query: Nullpointer exception when using HashMap's getValue method in java
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 128316
negative_passages.text: i found Null pointer exception while executing testng in selenium
negative_passages.docid: 73285
negative_passages.text: Null Pointer Exception in XMl Parsing
negative_passages.docid: 109908
negative_passages.text: How to Retrieve value from JTextField in Java Swing?
negative_passages.docid: 128142
negative_passages.text: java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
negative_passages.docid: 58054
negative_passages.text: When is it OK to catch NullPointerException?
negative_passages.docid: 68500
negative_passages.text: hashCode() for an array of objects for use in HashMap
negative_passages.docid: 70294
negative_passages.text: HashMap and int as key
negative_passages.docid: 10818
negative_passages.text: NullPointerException : println needs a message in android
negative_passages.docid: 24517
negative_passages.text: MVC Spring Implementation - error: java.lang.NullPointerException
negative_passages.docid: 98780
negative_passages.text: Test Method throwing null pointer exception on custom setting
negative_passages.docid: 51487
negative_passages.text: How to call a method stored in a HashMap? (Java)
negative_passages.docid: 66284
negative_passages.text: NullPointerException when Creating an Array of objects
negative_passages.docid: 25288
negative_passages.text: How to make HashMap work with Arrays as key?
negative_passages.docid: 153563
negative_passages.text: putExtra treeMap returns HashMap cannot be cast to TreeMap android
negative_passages.docid: 8808
negative_passages.text: Strange Java null behavior in Method Overloading
negative_passages.docid: 15113
negative_passages.text: How to use an array list in Java?