javax.el.PropertyNotFoundException in my bean class

Question

i'm trying to bind data from mysql database to my view(jsp). i have used jstl library in my jsp and i will get list of objects from database so i used forEach to get the list one by one and bind in UI but i am getting error property not found in my bean class. root cause as follows:

Mar 09, 2016 6:09:03 PM org.apache.jasper.compiler.TldLocationsCache tldScanJar
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Mar 09, 2016 6:09:04 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
javax.el.PropertyNotFoundException: Property 'AppType' not found on type com.Lookup.Bean.LookupBean
    at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:290)
    at avax.el.BeanELResolver$BeanProperties.access$300(BeanELResolver.java:243)
    at javax.el.BeanELResolver.property(BeanELResolver.java:377)
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:97)
    at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:104)
    at org.apache.el.parser.AstValue.getValue(AstValue.java:183)
    at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
    at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:944)  at org.apache.jsp.WEB_002dINF.views.getList_jsp._jspx_meth_c_005fout_005f0(getList_jsp.java:181)    at org.apache.jsp.WEB_002dINF.views.getList_jsp._jspx_meth_c_005fforEach_005f0(getList_jsp.java:137)
    at org.apache.jsp.WEB_002dINF.views.getList_jsp._jspService(getList_jsp.java:88)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

Mar 09, 2016 6:09:04 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Lookup] in context with path [/TaskDone] threw exception [An exception occurred processing JSP page /WEB-INF/views/getList.jsp at line 25

22: <tr>
23:  <%-- <td><c:out value="${lookup}"/></td> --%>
24: 
25:  <td><c:out value="${lookup.AppType}" /></td>
26:  <td><c:out value="${lookup.LicenseGuid}" /></td>
27:  <td><c:out value="${lookup.Licensed}" /></td>
28:  <td><c:out value="${lookup.SerialNumber}" /></td>

LookupBean

package com.Lookup.Bean;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="Lookup_Table")
public class LookupBean {

    public LookupBean()
    {

    }
    @Id
    @GeneratedValue
    private int id;
    @Column(name="SerialNumber")
    private String SerialNumber;
    @Column(name="Licensed")
    private boolean Licensed;
    @Column(name="LicenseGuid")
    private String LicenseGuid;
    @Column(name="AppType")
    private String AppType;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getSerialNumber() {
        return SerialNumber;
    }
    public void setSerialNumber(String serialNumber) {
        SerialNumber = serialNumber;
    }
    public boolean isLicensed() {
        return Licensed;
    }
    public void setLicensed(boolean licensed) {
        Licensed = licensed;
    }
    public String getLicenseGuid() {
        return LicenseGuid;
    }
    public void setLicenseGuid(String licenseGuid) {
        LicenseGuid = licenseGuid;
    }
    public String getAppType() {
        return AppType;
    }
    public void setAppType(String appType) {
        AppType = appType;
    }



}

any idea would be helpful :)

Think your Problem ist that your property starts with an uppercase character. The Java naming convention says that a property should start with a lower case character — Jens, Mar 09 '16 at 13:10
You should not bind an entity to your view. That is very bad software design — Jens, Mar 09 '16 at 13:10
variable Name. The column Name is not relavant for view binding — Jens, Mar 09 '16 at 13:11
Hi Jens, you was right , i had given my variables in uppercase that is why it was failing . it got executed after i changed to lowercase. thank you so much. — adithyan .p, Mar 09 '16 at 13:30
Possible duplicate of [javax.el.PropertyNotFoundException: Property 'foo' not found on type com.example.Bean](http://stackoverflow.com/questions/8577545/javax-el-propertynotfoundexception-property-foo-not-found-on-type-com-example) — BalusC, Mar 11 '16 at 08:22

score 0 · Answer 1 · edited Mar 09 '16 at 14:16

In your jsp use ${lookupBean.appType} instead of ${lookupBean.AppType} With Unified EL appType here refers to the Javabeans property not the field (ie. getAppType() method not String AppType)

To avoid confusion please follow the recommended conventions for naming your variables. Refer to this article for a detailed description of Java naming conventions http://www.oracle.com/technetwork/java/codeconventions-135099.html and this article to understand how Unified EL works https://docs.oracle.com/javaee/5/tutorial/doc/bnahq.html

javax.el.PropertyNotFoundException in my bean class

1 Answers1