| Have a look here: https://github.com/divinespear/jpa-schema-gradle-plugin/issues/22 This is a community-built gradle plugin to perform DDL generation with Hibernate. In the example it fails because the persistence.xml makes use of a jta-data-source, triggering an access to JNDI. DDL generation should work in a JRE environment without JNDI and without a DB connection if only a script is generated (no database setup) and the dialect is configured (no auto-detection). It should be possible to defer the JNDI resolution until it is really needed. Alternatively, one might consider allowing to configure an alternate persistence.xml location. Currently the location is hard-coded in PersistenceXmlParser.java. The exception:
used by: org.springframework.jdbc.datasource.lookup.DataSourceLookupFailureException: Failed to look up JNDI DataSource with name 'java:comp/DefaultDataSource'; nested exception is javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial at org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup.getDataSource(JndiDataSourceLookup.java:48) at org.springframework.orm.jpa.persistenceunit.PersistenceUnitReader.parsePersistenceUnitInfo(PersistenceUnitReader.java:255) at org.springframework.orm.jpa.persistenceunit.PersistenceUnitReader.parseDocument(PersistenceUnitReader.java:182) at org.springframework.orm.jpa.persistenceunit.PersistenceUnitReader.readPersistenceUnitInfos(PersistenceUnitReader.java:134) at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.readPersistenceUnitInfos(DefaultPersistenceUnitManager.java:487) at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.preparePersistenceUnitInfos(DefaultPersistenceUnitManager.java:440) at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.afterPropertiesSet(DefaultPersistenceUnitManager.java:424) at org.springframework.beans.factory.InitializingBean$afterPropertiesSet.call(Unknown Source) at io.github.divinespear.gradle.plugin.JpaSchemaGenerateTask.xmllessGenerate(JpaSchemaGenerateTask.groovy:397) at io.github.divinespear.gradle.plugin.JpaSchemaGenerateTask$_generate_closure12.doCall(JpaSchemaGenerateTask.groovy:357) at io.github.divinespear.gradle.plugin.JpaSchemaGenerateTask.generate(JpaSchemaGenerateTask.groovy:331) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:228) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210) at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:585) at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:568) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61) ... 70 more Caused by: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial at org.springframework.jndi.JndiTemplate$1.doInContext(JndiTemplate.java:155) at org.springframework.jndi.JndiTemplate.execute(JndiTemplate.java:87) at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:152) at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:179) at org.springframework.jndi.JndiLocatorSupport.lookup(JndiLocatorSupport.java:95) at org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup.getDataSource(JndiDataSourceLookup.java:45) ... 88 more
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