query: Null object reference on Button Click
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 146476
negative_passages.text: Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
negative_passages.docid: 79477
negative_passages.text: Why is "null" present in C# and Java?
negative_passages.docid: 73285
negative_passages.text: Null Pointer Exception in XMl Parsing
negative_passages.docid: 98866
negative_passages.text: Null Pointer Exception on getGraphics()
negative_passages.docid: 131864
negative_passages.text: Member '' cannot be accessed with an instance reference
negative_passages.docid: 24249
negative_passages.text: When is the Killing form null?
negative_passages.docid: 150853
negative_passages.text: An object reference is required to access non-static member
negative_passages.docid: 140951
negative_passages.text: why (object) NULL or new stdClass IN a php function?
negative_passages.docid: 138823
negative_passages.text: Why cast null to Object?
negative_passages.docid: 149666
negative_passages.text: Why can't a null-reference exception name the object that has a null reference?
negative_passages.docid: 8283
negative_passages.text: Why does null reference print as "null"
negative_passages.docid: 3624
negative_passages.text: Apex errors with Custom button to add existing records on a custom object
negative_passages.docid: 9683
negative_passages.text: How to use GetSObject to retrieve related data in a null safe manner?
negative_passages.docid: 134689
negative_passages.text: Setting an object to null vs Dispose()
negative_passages.docid: 114816
negative_passages.text: Is null reference possible?
negative_passages.docid: 7935
negative_passages.text: CS0120: An object reference is required for the nonstatic field, method, or property 'foo'