Attempt to invoke virtual method 'void com.phonegap.CallbackServer.sendJavascript(java.lang.String)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
35783
problem in calling method in webservice
103137
ObjectDisposeException when trying to send thru a reopened socket
28359
"Methods defined as TestMethod do not support Web service callouts" error when testing apex callout
8533
How do I invoke a Java method when given the method name as a string?
34921
How do I use a class method as a callback function?
144423
"No enclosing instance of type" error while calling method from another class in Android
23999
NullPointerException while parsing XML callout response
108027
Callback functions in Java
54938
Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. \"File\r\n\"
3713
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
63521
How to pass a nullable type to a P/invoked function
128142
java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
80631
NullPointerException but compiling?
146379
Java method dispatch with null argument
150416
How to catch exceptions thrown in callbacks passed to jQuery?