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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:274)	at java.lang.Class.newInstance0(Class.java:308)	at java.lang.Class.newInstance(Class.java:261)	at oracle.jbo.server.EntityDefImpl.createBlankInstance(EntityDefImpl.java:1174)	at oracle.jbo.server.ViewRowImpl.createMissingEntities(ViewRowImpl.java:1532)	at oracle.jbo.server.ViewRowImpl.init(ViewRowImpl.java:236)	at oracle.jbo.server.ViewDefImpl.createBlankInstance(ViewDefImpl.java:1081)	at oracle.jbo.server.ViewDefImpl.createInstanceFromResultSet(ViewDefImpl.java:1038)	at oracle.jbo.server.ViewObjectImpl.createRowFromResultSet(ViewObjectImpl.java:2707)	at oracle.jbo.server.ViewObjectImpl.createInstanceFromResultSet(ViewObjectImpl.java:2605)	at oracle.jbo.server.QueryCollection.populateRow(QueryCollection.java:2056)	at oracle.jbo.server.QueryCollection.fetch(QueryCollection.java:1890)	at oracle.jbo.server.QueryCollection.get(QueryCollection.java:1296)	at oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:2889)	at oracle.jbo.server.ViewRowSetIteratorImpl.doFetch(ViewRowSetIteratorImpl.java:2521)	at oracle.jbo.server.ViewRowSetIteratorImpl.ensureRefreshed(ViewRowSetIteratorImpl.java:2383)	at oracle.jbo.server.ViewRowSetIteratorImpl.refresh(ViewRowSetIteratorImpl.java:2586)	at oracle.jbo.server.ViewRowSetImpl.notifyRefresh(ViewRowSetImpl.java:1677)	at oracle.jbo.server.ViewRowSetImpl.execute(ViewRowSetImpl.java:597)	at oracle.jbo.server.ViewRowSetImpl.execute(ViewRowSetImpl.java:544)	at oracle.jbo.server.ViewRowSetImpl.executeDetailQuery(ViewRowSetImpl.java:619)	at oracle.jbo.server.ViewObjectImpl.executeDetailQuery(ViewObjectImpl.java:3339)	at oracle.jbo.server.ViewObjectImpl.executeQuery(ViewObjectImpl.java:3326)	at oracle.apps.fnd.framework.server.OAViewObjectImpl.executeQuery(OAViewObjectImpl.java:441)	at oracle.apps.fnd.framework.server.OAViewObjectImpl.initQuery(OAViewObjectImpl.java:716)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.setCriteriaOnVO(OAWebBeanHelper.java:2314)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.setCriteriaOnVO(OAWebBeanHelper.java:2288)	at oracle.apps.fnd.framework.webui.OAQueryHelper.handleSubmitButton(OAQueryHelper.java:2816)	at oracle.apps.fnd.framework.webui.OAQueryHelper.processFormRequestAfterController(OAQueryHelper.java:1367)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequest(OAWebBeanHelper.java:842)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormRequest(OAWebBeanContainerHelper.java:363)	at oracle.apps.fnd.framework.webui.OAQueryHelper.processFormRequest(OAQueryHelper.java:1076)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processFormRequest(OAStackLayoutBean.java:370)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:1022)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:988)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequest(OAWebBeanHelper.java:843)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormRequest(OAWebBeanContainerHelper.java:363)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processFormRequest(OAStackLayoutBean.java:370)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:1022)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:988)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequest(OAWebBeanHelper.java:843)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormRequest(OAWebBeanContainerHelper.java:363)	at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processFormRequest(OAPageLayoutHelper.java:1159)	at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processFormRequest(OAPageLayoutBean.java:1579)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:1022)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:988)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequest(OAWebBeanHelper.java:843)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormRequest(OAWebBeanContainerHelper.java:363)	at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processFormRequest(OAFormBean.java:395)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:1022)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequestChildren(OAWebBeanHelper.java:988)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processFormRequest(OAWebBeanHelper.java:843)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processFormRequest(OAWebBeanContainerHelper.java:363)	at oracle.apps.fnd.framework.webui.beans.OABodyBean.processFormRequest(OABodyBean.java:363)	at oracle.apps.fnd.framework.webui.OAPageBean.processFormRequest(OAPageBean.java:2676)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:1683)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:509)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:430)