Encountered an occasional deadlock problem

[shichaoyuan]

Java 8
Skywalking Agent 8.15

SkywalkingAgent-8-ServiceManagementClientKafkaProducer-0
own lock locked <0x00000006950092b8> (a sun.net.www.protocol.jar.JarFileFactory)
try acquire waiting to lock <0x0000000694d2f6b0> (a sun.nio.cs.StandardCharsets)

main
own lock locked <0x0000000694d2f6b0> (a sun.nio.cs.StandardCharsets)
try acquire waiting to lock <0x00000006950092b8> (a sun.net.www.protocol.jar.JarFileFactory)

"SkywalkingAgent-8-ServiceManagementClientKafkaProducer-0":
        at sun.nio.cs.FastCharsetProvider.charsetForName(FastCharsetProvider.java:133)
        - waiting to lock <0x0000000694d2f6b0> (a sun.nio.cs.StandardCharsets)
        at java.nio.charset.Charset.lookup2(Charset.java:475)
        at java.nio.charset.Charset.lookup(Charset.java:464)
        at java.nio.charset.Charset.isSupported(Charset.java:505)
        at java.lang.StringCoding.lookupCharset(StringCoding.java:99)
        at java.lang.StringCoding.decode(StringCoding.java:185)
        at java.lang.String.<init>(String.java:426)
        at java.lang.String.<init>(String.java:491)
        at java.io.UnixFileSystem.canonicalize0(Native Method)
        at java.io.UnixFileSystem.canonicalize(UnixFileSystem.java:172)
        at java.io.File.getCanonicalPath(File.java:626)
        at java.io.FilePermission$1.run(FilePermission.java:248)
        at java.io.FilePermission$1.run(FilePermission.java:236)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.io.FilePermission.init(FilePermission.java:236)
        at java.io.FilePermission.<init>(FilePermission.java:310)
        at sun.net.www.protocol.file.FileURLConnection.getPermission(FileURLConnection.java:225)
        at sun.net.www.protocol.jar.JarFileFactory.getPermission(JarFileFactory.java:156)
        at sun.net.www.protocol.jar.JarFileFactory.getCachedJarFile(JarFileFactory.java:126)
        at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:81)
        - locked <0x00000006950092b8> (a sun.net.www.protocol.jar.JarFileFactory)
        at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
        at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:152)
        at java.net.URL.openStream(URL.java:1068)
        at org.apache.skywalking.apm.agent.core.plugin.loader.AgentClassLoader.findClass(AgentClassLoader.java:105)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
        - locked <0x0000000690ee0eb0> (a java.lang.Object)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
        at org.apache.skywalking.apm.agent.core.kafka.KafkaServiceManagementServiceClient.run(KafkaServiceManagementServiceClient.java:95)
        at org.apache.skywalking.apm.util.RunnableWithExceptionProtection.run(RunnableWithExceptionProtection.java:33)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

"main":
        at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:80)
        - waiting to lock <0x00000006950092b8> (a sun.net.www.protocol.jar.JarFileFactory)
        at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
        at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:152)
        at java.net.URLClassLoader.getResourceAsStream(URLClassLoader.java:239)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.ClassFileLocator$ForClassLoader.locate(ClassFileLocator.java:453)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.ClassFileLocator$ForClassLoader.locate(ClassFileLocator.java:434)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.ClassFileLocator$Compound.locate(ClassFileLocator.java:1891)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.pool.TypePool$Default.doDescribe(TypePool.java:839)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.pool.TypePool$Default$WithLazyResolution.access$001(TypePool.java:921)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.pool.TypePool$Default$WithLazyResolution.doResolve(TypePool.java:1019)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.pool.TypePool$Default$WithLazyResolution$LazyTypeDescription.delegate(TypePool.java:1088)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.description.type.TypeDescription$AbstractBase$OfSimpleType$WithDelegation.getInterfaces(TypeDescription.java:8442)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.description.type.TypeDescription$Generic$OfParameterizedType.getInterfaces(TypeDescription.java:5004)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.description.type.TypeDescription$Generic$LazyProjection$WithEagerNavigation.getInterfaces(TypeDescription.java:6579)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.HasSuperTypeMatcher.doMatch(HasSuperTypeMatcher.java:67)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.HasSuperTypeMatcher.doMatch(HasSuperTypeMatcher.java:32)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.ElementMatcher$Junction$ForNonNullValues.matches(ElementMatcher.java:249)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.ElementMatcher$Junction$Conjunction.matches(ElementMatcher.java:146)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.ElementMatcher$Junction$Disjunction.matches(ElementMatcher.java:214)
        at org.apache.skywalking.apm.agent.core.plugin.match.ProtectiveShieldMatcher.matches(ProtectiveShieldMatcher.java:47)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RawMatcher$ForElementMatchers.matches(AgentBuilder.java:1871)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.doTransform(AgentBuilder.java:12083)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:12041)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.access$1800(AgentBuilder.java:11758)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$LegacyVmDispatcher.run(AgentBuilder.java:12441)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$LegacyVmDispatcher.run(AgentBuilder.java:12381)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.doPrivileged(AgentBuilder.java)
        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:11950)
        at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
        at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:348)
        at sun.nio.cs.FastCharsetProvider.lookup(FastCharsetProvider.java:118)
        at sun.nio.cs.FastCharsetProvider.charsetForName(FastCharsetProvider.java:133)
        - locked <0x0000000694d2f6b0> (a sun.nio.cs.StandardCharsets)
        at java.nio.charset.Charset.lookup2(Charset.java:475)
        at java.nio.charset.Charset.lookup(Charset.java:464)
        at java.nio.charset.Charset.forName(Charset.java:528)
        at com.mysql.cj.MysqlCharset.<init>(CharsetMapping.java:712)
        at com.mysql.cj.MysqlCharset.<init>(CharsetMapping.java:693)
        at com.mysql.cj.CharsetMapping.<clinit>(CharsetMapping.java:115)
        at com.mysql.cj.protocol.AuthenticationProvider.getCharsetForHandshake(AuthenticationProvider.java:77)
        at com.mysql.cj.protocol.a.NativeAuthenticationProvider.createHandshakeResponsePacket(NativeAuthenticationProvider.java:613)
        at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:461)
        at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:174)
        at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1350)
        at com.mysql.cj.NativeSession.connect(NativeSession.java:157)
        at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953)
        at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823)
        - locked <0x000000069181c088> (a com.mysql.cj.jdbc.ConnectionImpl)
        at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453)
        at com.mysql.cj.jdbc.ConnectionImpl.getInstance$original$ViQWTfvx(ConnectionImpl.java:246)
        at com.mysql.cj.jdbc.ConnectionImpl.getInstance$original$ViQWTfvx$accessor$yYTgp0pX(ConnectionImpl.java)
        at com.mysql.cj.jdbc.ConnectionImpl$auxiliary$GkT6zwzw.call(Unknown Source)
        at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.StaticMethodsInter.intercept(StaticMethodsInter.java:83)
        at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java)
        at com.mysql.cj.jdbc.NonRegisteringDriver.connect$original$KhHNSR8s(NonRegisteringDriver.java:198)
        at com.mysql.cj.jdbc.NonRegisteringDriver.connect$original$KhHNSR8s$accessor$9xMaLGPL(NonRegisteringDriver.java)
        at com.mysql.cj.jdbc.NonRegisteringDriver$auxiliary$NeBoRtm2.call(Unknown Source)
        at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
        at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java)
        at com.mysql.cj.jdbc.Driver.connect$accessor$Ljnmx4vW(Driver.java)
        at com.mysql.cj.jdbc.Driver$auxiliary$YTrYm86s.call(Unknown Source)
        at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
        at com.mysql.cj.jdbc.Driver.connect(Driver.java)
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1644)
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
        at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:923)
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1383)
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1379)
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:109)
        at com.immomo.mysql.proxy.config.datanodes.DataSourceFactory.initConn(DataSourceFactory.java:320)
        at com.immomo.mysql.proxy.config.datanodes.DataSourceFactory.createDataSource(DataSourceFactory.java:253)
        at com.immomo.mysql.proxy.config.datanodes.DataSourceFactory.getOrCreateDataSource(DataSourceFactory.java:96)
        - locked <0x0000000691857a10> (a java.util.concurrent.ConcurrentHashMap)
        at com.immomo.mysql.proxy.config.datanodes.impl.ZookeeperMysqlDataNodesImpl.createInstanceConnection(ZookeeperMysqlDataNodesImpl.java:385)
        at com.immomo.mysql.proxy.config.datanodes.impl.ZookeeperMysqlDataNodesImpl.initClusterAndPool0(ZookeeperMysqlDataNodesImpl.java:85)
        at com.immomo.mysql.proxy.config.datanodes.impl.AbstractMysqlDataNodes.initClusterAndPool(AbstractMysqlDataNodes.java:95)
        at com.immomo.mysql.proxy.config.context.MysqlClusterContextFactory.loadZookeeperClusterContext(MysqlClusterContextFactory.java:189)
        at com.immomo.mysql.proxy.config.context.MysqlClusterContextFactory.loadClusterContext(MysqlClusterContextFactory.java:79)
        - locked <0x00000006918594e8> (a java.lang.Class for com.immomo.mysql.proxy.config.context.MysqlClusterContextFactory)
        at com.immomo.mysql.proxy.core.datasource.AbstractDataSourceWrapper.<init>(AbstractDataSourceWrapper.java:69)
        at com.immomo.mysql.proxy.core.datasource.AbstractDataSourceWrapper.<init>(AbstractDataSourceWrapper.java:56)
        at com.immomo.mysql.proxy.core.datasource.AbstractDataSourceWrapper.<init>(AbstractDataSourceWrapper.java:51)
        at com.immomo.mysql.proxy.core.datasource.MasterSlaveDataSourceWrapper.<init>(MasterSlaveDataSourceWrapper.java:26)
        at com.immomo.mysql.proxy.spring.autoconfigure.MysqlProxyAutoConfiguration.masterSlaveDataSourceWrapper(MysqlProxyAutoConfiguration.java:52)
        at com.immomo.mysql.proxy.spring.autoconfigure.MysqlProxyAutoConfiguration$$EnhancerBySpringCGLIB$$9698ec52.CGLIB$masterSlaveDataSourceWrapper$1(<generated>)
        at com.immomo.mysql.proxy.spring.autoconfigure.MysqlProxyAutoConfiguration$$EnhancerBySpringCGLIB$$9698ec52$$FastClassBySpringCGLIB$$86a79b68.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
        at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331)
        at com.immomo.mysql.proxy.spring.autoconfigure.MysqlProxyAutoConfiguration$$EnhancerBySpringCGLIB$$9698ec52.masterSlaveDataSourceWrapper(<generated>)
        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:498)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$351/753625249.getObject(Unknown Source)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        - locked <0x0000000695847b38> (a java.util.concurrent.ConcurrentHashMap)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$351/753625249.getObject(Unknown Source)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        - locked <0x0000000695847b38> (a java.util.concurrent.ConcurrentHashMap)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1598)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1562)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1451)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1338)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$351/753625249.getObject(Unknown Source)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        - locked <0x0000000695847b38> (a java.util.concurrent.ConcurrentHashMap)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582)
        - locked <0x0000000695fdaa28> (a java.lang.Object)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:326)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)
        at com.immomo.hertz.mts.room.components.MomoApplication.main(MomoApplication.java:10)

[shichaoyuan]

Should we ignore classes starting with sun. in AgentBuilder.Default(byteBuddy).ignore?

        at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:11950)
        at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
        at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:348)
        at sun.nio.cs.FastCharsetProvider.lookup(FastCharsetProvider.java:118)
        at sun.nio.cs.FastCharsetProvider.charsetForName(FastCharsetProvider.java:133)
        - locked <0x0000000694d2f6b0> (a sun.nio.cs.StandardCharsets)
        at java.nio.charset.Charset.lookup2(Charset.java:475)
        at java.nio.charset.Charset.lookup(Charset.java:464)
        at java.nio.charset.Charset.forName(Charset.java:528)

[wu-sheng]

There are plugins for JVM rt.jar, such as sun.net.www.http.HttpClient.

[shichaoyuan]

maybe?

nameStartsWith("sun.").and(not(nameStartsWith("sun.net.www.http.HttpClient")))

[wu-sheng]

Why does this impact? I think this is the key.