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Help Needed on Null Pointer Exception

Help Needed on Null Pointer Exception
Wed, 14 May 2008 03:50:28 -070
Hi All,

Am using the wls10 platform. Any help would be appriciated. Have been struggling
on this for a bit now.

Thanks,

The the relevant control code is:

 @JdbcControl.SQL(statement = "SELECT p.PATCH_ID,
p.REQUIRES,ps.PRODUCT_DISPLAY_NAME, v.VERSION_NAME,p.PATCH_NAME,p.DESCRIPTION,
to_char(p.RELEASE_DATE, 'MM/DD/YYYY') RELEASE_DATE, p.SUPERCEDES,
p.RELEASE_TYPE, p.KB_ARTICLE, p.SYSTEM_IMPACT , p.DOWNLOAD_LOCATION,
p.requirelogin, p.SEVERITY, p.ACTIVE, p.MD5, P.DOWNLOAD_FILE_SIZE from patch p,
version v, products ps where p.VERSION_ID = v.VERSION_ID and v.PRODUCT_ID =
ps.PRODUCT_ID and upper(p.PATCH_NAME) {sql: whereClause} and v.active = 1 ORDER
BY ps.PRODUCT_DISPLAY_NAME, v.VERSION_NAME")
	 public Patch[] findPatchByReleaseName(String whereClause)throws SQLException;

The controller code is:
	@Jpf.Action(forwards = {
				@Jpf.Forward(name = "success", path =
"Downloadpage.jsp", actionOutputs = { @Jpf.ActionOutput(name =
"findPatchResult", type = com.vmware.s3portal.domain.Patch[].class)
}),
				@Jpf.Forward(name = "noResults", path = "index.jsp"),
				@Jpf.Forward(name = "authError", path =
"/jsps/authCheck.jsp"),
				@Jpf.Forward(name = "error", path = "/jsps/error.jsp")
})
		public Forward findPatchByReleaseName(DisplayDataFormBean form) {

			Forward forward = null;
			String patchname = form.getPatchname();
			boolean releaseNameFlag = true;

			if (logger.isDebugEnabled()) {
				logger.debug("patchname in findPatchByReleaseName is = " +
patchname);
			}

			try {

				findPatchResult = null;// reset it
				if(patchname != null){
					patchname = patchname.trim().toUpperCase();
				}

				if (! StringUtils.isEmptyString(patchname) &&  !
IllegalCharValidator.isValid(patchname)) {
					logger.debug("patchname is illegal.");
					forward = new Forward("noResults");
					forward.addActionOutput("noResults", Boolean.TRUE);
					setPageOutputs(forward, form);
					return forward;
				}

				String whereClause = "";

				if (!StringUtils.isEmptyString(patchname)) {
					logger.debug("search by patchname");
					if (patchname.indexOf("*") != -1 || patchname.indexOf("
") != -1 || patchname.indexOf("-") != -1) {
						patchname = patchname.replaceAll("\\*", "%");
						patchname = patchname.replaceAll(" ", "%");
						patchname = patchname.replaceAll("\\-", "%");
						whereClause += "  like '%" + patchname + "%'";
					} else {
						whereClause += "  like '%" + patchname + "%'";
					}
				}

				whereClause = getWhereClause(whereClause);
				logger.debug("whereClause in findPatchByReleaseName: " +
whereClause);
				findPatchResult = rmcontrol.findPatchByReleaseName(whereClause);

				if (findPatchResult == null || findPatchResult.length == 0) {
					// forward to index.jsp
					forward = new Forward("noResults");
					forward.addActionOutput("noResults", Boolean.TRUE);
					setPageOutputs(forward, form);
					return forward;
				}
				sorter.sort(getRequest(),findPatchResult);
				logger.debug("Total number of patchs returned in ReleaseName Search:
"+ findPatchResult.length);

				forward = new Forward("success");
				forward.addActionOutput("products", products);
				forward.addActionOutput("versions", versions);
				forward.addOutputForm(form);
				forward.addActionOutput("actionForm", form);
				forward.addActionOutput("findPatchResult", findPatchResult);
				forward.addActionOutput("sorter", sorter);
				forward.addActionOutput("releaseNameFlag", releaseNameFlag);


			} catch (S3PException exception) {
				logger.error("Auth Exception in findPatchByReleaseName().",
exception);
				forward = new Forward("authError");

			} catch (Exception exception) {
				logger.error("Exception in findPatchByReleaseName().",
exception);
				forward = new Forward("error");
			}
			return forward;

		}

The exception I am getting is:

14 May 2008 15:48:58,028 ERROR PatchupdateController: Exception in
findPatchByRe
leaseName().
java.lang.NullPointerException
        at
org.apache.beehive.controls.system.jdbc.JdbcControlImpl.execPreparedS
tatement(JdbcControlImpl.java:257)
        at
org.apache.beehive.controls.system.jdbc.JdbcControlImpl.invoke(JdbcCo
ntrolImpl.java:224)
        at
com.vmware.s3portal.dbaccess.RMControlBean.findPatchByReleaseName(RMC
ontrolBean.java:191)
        at
portlets.patchupdate.PatchupdateController.findPatchByReleaseName(Pat
chupdateController.java:291)
        at
jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[
Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
        at
java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;
I)Ljava.lang.Object;(Unknown Source)
        at
org.apache.beehive.netui.pageflow.FlowController.invokeActionMethod(F
lowController.java:870)
        at
org.apache.beehive.netui.pageflow.FlowController.getActionMethodForwa
rd(FlowController.java:809)
        at
org.apache.beehive.netui.pageflow.FlowController.internalExecute(Flow
Controller.java:478)
        at
org.apache.beehive.netui.pageflow.PageFlowController.internalExecute(
PageFlowController.java:306)
        at
org.apache.beehive.netui.pageflow.FlowController.execute(FlowControll
er.java:336)
        at
org.apache.beehive.netui.pageflow.internal.FlowControllerAction.execu
te(FlowControllerAction.java:52)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(Reques
tProcessor.java:431)
        at
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.access$201
(PageFlowRequestProcessor.java:97)
        at
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor$ActionRunn
er.execute(PageFlowRequestProcessor.java:2044)
        at
org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionI
nterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:64)


        at
org.apache.beehive.netui.pageflow.interceptor.action.ActionIntercepto
r.wrapAction(ActionInterceptor.java:168)
        at
org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionI
nterceptors$WrapActionInterceptorChain.invoke(ActionInterceptors.java:50)
        at
org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionI
nterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:58)


        at
org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionI
nterceptors.wrapAction(ActionInterceptors.java:87)
        at
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processAct
ionPerform(PageFlowRequestProcessor.java:2116)
        at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
va:236)
        at
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInt
ernal(PageFlowRequestProcessor.java:556)
        at
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(Pa
geFlowRequestProcessor.java:853)
        at
org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(A
utoRegisterActionServlet.java:631)
        at
org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(PageF
lowActionServlet.java:158)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at
org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlow
Utils.java:1170)
        at
com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.exec
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