6440786: Cannot create a ZIP file containing zero entries
Summary: Allow reading and writing of ZIP files with zero entries.
Reviewed-by: alanb
1cc8dd79fd1cd13d36b385196271a29632c67c3b jdk7-b24
bf2517e15f0c0f950e5b3143c4ca11e2df73dcc1 jdk7-b25
5ae7db536e3fcf6be78e45b240a9058095e0ed38 jdk7-b26
67052ac87fc927d048e62ec54ff42adb230d3f7c jdk7-b27
18dc4ba4739a537fd146f77da51db16efce28da2 jdk7-b28
bfe4572fd301a6fcd120373cdb2eff5d2da0c72c jdk7-b29
bee4731164a06ddece1297ae58db24aca6a1c626 jdk7-b30
cd8b8f500face60d1566d850857a7fccadbd383a jdk7-b31
a9f1805e3ba9ca520cad199d522c84af5433e85a jdk7-b32
6838c1a3296aaa3572364d2ce7d70826cee96286 jdk7-b33
90cf935adb353bb0af4b46fb0677e841fd24c000 jdk7-b34