query: arraylist.size() java null pointer exception
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 130819
negative_passages.text: Nullpointerexception while setting a bean
negative_passages.docid: 45196
negative_passages.text: Calling class method through NULL class pointer
negative_passages.docid: 46944
negative_passages.text: Null pointer Exception - findViewById()
negative_passages.docid: 139651
negative_passages.text: Do Java arrays have a maximum size?
negative_passages.docid: 20020
negative_passages.text: NullPointerException accessing views in onCreate()
negative_passages.docid: 8283
negative_passages.text: Why does null reference print as "null"
negative_passages.docid: 289
negative_passages.text: What is a NullReferenceException, and how do I fix it?
negative_passages.docid: 7176
negative_passages.text: How to deal with "java.lang.OutOfMemoryError: Java heap space" error?
negative_passages.docid: 66284
negative_passages.text: NullPointerException when Creating an Array of objects
negative_passages.docid: 13702
negative_passages.text: Sort ArrayList of strings by length
negative_passages.docid: 87189
negative_passages.text: System.NullPointerException
negative_passages.docid: 37988
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object:
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 137692
negative_passages.text: NullPointerException when working with arrays
negative_passages.docid: 73089
negative_passages.text: Using a long as ArrayList index in java
negative_passages.docid: 46857
negative_passages.text: Compiler warning: null reference exception