7012088: jump to 0 address because of lack of memory ordering in SignatureHandlerLibrary::add Summary: Write method signature handler under lock to prevent race with growable array resizing Reviewed-by: dsamersoff, dholmes

Merge

7016023: Enable building ARM and PPC from src/closed repository Reviewed-by: dholmes, bdelsart

6588413: Use -fvisibility=hidden for gcc compiles Summary: Add option for gcc 4 and above, define JNIEXPORT and JNIIMPORT to visibility=default, add for jio_snprintf and others since -fvisibility=hidden overrides --version-script definitions. Reviewed-by: kamg, never

Merge

7016998: gcutil class LinearLeastSquareFit doesn't initialize some of its fields Summary: Initialize _sum_x_squared, _intercept and _slope in constructor. Reviewed-by: bobv, coleenp