National Institute of Standards and Technology
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Test case 142485

Description

CWE: 690 Unchecked return value is null, leading to a null pointer dereference.
BadSource: Use a custom method which may return null
GoodSource: Use a custom method that never returns null
Sinks: trim
GoodSink: Check data for null before calling trim()
BadSink : Call trim() on possibly null object
Flow Variant: 52 Data flow: data passed as an argument from one method to another to another in three different classes in the same package

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