java.io.IOException: invalid constant type: 18 问题

本文分析了在使用JDK1.8环境下遇到的javassist包异常问题,指出原因是由于javassist版本过低导致,并提供了两种解决方案:一是使用较低版本的JDK,二是将javassist升级到3.18及以上版本。
Caused by: java.lang.RuntimeException: java.io.IOException: invalid constant type: 18
 at javassist.CtClassType.getClassFile2(CtClassType.java:203)
 at javassist.CtClassType.subtypeOf(CtClassType.java:303)
 at javassist.CtClassType.subtypeOf(CtClassType.java:318)
 at javassist.compiler.MemberResolver.compareSignature(MemberResolver.java:247)
 at javassist.compiler.MemberResolver.lookupMethod(MemberResolver.java:119)
 at javassist.compiler.MemberResolver.lookupMethod(MemberResolver.java:96)
 at javassist.compiler.TypeChecker.atMethodCallCore(TypeChecker.java:704)
 at javassist.expr.NewExpr$ProceedForNew.setReturnType(NewExpr.java:243)
 at javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:146)
 at javassist.compiler.ast.CallExpr.accept(CallExpr.java:45)
 at javassist.compiler.TypeChecker.atVariableAssign(TypeChecker.java:248)
 at javassist.compiler.TypeChecker.atAssignExpr(TypeChecker.java:217)
 at javassist.compiler.ast.AssignExpr.accept(AssignExpr.java:38)
 at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:241)
 at javassist.compiler.CodeGen.atStmnt(CodeGen.java:329)
 at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
 at javassist.compiler.CodeGen.atStmnt(CodeGen.java:350)
 at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
 at javassist.compiler.CodeGen.atIfStmnt(CodeGen.java:404)
 at javassist.compiler.CodeGen.atStmnt(CodeGen.java:354)
 at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
 at javassist.compiler.Javac.compileStmnt(Javac.java:568)
 at javassist.expr.NewExpr.replace(NewExpr.java:206)
 at org.powermock.core.transformers.impl.MainMockTransformer$PowerMockExpressionEditor.edit(MainMockTransformer.java:427)
 at javassist.expr.ExprEditor.loopBody(ExprEditor.java:211)
 at javassist.expr.ExprEditor.doit(ExprEditor.java:90)
 at javassist.CtClassType.instrument(CtClassType.java:1289)
 at org.powermock.core.transformers.impl.MainMockTransformer.transform(MainMockTransformer.java:74)
 at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:243)
 ... 29 more
Caused by: java.io.IOException: invalid constant type: 18
 at javassist.bytecode.ConstPool.readOne(ConstPool.java:1023)
 at javassist.bytecode.ConstPool.read(ConstPool.java:966)
 at javassist.bytecode.ConstPool.<init>(ConstPool.java:127)
 at javassist.bytecode.ClassFile.read(ClassFile.java:693)
 at javassist.bytecode.ClassFile.<init>(ClassFile.java:85)
 at javassist.CtClassType.getClassFile2(CtClassType.java:190)
 ... 57 more

发现javassist包出现这个奇怪的错误。通过分析,发现javassist 是一个动态生成字节码的开源库,由于我使用的是jdk1.8.

原因:javassist 3.18以下的版本不支持在JDK1.8下运行,详情点击.

解决方法有两个:

1 使用JDK1.7或者以下版本.

2 升级javassist 到3.18或以上版本.


转载于:https://my.oschina.net/syso4yy/blog/531169

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nested exception is java.io.FileNotFoundException: class path resource [com/smics/apps/bdcs/mail_content.xml] cannot be opened because it does not exist java.io.FileNotFoundException: class path resource [com/smics/apps/bdcs/mail_content.xml] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:127) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:131) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:99) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:114) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:82) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:87) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:262) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:131) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:224) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:150) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:48) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)什么原因
最新发布
09-04
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