--- a/hotspot/src/share/vm/prims/jvm.cpp	Thu May 12 15:15:02 2016 +0000
+++ b/hotspot/src/share/vm/prims/jvm.cpp	Thu May 12 18:46:40 2016 +0000
@@ -3387,14 +3387,14 @@
   return (!access.is_private() && InstanceKlass::cast(current_class)->is_same_class_package(field_class));
 }
 
-// Return the first non-null class loader up the execution stack, or null
-// if only code from the null class loader is on the stack.
+// Return the first user-defined class loader up the execution stack, or null
+// if only code from the bootstrap or platform class loader is on the stack.
 
 JVM_ENTRY(jobject, JVM_LatestUserDefinedLoader(JNIEnv *env))
   for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
     vfst.skip_reflection_related_frames(); // Only needed for 1.4 reflection
     oop loader = vfst.method()->method_holder()->class_loader();
-    if (loader != NULL) {
+    if (loader != NULL && !SystemDictionary::is_platform_class_loader(loader)) {
       return JNIHandles::make_local(env, loader);
     }
   }

--- a/hotspot/test/Makefile	Thu May 12 15:15:02 2016 +0000
+++ b/hotspot/test/Makefile	Thu May 12 18:46:40 2016 +0000
@@ -120,24 +120,33 @@
 TEST_ROOT := $(shell pwd)
 
 # Root of all test results
-ifdef ALT_OUTPUTDIR
-  ABS_BUILD_ROOT = $(ALT_OUTPUTDIR)
+ifdef TEST_OUTPUT_DIR
+  $(shell $(MKDIR) -p $(TEST_OUTPUT_DIR)/jtreg)
+  ABS_TEST_OUTPUT_DIR := \
+    $(shell $(CD) $(TEST_OUTPUT_DIR)/jtreg && $(PWD))
 else
-  ABS_BUILD_ROOT = $(TEST_ROOT)/../build/$(PLATFORM)-$(ARCH)
+  ifdef ALT_OUTPUTDIR
+    ABS_OUTPUTDIR = $(shell $(CD) $(ALT_OUTPUTDIR) && $(PWD))
+  else
+    ABS_OUTPUTDIR = $(shell $(CD) $(TEST_ROOT)/.. && $(PWD))
+  endif
+
+  ABS_PLATFORM_BUILD_ROOT = $(ABS_OUTPUTDIR)
+  ABS_TEST_OUTPUT_DIR := $(ABS_PLATFORM_BUILD_ROOT)/testoutput/$(UNIQUE_DIR)
 endif
-ABS_TEST_OUTPUT_DIR = $(ABS_BUILD_ROOT)/testoutput/$(UNIQUE_DIR)
 
 # Expect JPRT to set PRODUCT_HOME (the product or jdk in this case to test)
 ifndef PRODUCT_HOME
-  # Try to use j2sdk-image if it exists
-  ABS_JDK_IMAGE = $(ABS_BUILD_ROOT)/j2sdk-image
-  PRODUCT_HOME :=                       \
-    $(shell                             \
-      if [ -d $(ABS_JDK_IMAGE) ] ; then \
-         $(ECHO) "$(ABS_JDK_IMAGE)";    \
-       else                             \
-         $(ECHO) "$(ABS_BUILD_ROOT)" ;  \
+  # Try to use images/jdk if it exists
+  ABS_JDK_IMAGE = $(ABS_PLATFORM_BUILD_ROOT)/images/jdk
+  PRODUCT_HOME :=                       		\
+    $(shell                             		\
+      if [ -d $(ABS_JDK_IMAGE) ] ; then 		\
+         $(ECHO) "$(ABS_JDK_IMAGE)";    		\
+       else                             		\
+         $(ECHO) "$(ABS_PLATFORM_BUILD_ROOT)";		\
        fi)
+  PRODUCT_HOME := $(PRODUCT_HOME)
 endif
 
 # Expect JPRT to set JAVA_ARGS (e.g. -server etc.)