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  1. <h:column>
  2. <f:facet name="header">
  3. Book Button
  4. </f:facet>
  5. <h:panelGroup style="display:block; text-align:center">
  6. <h:commandButton id="button" value="Book Lesson" action="#{tableLessonBean.confirm()}" />
  7. <f:param name="lessonno" value="#{itemLesson.lessonno}" />
  8. </h:panelGroup>
  9. </h:column>
  10.  
  11. private String LESSONNO;
  12.  
  13. public String getLessonno(FacesContext i) {
  14. Map<String,String> stuff = i.getExternalContext().getRequestParameterMap();
  15.  
  16. return stuff.get(LESSONNO); /////////////////////
  17. }
  18.  
  19.  
  20. public String confirm() {
  21. FacesContext i = FacesContext.getCurrentInstance();
  22. this.LESSONNO = getLessonno(i); /////////////////////////
  23.  
  24. return "confirm";
  25. }
  26.  
  27. public String getLessonno() {
  28. return LESSONNO;
  29. }
  30.  
  31. public void setLessonno(String Lessonno) {
  32. this.LESSONNO = Lessonno;
  33. }
  34.  
  35. javax.faces.FacesException: #{tableLessonBean.confirm()}: java.lang.NullPointerException: Argument Error: Parameter key is null
  36. at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
  37. at javax.faces.component.UICommand.broadcast(UICommand.java:315)
  38. at javax.faces.component.UIData.broadcast(UIData.java:1108)
  39. at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
  40. at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
  41. at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
  42. at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
  43. at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
  44. at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
  45. at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
  46. at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
  47. at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
  48. at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
  49. at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
  50. at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
  51. at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
  52. at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
  53. at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
  54. at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
  55. at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
  56. at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
  57. at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
  58. at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
  59. at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
  60. at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
  61. at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
  62. at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
  63. at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
  64. at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
  65. at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
  66. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
  67. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
  68. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
  69. at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
  70. at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
  71. at java.lang.Thread.run(Thread.java:745)
  72. Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException: Argument Error: Parameter key is null
  73. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
  74. at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
  75. ... 35 more
  76. Caused by: java.lang.NullPointerException: Argument Error: Parameter key is null
  77. at com.sun.faces.util.Util.notNull(Util.java:425)
  78. at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:74)
  79. at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:56)
  80. at java.util.Collections$UnmodifiableMap.get(Collections.java:1454)
  81. at bean.TableLessonBean.getLessonno(TableLessonBean.java:86)
  82. at bean.TableLessonBean.confirm(TableLessonBean.java:92)
  83. at bean.TableLessonBean$Proxy$_$$_WeldClientProxy.confirm(Unknown Source)
  84. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  85. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  86. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  87. at java.lang.reflect.Method.invoke(Method.java:498)
  88. at javax.el.ELUtil.invokeMethod(ELUtil.java:326)
  89. at javax.el.BeanELResolver.invoke(BeanELResolver.java:536)
  90. at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
  91. at com.sun.el.parser.AstValue.invoke(AstValue.java:269)
  92. at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
  93. at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
  94. at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
  95. at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
  96. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
  97. ... 36 more
  98.  
  99. FATAL: JSF1073: javax.faces.FacesException caught during processing of INVOKE_APPLICATION 5 : UIComponent-ClientId=, Message=#{tableLessonBean.confirm()}: java.lang.NullPointerException: Argument Error: Parameter key is null
  100. FATAL: #{tableLessonBean.confirm()}: java.lang.NullPointerException: Argument Error: Parameter key is null
  101. javax.faces.FacesException: #{tableLessonBean.confirm()}: java.lang.NullPointerException: Argument Error: Parameter key is null
  102. at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:89)
  103. at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
  104. at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
  105. at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
  106. at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
  107. at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
  108. at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
  109. at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
  110. at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
  111. at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
  112. at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
  113. at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
  114. at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
  115. at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
  116. at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
  117. at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
  118. at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
  119. at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
  120. at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
  121. at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
  122. at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
  123. at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
  124. at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
  125. at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
  126. at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
  127. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
  128. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
  129. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
  130. at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
  131. at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
  132. at java.lang.Thread.run(Thread.java:745)
  133. Caused by: javax.faces.FacesException: #{tableLessonBean.confirm()}: java.lang.NullPointerException: Argument Error: Parameter key is null
  134. at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
  135. at javax.faces.component.UICommand.broadcast(UICommand.java:315)
  136. at javax.faces.component.UIData.broadcast(UIData.java:1108)
  137. at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
  138. at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
  139. at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
  140. ... 30 more
  141. Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException: Argument Error: Parameter key is null
  142. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
  143. at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
  144. ... 35 more
  145. Caused by: java.lang.NullPointerException: Argument Error: Parameter key is null
  146. at com.sun.faces.util.Util.notNull(Util.java:425)
  147. at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:74)
  148. at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:56)
  149. at java.util.Collections$UnmodifiableMap.get(Collections.java:1454)
  150. at bean.TableLessonBean.getLessonno(TableLessonBean.java:86)
  151. at bean.TableLessonBean.confirm(TableLessonBean.java:92)
  152. at bean.TableLessonBean$Proxy$_$$_WeldClientProxy.confirm(Unknown Source)
  153. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  154. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  155. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  156. at java.lang.reflect.Method.invoke(Method.java:498)
  157. at javax.el.ELUtil.invokeMethod(ELUtil.java:326)
  158. at javax.el.BeanELResolver.invoke(BeanELResolver.java:536)
  159. at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
  160. at com.sun.el.parser.AstValue.invoke(AstValue.java:269)
  161. at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
  162. at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
  163. at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
  164. at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
  165. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
  166. ... 36 more
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