openjpa-maven-plugin

问题 This is using OpenJPA 2.4.2 in my maven project to automate build-time enhancement of the JPA entities: <plugin> <groupId>org.apache.openjpa</groupId> <artifactId>openjpa-maven-plugin</artifactId> <configuration> <includes>**/entity/*.class</includes> <addDefaultConstructor>true</addDefaultConstructor> <enforcePropertyRestrictions>true</enforcePropertyRestrictions> <persistenceXmlFile>src/main/resources/META-INF/persistence.xml</persistenceXmlFile> </configuration> <executions> <execution>

问题 mvn package fails at the openjpa-maven-plugin:enhance stage when I try to enhance my JPA entities in a Spring Boot app. There's a long error description enhance failed: MetaDataFactory could not be configured (conf.newMetaDataFactoryInstance() returned null). no configuration properties were found. It lists some reasons: Ensure that you have a META-INF/persistence.xml file, that it is available in your classpath I'm using spring-data-jpa with Java config, and there's no persistence.xml . Is

问题 mvn package fails at the openjpa-maven-plugin:enhance stage when I try to enhance my JPA entities in a Spring Boot app. There's a long error description enhance failed: MetaDataFactory could not be configured (conf.newMetaDataFactoryInstance() returned null). no configuration properties were found. It lists some reasons: Ensure that you have a META-INF/persistence.xml file, that it is available in your classpath I'm using spring-data-jpa with Java config, and there's no persistence.xml . Is

问题 Update: After I digged into the source code of spring-data-jpa repository query methods, I found the root cause is the createQuery method of PartTreeJpaQuery as below. This method will be called by the invoke method of the QueryExecutorMethodInterceptor of the RepositoryFactorySupport when you call the spring-data-jpa repository query methods interface. public Query createQuery(Object[] values) { CriteriaQuery<?> criteriaQuery = cachedCriteriaQuery; List<ParameterMetadata<?>> expressions =