query: Row row = sheet.getRow(rowNumber) returns java.lang.nullpointer exception even when row exist in Excel sheet. I am using Apache POI
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 124496
negative_passages.text: Database.SaveResult.getId() returns null
negative_passages.docid: 73120
negative_passages.text: Nullpointerexception when trying to send data from activity to class
negative_passages.docid: 28203
negative_passages.text: System.QueryException: List has no rows for assignment to SObject
negative_passages.docid: 128142
negative_passages.text: java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
negative_passages.docid: 46944
negative_passages.text: Null pointer Exception - findViewById()
negative_passages.docid: 14419
negative_passages.text: How to use \multirow
negative_passages.docid: 79586
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object
negative_passages.docid: 87728
negative_passages.text: ArgumentNullException or NullReferenceException from extension method?
negative_passages.docid: 92797
negative_passages.text: How to debug NullPointerException in selenium-java
negative_passages.docid: 75918
negative_passages.text: how to get true or false using execute() in Java Statement
negative_passages.docid: 5640
negative_passages.text: How to check a string against null in java?
negative_passages.docid: 480
negative_passages.text: What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
negative_passages.docid: 124471
negative_passages.text: Comparing nullable column values using "IS NULL" versus "= NULL"
negative_passages.docid: 56860
negative_passages.text: java.sql.SQLException: Column count doesn't match value count at row 1
negative_passages.docid: 93935
negative_passages.text: SObject row was retrieved via SOQL without querying the requested field:
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?