Eclipse 4.3 EE Facet JPA 2.0构建错误 [英] eclipse 4.3 EE facet jpa 2.0 build error
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问题描述
我正在尝试Eclipse Kepler 4.3 EE
I'm trying Eclipse Kepler 4.3 EE
在旧工作区中打开它之后，我的项目开始出现构建错误：
After open it over my old workspace, my project starts with an build error:
This project has the JPA facet, but no JPA project could be created. See the error log for more details.
这是详细信息：
eclipse.buildId=4.3.0.I20130605-2000
java.version=1.7.0_21
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=pt_BR
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -data D:\JJW\srcWeb -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product
Error
Mon Aug 19 14:46:53 BRT 2013
null JPA platform: P/jjwxp-web
java.lang.IllegalArgumentException
at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject(InternalJpaProjectManager.java:643)
at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject(InternalJpaProjectManager.java:635)
at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject(InternalJpaProjectManager.java:628)
at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.addJpaProject(InternalJpaProjectManager.java:609)
at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject_(InternalJpaProjectManager.java:312)
at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager$BuildJpaProjectCommand.execute(InternalJpaProjectManager.java:306)
at org.eclipse.jpt.common.core.internal.utility.command.CommandJobCommandAdapter.execute(CommandJobCommandAdapter.java:50)
at org.eclipse.jpt.common.core.internal.utility.command.JobCommandJob.run(JobCommandJob.java:42)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
项目方面：JPA 2.0
Project facet: JPA 2.0
Persistence.xml
Persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="jjwxp-web-unit"
transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>br.com.jjw.jjwxp.web.model.Pais</class>
<class>br.com.jjw.jjwxp.web.model.Estado</class>
<class>br.com.jjw.jjwxp.web.model.Cidade</class>
<class>br.com.jjw.jjwxp.web.model.Usuario</class>
<class>br.com.jjw.jjwxp.web.model.Empresa</class>
<class>br.com.jjw.jjwxp.web.model.Pessoa</class>
<class>br.com.jjw.jjwxp.web.model.PessoaCliente</class>
<class>br.com.jjw.jjwxp.web.model.PessoaRepresentante</class>
<class>br.com.jjw.jjwxp.web.model.PessoaContato</class>
<class>br.com.jjw.jjwxp.web.model.ListaPrecos</class>
<class>br.com.jjw.jjwxp.web.model.ListaPrecosRepresentante</class>
<class>br.com.jjw.jjwxp.web.model.ListaPrecosColuna</class>
<class>br.com.jjw.jjwxp.web.model.ListaPrecosItem</class>
<class>br.com.jjw.jjwxp.web.model.Produto</class>
<class>br.com.jjw.jjwxp.web.model.ProdutoGrade</class>
<class>br.com.jjw.jjwxp.web.model.ProdutoEstoque</class>
<class>br.com.jjw.jjwxp.web.model.ProdutoCor</class>
<class>br.com.jjw.jjwxp.web.model.FaixaTamanho</class>
<class>br.com.jjw.jjwxp.web.model.GrupoProduto</class>
<class>br.com.jjw.jjwxp.web.model.Tamanho</class>
<class>br.com.jjw.jjwxp.web.model.Cor</class>
<class>br.com.jjw.jjwxp.web.model.ProdutoImagem</class>
<class>br.com.jjw.jjwxp.web.model.ProdutoCorImagem</class>
<class>br.com.jjw.jjwxp.web.model.PVE</class>
<class>br.com.jjw.jjwxp.web.model.PVEItem</class>
<class>br.com.jjw.jjwxp.web.model.PVEItemGrade</class>
<class>br.com.jjw.jjwxp.web.model.CondicaoPagamento</class>
<class>br.com.jjw.jjwxp.web.model.ModalidadeVenda</class>
<class>br.com.jjw.jjwxp.web.model.Moeda</class>
<class>br.com.jjw.jjwxp.web.model.ClassificacaoFiscal</class>
<class>br.com.jjw.jjwxp.web.model.ClassificacaoFiscalEmpresa</class>
<class>br.com.jjw.jjwxp.web.model.RepresentanteProduto</class>
<class>br.com.jjw.jjwxp.web.model.ModuloSistema</class>
<shared-cache-mode>NONE</shared-cache-mode>
<properties>
<property name="eclipselink.ddl-generation" value="NONE" />
<property name="eclipselink.weaving" value="dynamic" />
<property name="eclipselink.logging.level" value="FINE" />
<property name="eclipselink.logging.logger"
value="org.eclipse.persistence.logging.CommonsLoggingSessionLog" />
</properties>
</persistence-unit>
</persistence>
有什么想法吗？
推荐答案
下载Eclipse Neon之后，我遇到了同样的问题。我通过以下方法解决了这个问题：
I just had the same exact issue after downloading Eclipse Neon. I solved the problem by:
- 右键单击该项目。然后选择属性以打开属性窗口。
- 选择JPA以查看JPA配置。在平台下，在我的案例Hibernate（JPA 2.1）中选择JPA平台。
- 在 JPA实现类型下，选择禁用库配置，原因是我在使用maven项目，声明为JPA依赖关系，因此该库将在类路径中可用。
- 在持久类管理下，请确保选择选项自动发现带注释的类。单击应用后，然后单击确定，它应该可以解决该错误。
- Right click on the project. Then select properties to open the properties window.
- Select JPA to see the JPA configuration. Under platform, select the JPA platform in my case Hibernate (JPA 2.1).
- Under JPA Implementation Type, select Disable Library Configuration cause in my case, I'm using a maven project where I declared the JPA dependencies, so the library will be available in the classpath.
- Under Peristent class management make sure you select the option discover annotated classes automatically. After click apply, then OK and it should resolve the error.
在Project Properties ---> Project Facets下，请确保您选择正确的Java版本和目标运行时（您的JDK），并取消选中实用程序模块复选框。
Also under Project Properties ---> Project Facets, make sure you select the proper Java version and target runtime (your JDK) and also deselect Utility Module check box if it is checked.
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