ZK Spreadsheet

when load the
http://www.energystar.gov/index.cfm?c=assess_value.financial_tools

Cash Flow Opportunity Calculator

SEVERE: Servlet.service() for servlet zkLoader threw exception
java.lang.NullPointerException
at jxl.biff.drawing.ZssDrawing.<init>(ZssDrawing.java:61)
at
org.zkoss.zss.model.impl.ExcelImporter.importSheetImages(ExcelImporter.java
:584)
at
org.zkoss.zss.model.impl.ExcelImporter.importEachSheet(ExcelImporter.java:1
94)
at
org.zkoss.zss.model.impl.ExcelImporter.importFromStream(ExcelImporter.java:
114)
at
org.zkoss.zss.model.impl.ExcelImporter.importFromURL(ExcelImporter.java:169
)
at org.zkoss.zss.model.impl.ExcelImporter.imports(ExcelImporter.java:69)
at org.zkoss.zss.ui.Spreadsheet.getBook(Spreadsheet.java:369)
at org.zkoss.zss.ui.Spreadsheet.getSelectedSheet(Spreadsheet.java:454)
at org.zkoss.zss.ui.Spreadsheet.setMaxrows(Spreadsheet.java:600)
at org.zkoss.zss.ui.Spreadsheet.setMaxrow(Spreadsheet.java:626)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3
9)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
l.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.zkoss.zk.ui.metainfo.Property.assign(Property.java:233)
at
org.zkoss.zk.ui.metainfo.ComponentInfo.applyProperties(ComponentInfo.java:7
33)
at
org.zkoss.zk.ui.impl.AbstractUiFactory.newComponent(AbstractUiFactory.java:
95)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:598)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:581)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:525)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:492)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:612)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:581)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:525)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:492)
at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage0(UiEngineImpl.java:374)
at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage(UiEngineImpl.java:296)
at
org.zkoss.zk.ui.http.DHtmlLayoutServlet.process(DHtmlLayoutServlet.java:230
)
at
org.zkoss.zk.ui.http.DHtmlLayoutServlet.doGet(DHtmlLayoutServlet.java:167)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
nFilterChain.java:269)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
hain.java:188)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
ava:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
ava:172)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
7)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:11
7)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
a:108)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)

at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
Connection(Http11BaseProtocol.java:665)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
va:528)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
orkerThread.java:81)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
va:689)
at java.lang.Thread.run(Thread.java:595)
Nov 3, 2009 1:50:49 PM org.apache.catalina.core.StandardWrapperValve
invoke
SEVERE: Servlet.service() for servlet zkLoader threw exception
java.lang.NullPointerException
at jxl.biff.drawing.ZssDrawing.<init>(ZssDrawing.java:61)
at
org.zkoss.zss.model.impl.ExcelImporter.importSheetImages(ExcelImporter.java
:584)
at
org.zkoss.zss.model.impl.ExcelImporter.importEachSheet(ExcelImporter.java:1
94)
at
org.zkoss.zss.model.impl.ExcelImporter.importFromStream(ExcelImporter.java:
114)
at
org.zkoss.zss.model.impl.ExcelImporter.importFromURL(ExcelImporter.java:169
)
at org.zkoss.zss.model.impl.ExcelImporter.imports(ExcelImporter.java:69)
at org.zkoss.zss.ui.Spreadsheet.getBook(Spreadsheet.java:369)
at org.zkoss.zss.ui.Spreadsheet.getSelectedSheet(Spreadsheet.java:454)
at org.zkoss.zss.ui.Spreadsheet.setMaxrows(Spreadsheet.java:600)
at org.zkoss.zss.ui.Spreadsheet.setMaxrow(Spreadsheet.java:626)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3
9)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
l.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.zkoss.zk.ui.metainfo.Property.assign(Property.java:233)
at
org.zkoss.zk.ui.metainfo.ComponentInfo.applyProperties(ComponentInfo.java:7
33)
at
org.zkoss.zk.ui.impl.AbstractUiFactory.newComponent(AbstractUiFactory.java:
95)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:598)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:581)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:525)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:492)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:612)
at
org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:581)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:525)
at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:492)
at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage0(UiEngineImpl.java:374)
at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage(UiEngineImpl.java:296)
at
org.zkoss.zk.ui.http.DHtmlLayoutServlet.process(DHtmlLayoutServlet.java:230
)
at
org.zkoss.zk.ui.http.DHtmlLayoutServlet.doGet(DHtmlLayoutServlet.java:167)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
nFilterChain.java:269)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
hain.java:188)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
ava:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
ava:172)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
7)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:11
7)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
a:108)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)

at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
Connection(Http11BaseProtocol.java:665)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
va:528)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
orkerThread.java:81)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
va:689)
at java.lang.Thread.run(Thread.java:595)