While compiling in windows, observed two warnings in webkit which should be fixed:

1.
\rt\modules\web\src\main\native\source\javascriptcore\runtime\regexpprototype.cpp(148): warning C4700: uninitialized local variable 'string' used

The fix will be taken from the changeset https://trac.webkit.org/changeset/200338

This changeset contains many warning fixes. But i will be taking now the fix only for file RegExpPrototype.cpp (https://trac.webkit.org/changeset/200338/trunk/Source/JavaScriptCore/runtime/RegExpPrototype.cpp). When i encounter more warnings, i can take more fixes if required.

2. \rt\modules\web\src\main\native\Source\WebCore\platform\java\api\BackForwardListJava.cpp(72): warning C4190: 'createEntry' has C-linkage specified, but returns UDT 'JLocalRef<jobject>' which is incompatible with C [\rt\modules\web\build\win\Release\Source\WebCore\WebCore.vcxproj]