I'm running a stand alone instance of HBase on Windows using Cygwin. When a try to start Hbase a get the below exception. I have HBASE_CLASSPATH set in my hbase-env.sh file( export HBASE_CLASSPATH=/cygdrive/c/cygwin64/usr/local/hbase-0.94.16/lib/zookeeper-3.4.5.jar). Any help would be great. Thanks.
127.0.0.1: starting zookeeper, logging to /usr/local/hbase-0.94.16/bin/../logs/hbase-espeelman-zookeeper-PTR-KoPWebDev14.out
127.0.0.1: Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/zookeeper/server/quorum/QuorumPeerConfig
127.0.0.1: at org.apache.hadoop.hbase.zookeeper.HQuorumPeer.main(HQuorumPeer.java:62)
127.0.0.1: Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.server.quorum.QuorumPeerConfig
127.0.0.1: at java.net.URLClassLoader$1.run(Unknown Source)
127.0.0.1: at java.net.URLClassLoader$1.run(Unknown Source)
127.0.0.1: at java.security.AccessController.doPrivileged(Native Method)
127.0.0.1: at java.net.URLClassLoader.findClass(Unknown Source)
127.0.0.1: at java.lang.ClassLoader.loadClass(Unknown Source)
127.0.0.1: at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
127.0.0.1: at java.lang.ClassLoader.loadClass(Unknown Source)
starting master, logging to /usr/local/hbase-0.94.16/bin/../logs/hbase-espeelman-master-PTR-KoPWebDev14.out
java.lang.NoClassDefFoundError: org/apache/zookeeper/KeeperException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod(Unknown Source)
at sun.launcher.LauncherHelper.getMainMethod(Unknown Source)
at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.KeeperException
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
Related
Cassandra 4.0 is installed in Azure Kubernetes ubuntu 18.04.1 with 3 nodes and RF=3. Node repair is running by reaper 3.0.0. At the same time, run "nodetool listsnapshots" failed with the exceptions. What could be the reason?
$ nodetool listsnapshots
Snapshot Details:
error: org.apache.cassandra.db.lifecycle.LogFile
-- StackTrace --
java.io.NotSerializableException: org.apache.cassandra.db.lifecycle.LogFile
at java.base/java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.base/java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.base/java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.base/java.io.ObjectOutputStream.defaultWriteObject(Unknown Source)
at java.base/java.lang.Throwable.writeObject(Unknown Source)
at java.base/jdk.internal.reflect.GeneratedMethodAccessor91.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at java.base/java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.base/java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.base/java.io.ObjectOutputStream.writeObject(Unknown Source)
at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at java.rmi/sun.rmi.transport.Transport$1.run(Unknown Source)
at java.rmi/sun.rmi.transport.Transport$1.run(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.rmi/sun.rmi.transport.Transport.serviceCall(Unknown Source)
at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
I try to install & configure Apache JAMES, and when I start run.bat in cmd in Windows I have this error
ERROR 01:19:18,142 | org.apache.james.fetchmail.StoreProcessor | A MessagingException has terminated processing of this Folder
javax.mail.MessagingException: Unable to obtain a connection to the POP3 server (java.net.UnknownHostException: pop.server.com)
at org.apache.geronimo.javamail.store.pop3.connection.POP3Connection.getConnection(POP3Connection.java:154)
at org.apache.geronimo.javamail.store.pop3.connection.POP3Connection.protocolConnect(POP3Connection.java:121)
at org.apache.geronimo.javamail.store.pop3.connection.POP3ConnectionPool.createPoolConnection(POP3ConnectionPool.java:155)
at org.apache.geronimo.javamail.store.pop3.connection.POP3ConnectionPool.protocolConnect(POP3ConnectionPool.java:137)
at org.apache.geronimo.javamail.store.pop3.POP3Store.protocolConnect(POP3Store.java:164)
at javax.mail.Service.connect(Service.java:248)
at javax.mail.Service.connect(Service.java:91)
at org.apache.james.fetchmail.StoreProcessor.process(StoreProcessor.java:63)
at org.apache.james.fetchmail.FetchMail.run(FetchMail.java:487)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.UnknownHostException: pop.server.com
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at org.apache.geronimo.javamail.util.MailConnection.getConnectedSocket(MailConnection.java:310)
at org.apache.geronimo.javamail.util.MailConnection.getConnection(MailConnection.java:253)
at org.apache.geronimo.javamail.store.pop3.connection.POP3Connection.getConnection(POP3Connection.java:152)
... 15 more
Can you help me please
The pop host server pop.server.com seems not exist.
Check your configurations and settings to fix it.
I forked the thingsboard directory. Then I followed the instructions on the site:
https://thingsboard.io/docs/user-guide/contribution/how-to-contribute/
My configuration:
.Ubuntu 16.04
.openjdk version "1.8.0_151"
.javac 1.8.0_151
.Apache Maven 3.3.9
.Node v8.0.0
.npm 5.6.0
I entered the command lines:
mvn clean install -DskipTests
cd ${TB_WORK_DIR}/application/target/bin/install
chmod +x install_dev_db.sh
./install_dev_db.sh
I get the following message:
(I didn't find any issue that would help until then)
===================================================
:: ThingsBoard :: (v1.4.0-SNAPSHOT)
===================================================
log4j:WARN No appenders could be found for logger (hsqldb.db.HSQLDB616AE4A249.ENGINE).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Unable to create initial connections of pool.
java.sql.SQLException: file input/output error: /tmp/thingsboardDb.log
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:310)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:718)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:650)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:468)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:143)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:131)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:254)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:228)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:847)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:874)
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:340)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:319)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.thingsboard.server.ThingsboardInstallApplication.main(ThingsboardInstallApplication.java:43)
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.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:521)
Caused by: org.hsqldb.HsqlException: file input/output error: /tmp/thingsboardDb.log
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.persist.Log.openLog(Unknown Source)
at org.hsqldb.persist.Log.open(Unknown Source)
at org.hsqldb.persist.Logger.open(Unknown Source)
at org.hsqldb.Database.reopen(Unknown Source)
at org.hsqldb.Database.open(Unknown Source)
at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
at org.hsqldb.DatabaseManager.newSession(Unknown Source)
... 55 common frames omitted
Starting ThingsBoard Installation...
Installing DataBase schema...
Installing SQL DataBase schema...
Unexpected error during ThingsBoard installation!
java.sql.SQLException: file input/output error: /tmp/thingsboardDb.log
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at org.thingsboard.server.service.install.SqlDatabaseSchemaService.createDatabaseSchema(SqlDatabaseSchemaService.java:60)
at org.thingsboard.server.install.ThingsboardInstallService.performInstall(ThingsboardInstallService.java:118)
at org.thingsboard.server.ThingsboardInstallApplication.main(ThingsboardInstallApplication.java:44)
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.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:521)
Caused by: org.hsqldb.HsqlException: file input/output error: /tmp/thingsboardDb.log
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.persist.Log.openLog(Unknown Source)
at org.hsqldb.persist.Log.open(Unknown Source)
at org.hsqldb.persist.Logger.open(Unknown Source)
at org.hsqldb.Database.reopen(Unknown Source)
at org.hsqldb.Database.open(Unknown Source)
at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
at org.hsqldb.DatabaseManager.newSession(Unknown Source)
... 16 common frames omitted
Unexpected error during ThingsBoard installation!
ThingsBoard DB installation failed!
Thanks in advance!
I am running a Jupyter Notebook (Jupyter 1.0.0) with Spark (Spark 2.1.0) and am successfully able to run Pyspark code. But when I launch two notebooks that are located under same directory as shown below:
notebooks
|__ Notebook1
|__ Notebook2
and launch Notebook1 and then launch Notebook2, Notebook1 launches and works successfully but the Notebook2 does not launch successfully due to Spark Context initiation errors. It looks like it is something to do with the spark metastore.
Below is the stack trace from Spark:
Caused by: ERROR XSDB6: Another instance of Derby may have already booted the database XXXXXXXX/notebooks/metastore_db.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.privGetJBMSLockOnDB(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.getJBMSLockOnDB(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown Source)
at org.apache.derby.impl.store.raw.RawStore$6.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.store.raw.RawStore.bootServiceModule(Unknown Source)
at org.apache.derby.impl.store.raw.RawStore.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown Source)
at org.apache.derby.impl.store.access.RAMAccessManager$5.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.store.access.RAMAccessManager.bootServiceModule(Unknown Source)
at org.apache.derby.impl.store.access.RAMAccessManager.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown Source)
at org.apache.derby.impl.db.BasicDatabase$5.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.db.BasicDatabase.bootServiceModule(Unknown Source)
at org.apache.derby.impl.db.BasicDatabase.bootStore(Unknown Source)
at org.apache.derby.impl.db.BasicDatabase.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.startProviderService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.findProviderAndStartService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.startPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.startPersistentService(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection$4.run(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.jdbc.EmbedConnection.startPersistentService(Unknown Source)
It looks like your issue may be with Derby, Sparks default database for storing its instructions to itself. Derby can only be used by one entity at a time, So starting a second Notebook confuses it. I ran into this problem myself, and solved it by connecting Spark to Postgres instead.
Check out this answer and see if it works for you:
How to run multiple instances of spark 2.0
I tried to compile the groovy quickstart example which comes with gradle (in samples/groovy/quickstart directory). gradle compileGroovy and gradle jar both complete successfuly, but I cannot run any of these:
c:\tmp\quickstart\build\classes\main\org\gradle>java Person
Exception in thread "main" java.lang.NoClassDefFoundError: Person (wrong name: org/gradle/Person)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: Person. Program will exit.
and
c:\tmp\quickstart\build\libs>java -jar quickstart.jar
Failed to load Main-Class manifest attribute from
quickstart.jar
i then added manifest attribute to bulid.gradle:
jar {
manifest {
attributes("Main-Class": "org.gradle.Person")
}
}
and now am getting:
c:\tmp\quickstart\build\libs>java -jar quickstart.jar
Exception in thread "main" java.lang.NoClassDefFoundError: groovy/lang/GroovyObject
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Caused by: java.lang.ClassNotFoundException: groovy.lang.GroovyObject
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 12 more
Could not find the main class: org.gradle.Person. Program will exit.
How can I run the jar that was created? (or am I missing the whole point...)
The groovy/quickstart sample in the Gradle distribution is not meant to be executed directly. Among other things, the Person class does not have a main method. Think of it as a library.