Error 500 Java.lang.verifyerror
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would like to know what is meant by binary incompatibility, refer to my older post java.lang.IncompatibleClassChangeError.In this post i have explained three reasons upon which this Verify Error is thrown. Before explaining this error,i would like to tell you something about how a java program gets executed.When ever we compile a program,the byte codes are formed.Before executing these byte codes,they are preprocessed by a ByteCodeVerifier.The ByteCode Verfier examines the byte codes,to check is there any statement that violates the semantics of java.If any such statements are found then this verify error https://examples.javacodegeeks.com/java-basics/exceptions/java-lang-verifyerror-how-to-solve-verifyerror/ will be thrown. Here i have presented you three reasons upon which this error may occur as follows. Reason 1: "Whenever we try to extend a class which is declared as final then this error will be thrown". Have a look at the following program to understand this reason. Program: class B extends A{public static void main(String args[]){System.out.println("my super class name:-"+myname);}} public class A{static http://craftingjava.blogspot.com/2012/08/3-reasons-for-javalangverfiyerror.html String myname="A";} As you see if you compile this two programs and execute it,it must have to work fine without showing any error. Now I am going to change the class A as follows and compile it alone. Note that here i have recompiled the "class A" alone.Now if i execute the class B (class that contains main() method) then an error message like below will be thrown at run-time. final public class A { static String myname="A"; } Exception in thread "main" java.lang.VerifyError: Cannot inherit from final class at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source)Could not find the main class: B. Program will exit. Reason 2: "Consider a class that extends an other class before and if it no longer extends that class now,then this error may be thrown at run-time."Look at the following program to see how the second reason causes this error. Program: class C extends B{public static void main(String args[]){B b=new B();display(b);}public static void disp
Error Occurs with WebSphere Application Server using IBM Technology for JVM https://community.oracle.com/thread/3671720 error messages; Java; JDK; WAS Technote (troubleshooting) Problem(Abstract) This document will describe an issue where error 500 a "java.lang.VerifyError: JVMVRFY013 class loading constraint violated" error occurs with WebSphere Application Server using IBM Technology for JVM when accessing a WSDL exposed by Axis2. Resolving the problem Problem When accessing error 500 java.lang.verifyerror a Web application within WebSphere Application Server using the IBM Technology for JVM and Apache Axis2 framework with an application server/WAR class loader order set to PARENT_LAST, the following error might be encountered: java.lang.VerifyError: class loading constraint violated (class: org/apache/xerces/dom/CoreDocumentImpl method: getDomConfig()Lorg/w3c/dom/DOMConfiguration;) at pc: 0 at java.lang.J9VMInternals.verifyImpl(Native Method) at java.lang.J9VMInternals.verify(J9VMInternals.java:69) at java.lang.J9VMInternals.verify(J9VMInternals.java:67) at java.lang.J9VMInternals.verify(J9VMInternals.java:67) at java.lang.J9VMInternals.initialize(J9VMInternals.java:131) at org.apache.xerces.parsers.AbstractDOMParser.startDocument(Unknown Source) at org.apache.xerces.impl.dtd.XMLDTDValidator.startDocument(Unknown Source) at org.apache.xerces.impl.XMLDocumentScannerImpl.startEntity(Unknown Source) at org.apache.xerces.impl.XMLVersionDetector.startDocumentParsing(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.DOMParser.parse(Unknown Source) at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source) at javax.xml.parsers.DocumentBuilder.parse(Unknown Source) at org.apache.log4j.xml.DOMConfigurator$2.parse(DOMConfigurator.java:690) at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:789) at org.apache.log4
Speaker BureauLog inRegisterSearchSearchCancelError: You don't have JavaScript enabled. This tool uses JavaScript and much of it will not work correctly without it enabled. Please turn JavaScript back on and reload this page. Please enter a title. You can not post a blank message. Please type your message and try again. More discussions in Generics All PlacesJavaJava APIsGenerics This discussion is archived 1 Reply Latest reply on Feb 10, 2015 3:48 AM by 2880403 java.lang.VerifyError: Bad type on operand stack under Generics and Inheritance 2880403 Feb 9, 2015 3:17 AM 11:08:03,251 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-3) MSC00001: Failed to start service jboss.deployment.subunit."tdabs_external.ear"."tdabs_external.war".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.subunit."tdabs_external.ear"."tdabs_external.war".POST_MODULE: Failed to process phase POST_MODULE of subdeployment "tdabs_external.war" of deployment "tdabs_external.ear" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_67] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_67] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_67]Caused by: java.lang.RuntimeException: Error getting reflective information for class td.abs.external.servlet.GetTimeslotListBySearch with ClassLoader ModuleClassLoader for Module "deployment.tdabs_external.ear.tdabs_external.war:main" from Service Module Loader at org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:70) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] at org.jboss.as.ee.metadata.MethodAnnotationAggregator.runtimeAnnotationInformation(MethodAnnotationAggregator.java:58) at org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.handleAnnotations(InterceptorAnnotationProcessor.java:85) at org.jboss.as.ee.component.deployers.Intercep