[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5748) java.util.Map.get(string) returns null value if there is no value for the key searched.

[Suresh Thummalapenta (JIRA)]

java.util.Map.get(string) returns null value if there is no value for the key searched.
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                 Key: HHH-5748
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5748
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.6.0
            Reporter: Suresh Thummalapenta
            Priority: Minor


We developed a mining-based approach that recovers specifications for APIs of JavaSDK and uses those specifications to detect defects statically. In our study, we found that at various places, return checks are missing in the core component of Hibernate. It would be great if you could analyze and fix those issues.

class: ManagedSessionContext.java
Method: existingSession, Line 124
Missing null check for "sessionMap.get( factory )", since java.util.Map.get(string) returns null value if there is no value for the key searched in the Map

Class: NamedParameterSpecification.java
Method: bind, Line 66
Missing null check for qp.getNamedParameters().get( name ), since get() method returns null value if there is no value for the key searched in the map.

class: PersistentIdentifierBag.java
Method: equalsSnapshot, Line 231
Missing null check on "old" in the statement "Object old = snap.get(id);", since get() method returns null value if there is no value for the key searched in the map.

Class: StructuredCacheEntry.java
Method: destructure, Line: 54
Missing null check on the return of map.get( names[i] ), since get() method returns null value if there is no value for the key searched in the map.



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