JDK-8003263 : redundant cast build failure after 8003120
  • Type: Bug
  • Component: core-libs
  • Sub-Component: javax.naming
  • Affected Version: 8
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2012-11-12
  • Updated: 2013-02-04
  • Resolved: 2012-11-16
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8 b66Fixed
Related Reports
Relates :  
8003120 adds a new line

   InputStream istream = (InputStream)resources.next();

but resources is already of type NamingEnumeration<InputStream>.

Building now shows

../../../src/share/classes/com/sun/naming/internal/ResourceManager.java:563: warning: [cast] redundant cast to InputStream
                        InputStream istream = (InputStream)resources.next();

verified in b74

There could be more enhancement, but build failure must be fixed asap. 1. It should attempt to close all resources even an IOException is thrown during close. 2. In fact, it looks like the resources object here is of type InputStreamEnumeration (in com/sun/naming/internal/VersionHelper12.java), with an open-on-nextElement style. This means we can completely remove the while (resources.hasMore()) block.