3. Reliability

Reliability: Introduction

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  DCL51-J. Do not shadow or obscure identifiers in subscopes
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  DCL52-J. Do not declare more than one variable per declaration
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  DCL54-J. Use meaningful symbolic constants to represent literal values in program logic
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  DCL55-J. Properly encode relationships in constant definitions
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  ERR50-J. Use exceptions only for exceptional conditions
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  ERR54-J. Use a try-with-resources statement to safely handle closeable resources
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  EXP55-J. Use the same type for the second and third operands in conditional expressions
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  MET55-J. Return an empty array or collection instead of a null value for methods that return an array or collection
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  MSC58-J. Prefer using iterators over enumerations
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  MSC60-J. Do not use assertions to verify the absence of runtime errors
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  OBJ53-J. Do not use direct buffers for short-lived, infrequently used objects
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  OBJ55-J. Remove short-lived objects from long-lived container objects
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  SEC56-J. Do not serialize direct handles to system resources