8170648: Move java.net.http package out of Java SE to incubator namespace

Co-authored-by: Chris Hegarty <chris.hegarty@oracle.com>
Co-authored-by: Daniel Fuchs <daniel.fuchs@oracle.com>
Co-authored-by: Pavel Rappo <pavel.rappo@oracle.com>
Co-authored-by: Sergey Kuksenko <sergey.kuksenko@oracle.com>
Co-authored-by: Anthony Vanelverdinghe <anthony.vanelverdinghe@gmail.com>
Reviewed-by: chegar, dfuchs, michaelm, prappo, skuksenko

make/Javadoc.gmk

@@ -499,6 +499,21 @@ TARGETS += $(httpserver)
 
 ################################################################################
 
+$(eval $(call SetupJavadocGeneration, httpclient, \
+    MODULES := jdk.incubator.httpclient, \
+    PACKAGES := \
+        jdk.incubator.http, \
+    API_ROOT := jre, \
+    DEST_DIR := incubator/httpclient/spec, \
+    TITLE := Java™ HTTP Client API (incubator module), \
+    FIRST_COPYRIGHT_YEAR := 2015, \
+    DISABLED_DOCLINT := accessibility missing syntax, \
+))
+
+TARGETS += $(httpclient)
+
+################################################################################
+
 $(eval $(call SetupJavadocGeneration, jsobject, \
     MODULES := jdk.jsobject, \
     PACKAGES := netscape.javascript, \

make/common/Modules.gmk

@@ -48,7 +48,6 @@ BOOT_MODULES += \
     java.base \
     java.datatransfer \
     java.desktop \
-    java.httpclient \
     java.instrument \
     java.logging \
     java.management \
@@ -98,6 +97,7 @@ PLATFORM_MODULES += \
 
 PLATFORM_MODULES += \
     java.compiler \
+    jdk.incubator.httpclient \
     java.scripting \
     java.security.jgss \
     java.smartcardio \