8079841: Buffer underflow with empty zip entry names
Summary: check for zero-length entry name before accessing "last" byte
Reviewed-by: sherman, martin
[JavaPackage ]
[JavaPackage java]
[JavaPackage java]
[JavaPackage java.lang]
[JavaClass java.lang.String]
[JavaClass java.lang.System]
123
12 1
[JavaClass java.lang.StringBuffer]
abcdef
3.14
23428.34