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  • web.xml : URL mapping

    - by Devashish Dixit
    I have these two lines in my web.xml <url-pattern>/</url-pattern> : Index Servletand <url-pattern>/login</url-pattern> : Login Servlet but whem I open http://localhost:8084/login/, it goes to Index Servlet and when I open http://localhost:8084/login, it goes to Login Servlet. Is there any difference in http://localhost:8084/login/ and http://localhost:8084/login? My web.xml <servlet> <servlet-name>Index</servlet-name> <servlet-class>Index</servlet-class> </servlet> <servlet> <servlet-name>Login</servlet-name> <servlet-class>Login</servlet-class> </servlet> and <servlet-mapping> <servlet-name>Index</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>Login</servlet-name> <url-pattern>/login</url-pattern> </servlet-mapping>

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  • How to setup Eclipselink with JPA?

    - by deamon
    The Eclipselink documentation says that I need the following entries in my pom.xml to get it with Maven: <dependencies> <dependency> <groupId>org.eclipse.persistence</groupId> <artifactId>eclipselink</artifactId> <version>2.0.0</version> <scope>compile</scope> ... </dependency> <dependencies> ... <repositories> <repository> <id>EclipseLink Repo</id> <url>http://www.eclipse.org/downloads/download.php?r=1&amp;nf=1&amp;file=/rt/eclipselink/maven.repo</url> </repository> ... </repositories> But when I try to use @Entity annotation NetBeans tells me, that the class cannot be found. And indeed: there is no Entity class in the javax.persistence package from Eclipselink. How do I have to setup Eclipselink with Maven?

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  • JTA or LOCAL transactions in JPA2+Hibernate 3.6.0?

    - by Pangea
    We are in the process of re-thinking our tech stack and below are our choices (We can't live without Spring and Hibernate due to the complexity etc of the app). We are also moving from J2EE 1.4 to JEE 5. Tech stack JEE 5 JPA 2.0 (I know JEE 5 only supports JPA 1.0 but we want to use Hibernate as the JPA provider) Hibernate 3.6.0 (We already have lots of hbm files with custom types etc. so we doesn't want to migrate them at this time to JPA. This means we want both jpa/hbm mappings work together and hence the Hibernate as the JPA provider instead of using the default that comes with App Server) Now the problems is that I want to stick with local transactions but other team members want to use JTA. I have been working with J2EE for last 9 years and I've heard time and again people suggesting to stick with local transactions if I doesn't need two phase commits. This is not only for performance reasons but debugging/troubleshooting a local transaction is lot easier than a distributed transaction. My suggestion is to use spring declarative transaction management + local transactions (HibernateTransactionManager) I want to make sure if I am being paranoid or I have a valid point. I'd like to hear what the rest of the JEE world thinks. Thank you.

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  • Anyone know exactly which JMS messages will be redelivered in CLIENT_ACKNOWLEDGE mode if the client

    - by user360612
    The spec says "Acknowledging a consumed message automatically acknowledges the receipt of all messages that have been delivered by its session" - but what I need to know is what it means by 'delivered'. For example, if I call consumer.receive() 6 times, and then call .acknowledge on the 3rd message - is it (a) just the first 3 messages that are ack'd, or (b) all 6? I'm really hoping it's option a, i.e. messages after the one you called acknowledge on WILL be redelivered, otherwise it's hard to see how you could prevent message lost in the event of my receiver process crashing before I've had a chance to persist and acknowledge the messages. But the spec is worded such that it's not clear. I get the impression the authors of the JMS spec considered broker failure, but didn't spend too long thinking about how to protect against client failure :o( Anyway, I've been able to test with SonicMQ and found that it implements (a), i.e. messages 'received' later than the message you call .ack on DO get redelivered in the event of a crash, but I'd love to know how other people read the standard, and if anyone knows how any other providers have implemented CLIENT_ACKNOWLEDGE? (i.e. what the 'de facto' standard is) Thanks Ben

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  • Why does my JSF + Spring web application output JSF source code instead of interpreted HTML page?

    - by Corvus
    I'm new to both JSF and Spring Framework and I'm trying to figure out how to make them work together. My current problem is that application outputs my JSF files without interpreting them. Here are some snippets of my code which I believe might be relevant: dispatcher-servlet.xml <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="mappings"> <props> <prop key="login.htm">loginController</prop> </props> </property> </bean> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/pages/" p:suffix=".xhtml" /> <bean name="loginController" class="controller.LoginController" /> loginController public class LoginController extends MultiActionController { public ModelAndView login(HttpServletRequest request, HttpServletResponse response) throws Exception { System.out.println("LOGIN"); return new ModelAndView("login"); } WEB-INF/pages/login.xhtml <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html"> <h:head> <title>#{message.log}</title> </h:head> <h:body> <h:form> <h:outputLabel value="#{message.username}" for="userName"> <h:inputText id="userName" value="#{User.name}" /> </h:outputLabel> <h:commandButton value="#{message.loggin}" action="#{User.login}" /> </h:form> </h:body> </html> Any ideas where the problem might be? Does this code make any sense at all? I'm well aware of fact, that probably completely sucks and I'll be glad to here WHY it sucks and how to make it better. Thanks :)

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  • Spring 2.0.0/2.0.6 to 3.0.5 migration stories

    - by Pangea
    We are in the process of migrating to 3.0.5 of spring from 2.0.x. We mainly use spring in below scenarios custom scope: thread local scope persistence: jdbc+hibernate 3.6 (but moving to mix of ejb 3.0+jpa 2.0+hibernate, not sure if all 3 can co-exist in 1 app) transactions: local (but planning to use jta due to the necessity of using multiple persistence inits, and has to use ejb+jpa+hibernate in 1 single trans), declarative trans mgmt parent-child contexts cxf annotations+xml OracleLobHandler Resource/ResourceBundleMessageResource JSF/Facelets with FacesSpringVariableResolver ActiveMQ integration Quartz integration TaskExecutor JMX exporter HttpExporter/Invoker Appreciate if someone can share their experiences like what to watch out for head aches/pain points which ones to drop for better alternate choices in new 3.0.5 release Is it better to switch from commons/iscreen validator to Hibernate Validator (Spec impl) or Spring Validator Is there a bean mapping framework in spring that i can use instead of Dozer XSLT transformation helper: currently we have small homegrown framework to cache xslts during load. if spring can do that for me then I would like to drop this Encryption/Decryption support. Password generation support. Authentication with SALT any SAML (or claims based secur New ideas Suggestions Switch to latest version of aspectj Upgrade guide from 2.5 to 3.0.5

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  • JMS Topic message size

    - by jjoshi
    Our application uses a topic to push message to a small set of subscribers. what sort of things should i look for when modeling a jms message with respect to the size of the actual message to be pushed. Are there any known limits or is application server specific? Any best practices or suggestions on this topic (pun unintended)?

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  • Problem with richfaces ajax datatable + buttons

    - by Schyzotrop
    Hello i have another problem with RichFaces this is my application and it shows how i want it to work : http://www.screencast.com/users/Schyzotrop/folders/Jing/media/a299dc1e-7a10-440e-8c39-96b1ec6e85a4 this is video of some glitch that i can't solve http://screencast.com/t/MDFiMGMzY the problem is that when i am trying to press any buttons on others than 1st category it won't do anything IF 1st category has less rows than the one i am calling it from from 1st category it works always i am using follwoing code in jsp for collumns : <h:form id="categoryAttributeList"> <rich:panel> <f:facet name="header"> <h:outputText value="Category Attribute List" /> </f:facet> <rich:dataTable id="table" value="#{categoryAttributeBean.allCategoryAttribute}" var="cat" width="100%" rows="10" columnClasses="col1,col2,col2,col3"> <f:facet name="header"> <rich:columnGroup> <h:column>Name</h:column> <h:column>Description</h:column> <h:column>Category</h:column> <h:column>Actions</h:column> </rich:columnGroup> </f:facet> <rich:column filterMethod="#{categoryAttributeFilteringBean.filterNames}"> <f:facet name="header"> <h:inputText value="#{categoryAttributeFilteringBean.filterNameValue}" id="input"> <a4j:support event="onkeyup" reRender="table , ds" ignoreDupResponses="true" requestDelay="700" oncomplete="setCaretToEnd(event);" /> </h:inputText> </f:facet> <h:outputText value="#{cat.name}" /> </rich:column> <rich:column filterMethod="#{categoryAttributeFilteringBean.filterDescriptions}"> <f:facet name="header"> <h:inputText value="#{categoryAttributeFilteringBean.filterDescriptionValue}" id="input2"> <a4j:support event="onkeyup" reRender="table , ds" ignoreDupResponses="true" requestDelay="700" oncomplete="setCaretToEnd(event);" /> </h:inputText> </f:facet> <h:outputText value="#{cat.description}" /> </rich:column> <rich:column filterMethod="#{categoryAttributeFilteringBean.filterCategories}"> <f:facet name="header"> <h:selectOneMenu value="#{categoryAttributeFilteringBean.filterCategoryValue}"> <f:selectItems value="#{categoryAttributeFilteringBean.categories}" /> <a4j:support event="onchange" reRender="table, ds" /> </h:selectOneMenu> </f:facet> <h:outputText value="#{cat.categoryID.name}" /> </rich:column> <h:column> <a4j:commandButton value="Edit" reRender="pnl" action="#{categoryAttributeBean.editCategoryAttributeSetup}"> <a4j:actionparam name="categoryAttributeID" value="#{cat.categoryAttributeID}" assignTo="#{categoryAttributeBean.id}" /> <a4j:actionparam name="state" value="edit" /> <a4j:actionparam name="editId" value="#{cat.categoryAttributeID}" /> </a4j:commandButton> <a4j:commandButton reRender="categoryAttributeList" value="Delete" action="#{categoryAttributeBean.deleteCategoryAttribute}"> <a4j:actionparam name="categoryAttributeID" value="#{cat.categoryAttributeID}" assignTo="#{categoryAttributeBean.id}" /> </a4j:commandButton> </h:column> <f:facet name="footer"> <rich:datascroller id="ds" renderIfSinglePage="false"></rich:datascroller> </f:facet> </rich:dataTable> <rich:panel id="msg"> <h:messages errorStyle="color:red" infoStyle="color:green"></h:messages> </rich:panel> </rich:panel> </h:form> and here is code of my backing bean @EJB private CategoryBeanLocal categoryBean; private CategoryAttribute categoryAttribute = new CategoryAttribute(); private ArrayList<SelectItem> categories = new ArrayList<SelectItem>(); private int id; private int categoryid; // Actions public void newCategoryAttribute() { categoryAttribute.setCategoryID(categoryBean.findCategoryByID(categoryid)); categoryBean.addCategoryAttribute(categoryAttribute); FacesContext.getCurrentInstance().addMessage("newCategoryAttribute", new FacesMessage("CategoryAttribute " + categoryAttribute.getName() + " created.")); this.categoryAttribute = new CategoryAttribute(); } public void editCategoryAttributeSetup() { categoryAttribute = categoryBean.findCategoryAttributeByID(id); } public void editCategoryAttribute() { categoryAttribute.setCategoryID(categoryBean.findCategoryByID(categoryid)); categoryBean.updateCategoryAttribute(categoryAttribute); FacesContext.getCurrentInstance().addMessage("newCategoryAttribute", new FacesMessage("CategoryAttribute " + categoryAttribute.getName() + " edited.")); this.categoryAttribute = new CategoryAttribute(); } public void deleteCategoryAttribute() { categoryAttribute = categoryBean.findCategoryAttributeByID(id); categoryBean.removeCategoryAttribute(categoryAttribute); FacesContext.getCurrentInstance().addMessage("categoryAttributeList", new FacesMessage("CategoryAttribute " + categoryAttribute.getName() + " deleted.")); this.categoryAttribute = new CategoryAttribute(); } // Getters public CategoryAttribute getCategoryAttribute() { return categoryAttribute; } public List<CategoryAttribute> getAllCategoryAttribute() { return categoryBean.findAllCategoryAttributes(); } public ArrayList<SelectItem> getCategories() { categories.clear(); List<Category> allCategory = categoryBean.findAllCategory(); Iterator it = allCategory.iterator(); while (it.hasNext()) { Category cat = (Category) it.next(); SelectItem select = new SelectItem(); select.setLabel(cat.getName()); select.setValue(cat.getCategoryID()); categories.add(select); } return categories; } public int getId() { return id; } public int getCategoryid() { return categoryid; } // Setters public void setCategoryAttribute(CategoryAttribute categoryAttribute) { this.categoryAttribute = categoryAttribute; } public void setId(int id) { this.id = id; } public void setCategoryid(int categoryid) { this.categoryid = categoryid; } and here is filtering bean : @EJB private CategoryBeanLocal categoryBean; private String filterNameValue = ""; private String filterDescriptionValue = ""; private int filterCategoryValue = 0; private ArrayList<SelectItem> categories = new ArrayList<SelectItem>(); public boolean filterNames(Object current) { CategoryAttribute currentName = (CategoryAttribute) current; if (filterNameValue.length() == 0) { return true; } if (currentName.getName().toLowerCase().contains(filterNameValue.toLowerCase())) { return true; } else { System.out.println("name"); return false; } } public boolean filterDescriptions(Object current) { CategoryAttribute currentDescription = (CategoryAttribute) current; if (filterDescriptionValue.length() == 0) { return true; } if (currentDescription.getDescription().toLowerCase().contains(filterDescriptionValue.toLowerCase())) { return true; } else { System.out.println("desc"); return false; } } public boolean filterCategories(Object current) { if (filterCategoryValue == 0) { getCategories(); filterCategoryValue = new Integer(categories.get(0).getValue().toString()); } CategoryAttribute currentCategory = (CategoryAttribute) current; if (currentCategory.getCategoryID().getCategoryID() == filterCategoryValue) { return true; } else { System.out.println(currentCategory.getCategoryID().getCategoryID() + "cate" + filterCategoryValue); return false; } } public ArrayList<SelectItem> getCategories() { categories.clear(); List<Category> allCategory = categoryBean.findAllCategory(); Iterator it = allCategory.iterator(); while (it.hasNext()) { Category cat = (Category) it.next(); SelectItem select = new SelectItem(); select.setLabel(cat.getName()); select.setValue(cat.getCategoryID()); categories.add(select); } return categories; } public String getFilterDescriptionValue() { return filterDescriptionValue; } public String getFilterNameValue() { return filterNameValue; } public int getFilterCategoryValue() { return filterCategoryValue; } public void setFilterDescriptionValue(String filterDescriptionValue) { this.filterDescriptionValue = filterDescriptionValue; } public void setFilterNameValue(String filterNameValue) { this.filterNameValue = filterNameValue; } public void setFilterCategoryValue(int filterCategoryValue) { this.filterCategoryValue = filterCategoryValue; } unfortunetly i can't even imagine what could cause this problem that's why i even made videos to help u understand my problem thanks for help!

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  • How to auto create a JMS topic/queue on JBoss in a portable and per-application way?

    - by Bozho
    It's simple: I have an MDB and an EJB that sends messages to a topic (or queue). JBoss complains that the topic is not bound to the JNDI context. I want to have the topic/queue to be automatically created at best, or at least to have a standard way to define it, per application (say, in ejb-jar/META-INF) this question and this blogpost show us how to do it in an application server specific way. This surely works, but: I want to use the @MessageDriven annotation I want the setting not to be global for the application server I want the setting to be portable

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  • mirror link for JavaEE 6 tutorial Example

    - by ManWard
    hi Oracle [Sun] don't let downloading anything from their websites for people from iran.[sad story for us because we are students and Researcher...] i need to samples of this tutorial : http://java.sun.com/javaee/6/docs/tutorial/doc/gexaj.html#gexba anybody can help me for finding mirror link for these samples or uploading samples ? I appreciate you. thanks

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  • What should I learn to improve my Java skills ?

    - by hory.incpp
    Hello, I currently know Java SE and I want to learn something more 'enterprise'. I would like something more distributed (app server, server programming, web, content management system ...) but any suggestion is ok. There are many frameworks which I've heard: spring, hibernate, persistence, ejb, jsp, servlet, jsf, jboss, glassfish, ant etc etc etc etc. I'm very confused where to start. So the question is: Can somebody explain to me what actually there frameworks are; and which one should I start with ? Thank you.

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  • What are the essential Java libraries and utilities for a returning dynamic language user?

    - by jbwiv
    Guys, Long time Java developer here, but I've spent more time working with Ruby over the past 3 years or so as far as web applications go. I really have enjoyed it, but there are concerns I've uncovered that I won't cover here. Now that I've found the Play! framework, I'm thrilled about the prospect of having a Rails-like experience with Java's speed and reliability. Aside from what Play! provides out of the box, I'm looking for recommendations on "can't miss" libraries and tools for the Java developer used to pragmatic, dynamic experiences. I've found Project Lombok, which looks like a very intriguing way to eliminate a lot of the boiler plate, unnecessary Java noise. What else should I know about? I know Google has released quite a few libraries over the past three years that I've heard mentioned on the Java Posse, but I can't recall exactly what they are. I'm sure I've missed others in my absence. So, what makes up your essential Java toolbox these days? Thanks for your answers!

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  • GF 3.0.1 + Virtual Server: www.myhost.com:8080/projectname-war => www.myhost.com. How?

    - by Harry Pham
    EDIT I need to change www.myhost.com:8080/myproject-war to www.myhost.com. Here is what I've been trying: I configurate the Virtual Server: server. I have still have default Network Listeners to be http-listener-1 and http-listner-2. I change the Default Web Module to ScholarActive#ScholarActive-war.war (The only option in the drop down list, since I only deploy 1 application). For the docroot, I try this ${com.sun.aas.instanceRoot}/applications/ScholarActive/ScholarActive-war_war or this ${com.sun.aas.instanceRoot}/applications/ScholarActive/ Both does not work. What does docroot need to point to, for this to work? what I try to do is: when I type localhost:8080/ScholarActive-war, then my application load, I want to make so that if I type locahost:8080, it will load the app as well, then what left is changed the port to 80. But no luck. Any Idea?

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  • JSF data transfer between UI and business layer

    - by Ram
    Hi, We are using JSF in UI, Spring in business layer, Hibernate in persistence layer. Now my question is how to pass data from the JSF UI to spring business layer. Can I directly use my business object in my backing bean or should I transfer data between the layer through DTO? Can one explain me with clear explanation if possible with piece of code and that related websites?

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  • Which Java version do you mostly (have to) work with?

    - by ferdystschenko
    While from version 5 on, Java provides many extremely useful features like annotations, enums, generics, etc., 1.4 is still in use in many enterprise projects. So I'm wondering what the chances are that you still have to work with 1.4, thus being forced to go without JPA, EJB3 etc. In your answer, please also state the branch of company you work for. Which are the reasons for not switching to Java 5? Thanks, Armin

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  • Auto generation of Web Service sample, help and documentation

    - by orjan
    We're using javax.jws.WebServices deployed in a Glassfish server, is there a way to auto generate documentation like the one ASMX services generates? ASMX services display methods in service ASMX services when running locally could be easily tested with a prebuilt form ASMX services provided a sample request and response XML message http://keithelder.net/blog/archive/2008/01/15/How-to-Get-Around-WCFs-Lack-of-a-Preview-Web.aspx In Glasshfish together with /test/TestApi?wsdl there's /test/TestApi?Tester but it doesn't work, I don't know if it can be used to provide similar features as above?

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  • How Java Runtime Maps to Targets

    - by zharvey
    According to the Javadocs for Runtime here: Every Java application has a single instance of class Runtime that allows the application to interface with the environment in which the application is running. The current runtime can be obtained from the getRuntime method. An application cannot create its own instance of this class. My question is: what's their definition of an application? Is each JAR/WAR/EAR considered a standalone application? What about a plain ole' Driver.class class with a main() method? What about JEE containers that house EARs and EJBs? I guess I'm trying to understand how many Runtime instances could be up and running inside a complex (JEE) system. And understanding that requires me to understand what specific "things" constitute an "application" in Java terminology. Thanks in advance!

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  • Can't instantiate javax.servlet.ServletException

    - by Denis
    Hello, experts! I am trying to create instance of class javax.servlet.ServletException with following code public class MyTroubleViewer { public static void main(String[] args) { javax.servlet.ServletException servletException = new javax.servlet.ServletException("Hello"); System.out.println(servletException.getMessage()); } } But I get exception on creating: Exception in thread "main" java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/servlet/ServletException ... Maven helps me with dependecies: <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>6.0</version> <type>jar</type> <scope>compile</scope> </dependency> What am I doing wrong?

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  • How to stop the execution of Java program from Command line?

    - by Aakash
    My main field is .Net but recently I have got something to do with Java. I have to create a shell utility in Java that could run in background reading few database records after specified duration and do further processing. It's a kind of scheduler. Now I have few concerns: How to make this work as a service. I want to execute it through a shell script and the utility should start running. Off course the control should get back to the calling script. Secondly, eventually i may want to stop this process from running. How to achieve this? I understand these are basic question but I really have no idea where to begin and what options are best for me. Any help / advise please?

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  • DAO design pattern and using it across multiple tables

    - by Casey
    I'm looking for feedback on the Data Access Object design pattern and using it when you have to access data across multiple tables. It seems like that pattern, which has a DAO for each table along with a Data Transfer Object (DTO) that represents a single row, isn't too useful for when dealing with data from multiple tables. I was thinking about creating a composite DAO and corresponding DTO that would return the result of, let's say performing a join on two tables. This way I can use SQL to grab all the data instead of first grabbing data from one using one DAO and than the second table using the second DAO, and than composing them together in Java. Is there a better solution? And no, I'm not able to move to Hibernate or another ORM tool at the moment. Just straight JDBC for this project.

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  • Auto login on website

    - by jacktol
    I'm working on an application which consists of a Web Application and a Standalone Application. Both of the applications use the same database and require authentication and authorization. Within the Standalone Application a web browser needs to be opened, going to a page within the Web Application. This page is for authorized users only. Could anyone tell me if there is an easy way to automatically login within the Web Application via the Standalone Application? Besides using cookies or providing a token in the url. Thank you.

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  • JPA 2.0 Provider Hibernate

    - by Rooh
    I have very strange problem we are using jpa 2.0 with hibernate annotations based Database generated through JPA DDL is true and MySQL as Database; i will provide some reference classes and then my porblem. @MappedSuperclass public abstract class Common implements serializable{ @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "id", updatable = false) private Long id; @ManyToOne @JoinColumn private Address address; //with all getter and setters //as well equal and hashCode } @Entity public class Parent extends Common{ private String name; @OneToMany(cascade = {CascadeType.MERGE,CascadeType.PERSIST}, mappedBy = "parent") private List<Child> child; //setters and rest of class } @Entity public class Child extends Common{ //some properties with getter/setters } @Entity public class Address implements Serializable{ @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "id", updatable = false) private Long id; private String street; //rest of class with get/setter } as in code you can see that parents and child classes extends Common class so both have address property and id , the problem occurs when change the address refference in parent class it reflect same change in all child objects in list and if change address refference in child class then on merge it will change address refference of parent as well i am not able to figure out is it is problem of jpa or hibernate

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