我刚刚用 maven (com.vaadin:vaadin-archetype-application@7.2.6) 开始了一个新的 vaadin 项目。
在默认的 MyVaadinUI.java
中,我用 lambda 表达式替换了 Butten.ClickListener()
,之后我在运行 package jetty 时遇到异常:运行
之前:
Button button = new Button("Click Me");
button.addClickListener(new Button.ClickListener() {
public void buttonClick(ClickEvent event) {
layout.addComponent(new Label("Thank you for clicking"));
}
});
layout.addComponent(button);
之后:
Button button = new Button("Click Me");
button.addClickListener(event -> layout.addComponent(new Label("Thank you for clicking")));
layout.addComponent(button);
异常(exception):
2014-08-26 13:23:30.069:WARN:oeja.AnnotationParser:EXCEPTION
java.lang.ArrayIndexOutOfBoundsException: 1612
at org.objectweb.asm.ClassReader.readClass(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.eclipse.jetty.annotations.AnnotationParser.scanClass(AnnotationParser.java:899)
at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:755)
at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:744)
at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:744)
at org.mortbay.jetty.plugin.MavenAnnotationConfiguration.doParse(MavenAnnotationConfiguration.java:73)
at org.mortbay.jetty.plugin.MavenAnnotationConfiguration.parseWebInfClasses(MavenAnnotationConfiguration.java:52)
at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:119)
at org.eclipse.jetty.webapp.WebAppContext.configure(WebAppContext.java:468)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1237)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:717)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:494)
at org.mortbay.jetty.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:298)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:229)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:172)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:229)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)
at org.eclipse.jetty.server.Server.doStart(Server.java:282)
at org.mortbay.jetty.plugin.JettyServer.doStart(JettyServer.java:65)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:520)
at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:365)
at org.mortbay.jetty.plugin.JettyRunMojo.execute(JettyRunMojo.java:523)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
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:483)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
at org.codehaus.classworlds.Launcher.main(Launcher.java:46)
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:483)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
我在 OSX 上使用 IntelliJ13.1 和 JDK8
最佳答案
我在 jetty 8.12.x
中部署应用程序时遇到了这个问题。
我通过升级到 jetty 9.2.x
解决了这个问题。 (是的,应用程序中使用了 lambda)
关于java - Lambda 表达式抛出异常,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/25504930/