--- old/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java	2014-10-02 10:23:42.312442925 +0200
+++ new/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java	2014-10-02 10:23:42.212438763 +0200
@@ -85,6 +85,7 @@
 import jdk.internal.org.objectweb.asm.Handle;
 import jdk.internal.org.objectweb.asm.MethodVisitor;
 import jdk.internal.org.objectweb.asm.Type;
+import jdk.nashorn.internal.objects.annotations.SpecializedFunction.LinkLogic;
 
 /**
  * Base class for all method generating classes.
@@ -97,7 +98,7 @@
     private final Type returnType;
     private final Type[] argumentTypes;
 
-    static final Type EMPTY_LINK_LOGIC_TYPE = Type.getType("Ljdk/nashorn/internal/objects/annotations/SpecializedFunction$LinkLogic$Empty;");
+    static final Type EMPTY_LINK_LOGIC_TYPE = Type.getType(LinkLogic.getEmptyLinkLogicClass());
 
     MethodGenerator(final MethodVisitor mv, final int access, final String name, final String descriptor) {
         super(Main.ASM_VERSION, mv);
--- old/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/ScriptClassInfo.java	2014-10-02 10:23:42.732460407 +0200
+++ new/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/ScriptClassInfo.java	2014-10-02 10:23:42.632456245 +0200
@@ -38,6 +38,7 @@
 import jdk.nashorn.internal.objects.annotations.ScriptClass;
 import jdk.nashorn.internal.objects.annotations.Setter;
 import jdk.nashorn.internal.objects.annotations.SpecializedFunction;
+import jdk.nashorn.internal.objects.annotations.SpecializedFunction.LinkLogic;
 import jdk.nashorn.internal.objects.annotations.Where;
 import jdk.nashorn.internal.tools.nasgen.MemberInfo.Kind;
 
@@ -55,8 +56,8 @@
     static final String SETTER_ANNO_DESC        = Type.getDescriptor(Setter.class);
     static final String PROPERTY_ANNO_DESC      = Type.getDescriptor(Property.class);
     static final String WHERE_ENUM_DESC         = Type.getDescriptor(Where.class);
+    static final String LINK_LOGIC_DESC         = Type.getDescriptor(LinkLogic.class);
     static final String SPECIALIZED_FUNCTION    = Type.getDescriptor(SpecializedFunction.class);
-    static final String LINK_LOGIC_DESC         = "Ljdk/nashorn/internal/objects/annotations/SpecializedFunction$LinkLogic;";
 
     static final Map<String, Kind> annotations = new HashMap<>();
 
--- old/make/BuildNashorn.gmk	2014-10-02 10:23:43.184479221 +0200
+++ new/make/BuildNashorn.gmk	2014-10-02 10:23:43.092475392 +0200
@@ -29,6 +29,7 @@
 -include $(SPEC)
 include MakeBase.gmk
 include JavaCompilation.gmk
+include SetupJavaCompilers.gmk
 
 JDK_CLASSES := $(subst $(SPACE),$(PATH_SEP),$(strip $(addprefix $(JDK_OUTPUTDIR)/modules/, \
       java.base java.logging java.scripting)))
@@ -63,10 +64,10 @@
 
 # Build nasgen
 $(eval $(call SetupJavaCompilation,BUILD_NASGEN, \
-    SETUP := GENERATE_NEWBYTECODE_DEBUG, \
+    SETUP := GENERATE_OLDBYTECODE, \
     SRC := $(NASGEN_SRC) $(ASM_SRC), \
     BIN := $(NASHORN_OUTPUTDIR)/nasgen_classes, \
-    ADD_JAVAC_FLAGS := -cp $(NASHORN_OUTPUTDIR)/nashorn_classes))
+    ADD_JAVAC_FLAGS := -bootclasspath "$(BOOT_RTJAR)$(PATH_SEP)$(NASHORN_OUTPUTDIR)/nashorn_classes"))
 
 # Nasgen needs nashorn classes
 $(BUILD_NASGEN): $(BUILD_NASHORN)