<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://github.com/apache/incubator-dubbo/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have checked the <a href="https://github.com/apache/incubator-dubbo/blob/master/FAQ.md">FAQ</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h3 dir="auto">Environment</h3>
<ul dir="auto">
<li>Dubbo version: 2.7.1</li>
<li>Operating System version: Win10</li>
<li>Java version: 1.8</li>
</ul>
<h3 dir="auto">Steps to reproduce this issue</h3>
<ol dir="auto">
<li>maven project dependency include artifactId(dubbo-filter-cache)</li>
<li>Start a Provider service</li>
</ol>
<h3 dir="auto">Expected Result</h3>
<p dir="auto">The program start without errors</p>
<h3 dir="auto">Actual Result</h3>
<p dir="auto">适配CacheFactory代码编译失败：<br>
Adaptive code is generate by class "org.apache.dubbo.common.extension.AdaptiveClassCodeGenerator", that it make an error method adaptive code.</p>
<p dir="auto">If there is an exception, please attach the exception trace:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="2019-04-22 17:54:24.754 [main] ERROR org.apache.dubbo.common.extension.ExtensionLoader -  [DUBBO] Failed to inject via method setCacheFactory of interface org.apache.dubbo.rpc.Filter: Failed to create adaptive instance: java.lang.IllegalStateException: Can't create adaptive extension interface org.apache.dubbo.cache.CacheFactory, cause: Failed to compile class, cause: [source error] no such field: invocation, class: org.apache.dubbo.cache.CacheFactory$Adaptive, code: 
package org.apache.dubbo.cache;
import org.apache.dubbo.common.extension.ExtensionLoader;
public class CacheFactory$Adaptive implements org.apache.dubbo.cache.CacheFactory {
public org.apache.dubbo.cache.Cache getCache(org.apache.dubbo.common.URL arg0, org.apache.dubbo.rpc.Invocation arg1)  {
if (arg0 == null) throw new IllegalArgumentException(&quot;url == null&quot;);
org.apache.dubbo.common.URL url = arg0;
if (arg1 == null) throw new IllegalArgumentException(&quot;invocation == null&quot;); String methodName = arg1.getMethodName();
String extName = url.getMethodParameter(methodName, &quot;cache&quot;, &quot;lru&quot;);
if(extName == null) throw new IllegalStateException(&quot;Failed to get extension (org.apache.dubbo.cache.CacheFactory) name from url (&quot; + url.toString() + &quot;) use keys([cache])&quot;);
org.apache.dubbo.cache.CacheFactory extension = (org.apache.dubbo.cache.CacheFactory)ExtensionLoader.getExtensionLoader(org.apache.dubbo.cache.CacheFactory.class).getExtension(extName);
return extension.getCache(url, invocation);
}
}
, stack: javassist.CannotCompileException: [source error] no such field: invocation

javassist.CannotCompileException: [source error] no such field: invocation
	at javassist.CtNewMethod.make(CtNewMethod.java:79)
	at javassist.CtNewMethod.make(CtNewMethod.java:45)
	at org.apache.dubbo.common.compiler.support.CtClassBuilder.build(CtClassBuilder.java:168)
	at org.apache.dubbo.common.compiler.support.JavassistCompiler.doCompile(JavassistCompiler.java:82)
	at org.apache.dubbo.common.compiler.support.AbstractCompiler.compile(AbstractCompiler.java:59)
	at org.apache.dubbo.common.compiler.support.AdaptiveCompiler.compile(AdaptiveCompiler.java:45)
	at org.apache.dubbo.common.extension.ExtensionLoader.createAdaptiveExtensionClass(ExtensionLoader.java:859)
	at org.apache.dubbo.common.extension.ExtensionLoader.getAdaptiveExtensionClass(ExtensionLoader.java:852)
	at org.apache.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:841)
	at org.apache.dubbo.common.extension.ExtensionLoader.getAdaptiveExtension(ExtensionLoader.java:478)
	at org.apache.dubbo.common.extension.factory.SpiExtensionFactory.getExtension(SpiExtensionFactory.java:33)
	at org.apache.dubbo.common.extension.factory.AdaptiveExtensionFactory.getExtension(AdaptiveExtensionFactory.java:47)
	at org.apache.dubbo.common.extension.ExtensionLoader.injectExtension(ExtensionLoader.java:562)
	at org.apache.dubbo.common.extension.ExtensionLoader.createExtension(ExtensionLoader.java:531)
	at org.apache.dubbo.common.extension.ExtensionLoader.getExtension(ExtensionLoader.java:347)
	at org.apache.dubbo.common.extension.ExtensionLoader.getActivateExtension(ExtensionLoader.java:225)
	at org.apache.dubbo.common.extension.ExtensionLoader.getActivateExtension(ExtensionLoader.java:192)
	at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.buildInvokerChain(ProtocolFilterWrapper.java:49)
	at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:108)
	at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
	at org.apache.dubbo.registry.integration.RegistryProtocol.lambda$2(RegistryProtocol.java:220)
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
	at org.apache.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:218)
	at org.apache.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:184)
	at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:55)
	at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:106)
	at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
	at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:559)
	at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:417)
	at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:375)
	at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:337)
	at org.apache.dubbo.config.spring.ServiceBean.export(ServiceBean.java:319)
	at org.apache.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:113)
	at org.apache.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:1)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359)
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:896)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
	at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:144)
	at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:85)
	at com.ccesun.rhpf.regi.provider.RmiEnvInitServiceTest.testServiceStart(RmiEnvInitServiceTest.java:28)
	at com.ccesun.rhpf.regi.provider.RmiEnvInitServiceTest.main(RmiEnvInitServiceTest.java:41)
Caused by: compile error: no such field: invocation
	at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:845)
	at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:803)
	at javassist.compiler.TypeChecker.atMember(TypeChecker.java:988)
	at javassist.compiler.JvstTypeChecker.atMember(JvstTypeChecker.java:66)
	at javassist.compiler.ast.Member.accept(Member.java:39)
	at javassist.compiler.JvstTypeChecker.atMethodArgs(JvstTypeChecker.java:221)
	at javassist.compiler.TypeChecker.atMethodCallCore(TypeChecker.java:735)
	at javassist.compiler.TypeChecker.atCallExpr(TypeChecker.java:695)
	at javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:157)
	at javassist.compiler.ast.CallExpr.accept(CallExpr.java:46)
	at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:242)
	at javassist.compiler.CodeGen.compileExpr(CodeGen.java:229)
	at javassist.compiler.CodeGen.atReturnStmnt2(CodeGen.java:615)
	at javassist.compiler.JvstCodeGen.atReturnStmnt(JvstCodeGen.java:425)
	at javassist.compiler.CodeGen.atStmnt(CodeGen.java:363)
	at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50)
	at javassist.compiler.CodeGen.atStmnt(CodeGen.java:351)
	at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50)
	at javassist.compiler.CodeGen.atMethodBody(CodeGen.java:292)
	at javassist.compiler.CodeGen.atMethodDecl(CodeGen.java:274)
	at javassist.compiler.ast.MethodDecl.accept(MethodDecl.java:44)
	at javassist.compiler.Javac.compileMethod(Javac.java:169)
	at javassist.compiler.Javac.compile(Javac.java:95)
	at javassist.CtNewMethod.make(CtNewMethod.java:74)
	... 44 more"><pre class="notranslate"><code class="notranslate">2019-04-22 17:54:24.754 [main] ERROR org.apache.dubbo.common.extension.ExtensionLoader -  [DUBBO] Failed to inject via method setCacheFactory of interface org.apache.dubbo.rpc.Filter: Failed to create adaptive instance: java.lang.IllegalStateException: Can't create adaptive extension interface org.apache.dubbo.cache.CacheFactory, cause: Failed to compile class, cause: [source error] no such field: invocation, class: org.apache.dubbo.cache.CacheFactory$Adaptive, code: 
package org.apache.dubbo.cache;
import org.apache.dubbo.common.extension.ExtensionLoader;
public class CacheFactory$Adaptive implements org.apache.dubbo.cache.CacheFactory {
public org.apache.dubbo.cache.Cache getCache(org.apache.dubbo.common.URL arg0, org.apache.dubbo.rpc.Invocation arg1)  {
if (arg0 == null) throw new IllegalArgumentException("url == null");
org.apache.dubbo.common.URL url = arg0;
if (arg1 == null) throw new IllegalArgumentException("invocation == null"); String methodName = arg1.getMethodName();
String extName = url.getMethodParameter(methodName, "cache", "lru");
if(extName == null) throw new IllegalStateException("Failed to get extension (org.apache.dubbo.cache.CacheFactory) name from url (" + url.toString() + ") use keys([cache])");
org.apache.dubbo.cache.CacheFactory extension = (org.apache.dubbo.cache.CacheFactory)ExtensionLoader.getExtensionLoader(org.apache.dubbo.cache.CacheFactory.class).getExtension(extName);
return extension.getCache(url, invocation);
}
}
, stack: javassist.CannotCompileException: [source error] no such field: invocation

javassist.CannotCompileException: [source error] no such field: invocation
	at javassist.CtNewMethod.make(CtNewMethod.java:79)
	at javassist.CtNewMethod.make(CtNewMethod.java:45)
	at org.apache.dubbo.common.compiler.support.CtClassBuilder.build(CtClassBuilder.java:168)
	at org.apache.dubbo.common.compiler.support.JavassistCompiler.doCompile(JavassistCompiler.java:82)
	at org.apache.dubbo.common.compiler.support.AbstractCompiler.compile(AbstractCompiler.java:59)
	at org.apache.dubbo.common.compiler.support.AdaptiveCompiler.compile(AdaptiveCompiler.java:45)
	at org.apache.dubbo.common.extension.ExtensionLoader.createAdaptiveExtensionClass(ExtensionLoader.java:859)
	at org.apache.dubbo.common.extension.ExtensionLoader.getAdaptiveExtensionClass(ExtensionLoader.java:852)
	at org.apache.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:841)
	at org.apache.dubbo.common.extension.ExtensionLoader.getAdaptiveExtension(ExtensionLoader.java:478)
	at org.apache.dubbo.common.extension.factory.SpiExtensionFactory.getExtension(SpiExtensionFactory.java:33)
	at org.apache.dubbo.common.extension.factory.AdaptiveExtensionFactory.getExtension(AdaptiveExtensionFactory.java:47)
	at org.apache.dubbo.common.extension.ExtensionLoader.injectExtension(ExtensionLoader.java:562)
	at org.apache.dubbo.common.extension.ExtensionLoader.createExtension(ExtensionLoader.java:531)
	at org.apache.dubbo.common.extension.ExtensionLoader.getExtension(ExtensionLoader.java:347)
	at org.apache.dubbo.common.extension.ExtensionLoader.getActivateExtension(ExtensionLoader.java:225)
	at org.apache.dubbo.common.extension.ExtensionLoader.getActivateExtension(ExtensionLoader.java:192)
	at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.buildInvokerChain(ProtocolFilterWrapper.java:49)
	at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:108)
	at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
	at org.apache.dubbo.registry.integration.RegistryProtocol.lambda$2(RegistryProtocol.java:220)
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
	at org.apache.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:218)
	at org.apache.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:184)
	at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:55)
	at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:106)
	at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
	at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:559)
	at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:417)
	at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:375)
	at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:337)
	at org.apache.dubbo.config.spring.ServiceBean.export(ServiceBean.java:319)
	at org.apache.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:113)
	at org.apache.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:1)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359)
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:896)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
	at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:144)
	at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:85)
	at com.ccesun.rhpf.regi.provider.RmiEnvInitServiceTest.testServiceStart(RmiEnvInitServiceTest.java:28)
	at com.ccesun.rhpf.regi.provider.RmiEnvInitServiceTest.main(RmiEnvInitServiceTest.java:41)
Caused by: compile error: no such field: invocation
	at javassist.compiler.TypeChecker.fieldAccess(TypeChecker.java:845)
	at javassist.compiler.TypeChecker.atFieldRead(TypeChecker.java:803)
	at javassist.compiler.TypeChecker.atMember(TypeChecker.java:988)
	at javassist.compiler.JvstTypeChecker.atMember(JvstTypeChecker.java:66)
	at javassist.compiler.ast.Member.accept(Member.java:39)
	at javassist.compiler.JvstTypeChecker.atMethodArgs(JvstTypeChecker.java:221)
	at javassist.compiler.TypeChecker.atMethodCallCore(TypeChecker.java:735)
	at javassist.compiler.TypeChecker.atCallExpr(TypeChecker.java:695)
	at javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:157)
	at javassist.compiler.ast.CallExpr.accept(CallExpr.java:46)
	at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:242)
	at javassist.compiler.CodeGen.compileExpr(CodeGen.java:229)
	at javassist.compiler.CodeGen.atReturnStmnt2(CodeGen.java:615)
	at javassist.compiler.JvstCodeGen.atReturnStmnt(JvstCodeGen.java:425)
	at javassist.compiler.CodeGen.atStmnt(CodeGen.java:363)
	at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50)
	at javassist.compiler.CodeGen.atStmnt(CodeGen.java:351)
	at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50)
	at javassist.compiler.CodeGen.atMethodBody(CodeGen.java:292)
	at javassist.compiler.CodeGen.atMethodDecl(CodeGen.java:274)
	at javassist.compiler.ast.MethodDecl.accept(MethodDecl.java:44)
	at javassist.compiler.Javac.compileMethod(Javac.java:169)
	at javassist.compiler.Javac.compile(Javac.java:95)
	at javassist.CtNewMethod.make(CtNewMethod.java:74)
	... 44 more
</code></pre></div>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have searched the <a href="https://github.com/apache/incubator-dubbo/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have checked the <a href="https://github.com/apache/incubator-dubbo/blob/master/FAQ.md">FAQ</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h3 dir="auto">Environment</h3>
<ul dir="auto">
<li>Dubbo version: 2.5.3</li>
<li>Operating System version: Linux version 2.6.32-573.22.1.el6.x86_64 (<a href="mailto:mockbuild@c6b8.bsys.dev.centos.org">mockbuild@c6b8.bsys.dev.centos.org</a>) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC) ) <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="5423124" data-permission-text="Title is private" data-url="https://github.com/apache/dubbo/issues/1" data-hovercard-type="pull_request" data-hovercard-url="/apache/dubbo/pull/1/hovercard" href="https://github.com/apache/dubbo/pull/1">#1</a> SMP Wed Mar 23 03:35:39 UTC 2016</li>
<li>Java version: java version "1.8.0_162"</li>
</ul>
<h3 dir="auto">Steps to reproduce this issue</h3>
<ol dir="auto">
<li>call api throw null exception</li>
</ol>
<p dir="auto">What actually happens?</p>
<p dir="auto">If there is an exception, please attach the exception trace:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="java.lang.NullPointerExceptionat sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)at java.lang.reflect.Constructor.newInstance(Constructor.java:423)at com.alibaba.com.caucho.hessian.io.JavaDeserializer.instantiate(JavaDeserializer.java:271)at com.alibaba.com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:155)at com.alibaba.com.caucho.hessian.io.SerializerFactory.readObject(SerializerFactory.java:397)at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObjectInstance(Hessian2Input.java:2070)at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:2005)at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1990)at com.alibaba.dubbo.common.serialize.support.hessian.Hessian2ObjectInput.readObject(Hessian2ObjectInput.java:88)at com.alibaba.dubbo.rpc.protocol.dubbo.DecodeableRpcResult.decode(DecodeableRpcResult.java:92)at com.alibaba.dubbo.rpc.protocol.dubbo.DecodeableRpcResult.decode(DecodeableRpcResult.java:109)at com.alibaba.dubbo.rpc.protocol.dubbo.DubboCodec.decodeBody(DubboCodec.java:97)at com.alibaba.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:126)at com.alibaba.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:87)at com.alibaba.dubbo.rpc.protocol.dubbo.DubboCountCodec.decode(DubboCountCodec.java:46)at com.alibaba.dubbo.remoting.transport.netty.NettyCodecAdapter$InternalDecoder.messageReceived(NettyCodecAdapter.java:134)at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274)at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)at java.lang.Thread.run(Thread.java:748)"><pre class="notranslate"><code class="notranslate">java.lang.NullPointerExceptionat sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)at java.lang.reflect.Constructor.newInstance(Constructor.java:423)at com.alibaba.com.caucho.hessian.io.JavaDeserializer.instantiate(JavaDeserializer.java:271)at com.alibaba.com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:155)at com.alibaba.com.caucho.hessian.io.SerializerFactory.readObject(SerializerFactory.java:397)at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObjectInstance(Hessian2Input.java:2070)at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:2005)at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1990)at com.alibaba.dubbo.common.serialize.support.hessian.Hessian2ObjectInput.readObject(Hessian2ObjectInput.java:88)at com.alibaba.dubbo.rpc.protocol.dubbo.DecodeableRpcResult.decode(DecodeableRpcResult.java:92)at com.alibaba.dubbo.rpc.protocol.dubbo.DecodeableRpcResult.decode(DecodeableRpcResult.java:109)at com.alibaba.dubbo.rpc.protocol.dubbo.DubboCodec.decodeBody(DubboCodec.java:97)at com.alibaba.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:126)at com.alibaba.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:87)at com.alibaba.dubbo.rpc.protocol.dubbo.DubboCountCodec.decode(DubboCountCodec.java:46)at com.alibaba.dubbo.remoting.transport.netty.NettyCodecAdapter$InternalDecoder.messageReceived(NettyCodecAdapter.java:134)at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274)at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)at java.lang.Thread.run(Thread.java:748)
</code></pre></div>