Error when using java class in php

Question

dear all
when i am using my java class in php page
i am getting below error
Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: Invoke failed: [[o:e24PaymentPipe]]->performPaymentInitialization. Cause: java.lang.NullPointerException Responsible VM: 1.6.0_01@http://java.sun.com/" at: #-9 e24PaymentPipe.performPaymentInitialization(e24PaymentPipe.java:341) #-8 sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source) #-7 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) #0 [internal function]: Java->__call('performPaymentI...', Array) #1 /home/comhtdocs/hdfcpay/HostedPaymentBuy.php(31): Java->performPaymentInitialization() #2 {main}] thrown in /home/comhtdocs/hdfcpay/HostedPaymentBuy.php on line 31
Edited by: arun240 on Jul 25, 2008 8:47 AM

Answer 1

arun240 wrote:
dear all
when i am using my java class in php page
i am getting below error
Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: Invoke failed: [[o:e24PaymentPipe]]->performPaymentInitialization. Cause: java.lang.NullPointerException Responsible VM: 1.6.0_01@http://java.sun.com/" at: #-9 e24PaymentPipe.performPaymentInitialization(e24PaymentPipe.java:341) #-8 sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source) #-7 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) #0 [internal function]: Java->__call('performPaymentI...', Array) #1 /home/comhtdocs/hdfcpay/HostedPaymentBuy.php(31): Java->performPaymentInitialization() #2 {main}] thrown in /home/comhtdocs/hdfcpay/HostedPaymentBuy.php on line 31
Edited by: arun240 on Jul 25, 2008 8:47 AMWell, it seems there's an object (perhaps a PaymentPipe?) pointing to null which you're trying to invoke a method (performPaymentInitialization()?) on. Needles to say: you can do that.
SomeObject so = null;
// ... some more code ...
so.someMethod(); // No can do! A NPE will be thrown!