diff --git a/buildspec.mk.default b/buildspec.mk.default
index 6303efc..c568a82 100644
--- a/buildspec.mk.default
+++ b/buildspec.mk.default
@@ -115,4 +115,4 @@
 # variable will be changed.  After you have modified this file with the new
 # changes (see buildspec.mk.default), update this to the new value from
 # buildspec.mk.default.
-BUILD_ENV_SEQUENCE_NUMBER := 9
+BUILD_ENV_SEQUENCE_NUMBER := 10
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index 03ffa55..ba4857b 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -57,6 +57,13 @@
 $(full_target): PRIVATE_CLASSPATH:=$(LOCAL_CLASSPATH)
 full_java_lib_deps :=
 
+$(full_target): PRIVATE_BOOTCLASSPATH :=
+ifeq ($(BUILD_OS),linux)
+# You have to set bootclasspath for javadoc manually on linux since Java 6.
+host_jdk_rt_jar := $(dir $(HOST_JDK_TOOLS_JAR))../jre/lib/rt.jar
+$(full_target): PRIVATE_BOOTCLASSPATH := $(host_jdk_rt_jar)
+endif
+
 ifneq ($(LOCAL_IS_HOST_MODULE),true)
 
 ifeq ($(LOCAL_JAVA_LIBRARIES),)
@@ -165,6 +172,7 @@
                 -templatedir $(PRIVATE_CUSTOM_TEMPLATE_DIR) \
                 -templatedir $(PRIVATE_TEMPLATE_DIR) \
                 $(PRIVATE_DROIDDOC_HTML_DIR) \
+                $(addprefix -bootclasspath ,$(PRIVATE_BOOTCLASSPATH)) \
                 $(addprefix -classpath ,$(PRIVATE_CLASSPATH)) \
                 -sourcepath $(PRIVATE_SOURCE_PATH)$(addprefix :,$(PRIVATE_CLASSPATH)) \
                 -d $(PRIVATE_OUT_DIR) \
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 86aa2f3..5f2e8bb 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -16,7 +16,7 @@
 # people who haven't re-run those will have to do so before they
 # can build.  Make sure to also update the corresponding value in
 # buildspec.mk.default and envsetup.sh.
-CORRECT_BUILD_ENV_SEQUENCE_NUMBER := 9
+CORRECT_BUILD_ENV_SEQUENCE_NUMBER := 10
 
 # ---------------------------------------------------------------
 # The product defaults to generic on hardware and sim on sim
diff --git a/core/main.mk b/core/main.mk
index a045992..09f8e5a 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -98,18 +98,15 @@
 endif
 
 
-# The windows build server currently uses 1.6.  This will be fixed.
-ifneq ($(HOST_OS),windows)
-
 # Check for the correct version of java
-java_version := $(shell java -version 2>&1 | head -n 1 | grep '[ "]1\.5[\. "$$]')
+java_version := $(shell java -version 2>&1 | head -n 1 | grep '[ "]1\.6[\. "$$]')
 ifeq ($(strip $(java_version)),)
 $(info ************************************************************)
 $(info You are attempting to build with the incorrect version)
 $(info of java.)
 $(info $(space))
 $(info Your version is: $(shell java -version 2>&1 | head -n 1).)
-$(info The correct version is: 1.5.)
+$(info The correct version is: 1.6.)
 $(info $(space))
 $(info Please follow the machine setup instructions at)
 $(info $(space)$(space)$(space)$(space)http://source.android.com/download)
@@ -118,14 +115,14 @@
 endif
 
 # Check for the correct version of javac
-javac_version := $(shell javac -version 2>&1 | head -n 1 | grep '[ "]1\.5[\. "$$]')
+javac_version := $(shell javac -version 2>&1 | head -n 1 | grep '[ "]1\.6[\. "$$]')
 ifeq ($(strip $(javac_version)),)
 $(info ************************************************************)
 $(info You are attempting to build with the incorrect version)
 $(info of javac.)
 $(info $(space))
 $(info Your version is: $(shell javac -version 2>&1 | head -n 1).)
-$(info The correct version is: 1.5.)
+$(info The correct version is: 1.6.)
 $(info $(space))
 $(info Please follow the machine setup instructions at)
 $(info $(space)$(space)$(space)$(space)http://source.android.com/download)
@@ -133,8 +130,6 @@
 $(error stop)
 endif
 
-endif # windows
-
 $(shell echo 'VERSIONS_CHECKED := $(VERSION_CHECK_SEQUENCE_NUMBER)' \
         > $(OUT_DIR)/versions_checked.mk)
 endif
diff --git a/envsetup.sh b/envsetup.sh
index 21a66c1..48003d7 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -99,6 +99,9 @@
     if [ -n $ANDROID_BUILD_PATHS ] ; then
         export PATH=${PATH/$ANDROID_BUILD_PATHS/}
     fi
+    if [ -n $ANDROID_PRE_BUILD_PATHS ] ; then
+        export PATH=${PATH/$ANDROID_PRE_BUILD_PATHS/}
+    fi
 
     # and in with the new
     CODE_REVIEWS=
@@ -109,6 +112,15 @@
     export ANDROID_BUILD_PATHS=:$(get_build_var ANDROID_BUILD_PATHS):$ANDROID_QTOOLS:$ANDROID_TOOLCHAIN:$ANDROID_EABI_TOOLCHAIN$CODE_REVIEWS
     export PATH=$PATH$ANDROID_BUILD_PATHS
 
+    unset ANDROID_JAVA_TOOLCHAIN
+    if [ -n "$JAVA_HOME" ]; then
+        export ANDROID_JAVA_TOOLCHAIN=$JAVA_HOME/bin
+    fi
+    export ANDROID_PRE_BUILD_PATHS=$ANDROID_JAVA_TOOLCHAIN
+    if [ -n "$ANDROID_PRE_BUILD_PATHS" ]; then
+        export PATH=$ANDROID_PRE_BUILD_PATHS:$PATH
+    fi
+
     unset ANDROID_PRODUCT_OUT
     export ANDROID_PRODUCT_OUT=$(get_abs_build_var PRODUCT_OUT)
     export OUT=$ANDROID_PRODUCT_OUT
@@ -134,6 +146,7 @@
 function set_stuff_for_environment()
 {
     settitle
+    set_java_home
     setpaths
     set_sequence_number
 
@@ -145,7 +158,7 @@
 
 function set_sequence_number()
 {
-    export BUILD_ENV_SEQUENCE_NUMBER=9
+    export BUILD_ENV_SEQUENCE_NUMBER=10
 }
 
 function settitle()
@@ -1056,19 +1069,19 @@
     cd $T/$pathname
 }
 
-# Force JAVA_HOME to point to java 1.5 if it isn't already set
-if [ "$STAY_OFF_MY_LAWN" = "" ]; then
+# Force JAVA_HOME to point to java 1.6 if it isn't already set
+function set_java_home() {
     if [ ! "$JAVA_HOME" ]; then
         case `uname -s` in
             Darwin)
-                export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home
+                export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home
                 ;;
             *)
-                export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
+                export JAVA_HOME=/usr/lib/jvm/java-6-sun
                 ;;
         esac
     fi
-fi
+}
 
 # determine whether arrays are zero-based (bash) or one-based (zsh)
 _xarray=(a b c)