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今天我尝试在我的项目中使用 lambda 表达式。我将我的项目配置为在任何地方使用 Java 8：构建路径、Java 编译器、maven-compiler-plugin，但是当我执行“运行/Maven 安装”时它显示错误。

java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:103)
    at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:122)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:321)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:288)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:284)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [test-context.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: error trying to scan <jar-file>: file:/E:/Workspace/myproject-trunk/target/classes
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1514)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:191)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1119)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:924)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:120)
    at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60)
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:102)
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:246)
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:69)
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:95)
    ... 31 more
Caused by: java.lang.RuntimeException: error trying to scan <jar-file>: file:/E:/Workspace/myproject-trunk/target/classes
    at org.hibernate.ejb.Ejb3Configuration.scanForClasses(Ejb3Configuration.java:831)
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:582)
    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:72)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:290)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1573)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1511)
    ... 46 more
Caused by: java.lang.RuntimeException: Error while reading file:/E:/Workspace/myproject-trunk/target/classes
    at org.hibernate.ejb.packaging.NativeScanner.getClassesInJar(NativeScanner.java:131)
    at org.hibernate.ejb.Ejb3Configuration.addScannedEntries(Ejb3Configuration.java:467)
    at org.hibernate.ejb.Ejb3Configuration.scanForClasses(Ejb3Configuration.java:828)
    ... 52 more
Caused by: java.io.IOException: invalid constant type: 18
    at javassist.bytecode.ConstPool.readOne(ConstPool.java:1027)
    at javassist.bytecode.ConstPool.read(ConstPool.java:970)
    at javassist.bytecode.ConstPool.<init>(ConstPool.java:127)
    at javassist.bytecode.ClassFile.read(ClassFile.java:693)
    at javassist.bytecode.ClassFile.<init>(ClassFile.java:85)
    at org.hibernate.ejb.packaging.AbstractJarVisitor.checkAnnotationMatching(AbstractJarVisitor.java:243)
    at org.hibernate.ejb.packaging.AbstractJarVisitor.executeJavaElementFilter(AbstractJarVisitor.java:209)
    at org.hibernate.ejb.packaging.AbstractJarVisitor.addElement(AbstractJarVisitor.java:170)
    at org.hibernate.ejb.packaging.ExplodedJarVisitor.getClassNamesInTree(ExplodedJarVisitor.java:121)
    at org.hibernate.ejb.packaging.ExplodedJarVisitor.getClassNamesInTree(ExplodedJarVisitor.java:129)
    at org.hibernate.ejb.packaging.ExplodedJarVisitor.getClassNamesInTree(ExplodedJarVisitor.java:129)
    at org.hibernate.ejb.packaging.ExplodedJarVisitor.getClassNamesInTree(ExplodedJarVisitor.java:129)
    at org.hibernate.ejb.packaging.ExplodedJarVisitor.getClassNamesInTree(ExplodedJarVisitor.java:129)
    at org.hibernate.ejb.packaging.ExplodedJarVisitor.doProcessElements(ExplodedJarVisitor.java:87)
    at org.hibernate.ejb.packaging.AbstractJarVisitor.getMatchingEntries(AbstractJarVisitor.java:146)
    at org.hibernate.ejb.packaging.NativeScanner.getClassesInJar(NativeScanner.java:128)
    ... 54 more

pom.xml

....
        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.18.2-GA</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <verbose>true</verbose>
                    <outputEncoding>UTF-8</outputEncoding>
                    <source>1.8</source>
                    <target>1.8</target>
                    <fork>true</fork>                   
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <version>6.0.1</version>
                <configuration>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                </configuration>
            </plugin>
        </plugins>
    </build>

java版本

java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

mvn-版本

Apache Maven 3.1.1 (0728685237757ffbf44136acec0402957f723d9a; 2013-09-17 22:22:22+0700)
Maven home: E:\Programs\Maven3.1.1
Java version: 1.8.0_60, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.8.0_60\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"

环境：Eclipse Mars、Java 8 x64、Tomcat 7、Maven 3.2、Windows x64。

如何让它运行？？？

4

1 回答 1

4

这个

Caused by: java.io.IOException: invalid constant type: 18
at javassist.bytecode.ConstPool.readOne(ConstPool.java:1027)

绝对表明您正在使用无法理解类文件常量池中的 InvokeDynamic 标记的 javassist 版本运行。

根据类 ConstPool ，这个标签应该从 3.17 开始支持。

也许mvn -X会揭示实际使用的是哪个版本的 javassist。实际上，如果错误发生在mvn installjavassist 的版本不是由build.dependencies但你必须告诉使用 javassist 的 Maven 插件，使用它的最新版本。您应该检查哪个 maven 插件对应org.hibernate.ejb.packaging于堆栈跟踪中的 Java 包。然后将相应的依赖项（javassist）添加到该 maven 插件。

于 2015-10-06T19:36:39.957 回答