query: NullPointerException using ArrayList.get() in java
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 87189
negative_passages.text: System.NullPointerException
negative_passages.docid: 131552
negative_passages.text: new ArrayList() failing in Java
negative_passages.docid: 140738
negative_passages.text: Does setting Java objects to null do anything anymore?
negative_passages.docid: 8738
negative_passages.text: Should a retrieval method return 'null' or throw an exception when it can't produce the return value?
negative_passages.docid: 92797
negative_passages.text: How to debug NullPointerException in selenium-java
negative_passages.docid: 46857
negative_passages.text: Compiler warning: null reference exception
negative_passages.docid: 137692
negative_passages.text: NullPointerException when working with arrays
negative_passages.docid: 70532
negative_passages.text: NullReferenceException after POST
negative_passages.docid: 119799
negative_passages.text: Android: Issue during Arraylist declaration
negative_passages.docid: 8283
negative_passages.text: Why does null reference print as "null"
negative_passages.docid: 10581
negative_passages.text: Avoiding NullPointerException in Java
negative_passages.docid: 108763
negative_passages.text: How to get the last value of an ArrayList
negative_passages.docid: 73034
negative_passages.text: StringBuilder append() and null values
negative_passages.docid: 28147
negative_passages.text: java: (String[])List.toArray() gives ClassCastException
negative_passages.docid: 5640
negative_passages.text: How to check a string against null in java?
negative_passages.docid: 289
negative_passages.text: What is a NullReferenceException, and how do I fix it?