Ambiguity in java generics 1.6 earlier version and the later -



Ambiguity in java generics 1.6 earlier version and the later -

recently encounter weird problem respect java generics. simplified problem snippet below :

public static void main(string[] args) { string s = "hello"; system.out.println(blindlyreturngetobject()); } private static <t> t getobject() { homecoming (t) new object(); } private static <t> t blindlyreturngetobject() { homecoming getobject(); }

in case of jdk 1.6.0_03 , before versions, getting infamous compilation error

type parameters of <t>t cannot determined; no unique maximal instance exists type variable t upper bounds t,java.lang.object

whereas code works in jdk 1.6.0_26 , later versions.

is there anyway rid of issue before version of jdk 1.6 since our build servers still running in before version of jdk 1.6?

while googling related issue, came across bug raised in sun related generics type inference issue.

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6302954

so found fixed in later versions of jdk 1.6.0_20 , hence working in jdk 1.6.0_26

thought worth sharing.

java generics jdk1.6

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