Value is not a valid option

[sarma <ss...@mahindrabt.com>]

Hi,
  i am using two selectonemenus in my application

  one selectone     is   for host (system)
  second selectone is  for  cpu  (cpus of the system)
  
  if i select first host (any hostname)the value change listeners fires and
it gives
  the corresponding cpus  of the host from the database and sets to second 
selectonemenu .
 but  when i submitted to a next form
 
i am getting a error
 Value is not a valid option
 
This is jsp code. 


<h:outputText value="SelectHOST "/></th> 
<h:panelGroup>

<h:selectOneMenu id="hostids" value="#{HRselforeachcpuanduser.users}" 
valueChangeListener="#{HRselforeachcpuanduser.hostSelection}"
onchange="submit();"immediate="true" required="true"> 
<f:selectItem itemValue="" itemLabel=""/> 
<f:selectItems value="#{HRselforeachcpuanduser.hosts}"/> 
</h:selectOneMenu> 
<h:message for="hostids" style="color:red"/> 
</h:panelGroup> <br> 
<h:outputText value="SelectCPU" /> 
<h:panelGroup> 
<h:selectOneMenu id="cpuids" value="#{HRselforeachcpuanduser.cpuid}" > 
<f:selectItems value="#{HRselforeachcpuanduser.cpuids}"/> 
</h:selectOneMenu> 
<h:message for="cpuids" style="color:red"/> 
</h:panelGroup> 
  
Corresponding java code 
// this is for value change listener 

public void hostSelection(ValueChangeEvent e) { 
FacesContext context = FacesContext.getCurrentInstance(); 
hostid=(String) e.getNewValue(); 
getCpuids(); 
context.renderResponse(); 
} 
//this is for host select 

public Map getHosts(){ 
try{ 
openConnection(); 
selhostnames=new HashMap(); 
String str="select distinct hostid from system_cpu"; 
st=con.createStatement(); 
rs=st.executeQuery(str); 

while(rs.next()){ 
hostname=rs.getString("hostid"); 
System.out.println(hostname); 
selhostnames.put(hostname,hostname); 
} 
return selhostnames; 
} 

public String getHost(){ 
return hostselected; 
} 
public void setHost(String hostselected){ 
this.hostselected = hostselected; 
} 

//this is for cpu selection 
public Map getCpuids(){ 
try{ 

if(hostid==null){ 
System.out.println("if it is null"); // imp note 
return selcpunames; 
} 
openConnection(); 
String str="select distinct cpuid from system_cpu where hostid=?"; 
System.out.println("setting cpuids from host"); 
ps=con.prepareStatement(str); 
ps.setString(1,hostid); 
ps.execute(); 
rs=ps.getResultSet(); 
while(rs.next()){ 
cpuname=rs.getString("cpuid"); 
System.out.println(cpuname); 
selcpunames.put(cpuname,cpuname); 
} 
return selcpunames; 
} 


public void setCpuid(String cpuid){ 
this.cpuid=cpuid; 
} 
public String getCpuid(){ 

return cpuid; 
} 



When I am running 
If its null // in tomcat 

And 

cpuids": Value is not a valid option. 

What is the problem with my code please tell and what to change 

if any one has guts to solve this problem please solve

with regards
shannu sarma
  
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