JDK-7012406 : JSR 292: target typing cast and parenthesis
  • Type: Bug
  • Component: tools
  • Sub-Component: javac
  • Affected Version: 7
  • Priority: P4
  • Status: Closed
  • Resolution: Cannot Reproduce
  • OS: generic
  • CPU: unknown
  • Submitted: 2011-01-14
  • Updated: 2011-01-14
  • Resolved: 2011-01-14
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JDK 7
7Resolved
Related Reports
Relates :  
JDK-6992698 - JSR 292: remove support for transient syntax in polymorphic signature calls
Description
One potential bug:  The switch statement in Infer.java mentions tags TYPECAST and EXEC.

It should probably mention PARENS also, if only to assert that env. expressions of that sort don't appear.  Otherwise we could get confusion some day about the meaning of this code:

	String s = (String)( mh.invokeExact() );

It should be the same as this code:

	String s = (String) mh.invokeExact();

But the switch statement might make it act like this:

	String s = (Object)( mh.invokeExact() );
Comments
EVALUATION We should skip parenthesis when inferring target type in polymorphic signature calls.
14-01-2011