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    This happens when you try to instantiate a class that can't be instantiated, either because the class object is abstract, an interface, an array class, a primitive type, void, or because the class has no nullary constructor.

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java.lang.InstantiationException: 	at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:30)	at java.lang.reflect.Constructor.newInstance(Constructor.java:494)	at java.lang.Class.newInstance0(Class.java:350)	at java.lang.Class.newInstance(Class.java:303)	at oracle.jbo.server.EntityDefImpl.createBlankInstance(EntityDefImpl.java:1388)	at oracle.jbo.server.EntityDefImpl.createBlankInstance2(EntityDefImpl.java:1338)	at oracle.jbo.server.ViewRowImpl.createMissingEntities(ViewRowImpl.java:1639)	at oracle.jbo.server.ViewRowImpl.init(ViewRowImpl.java:269)	at oracle.jbo.server.ViewDefImpl.createBlankInstance(ViewDefImpl.java:1125)	at oracle.jbo.server.ViewDefImpl.createInstanceFromResultSet(ViewDefImpl.java:1058)	at oracle.jbo.server.ViewObjectImpl.createRowFromResultSet(ViewObjectImpl.java:2946)	at oracle.jbo.server.ViewObjectImpl.createInstanceFromResultSet(ViewObjectImpl.java:2839)	at oracle.jbo.server.QueryCollection.populateRow(QueryCollection.java:2252)	at oracle.jbo.server.QueryCollection.fetch(QueryCollection.java:2127)	at oracle.jbo.server.QueryCollection.get(QueryCollection.java:1501)	at oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:3650)	at oracle.jbo.server.ViewRowSetIteratorImpl.doFetch(ViewRowSetIteratorImpl.java:2818)	at oracle.jbo.server.ViewRowSetIteratorImpl.ensureRefreshed(ViewRowSetIteratorImpl.java:2674)	at oracle.jbo.server.ViewRowSetIteratorImpl.ensureRefreshed(ViewRowSetIteratorImpl.java:2634)	at oracle.jbo.server.ViewRowSetIteratorImpl.first(ViewRowSetIteratorImpl.java:1474)	at oracle.jbo.server.ViewRowSetImpl.first(ViewRowSetImpl.java:2827)	at oracle.jbo.server.ViewObjectImpl.first(ViewObjectImpl.java:5724)	at oracle.apps.fnd.framework.webui.OAWebBeanDataAttributeHelper.getViewObjectRow(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanDataAttributeHelper.getViewObjectRow(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanDataAttributeHelper.getValueWithoutDataTypeConversion(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanDataAttributeHelper.setValue(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanFormElementHelper.setValue(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanTextInputHelper.setValue(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanFormElementHelper.processFormAttribute(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanFormElementHelper.processFormDataAfterController(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.beans.message.OAMessageTextInputBean.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataIndexedChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataIndexedChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataIndexedChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataIndexedChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormDataChildren(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.beans.OABodyBean.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAPageBean.processFormData(Unknown Source)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)	at _OA._jspService(_OA.java:71)	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)	at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239)	at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34)	at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:595)