I don't know how the method getCurrentSession() working in javaBean which be used at servlet
I have configed hibernate sessionFactory at applicationContext.xml,and 'current_session_context_class' at hibernate.cfg.xml.
this is my service bean:
#Service()
public class serviceDao{
#Autowired
private sessionFactory sessionFactory;
public session getSession(){
return sessionFactory.getCurrentSession();
}
public void startTransaction(){
getSession().beginTransaction();
}
public void submitTransaction(){
getSession().getTransaction().commit();
}
public void doSomething(){
getSession.createQuery("...");
......
}
}
this is servlet
public class CommentAction extends HttpServlet {
private serviceDao serviceDao;
#Override
public void init() throws ServletException {
super.init();
ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
serviceDao = (serviceDao) context.getBean("serviceDao");
}
public void doPost(){
serviceDao.startTransaction();
serviceDao.doSomething();
serviceDao.submitTransaction();
}
}
If the servlet processes 10 requests in a row, it will report an error.
09-Nov-2019 23:19:11.206 [http-nio-8080-exec-123] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [commentAction] in context with path [] threw exception
java.lang.IllegalStateException: Transaction already active
at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:74)
at org.hibernate.internal.AbstractSharedSessionContract.beginTransaction(AbstractSharedSessionContract.java:467)
at sun.reflect.GeneratedMethodAccessor251.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:350)
at com.sun.proxy.$Proxy358.beginTransaction(Unknown Source)
at com.qiang.dao.serviceDao.startTransaction(serviceDao.java:28)
at com.qiang.dao.serviceDao$$FastClassBySpringCGLIB$$19d44572.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671)
at com.qiang.dao.serviceDao$$EnhancerBySpringCGLIB$$71a65c7d.startTransaction(<generated>)
at com.qiang.servlet.CommentAction.doPost(CommentAction.java:35)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.qiang.servlet.LoginFilter.doFilter(LoginFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Hello you can check the java documentations , explaining clearly what is the real problem
public class IllegalStateException
extends RuntimeException
Signals that a method has been invoked at an illegal or inappropriate time. In other words, the Java environment or Java application is not in an appropriate state for the requested operation.
Since:
JDK1.1
See Also:
Serialized Form
enter link description here
Related
I have gone through many post related to ConstraintViolationException on StackOverflow but couldn't get any help. I am using Spring Boot v2.3.3 web application with spring-boot-starter-validation. I want to validate a password using a custom annotation for Cross-Parameter Constraints. In order to do that, I have followed this Baeldung link. Below is the implementation class which inherits ConstraintValidator:
#SupportedValidationTarget(PARAMETERS)
public class ValidPasswordValidator implements ConstraintValidator<ValidPassword, Object[]> {
private ValidateRequestTypeEnum requestType;
#Autowired
private PasswordValidatorService passwordValidatorService;
#Override
public void initialize(ValidPassword constraintAnnotation) {
this.requestType = constraintAnnotation.requestType();
SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this);
}
#Override
public boolean isValid(Object[] value, ConstraintValidatorContext context) {
SomeUser someUser = (SomeUser) value[0];
try {
passwordValidatorService.validate(someUser, this.requestType);
} catch (ConstraintViolationException e) {
context.disableDefaultConstraintViolation();
context.buildConstraintViolationWithTemplate(e.getMessage()).addConstraintViolation();
return false; // If this is turned true then no exception is thrown
}
return true;
}
}
Now whenever I return false in the isValid() method, I get the ConstraintViolationException, even after handling it in the catch block. The behaviour remains the same even if I throw a different Exception and handle it in the catch block.
Below are my other class implementaions and stacktrace. Any help will be greatly appreciated.
ValidPassword Annotation:
#Constraint(validatedBy = ValidPasswordValidator.class)
#Target({METHOD, CONSTRUCTOR})
#Retention(RUNTIME)
#Documented
public #interface ValidPassword {
String message() default "";
ValidateRequestTypeEnum requestType();
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
Controller class:
#Validated
#RestController
public class SomeController {
#ValidPassword(requestType = CREATE_USER)
#GetMapping("/create-user")
public void createUser(#RequestBody SomeUser someUser) {
System.out.println("Create User Mapping");
System.out.println(someUser.toString());
}
}
SomeUser Model class:
public class SomeUser {
private int id;
private String name;
private String password;
// getters and setters abbreviated
// toString() abbreviated
}
PasswordValidatorService:
public interface PasswordValidatorService {
void validate(SomeUser someUser, ValidateRequestTypeEnum requestType) throws ConstraintViolationException;
}
PasswordLengthValidatorImpl:
#Service
public class PasswordLengthValidatorImpl implements PasswordValidatorService {
#Override
public void validate(SomeUser someUser, ValidateRequestTypeEnum requestType) throws ConstraintViolationException {
switch (requestType) {
case CREATE_USER:
System.out.println("From Create_User block");
if (someUser.getPassword().length() < 8) {
throw new ConstraintViolationException("Password length less than 8", new HashSet<>());
}
break;
default:
System.out.println("---Default switch block---");
}
}
}
Stacktrace:
javax.validation.ConstraintViolationException: createUser.<cross-parameter>: Password length less than 8
at org.springframework.validation.beanvalidation.MethodValidationInterceptor.invoke(MethodValidationInterceptor.java:116) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at com.sam.springdroolspersistence.controller.SomeController$$EnhancerBySpringCGLIB$$dbaf428.createUser(<generated>) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_291]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_291]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_291]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_291]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.37.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.37.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) [tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.37.jar:9.0.37]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_291]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_291]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.37.jar:9.0.37]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_291]
Now whenever I return false in the isValid() method, I get the
ConstraintViolationException, even after handling it in the catch
block. The behaviour remains the same even if I throw a different
Exception and handle it in the catch block.
You can actually try this out in an IDE debugger ( like eclipse) and follow the validation path.
The isValid method of ConstraintValidator is a contract between validation engine and your constraint validation logic. If it fails it has to return false.
The actual code that handles it is in org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree
The stack trace you are seeing is not what you have thrown and caught - rather it's internally generated in org.springframework.validation.beanvalidation.MethodValidationInterceptor
I am getting this error while sending out mail from my project.
Applications I was using are:
Eclipse IDE
Apache Tomcat
Here is the error
```Servlet.service() for servlet [controler.ForgotPassword] in context with path [/Banking_App] threw exception [Servlet execution threw an exception] with root cause
java.lang.ClassNotFoundException: com.sun.activation.registries.LogSupport
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
at javax.activation.MailcapCommandMap.<init>(MailcapCommandMap.java:179)
at javax.activation.CommandMap.getDefaultCommandMap(CommandMap.java:85)
at javax.activation.DataHandler.getCommandMap(DataHandler.java:167)
at javax.activation.DataHandler.getDataContentHandler(DataHandler.java:629)
at javax.activation.DataHandler.writeTo(DataHandler.java:329)
at javax.mail.internet.MimeUtility.getEncoding(MimeUtility.java:340)
at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1575)
at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2271)
at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2231)
at javax.mail.Transport.send(Transport.java:123)
at controler.ForgotPassword.service(ForgotPassword.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:830)
Jul 17, 2020 7:28:31 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [controler.ForgotPassword] in context with path [/Banking_App] threw exception [Servlet execution threw an exception] with root cause
java.lang.NoClassDefFoundError: com/sun/activation/registries/LogSupport
at javax.activation.MailcapCommandMap.<init>(MailcapCommandMap.java:179)
at javax.activation.CommandMap.getDefaultCommandMap(CommandMap.java:85)
at javax.activation.DataHandler.getCommandMap(DataHandler.java:167)
at javax.activation.DataHandler.getDataContentHandler(DataHandler.java:629)
at javax.activation.DataHandler.writeTo(DataHandler.java:329)
at javax.mail.internet.MimeUtility.getEncoding(MimeUtility.java:340)
at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1575)
at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2271)
at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2231)
at javax.mail.Transport.send(Transport.java:123)
at controler.ForgotPassword.service(ForgotPassword.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:830)```
Here is the java class from where it will send the mail:-
"ForgotPassword.java"
```#WebServlet("/ForgotPassword")
public class ForgotPassword extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* #see HttpServlet#HttpServlet()
*/
public ForgotPassword() {
super();
// TODO Auto-generated constructor stub
}
/**
* #see HttpServlet#service(HttpServletRequest request, HttpServletResponse response)
*/
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String email=request.getParameter("email");
HttpSession session1=request.getSession(true);
session1.setAttribute("email",email);
String fromEmail="abc#gmail.com";
String psw="XYZ";
String subject="DO NOT REPLY: Mail from Java Program";
String msg="Hi, Click this link to reset your password "
+ "http://localhost:3030/Banking_App/resetPassWord.jsp";
Properties prop=new Properties();
prop.put("mail.smtp.host","smtp.gmail.com");
prop.put("mail.smtp.port", 587);
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.starttls.enable", "true");
Session session= Session.getDefaultInstance(prop
, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(fromEmail, psw);
}
}
);
try {
MimeMessage mesg=new MimeMessage(session);
mesg.setFrom(new InternetAddress(fromEmail));
mesg.addRecipient(Message.RecipientType.TO, new InternetAddress(email));
mesg.setSubject(subject);
mesg.setText(msg);
Transport.send(mesg);
System.out.println("Mail Sent!!");
response.sendRedirect("/Banking_App/forgotPassWordSuccessful.jsp");
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
}```
I was trying to send a link through this mail for resetting the password, where I used two jar files and deploy them in project
javax.mail
javax.activation
Thank you in advance.
Try adding this dependency and see if it works:
Gradle:
implementation 'com.sun.activation:javax.activation:1.2.0'
Maven:
<dependency>
<groupId>com.sun.activation</groupId>
<artifactId>javax.activation</artifactId>
<version>1.2.0</version>
</dependency>
You can also read this article for more info.
Error:- Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
2020-03-18 21:53:10.748 ERROR 8140 --- [nio-8181-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException: null
at com.czx.promanage.controller.UserController.getUserByNameOrEmail(UserController.java:21) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) ~[druid-1.1.12.jar:1.1.12]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.31.jar:9.0.31]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_191]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.31.jar:9.0.31]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_191]
Bean package: com.czx.promanage.bean
package com.czx.promanage.Bean;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
#Data
#AllArgsConstructor
#NoArgsConstructor
#Builder
public class User {
private Long id;
private String name;
private String nickname;
private String email;
private String password;
}
Mapper package: com.czx.promanage.mapper
package com.czx.promanage.mapper;
import com.czx.promanage.Bean.User;
import org.apache.ibatis.annotations.*;
import org.springframework.stereotype.Repository;
import java.util.List;
#Repository
#Mapper
public interface UserMapper {
/**
* get user by name or email
*
* #param str username/email
* #return user
* */
#Select("select * from users where email = #{str} or name = #{str}")
User getUserByNameOrEmail(String str);
}
Service package: com.czx.promanage.service
package com.czx.promanage.service;
import com.czx.promanage.Bean.User;
public interface Userservice {
User getUserByNameOrEmail(String str);
}
Impl package: com.czx.promanage.service.impl
package com.czx.promanage.service.impl;
import com.czx.promanage.Bean.User;
import com.czx.promanage.mapper.UserMapper;
import com.czx.promanage.service.Userservice;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
#Service
public class UserServiceImpl implements Userservice {
#Autowired
public UserMapper userMapper;
#Override
public User getUserByNameOrEmail(String str) {
return userMapper.getUserByNameOrEmail(str);
}
}
Controller package: com.czx.promanage.controller
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class UserController {
#Autowired
public Userservice userservice;
#RequestMapping("/getUser")
public String getUserByNameOrEmail(String str) {
// if (userservice.getUserByNameOrEmail(str) != null) {
// return userservice.getUserByNameOrEmail(str).toString();
// }else {
// return "no data！";
// }
return userservice.getUserByNameOrEmail(str).toString();
}
}
File: application.yml
spring:
datasource:
username: root
password: psw1317
url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&userSSL=false&serverTimezone=GMT%2B8
driver-class-name: com.mysql.cj.jdbc.Driver
server:
port: 8181
mybatis:
type-aliases-package: com.czx.promanage.bean
File: PromanageApplication
package com.czx.promanage;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
#MapperScan("com.czx.promanage.mapper")
public class PromanageApplication {
public static void main(String[] args) {
SpringApplication.run(PromanageApplication.class, args);
}
}
When I debug, it looks like userService is not injected successfully
Before I use userMapper, I test it and it works
Change this from ;
#RequestMapping("/getUser")
public String getUserByNameOrEmail(String str) {
return userservice.getUserByNameOrEmail(str).toString();
}
To somthing like this :
#RequestMapping("/getUser/{str}")
public String getUserByNameOrEmail(#PathVariable String str) {
return userservice.getUserByNameOrEmail(str).toString();
}
NullPointerException because "str" was not getting assigned to any value when called and calling toString() on null throws NullPointerException.
Now you can call your endpoint as : /getUser/useroremailidhere
I believe it's giving you NullPointerException because your parameter to that request should not be getting assigned to the argument you've mentioned in the controller. Make sure the parameter that you're passing to the argument through the url should have exact name as the parameter you've mentioned in the UserController class. If you can give the code then I can try running it myself to see what's causing the error
Remove the #Mapper annotation and debug to the controller layer to see if the service is null
I tried writing a simple rest controller in springboot that accepts a file and a string and searches in that file how many time the string is found, basically a word search and count.
I have a master and runner running on my pc and the springboot application connects without any problems. I tried using without a 'dedicated' spark master and it worked ok but after i made it connect to my desired problem the problem started occurring.
I also tried using lambda expressions but that got me other problems so i tried to make it easier.
Spark config:
#Configuration
public class SparkConfig {
#Value("${spark.app.name}")
private String appname;
#Value("${spark.master}")
private String masterUri;
#Bean
public SparkConf conf(){
System.out.println(appname + " " + masterUri);
return new SparkConf()
.setAppName(appname)
.setMaster(masterUri);
}
#Bean
public JavaSparkContext sc(){
return new JavaSparkContext(conf());
}
Endpoint:
#RequestMapping(value = "/file-word-count",method = RequestMethod.POST)
public String fileWordCount(#RequestParam("file") MultipartFile file, #RequestParam String word) {
return wordCountService.countFileWords(file,word);
}
service
#Service
#Component
public class WordCountService implements Serializable {
#Autowired
JavaSparkContext sc;
public String countFileWords(MultipartFile file, String word) {
String result = null;
try {
JavaRDD<String> textFile = sc.textFile(convertMultiToFile(file).getPath());
JavaRDD<String> words = textFile.filter(new Function<String, Boolean>() {
#Override
public Boolean call(String s) throws Exception {
return s.contains(word);
}
});
result = String.valueOf(words.count());
}
catch(IOException e){
System.out.println(e.getMessage());
}
return result;
}
public File convertMultiToFile(MultipartFile mFile) throws IOException {
File file = new File("temp","tempTextFile");
FileUtils.writeByteArrayToFile(file,mFile.getBytes());
return file;
}
}
console output:
2019-06-25 22:11:08.462 ERROR 5960 --- [nio-9090-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.apache.spark.SparkException: Task not serializable] with root cause
java.io.NotSerializableException: org.apache.spark.api.java.JavaSparkContext
Serialization stack:
- object not serializable (class: org.apache.spark.api.java.JavaSparkContext, value: org.apache.spark.api.java.JavaSparkContext#47c997cb)
- field (class: com.licenta.service.WordCountService, name: sc, type: class org.apache.spark.api.java.JavaSparkContext)
- object (class com.licenta.service.WordCountService, com.licenta.service.WordCountService#4152741c)
- field (class: com.licenta.service.WordCountService$1, name: this$0, type: class com.licenta.service.WordCountService)
- object (class com.licenta.service.WordCountService$1, com.licenta.service.WordCountService$1#22ae6915)
- field (class: org.apache.spark.api.java.JavaRDD$$anonfun$filter$1, name: f$1, type: interface org.apache.spark.api.java.function.Function)
- object (class org.apache.spark.api.java.JavaRDD$$anonfun$filter$1, <function1>)
at org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:400) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:393) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:162) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.SparkContext.clean(SparkContext.scala:2326) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.rdd.RDD$$anonfun$filter$1.apply(RDD.scala:388) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.rdd.RDD$$anonfun$filter$1.apply(RDD.scala:387) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.rdd.RDD.withScope(RDD.scala:363) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.rdd.RDD.filter(RDD.scala:387) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at org.apache.spark.api.java.JavaRDD.filter(JavaRDD.scala:78) ~[spark-core_2.11-2.4.3.jar:2.4.3]
at com.licenta.service.WordCountService.countFileWords(WordCountService.java:35) ~[classes/:na]
at com.licenta.controller.CountController.fileWordCount(CountController.java:29) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200) ~[tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.17.jar:9.0.17]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.17.jar:9.0.17]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_161]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_161]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.17.jar:9.0.17]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161]
2019-06-25 22:41:00.704 INFO 5960 --- [er-event-loop-8] o.apache.spark.storage.BlockManagerInfo : Removed broadcast_0_piece0 on DESKTOP-TF9C4EG:55462 in memory (size: 20.4 KB, free: 898.5 MB)
I expect to get a string that has the number of the word occurrences.
Hope that i was clear in explaining, if not do tell and ill try to answer as best i can.
The problem is the new Function<String, Boolean>(), it is an anonymous class and has a reference to WordCountService and transitive to JavaSparkContext. To avoid that you can make it a static nested class.
static class WordCounter implements Function<String, Boolean>, Serializable {
private final String word;
public WordCounter(String word){
this.word = word;
}
#Override
public Boolean call(String s) throws Exception {
return s.contains(word);
}
}
and use it with
JavaRDD<String> words = textFile.filter(new WordCounter(word));
Every Spark node should load classes which are required for execution of your logic. In your case it is class with countFileWords method
To fix your problem you have to do the following steps:
Implement countFileWords function in separate module(you need jar file with class where countFileWords is implemented)
Add dependency to this module to your web project where WordCountService is implemented
Set path to Jar file to JavaSparkContext using public void addJar(String path)
public void addJar(String path) Adds a JAR dependency for all tasks to
be executed on this SparkContext in the future. The path passed can be
either a local file, a file in HDFS (or other Hadoop-supported
filesystems), or an HTTP, HTTPS or FTP URI.
I would like to use the Spring and Servlet together in the application.
For the same purpose I have written the code as below:
#WebServlet("/SaveServlet")
public class SaveServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("E:\\SouceTree\\JavaEE\\Servlets\\CRUDServlet\\resources\\spring.xml");
}
}
After deploying the application when I hit the URL http://localhost:8080/CRUDServlet/SaveServlet,
it is throwing following exception stack:
java.lang.ClassNotFoundException: org.springframework.context.support.ClassPathXmlApplicationContext
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1363)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1186)
at org.krutik.servlet.SaveServlet.doPost(SaveServlet.java:23)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Unknown Source)
Can someone please help me with the same?