java.lang.NoClassDefFoundError 问题求解答

自己做的小程序，引用百度地图的时候 出现的异常，我另外有个项目是导入的项目，里面也是有百度的SDK引用，同样的eclipse和ADT的版本，没有出现这个异常，试了网上的很多办法，没有能解决。求大神指教！

关于java.lang.NoClassDefFoundError的问题

同样的几行代码 放在同一工作台的不同项目中 引用相同的第三方jar包 有一个好用 有一个就会报java.lang.NoClassDefFoundError的错误 十分不解其原因 如果是因为classpath错误两个就都应该不好用啊 求大神解答一下 谢谢！！

java.lang.NoClassDefFoundError

 linux下使用jedis，运行目录如上图，Main.java内容： ``` import redis.clients.jedis.exceptions.*; import redis.clients.jedis.*; import redis.clients.util.*; import org.apache.commons.pool2.*; import org.apache.commons.pool2.proxy.*; import org.apache.commons.pool2.impl.*; public class Main{ public static void main(String[] args){ Jedis jedis = new Jedis("127.0.0.1",6379); jedis.set("s2","123"); String result = jedis.get("s2"); System.out.println(result); jedis.close(); } } ``` 进入该目录下执行 javac -cp jedis-2.7.0.jar:commons-pool2-2.3.jar: Main.java 编译成功，然后运行 java Main报错： Exception in thread "main" java.lang.NoClassDefFoundError: redis/clients/jedis/Jedis at Main.main(Main.java:20) Caused by: java.lang.ClassNotFoundException: redis.clients.jedis.Jedis at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 1 more 编译成功了，但是运行时却找不到类？还是说编译其实也有问题，在Main.java中已经把两个外部jar包的所有类都import了。查了网上不少资料了但是还是没解决，平常都用IDE的，这次试试用javac然后就这样了。求解答，谢谢。

java.lang.NoClassDefFoundError: Could not initialize class com.github.fommil.netlib.BLAS,到底是哪里出问题了，用的是R软件

本人不是专业搞代码的，对于这种问题有些专业术语可能看不懂 java.lang.NoClassDefFoundError: Could not initialize class com.github.fommil.netlib.BLAS 具体内容是，本人在学《机器学习与R语言》的第六章的一个例子，用到M5P函数，结果出现了如下图的情况。  有没有大神帮个忙解答一下

spring cloud zuul 使用注解@EnableZuulProxy项目启动报错，报java.lang.IllegalStateException！

自己搞的一个spring cloud 项目，在网关这里遇到了一个问题，在使用注解@EnableZuulProxy时项目不能启动且报错了，但是使用@EnableZuulServer注解启动一切正常。 报错信息如下： java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulCounterFactoryConfiguration.counterFactory at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:64) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:181) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE] at com.example.zhang.cloud.ZhangGetewayApplication.main(ZhangGetewayApplication.java:17) [classes/:na] Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulMetricsConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:507) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:404) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:389) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:447) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE] at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(Unknown Source) ~[na:1.8.0_101] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:738) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:679) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:647) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1518) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1023) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:195) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:159) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanType(BeanTypeRegistry.java:152) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:140) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at java.util.Iterator.forEachRemaining(Unknown Source) ~[na:1.8.0_101] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:135) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:97) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:298) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:289) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:278) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:189) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:125) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.1.5.RELEASE.jar:2.1.5.RELEASE] ... 17 common frames omitted Caused by: java.lang.NoClassDefFoundError: com/netflix/zuul/monitoring/CounterFactory at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_101] at java.lang.Class.privateGetDeclaredMethods(Unknown Source) ~[na:1.8.0_101] at java.lang.Class.getDeclaredMethods(Unknown Source) ~[na:1.8.0_101] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:489) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE] ... 39 common frames omitted Caused by: java.lang.ClassNotFoundException: com.netflix.zuul.monitoring.CounterFactory at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_101] at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_101] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_101] at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_101] ... 43 common frames omitted springboot版本：2.1.5.RELEASE springcloud版本：Finchley.SR1 依赖： <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-zuul</artifactId> </dependency> 哪位大神能解答一下，谢谢啦

debian10.2安装phpstorm2019.3.1时出现了问题，求大佬解答

debian 10.2 phpstorm 2019.3.1 在设置完环境变量后，运行phpstorm与直接进入文件目录执行./phpstorm.sh出现的都是这个问题，求各位大佬给个解决方法，万分感谢 另外我实在是莫得币子了，知识无价，学海无涯，有任何解决办法我都会去尝试，谢谢大家了 OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release. No protocol specified 2020-01-19 23:59:09,363 [ 2351] WARN - #com.intellij.idea.Main - java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable. java.util.concurrent.ExecutionException: java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable. at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999) at com.intellij.idea.StartupUtil.runInEdtAndWait(StartupUtil.java:678) at com.intellij.idea.StartupUtil.lambda$showUserAgreementAndConsentsIfNeeded$15(StartupUtil.java:673) at com.intellij.ui.AppUIUtil.showConsentsAgreementIfNeeded(AppUIUtil.java:332) at com.intellij.idea.StartupUtil.showUserAgreementAndConsentsIfNeeded(StartupUtil.java:673) at com.intellij.idea.StartupUtil.startApp(StartupUtil.java:231) at com.intellij.idea.StartupUtil.prepareApp(StartupUtil.java:213) at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:39) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable. at java.desktop/sun.awt.X11GraphicsEnvironment.initDisplay(Native Method) at java.desktop/sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:102) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.desktop/sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:61) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:315) at java.desktop/java.awt.GraphicsEnvironment$LocalGE.createGE(GraphicsEnvironment.java:101) at java.desktop/java.awt.GraphicsEnvironment$LocalGE.<clinit>(GraphicsEnvironment.java:83) at java.desktop/java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:129) at java.desktop/sun.awt.X11.XToolkit.<clinit>(XToolkit.java:232) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:315) at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:588) at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:583) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:582) at java.desktop/java.awt.Toolkit.getEventQueue(Toolkit.java:1499) at java.desktop/java.awt.EventQueue.invokeLater(EventQueue.java:1318) at com.intellij.idea.StartupUtil.lambda$scheduleInitUi$9(StartupUtil.java:265) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ... 1 more 2020-01-19 23:59:10,475 [ 3463] ERROR - tellij.diagnostic.LoadingState - Should be called at least in the state LAF_INITIALIZED, the current state is: BOOTSTRAP Current violators count: 1 java.lang.Throwable at com.intellij.diagnostic.LoadingState.logStateError(LoadingState.java:55) at com.intellij.diagnostic.LoadingState.checkOccurred(LoadingState.java:51) at com.intellij.util.ui.UIUtil.<clinit>(UIUtil.java:83) at com.intellij.ide.a.c.a.a(a.java:182) at com.intellij.ide.a.d.n.a(n.java:544) at com.intellij.ide.a.d.n.c(n.java:222) at com.intellij.ide.a.d.n.a(n.java:117) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at com.intellij.idea.MainImpl.start(MainImpl.java:94) at com.intellij.idea.StartupUtil.lambda$startApp$5(StartupUtil.java:246) at com.intellij.util.ui.EdtInvocationManager.executeWithCustomManager(EdtInvocationManager.java:73) at com.intellij.idea.StartupUtil.startApp(StartupUtil.java:241) at com.intellij.idea.StartupUtil.prepareApp(StartupUtil.java:213) at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:39) at java.base/java.lang.Thread.run(Thread.java:834) 2020-01-19 23:59:10,475 [ 3463] ERROR - tellij.diagnostic.LoadingState - PhpStorm 2019.3.1 Build #PS-193.5662.63 2020-01-19 23:59:10,476 [ 3464] ERROR - tellij.diagnostic.LoadingState - JDK: 11.0.5; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o 2020-01-19 23:59:10,476 [ 3464] ERROR - tellij.diagnostic.LoadingState - OS: Linux 2020-01-19 23:59:10,485 [ 3473] ERROR - tellij.diagnostic.LoadingState - Should be called at least in the state LAF_INITIALIZED, the current state is: BOOTSTRAP Current violators count: 2 java.lang.Throwable at com.intellij.diagnostic.LoadingState.logStateError(LoadingState.java:55) at com.intellij.diagnostic.LoadingState.checkOccurred(LoadingState.java:51) at com.intellij.openapi.util.registry.Registry.is(Registry.java:52) at com.intellij.util.ui.UIUtil.<clinit>(UIUtil.java:90) at com.intellij.ide.a.c.a.a(a.java:182) at com.intellij.ide.a.d.n.a(n.java:544) at com.intellij.ide.a.d.n.c(n.java:222) at com.intellij.ide.a.d.n.a(n.java:117) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at com.intellij.idea.MainImpl.start(MainImpl.java:94) at com.intellij.idea.StartupUtil.lambda$startApp$5(StartupUtil.java:246) at com.intellij.util.ui.EdtInvocationManager.executeWithCustomManager(EdtInvocationManager.java:73) at com.intellij.idea.StartupUtil.startApp(StartupUtil.java:241) at com.intellij.idea.StartupUtil.prepareApp(StartupUtil.java:213) at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:39) at java.base/java.lang.Thread.run(Thread.java:834) 2020-01-19 23:59:10,486 [ 3474] ERROR - tellij.diagnostic.LoadingState - PhpStorm 2019.3.1 Build #PS-193.5662.63 2020-01-19 23:59:10,486 [ 3474] ERROR - tellij.diagnostic.LoadingState - JDK: 11.0.5; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o 2020-01-19 23:59:10,486 [ 3474] ERROR - tellij.diagnostic.LoadingState - OS: Linux 2020-01-19 23:59:10,540 [ 3528] ERROR - llij.ide.plugins.PluginManager - Could not initialize class sun.awt.X11.XToolkit java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:315) at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:588) at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:583) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:582) at java.desktop/sun.swing.SwingUtilities2.getSystemMnemonicKeyMask(SwingUtilities2.java:2210) at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.initComponentDefaults(BasicLookAndFeel.java:1096) at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.initComponentDefaults(MetalLookAndFeel.java:440) at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.getDefaults(BasicLookAndFeel.java:150) at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:1560) at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:592) at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:634) at java.desktop/javax.swing.UIManager.initializeDefaultLAF(UIManager.java:1409) at java.desktop/javax.swing.UIManager.initialize(UIManager.java:1522) at java.desktop/javax.swing.UIManager.maybeInitialize(UIManager.java:1488) at java.desktop/javax.swing.UIManager.getDefaults(UIManager.java:714) at java.desktop/javax.swing.UIManager.getFont(UIManager.java:727) at com.intellij.ui.scale.JBUIScale.lambda$static$0(JBUIScale.java:47) at com.intellij.openapi.util.AtomicNotNullLazyValue$1.compute(AtomicNotNullLazyValue.java:59) at com.intellij.openapi.util.AtomicNotNullLazyValue.getValue(AtomicNotNullLazyValue.java:37) at com.intellij.ui.scale.JBUIScale.lambda$static$1(JBUIScale.java:152) at com.intellij.util.LazyInitializer$MutableNotNullValue.initialize(LazyInitializer.java:113) at com.intellij.util.LazyInitializer$NullableValue.get(LazyInitializer.java:41) at com.intellij.util.LazyInitializer$MutableNotNullValue.get(LazyInitializer.java:102) at com.intellij.ui.scale.JBUIScale.lambda$static$2(JBUIScale.java:170) at com.intellij.util.LazyInitializer$MutableNotNullValue.initialize(LazyInitializer.java:113) at com.intellij.util.LazyInitializer$NullableValue.get(LazyInitializer.java:41) at com.intellij.util.LazyInitializer$MutableNotNullValue.get(LazyInitializer.java:102) at com.intellij.ui.scale.JBUIScale.scale(JBUIScale.java:294) at com.intellij.util.ui.JBInsets.create(JBInsets.java:41) at com.intellij.util.ui.UIUtil.<clinit>(UIUtil.java:457) at com.intellij.ide.a.c.a.a(a.java:182) at com.intellij.ide.a.d.n.a(n.java:544) at com.intellij.ide.a.d.n.c(n.java:222) at com.intellij.ide.a.d.n.a(n.java:117) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at com.intellij.idea.MainImpl.start(MainImpl.java:94) at com.intellij.idea.StartupUtil.lambda$startApp$5(StartupUtil.java:246) at com.intellij.util.ui.EdtInvocationManager.executeWithCustomManager(EdtInvocationManager.java:73) at com.intellij.idea.StartupUtil.startApp(StartupUtil.java:241) at com.intellij.idea.StartupUtil.prepareApp(StartupUtil.java:213) at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:39) at java.base/java.lang.Thread.run(Thread.java:834) 2020-01-19 23:59:10,542 [ 3530] ERROR - llij.ide.plugins.PluginManager - PhpStorm 2019.3.1 Build #PS-193.5662.63 2020-01-19 23:59:10,543 [ 3531] ERROR - llij.ide.plugins.PluginManager - JDK: 11.0.5; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o 2020-01-19 23:59:10,543 [ 3531] ERROR - llij.ide.plugins.PluginManager - OS: Linux Start Failed: Internal error. Please refer to http://jb.gg/ide/critical-startup-errors java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:315) at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:588) at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:583) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:582) at java.desktop/sun.swing.SwingUtilities2.getSystemMnemonicKeyMask(SwingUtilities2.java:2210) at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.initComponentDefaults(BasicLookAndFeel.java:1096) at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.initComponentDefaults(MetalLookAndFeel.java:440) at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.getDefaults(BasicLookAndFeel.java:150) at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:1560) at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:592) at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:634) at java.desktop/javax.swing.UIManager.initializeDefaultLAF(UIManager.java:1409) at java.desktop/javax.swing.UIManager.initialize(UIManager.java:1522) at java.desktop/javax.swing.UIManager.maybeInitialize(UIManager.java:1488) at java.desktop/javax.swing.UIManager.getDefaults(UIManager.java:714) at java.desktop/javax.swing.UIManager.getFont(UIManager.java:727) at com.intellij.ui.scale.JBUIScale.lambda$static$0(JBUIScale.java:47) at com.intellij.openapi.util.AtomicNotNullLazyValue$1.compute(AtomicNotNullLazyValue.java:59) at com.intellij.openapi.util.AtomicNotNullLazyValue.getValue(AtomicNotNullLazyValue.java:37) at com.intellij.ui.scale.JBUIScale.lambda$static$1(JBUIScale.java:152) at com.intellij.util.LazyInitializer$MutableNotNullValue.initialize(LazyInitializer.java:113) at com.intellij.util.LazyInitializer$NullableValue.get(LazyInitializer.java:41) at com.intellij.util.LazyInitializer$MutableNotNullValue.get(LazyInitializer.java:102) at com.intellij.ui.scale.JBUIScale.lambda$static$2(JBUIScale.java:170) at com.intellij.util.LazyInitializer$MutableNotNullValue.initialize(LazyInitializer.java:113) at com.intellij.util.LazyInitializer$NullableValue.get(LazyInitializer.java:41) at com.intellij.util.LazyInitializer$MutableNotNullValue.get(LazyInitializer.java:102) at com.intellij.ui.scale.JBUIScale.scale(JBUIScale.java:294) at com.intellij.util.ui.JBInsets.create(JBInsets.java:41) at com.intellij.util.ui.UIUtil.<clinit>(UIUtil.java:457) at com.intellij.ide.a.c.a.a(a.java:182) at com.intellij.ide.a.d.n.a(n.java:544) at com.intellij.ide.a.d.n.c(n.java:222) at com.intellij.ide.a.d.n.a(n.java:117) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at com.intellij.idea.MainImpl.start(MainImpl.java:94) at com.intellij.idea.StartupUtil.lambda$startApp$5(StartupUtil.java:246) at com.intellij.util.ui.EdtInvocationManager.executeWithCustomManager(EdtInvocationManager.java:73) at com.intellij.idea.StartupUtil.startApp(StartupUtil.java:241) at com.intellij.idea.StartupUtil.prepareApp(StartupUtil.java:213) at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:39) at java.base/java.lang.Thread.run(Thread.java:834) ----- JRE 11.0.5+10-b520.17 amd64 by JetBrains s.r.o /home/PhpStorm-193.5662.63/jbr Also, a UI exception occurred on an attempt to show the above message: java.lang.NoClassDefFoundError: Could not initialize class java.awt.GraphicsEnvironment$LocalGE at java.desktop/java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:129) at java.desktop/javax.swing.RepaintManager.<clinit>(RepaintManager.java:243) at java.desktop/javax.swing.JComponent.repaint(JComponent.java:4835) at java.desktop/java.awt.Component.repaint(Component.java:3412) at java.desktop/javax.swing.text.JTextComponent.setEditable(JTextComponent.java:1818) at java.desktop/javax.swing.text.JTextComponent.<init>(JTextComponent.java:323) at java.desktop/javax.swing.JEditorPane.<init>(JEditorPane.java:198) at java.desktop/javax.swing.JTextPane.<init>(JTextPane.java:87) at com.intellij.idea.Main.showMessage(Main.java:212) at com.intellij.idea.Main.showMessage(Main.java:188) at com.intellij.ide.plugins.StartupAbortedException.processException(StartupAbortedException.java:78) at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:42) at java.base/java.lang.Thread.run(Thread.java:834)

springboot gradle项目build成功，但是bootrun的时候失败了，折腾半天了，没有解决问题，跪求大神解答

> Task :app-ygrs-weixin:bootRun FAILED D:\IdeaProjects\microrada\app-ygrs-weixin\build\libs\app-ygrs-weixin-pathing.jar java.lang.NoClassDefFoundError: javax/servlet/Filter at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.privateGetMethodRecursive(Class.java:3048) at java.lang.Class.getMethod0(Class.java:3018) at java.lang.Class.getMethod(Class.java:1784) at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:650) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:632) Caused by: java.lang.ClassNotFoundException: javax.servlet.Filter at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 7 more Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" FAILURE: Build failed with an exception.

简单的java 运行发送邮件出错了

Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/MessagingException at com.sd.send.SendMail.send(SendMail.java:15) at com.sd.send.SendMail.main(SendMail.java:43) Caused by: java.lang.ClassNotFoundException: javax.mail.MessagingException 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) ... 2 more 求大神解答

使用IDEA是报错Error: A JNI error has occurred, please check your installation and try again？

我使用IDEA建了个普通java工程可以正常运行，不报错，但是我使用maven建了一个spring工程，直接报错 ## 普通java工程这样的，运行也正常 ##  ## # 但是我建spring工程的时候，运行就报错  完整报错是这样的 ``` java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContext at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.privateGetMethodRecursive(Class.java:3048) at java.lang.Class.getMethod0(Class.java:3018) at java.lang.Class.getMethod(Class.java:1784) at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526) Caused by: java.lang.ClassNotFoundException: org.springframework.context.ApplicationContext at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 7 more Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" ``` 求大神解答，好几天，搜了好多方法，都没用

Android Studio中使用JUnit测试报错（ClassNotFoundException）

在Android Studio中编写测试类public class MyAppTest extends ActivityInstrumentationTestCase2报错： Exception in thread "main" java.lang.NoClassDefFoundError: junit/textui/ResultPrinter Caused by: java.lang.ClassNotFoundException: junit.textui.ResultPrinter 小的新手，求大神解答 T T

Linux下安装Android Studio出错，求大神解答！

**JDK都配置好了，运行** ``` zoegreen@zoegreen-Lenovo-IdeaPad-Y470:/opt/android-studio/bin$ java -version java version "1.7.0_51" Java(TM) SE Runtime Environment (build 1.7.0_51-b13) Java HotSpot(TM) Server VM (build 24.51-b03, mixed mode) ``` **但在最后一步执行./studio.sh时不能打开studio，出现以下错误：** ``` zoegreen@zoegreen-Lenovo-IdeaPad-Y470:/opt/android-studio/bin$ sudo ./studio.sh [sudo] password for zoegreen: Start Failed: Internal error. Please report to https://code.google.com/p/android/issues java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.ide.Bootstrap.main(Bootstrap.java:39) at com.intellij.idea.Main.main(Main.java:83) Caused by: java.lang.UnsatisfiedLinkError: /usr/lib/jvm/jdk1.7.0_51/jre/lib/i386/xawt/libmawt.so: libXtst.so.6: 错误 ELF 类: ELFCLASS64 at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851) at java.lang.Runtime.load0(Runtime.java:795) at java.lang.System.load(System.java:1062) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1872) at java.lang.Runtime.loadLibrary0(Runtime.java:849) at java.lang.System.loadLibrary(System.java:1088) at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:67) at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:47) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Toolkit.loadLibraries(Toolkit.java:1646) at java.awt.Toolkit.<clinit>(Toolkit.java:1668) at java.awt.Cursor.<clinit>(Cursor.java:195) at javax.swing.text.html.HTMLEditorKit.<clinit>(HTMLEditorKit.java:624) at com.intellij.util.ui.UIUtil.<clinit>(UIUtil.java:96) at com.intellij.ide.plugins.PluginManager.start(PluginManager.java:71) ... 6 more Also, an UI exception occurred on attempt to show above message: java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit at java.awt.Component.<clinit>(Component.java:595) at com.intellij.idea.Main.showMessage(Main.java:231) at com.intellij.idea.Main.showMessage(Main.java:217) at com.intellij.idea.Main.main(Main.java:86) ```

Linux下安装Android Studio出错，求大神解答！

**JDK都配置好了，运行** ``` zoegreen@zoegreen-Lenovo-IdeaPad-Y470:/opt/android-studio/bin$ java -version java version "1.7.0_51" Java(TM) SE Runtime Environment (build 1.7.0_51-b13) Java HotSpot(TM) Server VM (build 24.51-b03, mixed mode) ``` **但在最后一步执行./studio.sh时不能打开studio，出现以下错误：** ``` zoegreen@zoegreen-Lenovo-IdeaPad-Y470:/opt/android-studio/bin$ ./studio.sh Start Failed: Internal error. Please report to https://code.google.com/p/android/issues java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.ide.Bootstrap.main(Bootstrap.java:39) at com.intellij.idea.Main.main(Main.java:83) Caused by: java.lang.UnsatisfiedLinkError: /usr/lib/jvm/jdk1.7.0_51/jre/lib/i386/xawt/libmawt.so: libXtst.so.6: 无法打开共享对象文件: 没有那个文件或目录 at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851) at java.lang.Runtime.load0(Runtime.java:795) at java.lang.System.load(System.java:1062) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1872) at java.lang.Runtime.loadLibrary0(Runtime.java:849) at java.lang.System.loadLibrary(System.java:1088) at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:67) at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:47) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Toolkit.loadLibraries(Toolkit.java:1646) at java.awt.Toolkit.<clinit>(Toolkit.java:1668) at java.awt.Cursor.<clinit>(Cursor.java:195) at javax.swing.text.html.HTMLEditorKit.<clinit>(HTMLEditorKit.java:624) at com.intellij.util.ui.UIUtil.<clinit>(UIUtil.java:96) at com.intellij.ide.plugins.PluginManager.start(PluginManager.java:71) ... 6 more Also, an UI exception occurred on attempt to show above message: java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit at java.awt.Component.<clinit>(Component.java:595) at com.intellij.idea.Main.showMessage(Main.java:231) at com.intellij.idea.Main.showMessage(Main.java:217) at com.intellij.idea.Main.main(Main.java:86) ```

[jacoco] 找不到类 "org.jacoco.agent.rt.RT"，求解答

使用android stuido进行功能测试代码覆盖率统计。 jacoco应该是gradle自带的一个插件。但是运行的时候提示找不到对应的类。自己创建一个hello world项目进行测试又很正常。 build.gradle中配置如下： apply plugin: 'jacoco' buildTypes { debug { testCoverageEnabled = true ... } } 报错如下： D/JacocoInstrumentation:(22005): java.lang.ClassNotFoundException: org.jacoco.agent.rt.RT D/JacocoInstrumentation:(22005): at java.lang.Class.classForName(Native Method) D/JacocoInstrumentation:(22005): at java.lang.Class.forName(Class.java:309) D/JacocoInstrumentation:(22005): at java.lang.Class.forName(Class.java:273) D/JacocoInstrumentation:(22005): at com.inveno.xiaozhi.test.JacocoInstrumentation.generateCoverageReport(JacocoInstrumentation.java:88) D/JacocoInstrumentation:(22005): at com.inveno.xiaozhi.test.JacocoInstrumentation.onActivityFinished(JacocoInstrumentation.java:139) D/JacocoInstrumentation:(22005): at com.inveno.xiaozhi.test.InstrumentedActivity.onDestroy(InstrumentedActivity.java:24) D/JacocoInstrumentation:(22005): at android.app.Activity.performDestroy(Activity.java:6271) D/JacocoInstrumentation:(22005): at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1148) D/JacocoInstrumentation:(22005): at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3962) D/JacocoInstrumentation:(22005): at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3993) D/JacocoInstrumentation:(22005): at android.app.ActivityThread.access$1400(ActivityThread.java:178) D/JacocoInstrumentation:(22005): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1524) D/JacocoInstrumentation:(22005): at android.os.Handler.dispatchMessage(Handler.java:111) D/JacocoInstrumentation:(22005): at android.os.Looper.loop(Looper.java:194) D/JacocoInstrumentation:(22005): at android.app.ActivityThread.main(ActivityThread.java:5637) D/JacocoInstrumentation:(22005): at java.lang.reflect.Method.invoke(Native Method) D/JacocoInstrumentation:(22005): at java.lang.reflect.Method.invoke(Method.java:372) D/JacocoInstrumentation:(22005): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959) D/JacocoInstrumentation:(22005): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754) D/JacocoInstrumentation:(22005): Caused by: java.lang.ClassNotFoundException: Didn't find class "org.jacoco.agent.rt.RT" on path: DexPathList[[zip file "/data/app/coms file "/data/app/com.hotoday.news-1/b", zip file "/data/app/com.hotoday.news-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.hotoday.news-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]] D/JacocoInstrumentation:(22005): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) D/JacocoInstrumentation:(22005): at java.lang.ClassLoader.loadClass(ClassLoader.java:511) D/JacocoInstrumentation:(22005): at java.lang.ClassLoader.loadClass(ClassLoader.java:469) D/JacocoInstrumentation:(22005): ... 19 more D/JacocoInstrumentation:(22005): Suppressed: java.lang.ClassNotFoundException: org.jacoco.agent.rt.RT D/JacocoInstrumentation:(22005): at java.lang.Class.classForName(Native Method) D/JacocoInstrumentation:(22005): at java.lang.BootClassLoader.findClass(ClassLoader.java:781) D/JacocoInstrumentation:(22005): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841) D/JacocoInstrumentation:(22005): at java.lang.ClassLoader.loadClass(ClassLoader.java:504) D/JacocoInstrumentation:(22005): ... 20 more D/JacocoInstrumentation:(22005): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

java测试类一直报错，求解答

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