query: A java.lang.NullPointerException
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 11537
negative_passages.text: What is IndexOutOfBoundsException? How can I fix it?
negative_passages.docid: 5640
negative_passages.text: How to check a string against null in java?
negative_passages.docid: 81624
negative_passages.text: Is returning null bad design?
negative_passages.docid: 35016
negative_passages.text: java.lang.NullPointerException at org.primefaces.component.datatable.feature.FilterFeature.filter
negative_passages.docid: 8808
negative_passages.text: Strange Java null behavior in Method Overloading
negative_passages.docid: 10867
negative_passages.text: How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException?
negative_passages.docid: 120071
negative_passages.text: Checking for a null int value from a Java ResultSet
negative_passages.docid: 108336
negative_passages.text: Nullable Object must have a value #2
negative_passages.docid: 81565
negative_passages.text: getClass().getResource() always returning null
negative_passages.docid: 6882
negative_passages.text: try catch exception always returns null
negative_passages.docid: 140738
negative_passages.text: Does setting Java objects to null do anything anymore?
negative_passages.docid: 80631
negative_passages.text: NullPointerException but compiling?
negative_passages.docid: 96046
negative_passages.text: Static fields on a null reference in Java
negative_passages.docid: 50046
negative_passages.text: java : non-static variable cannot be referenced from a static context Error
negative_passages.docid: 94342
negative_passages.text: Java - class.getResource returns null
negative_passages.docid: 289
negative_passages.text: What is a NullReferenceException, and how do I fix it?