问题
I created an starter project from spring tool suite with config shown below
when I run the App with changing of
@SpringBootApplication
@RestController
public class FirstApplication {
public static void main(String[] args) {
SpringApplication.run(FirstApplication.class, args);
}
@RequestMapping("/greet")
public String helloGreeting() {
return "Salam REST";
}
}
it crashes saying
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.2.6.RELEASE)
2015-10-03 08:18:45.362 INFO 4100 --- [ main] c.rhcloud.arshad.demo.FirstApplication : Starting FirstApplication on Arshad with PID 4100 (F:\Boot-work\first\target\classes started by Arshay in F:\Boot-work\first)
2015-10-03 08:18:45.487 INFO 4100 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@11f23e5: startup date [Sat Oct 03 08:18:45 PKT 2015]; root of context hierarchy
2015-10-03 08:18:46.732 INFO 4100 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2015-10-03 08:18:48.387 WARN 4100 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.NoClassDefFoundError: java/nio/charset/StandardCharsets
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:687)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:967)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:956)
at com.rhcloud.arshad.demo.FirstApplication.main(FirstApplication.java:13)
Caused by: java.lang.NoClassDefFoundError: java/nio/charset/StandardCharsets
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:331)
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:307)
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:292)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3073)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3050)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.addDefaultServlet(TomcatEmbeddedServletContainerFactory.java:199)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.prepareContext(TomcatEmbeddedServletContainerFactory.java:174)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:154)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:157)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
... 7 common frames omitted
Caused by: java.lang.ClassNotFoundException: java.nio.charset.StandardCharsets
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 17 common frames omitted
2015-10-03 08:18:48.391 INFO 4100 --- [ main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/F:/Boot-work/first/target/classes/, file:/F:/Boot-work/first/target/test-classes/, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot-starter-web/1.2.6.RELEASE/spring-boot-starter-web-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot-starter/1.2.6.RELEASE/spring-boot-starter-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot/1.2.6.RELEASE/spring-boot-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.2.6.RELEASE/spring-boot-autoconfigure-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot-starter-logging/1.2.6.RELEASE/spring-boot-starter-logging-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.12/jcl-over-slf4j-1.7.12.jar, file:/C:/Users/Arshay/.m2/repository/org/slf4j/slf4j-api/1.7.12/slf4j-api-1.7.12.jar, file:/C:/Users/Arshay/.m2/repository/org/slf4j/jul-to-slf4j/1.7.12/jul-to-slf4j-1.7.12.jar, file:/C:/Users/Arshay/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.12/log4j-over-slf4j-1.7.12.jar, file:/C:/Users/Arshay/.m2/repository/ch/qos/logback/logback-classic/1.1.3/logback-classic-1.1.3.jar, file:/C:/Users/Arshay/.m2/repository/ch/qos/logback/logback-core/1.1.3/logback-core-1.1.3.jar, file:/C:/Users/Arshay/.m2/repository/org/yaml/snakeyaml/1.14/snakeyaml-1.14.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/1.2.6.RELEASE/spring-boot-starter-tomcat-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/8.0.26/tomcat-embed-core-8.0.26.jar, file:/C:/Users/Arshay/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/8.0.26/tomcat-embed-el-8.0.26.jar, file:/C:/Users/Arshay/.m2/repository/org/apache/tomcat/embed/tomcat-embed-logging-juli/8.0.26/tomcat-embed-logging-juli-8.0.26.jar, file:/C:/Users/Arshay/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/8.0.26/tomcat-embed-websocket-8.0.26.jar, file:/C:/Users/Arshay/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.4.6/jackson-databind-2.4.6.jar, file:/C:/Users/Arshay/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.4.6/jackson-annotations-2.4.6.jar, file:/C:/Users/Arshay/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.4.6/jackson-core-2.4.6.jar, file:/C:/Users/Arshay/.m2/repository/org/hibernate/hibernate-validator/5.1.3.Final/hibernate-validator-5.1.3.Final.jar, file:/C:/Users/Arshay/.m2/repository/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar, file:/C:/Users/Arshay/.m2/repository/org/jboss/logging/jboss-logging/3.1.3.GA/jboss-logging-3.1.3.GA.jar, file:/C:/Users/Arshay/.m2/repository/com/fasterxml/classmate/1.0.0/classmate-1.0.0.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-core/4.1.7.RELEASE/spring-core-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-web/4.1.7.RELEASE/spring-web-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-aop/4.1.7.RELEASE/spring-aop-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-beans/4.1.7.RELEASE/spring-beans-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-context/4.1.7.RELEASE/spring-context-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-webmvc/4.1.7.RELEASE/spring-webmvc-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-expression/4.1.7.RELEASE/spring-expression-4.1.7.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/boot/spring-boot-starter-test/1.2.6.RELEASE/spring-boot-starter-test-1.2.6.RELEASE.jar, file:/C:/Users/Arshay/.m2/repository/junit/junit/4.12/junit-4.12.jar, file:/C:/Users/Arshay/.m2/repository/org/mockito/mockito-core/1.10.19/mockito-core-1.10.19.jar, file:/C:/Users/Arshay/.m2/repository/org/objenesis/objenesis/2.1/objenesis-2.1.jar, file:/C:/Users/Arshay/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar, file:/C:/Users/Arshay/.m2/repository/org/hamcrest/hamcrest-library/1.3/hamcrest-library-1.3.jar, file:/C:/Users/Arshay/.m2/repository/org/springframework/spring-test/4.1.7.RELEASE/spring-test-4.1.7.RELEASE.jar]
2015-10-03 08:18:48.393 ERROR 4100 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.NoClassDefFoundError: java/nio/charset/StandardCharsets
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:687)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:967)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:956)
at com.rhcloud.arshad.demo.FirstApplication.main(FirstApplication.java:13)
Caused by: java.lang.NoClassDefFoundError: java/nio/charset/StandardCharsets
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:331)
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:307)
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:292)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3073)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3050)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.addDefaultServlet(TomcatEmbeddedServletContainerFactory.java:199)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.prepareContext(TomcatEmbeddedServletContainerFactory.java:174)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:154)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:157)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
... 7 common frames omitted
Caused by: java.lang.ClassNotFoundException: java.nio.charset.StandardCharsets
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 17 common frames omitted
Exception in thread "main" org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.NoClassDefFoundError: java/nio/charset/StandardCharsets
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:687)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:967)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:956)
at com.rhcloud.arshad.demo.FirstApplication.main(FirstApplication.java:13)
Caused by: java.lang.NoClassDefFoundError: java/nio/charset/StandardCharsets
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:331)
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:307)
at org.apache.tomcat.util.buf.UDecoder.URLDecode(UDecoder.java:292)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3073)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3050)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.addDefaultServlet(TomcatEmbeddedServletContainerFactory.java:199)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.prepareContext(TomcatEmbeddedServletContainerFactory.java:174)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:154)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:157)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
... 7 more
Caused by: java.lang.ClassNotFoundException: java.nio.charset.StandardCharsets
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 17 more
what is wrong with this.
回答1:
Seems, that you use a wrong JRE to run this application. Make sure, that you running your it with Java version 1.7 or above, especially if you run it via some IDE. StandardCharsets, due to Java docs, is available since version 1.7.
来源：https://stackoverflow.com/questions/32918629/unable-to-start-embedded-container-nested-exception-is-java-lang-noclassdeffoun