java.lang.NoClassDefFoundError: com/google/gson/Gson

GitHub | philwebb | 4 months ago
  1. 0

    GitHub comment 6502#237055684

    GitHub | 4 months ago | philwebb
    java.lang.NoClassDefFoundError: com/google/gson/Gson
  2. 0

    Error startup when using Spring Cloud Discovery

    GitHub | 3 months ago | jiangyuhe123
    java.lang.NoClassDefFoundError: org/springframework/cloud/netflix/zuul/filters/TraceProxyRequestHelper
  3. 0

    Could not start Demo admin, java.lang.NoClassDefFoundError: org/springframework/cloud/netflix/zuul/filters/TraceProxyRequestHelper

    GitHub | 3 months ago | kala888
    java.lang.NoClassDefFoundError: org/springframework/cloud/netflix/zuul/filters/TraceProxyRequestHelper
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  5. 0

    Why this exception happens when start a spring boot admin application?

    Stack Overflow | 2 months ago | leo
    java.lang.NoClassDefFoundError: javax/servlet/ServletContextListener

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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    com.google.gson.Gson

    at java.net.URLClassLoader.findClass()
  2. Java RT
    Class.getDeclaredMethods
    1. java.net.URLClassLoader.findClass(URLClassLoader.java:381)[na:1.8.0_40]
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:424)[na:1.8.0_40]
    3. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)[na:1.8.0_40]
    4. java.lang.ClassLoader.loadClass(ClassLoader.java:357)[na:1.8.0_40]
    5. java.lang.Class.getDeclaredMethods0(Native Method)[na:1.8.0_40]
    6. java.lang.Class.privateGetDeclaredMethods(Class.java:2701)[na:1.8.0_40]
    7. java.lang.Class.getDeclaredMethods(Class.java:1975)[na:1.8.0_40]
    7 frames
  3. Spring Core
    ReflectionUtils.getUniqueDeclaredMethods
    1. org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:612)[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524)[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3. org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510)[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    4. org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:570)[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    4 frames
  4. Spring Beans
    DefaultListableBeanFactory.getBeansOfType
    1. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:683)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:627)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:597)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    4. org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1450)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    5. org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:447)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    6. org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:417)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    7. org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:532)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    8. org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:525)[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    8 frames
  5. Spring Context
    AbstractApplicationContext.getBeansOfType
    1. org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1184)[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    1 frame
  6. Spring Boot
    SpringApplication.run
    1. org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:885)[spring-boot-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    2. org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:871)[spring-boot-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    3. org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:857)[spring-boot-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    4. org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:809)[spring-boot-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    5. org.springframework.boot.SpringApplication.run(SpringApplication.java:324)[spring-boot-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    5 frames
  7. org.springframework.boot
    SpringBootContextLoader.loadContext
    1. org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:111)[spring-boot-test-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    1 frame
  8. org.springframework.test
    DefaultCacheAwareContextLoaderDelegate.loadContext
    1. org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2 frames
  9. Spring TestContext
    DependencyInjectionTestExecutionListener.prepareTestInstance
    1. org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3. org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3 frames
  10. org.springframework.boot
    AutoConfigureReportTestExecutionListener.prepareTestInstance
    1. org.springframework.boot.test.autoconfigure.AutoConfigureReportTestExecutionListener.prepareTestInstance(AutoConfigureReportTestExecutionListener.java:46)[spring-boot-test-autoconfigure-1.4.1.BUILD-SNAPSHOT.jar:1.4.1.BUILD-SNAPSHOT]
    1 frame
  11. Spring TestContext
    SpringJUnit4ClassRunner$1.runReflectiveCall
    1. org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3. org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3 frames
  12. JUnit
    ReflectiveCallable.run
    1. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)[junit-4.12.jar:4.12]
    1 frame
  13. Spring TestContext
    SpringJUnit4ClassRunner.runChild
    1. org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3. org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    3 frames
  14. JUnit
    ParentRunner$2.evaluate
    1. org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)[junit-4.12.jar:4.12]
    2. org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)[junit-4.12.jar:4.12]
    3. org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)[junit-4.12.jar:4.12]
    4. org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)[junit-4.12.jar:4.12]
    5. org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)[junit-4.12.jar:4.12]
    5 frames
  15. Spring TestContext
    RunAfterTestClassCallbacks.evaluate
    1. org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2. org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    2 frames
  16. JUnit
    ParentRunner.run
    1. org.junit.runners.ParentRunner.run(ParentRunner.java:363)[junit-4.12.jar:4.12]
    1 frame
  17. Spring TestContext
    SpringJUnit4ClassRunner.run
    1. org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)[spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    1 frame
  18. JUnit4 Runner
    JUnit4TestReference.run
    1. org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)[.cp/:na]
    1 frame
  19. JUnit3 Runner
    RemoteTestRunner.main
    1. org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)[.cp/:na]
    2. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)[.cp/:na]
    3. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)[.cp/:na]
    4. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)[.cp/:na]
    5. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)[.cp/:na]
    5 frames