Issue in Object creation concurrently in java web - maven

Question

I have developed maven web project using spring primefaces and run on jboss 5.0 server.
The Application is cloud based and multiple users can access concurrently.
My issue is when create objects concurrently sometimes refer previous object.this is ok with sequentially. But, when called same method in parallel it run as ambiguous way. Is it issue in primefaces?
depositController method:
#ManagedBean(name = "depositController")
#ViewScoped
public class DepositController {
public void depositAcc(ActionEvent actionEvent) {
try {
validate = true;
TrxnObj tempTrxnObj = trxnObj;
if (requiredFieldValidate()) {
this.mobileNoVerify();
if (validate) {
this.amountValidate();
}
} else {
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage message = new FacesMessage();
message.setSeverity(FacesMessage.SEVERITY_ERROR);
message.setSummary("Please Enter the Required Fields");
context.addMessage("ad", message);
return;
}
if (!validate) {
return;
}
if (isRCP) {
if (null == userManager) {
userManager = (UserManager) SpringUtil.getApplicationContext().getBean("userManager");
}
merchant = userManager.getMerchantDetails(AppConstants.TRXN_CODE_WALLET_CASH_IN_WEB, merchantID);
if (null == commonManager) {
commonManager = (CommonManager) SpringUtil.getApplicationContext().getBean("commonManager");
}
//insert txn id
WSRequest request = new WSRequest();
request.setMerchantId(merchantID);
request.setMerchantOutletCode(merchantOutletCode);
request.setCustomerMobileNumber(tempTrxnObj.getMobileNo());
request.setMobileNumber(merchant.getMobileNumber());
request.setPinCode(merchant.getPinCode());
request.setTransactionAmount(tempTrxnObj.getAmount().doubleValue());
if(branchCode!=null && !branchCode.equals("")){
request.setUserName(userId+"-"+branchCode);
}else{
request.setUserName(userId);
}
if (tempTrxnObj.getNote() == null || tempTrxnObj.getNote().isEmpty()) {
request.setNote("Cash In at " + merchantID + " for " + tempTrxnObj.getMobileNo());
} else {
request.setNote(tempTrxnObj.getNote());
}
request.setMerchantTransactionId(getRCPTransactionRef());
CashInRequest cashInRequest = new CashInRequest();
cashInRequest.setWsRequest(request);
CashInResponse cashInResponse = commonManager.callCashInService(cashInRequest);
if (cashInResponse.getWsResponse().getResponseCode() == AppConstants.WS_TRXN_WEB_RES_SUCCESS) {
FacesContext.getCurrentInstance().addMessage("ad", new FacesMessage("Transaction Success: " + cashInResponse.getWsResponse().getResponse()));
receiptObj.setValues(this.trxnObj, locationShortCode, customerName);
recieptPrintEnabled = true;
receiptObj.setRefNumber(cashInResponse.getWsResponse().getReference());
receiptObj.setCusName(userControlObj.getMwtUserWalletDetails().getName());
receiptObj.setUtilityType("CASH IN");
receiptObj.setAccountNumber(userControlObj.getMwtUserWallet().getMobileNo());
receiptObj.setNote("Accepted payment for CASH IN.Thank You.");
reset();
} else {
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage message = new FacesMessage();
message.setSeverity(FacesMessage.SEVERITY_ERROR);
message.setSummary("Transaction Failed");
context.addMessage("ad", message);
}
}
}catch(Exception e){
log.error(e,e)
}
}
DepositAcc.xhtml:
<p:messages id="msgs" for="ad" globalOnly="true"/>
<h:panelGrid columns="9" cellpadding="5" id="add_edit" styleClass="add-form">
<h:outputLabel for="mobileNo" value="*Confirm Mobile No:"/>
<p:inputText id="mobileNo" value="#{depositController.mobileNoCnfrm}" required="true" disabled="#{depositController.trxnObj.mobileNo == null}">
</p:inputText>
<p:message for="mobileNo" display="icon"/>
<h:outputLabel for="amount" value="*Deposit Amount:"/>
<p:inputText id="amount" value="#{depositController.trxnObj.amount}" onkeyup="$(this).val(addCommas($(this).val()))" required="true" disabled="#{depositController.trxnObj.mobileNo == null}">
<f:convertNumber maxFractionDigits="2"
groupingUsed="true"
pattern="#,##0.00"/>
</p:inputText>
<p:message for="amount" display="icon"/>
<h:outputLabel for="amountCnfrm" value="*Confirm Amount:"/>
<p:inputText id="amountCnfrm" value="#{depositController.amountCnfrm}" onkeyup="$(this).val(addCommas($(this).val()))" required="true" disabled="#{depositController.trxnObj.mobileNo == null}">
<f:convertNumber maxFractionDigits="2"
groupingUsed="true"
pattern="#,##0.00"/>
</p:inputText>
<p:message for="amountCnfrm" display="icon"/>
<h:outputLabel for="location" value="*Branch Location:" rendered="#{!depositController.isRCP}"/>
<p:inputText id="location" value="#{depositController.location}" required="true" disabled="true" style="width: 200px" rendered="#{!depositController.isRCP}">
</p:inputText>
<p:message for="location" display="icon" rendered="#{!depositController.isRCP}"/>
<h:outputLabel for="note" value="Note:"/>
<p:inputTextarea id="note" value="#{depositController.trxnObj.note}" disabled="#{depositController.trxnObj.mobileNo == null}"
rows="4" cols="20" counter="counter" maxlength="100"
counterTemplate="({0}/100)">
</p:inputTextarea>
<h:outputText id="counter"/>
<p:message for="note" display="icon"/>
</h:panelGrid>
<h:panelGrid columns="3" cellpadding="5" id="btns" styleClass="add-btn">
<p:commandButton value="Deposit" ajax="true" update=":add:addFields :add:btns :list :dialog" actionListener="#{depositController.depositAcc}"
disabled="#{!depositController.depositEnable}"/>
<p:commandButton value="Reset" update="addFields btns" process="#this"
disabled="#{!depositController.depositEnable}"
actionListener="#{depositController.reset}"/>
<p:commandButton value="View Receipt" onclick="dlg.show()"
disabled="#{!depositController.recieptPrintEnabled}"/>
</h:panelGrid>
</p:fieldset>
</h:form>