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60

system exception occurred during an invocation on EJB GuestDao

(Unknown Source) at guest.GuestServlet.doGet(GuestServlet.java:24) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790 ... ) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at javax.servlet.http.HttpServlet
37

Spring + Maven + persitence.xml

.FrameworkServlet.doGet(FrameworkServlet.java:778) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) root cause org ... .http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet
37

How to Use a SF with extended Persistence Context?

(GuestServlet.java:40) [classes:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.catalina
30

Guessbook tutorial: Java EE 6 JPA Tutorial - Maven Project

.java:36) at javax.servlet.http.HttpServlet.service(HttpServlet.java:688) at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at org.apache.catalina.core.StandardWrapper.service ... ) at javax.servlet.http.HttpServlet.service(HttpServlet.java:688) at javax.servlet.http.HttpServlet
30

NoSuchFieldError: __odbTracker on NetBeans 7.3 + JBoss 7.1.1

) javax.servlet.http.HttpServlet.service(HttpServlet.java:734) javax.servlet.http.HttpServlet.service(HttpServlet.java:847) org.jboss.weld.servlet.ConversationPropagationFilter.doFilter ... --127.0.0.1-8080-1) at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) 12:25:10,458 ERROR
6

stress test -> com.objectdb.o.InternalException: null

.java:53) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina ... .servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain ... .server.rest.RsServlet.service(RsServlet.java:53) at javax.servlet.http.HttpServlet.service
6

Step 4: Add a Servlet Class

; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax ... "}) public class GuestServlet extends HttpServlet { private static final long serialVersionUID = 1L
6

Step 4: Add a Servlet Class

; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet ... ="GuestServlet", urlPatterns={"/guest"}) public class GuestServlet extends HttpServlet { private static
4

Step 4: Add a Servlet Class

class GuestServlet extends HttpServlet { private static final long serialVersionUID = 1L
4

Step 4: Add a Servlet Class

.persistence.*; @WebServlet("/GuestServlet") public class GuestServlet extends HttpServlet

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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