the lucene-core-X.X.X jar to the class.
Also, if you have download Solr you would have all the required lucene jars in the lib folder which you can check for any class not found exception.

Related

Could not initialize class sun.security.ssl.SSLExtension when deploying spring boot with mssql database to glassfish 5.1

I am new to glassfish server and I am trying to deploy a Spring boot application in glassfish 5.1.
My Spring boot application communicates with database via JPA and Hibernate.
When I compile and deploy with mysql, deployment went fine.
However, when I change the database to Microsoft Sql Server (MSSQL) deployment fails with the error below:
java.lang.Exception: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class sun.security.ssl.SSLExtension
at com.sun.enterprise.web.WebApplication.start(WebApplication.java:136)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:122)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:291)
at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:352)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:500)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:219)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:491)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:540)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:536)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:535)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:566)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:558)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:557)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1465)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:110)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1847)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1723)
at org.glassfish.admin.rest.resources.admin.CommandResource.executeCommand(CommandResource.java:408)
at org.glassfish.admin.rest.resources.admin.CommandResource.execCommandSimpInMultOut(CommandResource.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:76)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:148)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:191)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:200)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:103)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:493)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:415)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:104)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:703)
at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainer.service(GrizzlyHttpContainer.java:377)
at org.glassfish.admin.rest.adapter.JerseyContainerCommandService$3.service(JerseyContainerCommandService.java:174)
at org.glassfish.admin.rest.adapter.RestAdapter.service(RestAdapter.java:179)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:463)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:168)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:242)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:539)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:593)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:573)
at java.lang.Thread.run(Thread.java:750)
]]
Server: Galssfish 5.1
Databse used: mssql
Dependency: runtimeOnly 'com.microsoft.sqlserver:mssql-jdbc'
Java: jdk8
Properties file Config:
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.datasource.url=jdbc:sqlserver://127.0.0.1;databaseName=test_db
spring.datasource.username= SA
spring.datasource.password= Somepassword
Kindly assist.
Thanks to the explanation in Stackoverflow-glassfish5, the issue is now resolved.
There is a problem with Glassfish 5 dependency on Java8 sun package which is causing a clash during deployment.
To fix the issue, we needed to delete the sun folder from grizzly-npn-bootstrap.jar.
Location is: {{glassfish5_home}}/glassfish5/glassfish/modules/endorsed/grizzly-npn-bootstrap.jar.
Procedure is to extract it with a zip application (Winrar), then delete the sun folder and save.
Restart Glassfish 5 and then you are good.

Exception in thread "main" java.lang.NoClassDefFoundError: org/semanticweb/owlapi/model/OWLOntologyCreationException

Help please !
The project works in eclipse but when I switch on the command line (to launch several examples) I obtien this exception
Exception in thread "main" java.lang.NoClassDefFoundError: org/semanticweb/owlapi/model/OWLOntologyCreationException
at com.lc.pilot.test.Main.main(Main.java:34)
Caused by: java.lang.ClassNotFoundException: org.semanticweb.owlapi.model.OWLOntologyCreationException
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)
... 1 more
What is the classpath set when you run your code from the command line?
The error means you're missing the jar containing the declaration for OWLOntologyCreationException - this is either the owlapi-api jar or the owlapi-distribution jar, depending on how you set up your Eclipse project.

GWTP - An error occured for ClassEnhancer "ASM" when trying to call the method "org.datanucleus.enhancer.asm.ASMClassEnhancer"

I am trying to setup GWTP in eclipse and create a simplest possible POC.
I have installed Google plugin with GWT 2.6, Appengine 1.9.18 and GWTP plugin 0.6.1.
I am using Windows 7, and Eclipse luna 4.4
I have two java versions installed on my machine for different versions!!!
On terminal:
D:\project>echo %JAVA_HOME%
"D:\installations\java8"
D:\project>java -version
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b25)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
On Eclipse:
Under Window --> preferences --> Java --> InstalledJREs I have selected the appropriate Java 8 installation.
================================================================
I am trying to create the GWTP project like this :
As soon as I click, finish, I get the following error:
StackTrace:
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.resources.natures" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.resources.builders" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.resources.markers" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.resources.markers" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.resources.markers" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.resources.markers" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.ant.core.extraClasspathEntries" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.ant.core.antTasks" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.jdt.core.classpathContainerInitializer" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.team.core.fileTypes" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.runtime.applications" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.runtime.applications" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.contenttype.contentTypes" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.runtime.preferences" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
Mar 15, 2015 10:49:28 PM org.datanucleus.plugin.NonManagedPluginRegistry registerExtensions
WARNING: Extension Point "org.eclipse.core.runtime.preferences" not registered, but plugin "" defined in file:/D:/project/eclipse-jee-luna-R-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar refers to it.
DataNucleus Enhancer (version 1.1.4) : Enhancement of classes
Mar 15, 2015 10:49:28 PM org.datanucleus.enhancer.DataNucleusEnhancer addMessage
SEVERE: An error occured for ClassEnhancer "ASM" when trying to call the method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class "getClassNameForFileName" : null
java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName(ASMClassEnhancer.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename(DataNucleusEnhancer.java:920)
at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:736)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:545)
at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:74)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:71)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:51)
.
An error occured for ClassEnhancer "ASM" when trying to call the method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class "getClassNameForFileName" : null
java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName(ASMClassEnhancer.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename(DataNucleusEnhancer.java:920)
at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:736)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:545)
at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:74)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:71)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:51)
.
Mar 15, 2015 10:49:28 PM org.datanucleus.enhancer.DataNucleusEnhancer addMessage
SEVERE: An error occured for ClassEnhancer "ASM" when trying to call the method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class "getClassNameForFileName" : null
java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName(ASMClassEnhancer.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename(DataNucleusEnhancer.java:920)
at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:736)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:545)
at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:74)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:71)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:51)
.
An error occured for ClassEnhancer "ASM" when trying to call the method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class "getClassNameForFileName" : null
java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName(ASMClassEnhancer.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename(DataNucleusEnhancer.java:920)
at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:736)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:545)
at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:74)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:71)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:51)
.
.
An error occured for ClassEnhancer "ASM" when trying to call the method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class "getClassNameForFileName" : null
java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName(ASMClassEnhancer.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename(DataNucleusEnhancer.java:920)
at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:736)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:545)
at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1252)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:74)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:71)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:51)
.
DataNucleus Enhancer completed with success for 0 classes. Timings : input=32 ms, enhance=0 ms, total=32 ms. Consult the log for full details
DataNucleus Enhancer completed and no classes were enhanced. Consult the log for full details
###EDIT###
After a clean reinstall, everything worked. A super detailed explanation of everything a GWTP beginner need to know can be tracked on this google group thred. https://groups.google.com/forum/#!topic/gwt-platform/5iE5B_RTCuQ
GWTP 0.6.1 is quite old. For eclipse Luna you need to install the newest version of the plugin. Install it from http://arcbees.github.io/gwtp-eclipse-plugin/

Google App Engine Tutorial 1: Import wrongly? leading to "Could not connect to local host?"

i was attempting google app tutorial 1 from this link.https://googcloudlabs.appspot.com/codelabexercise1.html
Followed exactly what they did and there is an error code of folders missing in WEB-INF/lib directory. So i imported Google API, Google Datastore Beta 2. Then i encountered this error.
Oops! Google Chrome could not connect to localhost:8888
The log in my console is as follow.
Feb 19, 2014 5:21:36 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
INFO: Successfully processed C:\Pirate\CodeLabEx1\war\WEB-INF/appengine-web.xml
Feb 19, 2014 5:21:36 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
SEVERE: Received exception processing C:\Pirate\CodeLabEx1\war\WEB-INF/appengine-web.xml
com.google.apphosting.utils.config.AppEngineConfigException: appengine-web.xml does not contain a <threadsafe> element.
See http://code.google.com/appengine/docs/java/config/appconfig.html#Using_Concurrent_Requests for more information.
You probably want to enable concurrent requests.
at com.google.apphosting.utils.config.AppEngineWebXmlReader.readAppEngineWebXml(AppEngineWebXmlReader.java:85)
at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:166)
at com.google.appengine.tools.development.ApplicationConfigurationManager$WarModuleConfigurationHandle.readConfiguration(ApplicationConfigurationManager.java:399)
at com.google.appengine.tools.development.ApplicationConfigurationManager.<init>(ApplicationConfigurationManager.java:146)
at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:88)
at com.google.appengine.tools.development.DevAppServerImpl.<init>(DevAppServerImpl.java:139)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.google.appengine.tools.development.DevAppServerFactory.doCreateDevAppServer(DevAppServerFactory.java:258)
at com.google.appengine.tools.development.DevAppServerFactory.access$000(DevAppServerFactory.java:36)
at com.google.appengine.tools.development.DevAppServerFactory$1.run(DevAppServerFactory.java:226)
at com.google.appengine.tools.development.DevAppServerFactory$1.run(DevAppServerFactory.java:224)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:224)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:94)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:265)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:219)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:210)
com.google.apphosting.utils.config.AppEngineConfigException: Invalid configuration
at com.google.appengine.tools.development.DevAppServerImpl.reportDeferredConfigurationException(DevAppServerImpl.java:446)
at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:226)
at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:47)
at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:213)
at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:211)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:211)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:277)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:219)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:210)
Caused by: com.google.apphosting.utils.config.AppEngineConfigException: Invalid appengine-web.xml(C:\Pirate\CodeLabEx1\war\WEB-INF/appengine-web.xml) - appengine-web.xml does not contain a <threadsafe> element.
See http://code.google.com/appengine/docs/java/config/appconfig.html#Using_Concurrent_Requests for more information.
You probably want to enable concurrent requests.
at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:168)
at com.google.appengine.tools.development.ApplicationConfigurationManager$WarModuleConfigurationHandle.readConfiguration(ApplicationConfigurationManager.java:399)
at com.google.appengine.tools.development.ApplicationConfigurationManager.<init>(ApplicationConfigurationManager.java:146)
at com.google.appengine.tools.development.ApplicationConfigurationManager.newWarConfigurationManager(ApplicationConfigurationManager.java:88)
at com.google.appengine.tools.development.DevAppServerImpl.<init>(DevAppServerImpl.java:139)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.google.appengine.tools.development.DevAppServerFactory.doCreateDevAppServer(DevAppServerFactory.java:258)
at com.google.appengine.tools.development.DevAppServerFactory.access$000(DevAppServerFactory.java:36)
at com.google.appengine.tools.development.DevAppServerFactory$1.run(DevAppServerFactory.java:226)
at com.google.appengine.tools.development.DevAppServerFactory$1.run(DevAppServerFactory.java:224)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:224)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:94)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:265)
... 3 more
Kindly seek your advice.
It all boils down to inserting true under appengine-web.xml. Code is up and running.
https://developers.google.com/appengine/docs/java/config/appconfig?csw=1#Using_Concurrent_Requests

GuiceServletConfig error

Technologies used are GWT 2.5.1, GWTP 1-RC4, GAE 1.7.7.1, Eclipse Juno
1 - I have the folowing error :
Apr 23, 2013 1:35:34 PM com.google.apphosting.utils.jetty.JettyLogger warn
Avertissement: Could not instantiate listener com.MS.server.guice.GuiceServletConfig
java.lang.ClassNotFoundException: com.MS.server.guice.GuiceServletConfig
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:423)
etc....
2 - I also do not know if I should include appengine-tool-api.jar in the classpath of my project ?
Tks,

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