view common/makefiles/JavaCompilation.gmk @ 13312:a8e45429e01e

7147464: Java crashed while executing method with over 8k of dneg operations Summary: replace recursive method with iterative Reviewed-by: kvn, twisti Contributed-by: dean.long@oracle.com
author dlong
date Mon, 16 Jul 2012 15:31:18 -0400
parents 6ec26f6cc53e
children bd88bb8dd3af
line wrap: on
line source
#
# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

# The complexity of this makefile is not the fault of make, but the fault
# of javac and javah. The basic problems are:
#
#    1) Compiling a single Java source file unpredictably generates anything
#       between zero (0!) and an infinite number of .class files!
#    2) There is no hint, for which classes javah needs to be run,
#       and it happily generates .h files for classes with no native methods.
#    3) javac and javah do not cleanup anything, for example if an internal
#       class (potentially with native methods) is removed from a Java source file.
#
# This makefile is a tribute to GNU make. And yes, it was harder to write than it is
# to read. The include/excludes of directories and files are only a temporary measure
# to work around the messy jdk sources that put platform specific code in src/share/classes.
#
# We should move most of the functionality of this makefile into a
# smart javac/javah/javadoc/jar combo tool. sjavac ?
#
# I.e. 1) It always generates a single output, a zip-file from a number of source roots.
#         The zip file contains information that enable incremental builds with full 
#         dependency tracking between packages.
#      2) It automatically generates the right .h files.
#      3) It keeps its house clean.
#      *) Generates intermediate files to be used for javadoc generation later.
#      and does all the other useful things that this makefile does, such as:
#          use all cores for compilation, reuse the running JVM for all compilations,
#          and has pubapi dependency tracking to minimize the number of files
#          that need to be recompiled during an incremental build.
# 
# A zip file, or several zip files combined, can then be converted to a .jar file, or to a .jmod file.
#
# This would make this makefile much much simpler. I.e. make can be used
# for its real purpose, track dependencies and trigger a recompile if a
# dependency has changed.
#
# When you read this source. Remember that $(sort ...) has the side effect
# of removing duplicates. It is actually this side effect that is
# desired whenever sort is used below!

ifeq  (,$(_MAKEBASE_GMK))
    $(error You must include MakeBase.gmk prior to including JavaCompilation.gmk)
endif

FALSE_FIND_PATTERN:=-name FILE_NAME_THAT_DOESNT_EXIST

# If compilation of java package fails, then the public api file for that
# package will not be genereated. We add this fallback rule to generate
# an empty pubapi file. 
%.api:
	if test ! -f $@; then $(MKDIR) -p $(@D); $(TOUCH) $@; fi

define SetupJavaCompiler
    # param 1 is for example BOOT_JAVAC or NEW_JAVAC
    # This is the name later used to decide which java compiler to use.
    # param 2-9 are named args.
    #   JVM:=The jvm used to run the javac/javah command
    #   JAVAC:=The javac jar and bootstrap classpath changes, or just bin/javac if JVM is left out
    #   JAVAH:=The javah jar and bootstrap classpath changes, or just bin/javah if JVM is left out
    #   FLAGS:=Flags to be supplied to javac
    #   MODE:=SINGLE_THREADED_BATCH (primarily for old javac) or MULTI_CORE_CONCURRENT
    #      only for MULTI_CORE_CONCURRENT are the options below relevant:
    #   SERVER_DIR:=Use a javac server (-XDserver) and store the server related files here
    #   SERVER_JVM:=Use this JVM for the server. Defaults to the JVM above.
    #   USE_DEPS:=true means use -XDdeps,-XDpubapi and -XDnativeapi to track java dependencies
    $(if $2,$1_$(strip $2))
    $(if $3,$1_$(strip $3))
    $(if $4,$1_$(strip $4))
    $(if $5,$1_$(strip $5))
    $(if $6,$1_$(strip $6))
    $(if $7,$1_$(strip $7))
    $(if $8,$1_$(strip $8))
    $(if $9,$1_$(strip $9))

    ifeq ($$($1_MODE),MULTI_CORE_CONCURRENT)
	ifneq (,$$($1_SERVER_DIR))
            # A javac server has been requested.
            # The port file contains the tcp/ip on which the server listens
            # and the cookie necessary to talk to the server.
            $1_JAVAC_PORTFILE:=$$($1_SERVER_DIR)/$1.port
            ifeq ($$($1_SERVER_JVM),)
                # You can use a different JVM to run the background javac server.
                # But if not set, it defaults to the same JVM that is used to start
                # the javac command.
                $1_SERVER_JVM:=$$($1_JVM)
            endif
            # Set the $1_REMOTE to spawn a background javac server.
	    $1_REMOTE:=-XDserver:portfile=$$($1_JAVAC_PORTFILE),poolsize=$(JAVAC_SERVER_CORES),javac=$$(subst $$(SPACE),%20,$$(subst $$(COMMA),%2C,$$(strip $$($1_SERVER_JVM) $$($1_JAVAC))))
        endif
    endif
endef

define SetupArchive
    # param 1 is for example ARCHIVE_MYPACKAGE
    # param 2 are the dependecies
    # param 3,4,5,6,7,8,9 are named args.
    #    SRCS:=List of directories in where to find files to add to archive
    #    SUFFIXES:=File suffixes to include in jar
    #    INCLUDES:=List of directories/packages in SRCS that should be included
    #    EXCLUDES:=List of directories/packages in SRCS that should be excluded
    #    EXCLUDE_FILES:=List of files in SRCS that should be excluded
    #    EXTRA_FILES:=List of files in SRCS that should be included regardless of suffix match.
    #    JAR:=Jar file to create
    #    MANIFEST:=Optional manifest file template.
    #    JARMAIN:=Optional main class to add to manifest
    #    JARINDEX := 
    #    SKIP_METAINF:=Set to prevent contents of an META-INF directory to be automatically 
    #                  added to the archive.
    #    EXTRA_MANIFEST_ATTR:=Extra attribute to add to manifest.
    $(if $3,$1_$(strip $3))
    $(if $4,$1_$(strip $4))
    $(if $5,$1_$(strip $5))
    $(if $6,$1_$(strip $6))
    $(if $7,$1_$(strip $7))
    $(if $8,$1_$(strip $8))
    $(if $9,$1_$(strip $9))
    $(if $(10),$1_$(strip $(10)))
    $(if $(11),$1_$(strip $(11)))
    $(if $(12),$1_$(strip $(12)))
    $(if $(13),$1_$(strip $(13)))
    $(if $(14),$1_$(strip $(14)))
    $(if $(15),$1_$(strip $(15)))

    $1_JARMAIN:=$(strip $$($1_JARMAIN))
    $1_JARNAME:=$$(notdir $$($1_JAR))
    $1_MANIFEST_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_manifest
    $1_DELETESS_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_deletess
    $1_DELETES_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_deletes
    $1_PUBAPI_NOTIFICATIONS_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_pubapi_notifications
    $1_NATIVEAPI_NOTIFICATIONS_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_native_notifications
    $1_NATIVEAPI_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_native
    $1_BIN:=$$(dir $$($1_JAR))

    ifeq (,$$($1_SUFFIXES))
        # No suffix was set, default to classes.
        $1_SUFFIXES:=.class
    endif
    # Convert suffixes to a find expression
    $1_FIND_PATTERNS:=$(FALSE_FIND_PATTERN) $$(patsubst %,$(SPACE)-o$(SPACE)-name$(SPACE)$(DQUOTE)*%$(DQUOTE),$$($1_SUFFIXES))
    # On windows, a lot of includes/excludes risk making the command line too long, so 
    # writing the grep patterns to files.
    ifneq (,$$($1_INCLUDES))
        $1_GREP_INCLUDE_PATTERNS:=$$(foreach src,$$($1_SRCS),\
					$$(addprefix $$(src)/,$$($1_INCLUDES)))
        $$(eval $$(call ListPathsSafelyNow,$1_GREP_INCLUDE_PATTERNS,\n, \
			>> $$($1_BIN)/_the.$$($1_JARNAME)_include))
        $1_GREP_INCLUDES:=| $(GREP) -f $$($1_BIN)/_the.$$($1_JARNAME)_include
    endif
    ifneq (,$$($1_EXCLUDES)$$($1_EXCLUDE_FILES))
        $1_GREP_EXCLUDE_PATTERNS:=$$(foreach src,$$($1_SRCS),$$(addprefix $$(src)/,\
		$$($1_EXCLUDES) $$($1_EXCLUDE_FILES)))
        $$(eval $$(call ListPathsSafelyNow,$1_GREP_EXCLUDE_PATTERNS,\n, \
			>> $$($1_BIN)/_the.$$($1_JARNAME)_exclude))
        $1_GREP_EXCLUDES:=| $(GREP) -v -f $$($1_BIN)/_the.$$($1_JARNAME)_exclude
    endif

    ifneq (,$$($1_JARINDEX))
      $1_JARINDEX = (cd $$(dir $$@) && $(JAR) -i $$(notdir $$@))
    else
      $1_JARINDEX = true
    endif
    # When this macro is run in the same makefile as the java compilation, dependencies are transfered
    # in make variables. When the macro is run in a different makefile than the java compilation, the 
    # dependencies need to be found in the filesystem.
    $1_ALL_SRCS:=$$(foreach src,$$($1_SRCS),$$(shell ($(FIND) $$(src) -type f \
			-a \( $$($1_FIND_PATTERNS) \) $$($1_GREP_INCLUDES) \
			$$($1_GREP_EXCLUDES) && $(ECHO) $$($1_EXTRA_FILES))))
    ifeq (,$$($1_SKIP_METAINF))
        $1_ALL_SRCS+=$$(foreach src,$$($1_SRCS),$$(shell $(FIND) $$(src)/META-INF -type f 2> /dev/null))
    endif


    # Utility macros, to make the shell script receipt somewhat easier to dechipher.

    # The capture contents macro finds all files (matching the patterns, typically
    # .class and .prp) that are newer than the jar-file, ie the new content to be put into the jar.
    $1_CAPTURE_CONTENTS=$$(foreach src,$$($1_SRCS),(($(FIND) $$(src) -type f -a \( $$($1_FIND_PATTERNS) \) -a -newer $$@ $$($1_GREP_INCLUDES) $$($1_GREP_EXCLUDES) && $(ECHO) $$($1_EXTRA_FILES)) | $(SED) 's|$$(src)/||g' > $$(src)/_the.$$($1_JARNAME)_contents) && )
    # The capture metainf macro finds all files below the META-INF directory that are newer than the jar-file.
    ifeq (,$$($1_SKIP_METAINF))
        $1_CAPTURE_METAINF =$$(foreach src,$$($1_SRCS),($(FIND) $$(src)/META-INF -type f -a -newer $$@ 2> /dev/null | $(SED) 's|$$(src)/||g' >> $$(src)/_the.$$($1_JARNAME)_contents ) && )
    endif
    # The capture deletes macro finds all deleted files and concatenates them. The resulting file
    # tells us what to remove from the jar-file.
    $1_CAPTURE_DELETES=$$(foreach src,$$($1_SRCS),($(FIND) $$(src) -name _the.package.deleted -newer $$@ -exec $(SED) 's|$$(src)||g' \{\} >> $$($1_DELETES_FILE) \;) &&)
    # The capture pubapi notifications scans for pubapi change notifications. If such notifications are
    # found, then we will build the classes leading up to the jar again, to take into account the new timestamps
    # on the changed pubapi files.
    $1_CAPTURE_PUBAPI_NOTIFICATIONS=$$(foreach src,$$($1_SRCS),\
                    (cd $$(src) && \
                    $(FIND) . -name _the.package.api.notify -exec dirname \{\} \; >> $$($1_PUBAPI_NOTIFICATIONS_FILE) ; \
                    true) &&)
    # The update contents macro updates the jar file with the previously capture contents.
    $1_UPDATE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                    (cd $$(src) && \
                     if [ -s _the.$$($1_JARNAME)_contents ]; then \
                         $(ECHO) "  updating" `$(WC) -l _the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'` files && \
                         $(JAR) uf $$@ @_the.$$($1_JARNAME)_contents; \
                     fi) &&)
    # The s-variants of the above macros are used when the jar is created from scratch.
    $1_SCAPTURE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                    (($(FIND) $$(src) -type f -a \( $$($1_FIND_PATTERNS) \) $$($1_GREP_INCLUDES) \
			$$($1_GREP_EXCLUDES) && $(ECHO) $$($1_EXTRA_FILES)) | $(SED) 's|$$(src)/||g' > \
			$$(src)/_the.$$($1_JARNAME)_contents) && )

    ifeq (,$$($1_SKIP_METAINF))
        $1_SCAPTURE_METAINF=$$(foreach src,$$($1_SRCS),\
                    ($(FIND) $$(src)/META-INF -type f 2> /dev/null | $(SED) 's|$$(src)/||g' >> \
			$$(src)/_the.$$($1_JARNAME)_contents) && )
    endif
    $1_SUPDATE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                    (cd $$(src) && $(JAR) uf $$@ @$$(src)/_the.$$($1_JARNAME)_contents) &&)

    # The TOUCH macro is used to make sure all timestamps are identical for package files and the pubapi files.
    # If we do not do this, we get random recompilations, the next time we run make, since the order of package building is random,
    # ie independent of package --dependes on-> public api of another package. This is of course
    # due to the fact that Java source often (always?) has circular dependencies. (Thus there is no correct order
    # to compile packages, and we can just as well do them in a random order. Which we do.)
    $1_TOUCH_API_FILES=$$(foreach src,$$($1_SRCS),\
                    ($(FIND) $$(src) -name _the.package.api -exec $(TOUCH) -r $$($1_JAR) \{\} \; ; true) && \
                    ($(FIND) $$(src) -name _the.package -exec $(TOUCH) -r $$($1_JAR) \{\} \; ; true) &&)
    # Use a slightly shorter name for logging, but with enough path to identify this jar.
    $1_NAME:=$$(subst $$(OUTPUT_ROOT)/,,$$($1_JAR))
    # Here is the rule that creates/updates the jar file.
    $$($1_JAR) : $2 $$($1_ALL_SRC)
	$(MKDIR) -p $$($1_BIN)
	if [ -n "$$($1_MANIFEST)" ]; then \
		$(SED) -e "s#@@RELEASE@@#$(RELEASE)#"           \
		       -e "s#@@COMPANY_NAME@@#$(COMPANY_NAME)#" $$($1_MANIFEST) > $$($1_MANIFEST_FILE); \
	else \
		$(RM) $$($1_MANIFEST_FILE) && $(TOUCH) $$($1_MANIFEST_FILE); \
	fi
	if [ -n "$$(strip $$($1_JARMAIN))" ]; then \
		$(ECHO) "Main-Class: $$(strip $$($1_JARMAIN))" >> $$($1_MANIFEST_FILE); \
	fi
	if [ -n "$$($1_EXTRA_MANIFEST_ATTR)" ]; then \
		$(PRINTF) "$$($1_EXTRA_MANIFEST_ATTR)\n" >> $$($1_MANIFEST_FILE); \
	fi
	+if [ -s $$@ ]; then \
		$(RM) -r $$($1_PUBAPI_NOTIFICATIONS_FILE) && \
		$$($1_CAPTURE_PUBAPI_NOTIFICATIONS) \
		if [ -s $$($1_PUBAPI_NOTIFICATIONS_FILE) ]; then \
			$(ECHO) Public api change detected in: && \
			$(CAT) $$($1_PUBAPI_NOTIFICATIONS_FILE) | $(TR) '/' '.' | $(SED) 's|^..||g' | $(SED) 's|\.$$$$||g' | $(AWK) '{print "  "$$$$1}' && \
			$$(foreach src,$$($1_SRCS),($(FIND) $$(src) -name _the.package.api.notify $(FIND_DELETE); true) &&) \
			$(MAKE) -f $(word 1,$(MAKEFILE_LIST)) $$($1_JAR) ; \
		else \
			$(ECHO) Modifying $$($1_NAME) && \
			$$($1_CAPTURE_CONTENTS) \
			$$($1_CAPTURE_METAINF) \
			$(RM) $$($1_DELETES_FILE) && \
			$$($1_CAPTURE_DELETES) \
			$(CAT) $$($1_DELETES_FILE) > $$($1_DELETESS_FILE) && \
			if [ -s $$($1_DELETESS_FILE) ]; then \
				$(ECHO) "  deleting" `$(WC) -l $$($1_DELETESS_FILE) | $(AWK) '{ print $$$$1 }'` files && \
	                        $(ZIP) -q -d $$@ `$(CAT) $$($1_DELETESS_FILE)` ; \
			fi && \
			$$($1_UPDATE_CONTENTS) true && \
			$$($1_JARINDEX) && \
			$$($1_TOUCH_API_FILES) true && \
			$$(foreach src,$$($1_SRCS),($(FIND) $$(src) -name _the.package.api.notify $(FIND_DELETE); true) &&) true ; \
		fi ; \
	else \
		$(ECHO) Creating $$($1_NAME) && $(JAR) cfm $$@ $$($1_MANIFEST_FILE) && \
	        $$($1_SCAPTURE_CONTENTS) \
		$$($1_SCAPTURE_METAINF) \
		$$($1_SUPDATE_CONTENTS) \
		$$($1_JARINDEX) && \
		$$($1_TOUCH_API_FILES) true && \
		$(RM) -r $$($1_NATIVEAPI_NOTIFICATIONS_FILE) $$($1_NATIVEAPI_FILE) && \
		$$(foreach src,$$($1_SRCS),($(FIND) $$(src) -name "*.notify" $(FIND_DELETE); true) &&) true ; \
	fi; 

endef

define append_to
    $(ECHO) "$1" >> $2
endef

define SetupZipArchive
    # param 1 is for example ZIP_MYSOURCE
    # param 2,3,4,5,6,7,8,9 are named args.
    #    SRC,ZIP,INCLUDES,EXCLUDES,EXCLUDE_FILES,SUFFIXES,EXTRA_DEPS
    $(if $2,$1_$(strip $2))
    $(if $3,$1_$(strip $3))
    $(if $4,$1_$(strip $4))
    $(if $5,$1_$(strip $5))
    $(if $6,$1_$(strip $6))
    $(if $7,$1_$(strip $7))
    $(if $8,$1_$(strip $8))
    $(if $9,$1_$(strip $9))

    # Find all files in the source tree.
    $1_SUFFIX_FILTER := $$(patsubst %,-o -name $(DQUOTE)*%$(DQUOTE),$$($1_SUFFIXES))
    $1_ALL_SRCS := $$(foreach i,$$($1_SRC), $$(shell $(FIND) $$i -type f -a ! -name "_the.*" \( -name FALSE_DUMMY  $$($1_SUFFIX_FILTER) \) ))

    ifneq ($$($1_INCLUDES),)
        $1_SRC_INCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_INCLUDES))))
        ifneq ($$($1_SUFFIXES),)
            $1_ZIP_INCLUDES := $$(foreach s,$$($1_SUFFIXES),\
		$$(addprefix -i$(SPACE)$(DQUOTE),$$(addsuffix /*$$s$(DQUOTE),$$($1_INCLUDES))))
        else
            $1_ZIP_INCLUDES := $$(addprefix -i$(SPACE)$(DQUOTE),$$(addsuffix /*$(DQUOTE),$$($1_INCLUDES)))
        endif
        $1_ALL_SRCS     := $$(filter $$($1_SRC_INCLUDES),$$($1_ALL_SRCS))
    endif
    ifneq ($$($1_EXCLUDES),)
        $1_SRC_EXCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_EXCLUDES))))
        $1_ZIP_EXCLUDES := $$(addprefix -x$(SPACE)$(DQUOTE),$$(addsuffix /*$(DQUOTE),$$($1_EXCLUDES)))
        $1_ALL_SRCS     := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_SRCS))
    endif

    # Use a slightly shorter name for logging, but with enough path to identify this zip.
    $1_NAME:=$$(subst $$(OUTPUT_ROOT)/,,$$($1_ZIP))

    # Now $1_ALL_SRCS should contain all sources that are going to be put into the zip.
    # I.e. the zip -i and -x options should match the filtering done in the makefile.
    # Explicitly excluded files can be given with absolute path. The patsubst solution
    # isn't perfect but the likelyhood of an absolute path to match something in a src
    # dir is very small.
    $$($1_ZIP) : $$($1_ALL_SRCS) $$($1_EXTRA_DEPS)
		$(MKDIR) -p $$(@D)
		$(ECHO) Updating $$($1_NAME)
		$$(foreach i,$$($1_SRC),(cd $$i && $(ZIP) -qru $$@ . $$($1_ZIP_INCLUDES) $$($1_ZIP_EXCLUDES) -x \*_the.\* $$(addprefix -x$(SPACE),$$(patsubst $$i/%,%,$$($1_EXCLUDE_FILES)))) ;) true
		$(TOUCH) $$@
endef

define add_file_to_copy
    # param 1 = BUILD_MYPACKAGE
    # parma 2 = The source file to copy.
    $2_TARGET:=$2
    # Remove the source prefix. 
    $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$2_TARGET)))
    # Now we can setup the depency that will trigger the copying.
    $$($1_BIN)$$($2_TARGET) : $2
	$(MKDIR) -p $$(@D)
	$(CP) $$< $$@
	$(CHMOD) -f ug+w $$@

    # And do not forget this target
    $1_ALL_COPY_TARGETS += $$($1_BIN)$$($2_TARGET)
endef


# This macro is used only for properties files that are to be
# copied over to the classes directory in cleaned form:
# Previously this was inconsistently done in different repositories.
# This is the new clean standard.
define add_file_to_copy_and_clean
    # param 1 = BUILD_MYPACKAGE
    # parma 2 = The source file to copy and clean.
    $2_TARGET:=$2
    # Remove the source prefix. 
    $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$2_TARGET)))
    # Now we can setup the depency that will trigger the copying.
    $$($1_BIN)$$($2_TARGET) : $2
	$(MKDIR) -p $$(@D)
	$(ECHO) Cleaning $$($2_TARGET)
	$(CAT) $$< | $(SED) -e 's/\([^\\]\):/\1\\:/g' -e  's/\([^\\]\)=/\1\\=/g' -e 's/#.*/#/g' \
                   | $(SED) \
-e 's/\\u0020/\x20/g' \
-e 's/\\u003A/\x3A/g' \
-e 's/\\u006B/\x6B/g' \
-e 's/\\u0075/\x75/g' \
-e 's/\\u00A0/\xA0/g' \
-e 's/\\u00A3/\xA3/g' \
-e 's/\\u00B0/\xB0/g' \
-e 's/\\u00B7/\xB7/g' \
-e 's/\\u00BA/\xBA/g' \
-e 's/\\u00BF/\xBF/g' \
-e 's/\\u00C0/\xC0/g' \
-e 's/\\u00C1/\xC1/g' \
-e 's/\\u00C2/\xC2/g' \
-e 's/\\u00C4/\xC4/g' \
-e 's/\\u00C5/\xC5/g' \
-e 's/\\u00C8/\xC8/g' \
-e 's/\\u00C9/\xC9/g' \
-e 's/\\u00CA/\xCA/g' \
-e 's/\\u00CD/\xCD/g' \
-e 's/\\u00CE/\xCE/g' \
-e 's/\\u00D3/\xD3/g' \
-e 's/\\u00D4/\xD4/g' \
-e 's/\\u00D6/\xD6/g' \
-e 's/\\u00DA/\xDA/g' \
-e 's/\\u00DC/\xDC/g' \
-e 's/\\u00DD/\xDD/g' \
-e 's/\\u00DF/\xDF/g' \
-e 's/\\u00E0/\xE0/g' \
-e 's/\\u00E1/\xE1/g' \
-e 's/\\u00E2/\xE2/g' \
-e 's/\\u00E3/\xE3/g' \
-e 's/\\u00E4/\xE4/g' \
-e 's/\\u00E5/\xE5/g' \
-e 's/\\u00E6/\xE6/g' \
-e 's/\\u00E7/\xE7/g' \
-e 's/\\u00E8/\xE8/g' \
-e 's/\\u00E9/\xE9/g' \
-e 's/\\u00EA/\xEA/g' \
-e 's/\\u00EB/\xEB/g' \
-e 's/\\u00EC/\xEC/g' \
-e 's/\\u00ED/\xED/g' \
-e 's/\\u00EE/\xEE/g' \
-e 's/\\u00EF/\xEF/g' \
-e 's/\\u00F1/\xF1/g' \
-e 's/\\u00F2/\xF2/g' \
-e 's/\\u00F3/\xF3/g' \
-e 's/\\u00F4/\xF4/g' \
-e 's/\\u00F5/\xF5/g' \
-e 's/\\u00F6/\xF6/g' \
-e 's/\\u00F9/\xF9/g' \
-e 's/\\u00FA/\xFA/g' \
-e 's/\\u00FC/\xFC/g' \
-e 's/\\u0020/\x20/g' \
-e 's/\\u003f/\x3f/g' \
-e 's/\\u006f/\x6f/g' \
-e 's/\\u0075/\x75/g' \
-e 's/\\u00a0/\xa0/g' \
-e 's/\\u00a3/\xa3/g' \
-e 's/\\u00b0/\xb0/g' \
-e 's/\\u00ba/\xba/g' \
-e 's/\\u00bf/\xbf/g' \
-e 's/\\u00c1/\xc1/g' \
-e 's/\\u00c4/\xc4/g' \
-e 's/\\u00c5/\xc5/g' \
-e 's/\\u00c8/\xc8/g' \
-e 's/\\u00c9/\xc9/g' \
-e 's/\\u00ca/\xca/g' \
-e 's/\\u00cd/\xcd/g' \
-e 's/\\u00d6/\xd6/g' \
-e 's/\\u00dc/\xdc/g' \
-e 's/\\u00dd/\xdd/g' \
-e 's/\\u00df/\xdf/g' \
-e 's/\\u00e0/\xe0/g' \
-e 's/\\u00e1/\xe1/g' \
-e 's/\\u00e2/\xe2/g' \
-e 's/\\u00e3/\xe3/g' \
-e 's/\\u00e4/\xe4/g' \
-e 's/\\u00e5/\xe5/g' \
-e 's/\\u00e7/\xe7/g' \
-e 's/\\u00e8/\xe8/g' \
-e 's/\\u00e9/\xe9/g' \
-e 's/\\u00ea/\xea/g' \
-e 's/\\u00eb/\xeb/g' \
-e 's/\\u00ec/\xec/g' \
-e 's/\\u00ed/\xed/g' \
-e 's/\\u00ee/\xee/g' \
-e 's/\\u00ef/\xef/g' \
-e 's/\\u00f0/\xf0/g' \
-e 's/\\u00f1/\xf1/g' \
-e 's/\\u00f2/\xf2/g' \
-e 's/\\u00f3/\xf3/g' \
-e 's/\\u00f4/\xf4/g' \
-e 's/\\u00f5/\xf5/g' \
-e 's/\\u00f6/\xf6/g' \
-e 's/\\u00f7/\xf7/g' \
-e 's/\\u00f8/\xf8/g' \
-e 's/\\u00f9/\xf9/g' \
-e 's/\\u00fa/\xfa/g' \
-e 's/\\u00fc/\xfc/g' \
-e 's/\\u00ff/\xff/g' \
		   | $(SED) -e '/^#/d' -e '/^$$$$/d' \
		            -e :a -e '/\\$$$$/N; s/\\\n//; ta' \
			    -e 's/^[ \t]*//;s/[ \t]*$$$$//' \
			    -e 's/\\=/=/' | LANG=C $(SORT) > $$@
	$(CHMOD) -f ug+w $$@

    # And do not forget this target
    $1_ALL_COPY_CLEAN_TARGETS += $$($1_BIN)$$($2_TARGET)
endef

define add_java_package
    # param 1 = BUILD_MYPACKAGE
    # param 2 = the package target file (_the.package)
    # param 3 = src roots, all of them, separated with space
    # param 4 = bin root
    # param 5 = include these dependecies
    # param 6 = not used
    # param 7 = if non-empty, then use -Xdeps and -Xpubapi
    # param 8 = xremote configuration, or empty.
    # param 9 = javac command
    # param 10 = javac flags
    # param 11 = exclude these files!
    # param 12 = only include these files!
    # param 13 = javah command
    # param 14 = override src roots to be passed into -sourcepath, ugly ugly ugly, do not use this!
    #            it is only here to workaround ugly things in the source code in the jdk that ought
    #            to be fixed instead!
    ifdef $2_USED_BY
        $$(error Attempting to add the package $2 from $3 which is already added with sources from $$($2_USED_BY))
    endif
    $2_USED_BY:=$3
    # Remove the _the.package file to get the target bin dir for the classes in this package.
    $2_PACKAGE_BDIR:=$(dir $2)
    # The source roots separated with a path separator (: or ; depending on os)
    # (The patsubst is necessary to trim away unnecessary spaces.)
    ifneq ($(14),)
      $2_SRCROOTSC:=$(subst $(SPACE),$(PATH_SEP),$(strip $(patsubst %,%,$(14))))
    else
      $2_SRCROOTSC:=$(subst $(SPACE),$(PATH_SEP),$(strip $(patsubst %,%,$3)))
    endif
    # Suffix the package path to the src roots, to get a list of all possible source locations
    # for this package.
    $2_PACKAGE_SDIRS:=$$(foreach i,$3,$$(subst $4,$$i,$$($2_PACKAGE_BDIR)))
    # Use wildcard in all potential source locations to find the actual sources.
    $2_PACKAGE_SRCS:=$$(filter-out $(11),$$(wildcard $$(addsuffix *.java,$$($2_PACKAGE_SDIRS))))
    ifneq ($(12),)
      # Filter on include file filter if set.
      $2_PACKAGE_SRCS:=$$(filter $(12),$$($2_PACKAGE_SRCS))
    endif
    # Generate a proper package name from the file name.
    $2_PACKAGE:=$(patsubst .%.,%,$(subst /,.,$(subst $4,,$(dir $2))))
    # Use a javac server for this package?
    $2_REMOTE:=$8

    # Include previously generated information about what classes are output by this package
    # and what sources were used for the compile.
    -include $$($2_PACKAGE_BDIR)_the.package.d

    # Include the notify, file, that exists if the package has been compiled during a previous make round.
    # I.e. we are now dealing with a compile triggered by a pubapi change.
    -include $$($2_PACKAGE_BDIR)_the.package.notify

    # If the notify file existed, then $$($2_NOTIFIED) will be equal to true.
    # Use this information to block dependency tracking for this package. 
    # This is necessary to cut the circular dependency chains that are so common in Java sources.

    ifneq ($$($2_NOTIFIED),true)
        # No need to block, since this package has not yet been recompiled.
        # Thus include previously generated dependency information. (if it exists)
        -include $$($2_PACKAGE_BDIR)_the.package.dddd
#    else
#        $$(info WAS NOTIFIED $2)
    endif

    # Should we create proper dependencies between packages?
    ifneq ($7,)
      # The flag: -XDpubapi:file=foo,package=mypack,notify writes a file foo that contains a 
      # database of the public api of the classes supplied on the command line and are
      # inside the package mypack. If foo already exists, javac will only write to foo,
      # if there is a change in the pubapi. I.e. we can use the timestamp of this file
      # for triggering dependencies. "notify" means create a "file" suffixed with notify
      # if the pubapi really changed. 
      $2_PUBAPI=-XDpubapi=file=$$($2_PACKAGE_BDIR)_the.package.api,notify,package=$$($2_PACKAGE)
      # The flag: -XDnativeapi:file=foo,package=mypack,notify works similar to pubabi, but
      # instead tracks native methods. This file can be used to trigger dependencies for
      # native compilations.
      $2_NATIVEAPI=-XDnativeapi=file=$$($2_PACKAGE_BDIR)_the.package.native,notify,package=$$($2_PACKAGE)
      # The flag -XDdeps:file=foo.deps,groupon=package writes a foo.deps file containing packages dependencies:
      #     java.net : java.io java.lang
      # I.e. the classes in .net depend on the public apis of java.io and java.lang
      # The dependencies can be grouped on classes instead (groupon=class)
      #     java.net.Bar : java.io.Socket java.lang.String
      $2_DEPS:=-XDdeps=file=$$($2_PACKAGE_BDIR)_the.package.deps,groupon=package
      # The next command rewrites the deps output from javac into a proper makefile dependency.
      # The dependencies are always to an .api file generated by the pubapi option above.
      # This is necessary since java package dependencies are almost always circular.
      $2_APPEND_DEPS:=($(CAT) $$($2_PACKAGE_BDIR)_the.package.deps | $(TR) '.' '/' | $(AWK) '{ print "$4/" $$$$3 }' | sort > $$($2_PACKAGE_BDIR)_the.package.ddd && $(GREP) -f $$($2_PACKAGE_BDIR)_the.package.ddd $5 | $(AWK) '{ print "$(dir $2)_the.package : " $$$$1 "_the.package.api" }' > $$($2_PACKAGE_BDIR)_the.package.dddd ; true)
    else
        # If not using dependencies, use $2 as fallback to trigger regeneration of javah header files.
        # This will generate a surplus of header files, but this does not hurt compilation.
        $2_NATIVEAPICHANGE_TRIGGER:=$2
        $2_FETCH_NATIVEAPICHANGE_CLASSES:=$(CAT) $$($2_PACKAGE_BDIR)_the.package.now|$(GREP) -v '\$$$$'|$(SED) -e 's|$4/||g'|$(SED) 's|.class||g'| $(TR) '/' '.'
    endif 

    # The _the.package file is dependent on the java files inside the package.
    # Fill the _the.package file with a list of the java files and compile them
    # to class files.
    $2 : $$($2_PACKAGE_SRCS)
	$(MKDIR) -p $$($2_PACKAGE_BDIR)
	$(RM) $2.tmp
	$$(call ListPathsSafely,$2_PACKAGE_SRCS,\n, >> $2.tmp)
	$(ECHO) $$($2_PACKAGE_BDIR)*.class | $(GREP) -v \*.class | $(TR) ' ' '\n' > $$($2_PACKAGE_BDIR)_the.package.prev
	$(RM) $$($2_PACKAGE_BDIR)*.class $$($2_PACKAGE_BDIR)*.notify $$($2_PACKAGE_BDIR)*.deleted
	$(ECHO) Compiling `$(WC) $2.tmp | $(TR) -s ' ' | $(CUT) -f 2 -d ' '` files in package $(patsubst $4/%/,%,$(dir $2.tmp))
	$9 $$($2_REMOTE) $$($2_DEPS) $$($2_PUBAPI) $$($2_NATIVEAPI) $(10) -implicit:none -sourcepath "$$($2_SRCROOTSC)" -d $4 @$2.tmp
	$(ECHO) $$($2_PACKAGE_BDIR)*.class | $(GREP) -v \*.class | $(TR) ' ' '\n' > $$($2_PACKAGE_BDIR)_the.package.now
	($(GREP) -xvf $$($2_PACKAGE_BDIR)_the.package.now $$($2_PACKAGE_BDIR)_the.package.prev > $$($2_PACKAGE_BDIR)_the.package.deleted;true)
	$(ECHO) $1_CLASSES += `$(CAT) $$($2_PACKAGE_BDIR)_the.package.now` | \
		$(SED) 's/\$$$$/\$$$$\$$$$/g' > $$($2_PACKAGE_BDIR)_the.package.d
	$(ECHO) $1_JAVAS += $$($2_PACKAGE_SRCS) >> $$($2_PACKAGE_BDIR)_the.package.d
	$(ECHO) $2_NOTIFIED:=true > $$($2_PACKAGE_BDIR)_the.package.notify
	$$($2_APPEND_DEPS)
	$$($2_COPY_FILES)
	$(MV) -f $2.tmp $2
endef

define remove_string
    $2 := $$(subst $1,,$$($2))
endef

define replace_space_with_pathsep
    $1:=$(subst $(SPACE),$(PATH_SEP),$(strip $(patsubst %,%,$2)))
endef

define SetupJavaCompilation
    # param 1 is for example BUILD_MYPACKAGE
    # param 2,3,4,5,6,7,8 are named args.
    #    SETUP:=must point to a previously setup java compiler, for example: SETUP:=BOOTJAVAC
    #    JVM:=path to ..bin/java
    #    ADD_JAVAC_FLAGS:=javac flags to append to the default ones.
    #    SRC:=one or more directories to search for sources
    #    BIN:=store classes here
    #    INCLUDES:=myapp.foo means will only compile java files in myapp.foo or any of its sub-packages.
    #    EXCLUDES:=myapp.foo means will do not compile java files in myapp.foo or any of its sub-packages.
    #    COPY:=.prp means copy all prp files to the corresponding package in BIN.
    #    CLEAN:=.properties means copy and clean all properties file to the corresponding package in BIN.
    #    COPY_FILES:=myapp/foo/setting.txt means copy this file over to the package myapp/foo
    #    SRCZIP:=Create a src.zip based on the found sources and copied files.
    #    INCLUDE_FILES:="com/sun/SolarisFoobar.java" means only compile this file!
    #    EXCLUDE_FILES:="com/sun/SolarisFoobar.java" means do not compile this particular file!
    #                   "SolarisFoobar.java" means do not compile SolarisFoobar, wherever it is found.
    #    JAVAC_SOURCE_PATH_UGLY_OVERRIDE:=Don't use this. This forces an explicit -sourcepath to javac.
    #                                     Its only here until we cleanup some nasty source code pasta in the jdk.
    #    HEADERS:=path to directory where all generated c-headers are written.
    #    DEPENDS:=Extra dependecy
    $(if $2,$1_$(strip $2))
    $(if $3,$1_$(strip $3))
    $(if $4,$1_$(strip $4))
    $(if $5,$1_$(strip $5))
    $(if $6,$1_$(strip $6))
    $(if $7,$1_$(strip $7))
    $(if $8,$1_$(strip $8))
    $(if $9,$1_$(strip $9))
    $(if $(10),$1_$(strip $(10)))
    $(if $(11),$1_$(strip $(11)))
    $(if $(12),$1_$(strip $(12)))
    $(if $(13),$1_$(strip $(13)))
    $(if $(14),$1_$(strip $(14)))

# Extract the info from the java compiler setup.
$1_MODE := $$($$($1_SETUP)_MODE)
ifneq (SINGLE_THREADED_BATCH,$$($1_MODE))
    ifneq (MULTI_CORE_CONCURRENT,$$($1_MODE))
        $$(error The Java compilation $1 refers to a non-existant java compiler setup $$($1_SETUP))
    endif
endif
$1_USE_DEPS := $$($$($1_SETUP)_USE_DEPS)
$1_REMOTE := $$($$($1_SETUP)_REMOTE)
$1_JVM   := $$($$($1_SETUP)_JVM)
$1_JAVAC := $$($$($1_SETUP)_JAVAC)
$1_JAVAH := $$($$($1_SETUP)_JAVAH)
$1_FLAGS := $$($$($1_SETUP)_FLAGS) $(JAVAC_FLAGS) $$($1_ADD_JAVAC_FLAGS)

# Handle addons and overrides.
$1_SRC:=$$(call ADD_SRCS,$$($1_SRC))
# Make sure the dirs exist.
$$(shell $(MKDIR) -p $$($1_SRC) $$($1_BIN))
# Find all files in the source trees.
$1_ALL_SRCS := $$(filter-out $(OVR_SRCS),$$(foreach i,$$($1_SRC),$$(shell $(FIND) $$i -type f)))
# Extract the java files.
ifneq ($$($1_EXCLUDE_FILES),)
  $1_EXCLUDE_FILES_PATTERN:=$$(addprefix %,$$($1_EXCLUDE_FILES))
endif
$1_SRCS     := $$(filter-out $$($1_EXCLUDE_FILES_PATTERN),$$(filter %.java,$$($1_ALL_SRCS)))
ifneq ($$($1_INCLUDE_FILES),)
  $1_INCLUDE_FILES:=$$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$($1_INCLUDE_FILES)))
  $1_SRCS := $$(filter $$($1_INCLUDE_FILES), $$($1_SRCS))
endif
$1_PKGS     := $$(sort $$(dir $$($1_SRCS)))
# Remove the source root from each found path.
$$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$1_PKGS)))
$1_PKGS     := $$(sort $$($1_PKGS))
# There can be only a single bin dir root, no need to foreach over the roots.
$1_BINS     := $$(shell $(FIND) $$($1_BIN) -name "*.class")

# Now we have a list of all java files to compile: $$($1_SRCS)
# and we have a list of all existing class files: $$($1_BINS)

# Prepend the source/bin path to the filter expressions.
ifneq ($$($1_INCLUDES),)
  $1_SRC_INCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_INCLUDES))))
  $1_PKG_INCLUDES := $$(addprefix /,$$(addsuffix /%,$$($1_INCLUDES)))
  $1_BIN_INCLUDES := $$(addprefix $$($1_BIN)/,$$(addsuffix /%,$$($1_INCLUDES)))
  $1_SRCS     := $$(filter $$($1_SRC_INCLUDES),$$($1_SRCS))
  $1_PKGS     := $$(filter $$($1_PKG_INCLUDES),$$($1_PKGS))
  $1_BINS     := $$(filter $$($1_BIN_INCLUDES),$$($1_BINS))
endif
ifneq ($$($1_EXCLUDES),)
  $1_SRC_EXCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_EXCLUDES))))
  $1_PKG_EXCLUDES := $$(addprefix /,$$(addsuffix /%,$$($1_EXCLUDES)))
  $1_BIN_EXCLUDES := $$(addprefix $$($1_BIN)/,$$(addsuffix /%,$$($1_EXCLUDES)))
  $1_SRCS     := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_SRCS))
  $1_PKGS     := $$(filter-out $$($1_PKG_EXCLUDES),$$($1_PKGS))
  $1_BINS     := $$(filter-out $$($1_BIN_EXCLUDES),$$($1_BINS))
endif

# Find all files to be copied from source to bin.
ifneq (,$$($1_COPY))
    # Rewrite list of patterns into a find statement.
    $1_COPY_PATTERN:=$(FALSE_FIND_PATTERN) $$(patsubst %,$(SPACE)-o$(SPACE)-name$(SPACE)$(DQUOTE)*%$(DQUOTE),$$($1_COPY))
    # Search for all files to be copied.
    $1_ALL_COPIES := $$(foreach i,$$($1_SRC), $$(shell $(FIND) $$i \( $$($1_COPY_PATTERN) \) -a -type f))
    # Copy these explicitly
    $1_ALL_COPIES += $$($1_COPY_FILES)
    # Copy must also respect filters.
    ifneq (,$$($1_INCLUDES))
        $1_ALL_COPIES := $$(filter $$($1_SRC_INCLUDES),$$($1_ALL_COPIES))
    endif
    ifneq (,$$($1_EXCLUDES))
        $1_ALL_COPIES := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_ALL_COPIES))
    endif
    ifneq (,$$($1_EXCLUDE_FILES))
        $1_ALL_COPIES := $$(filter-out $$($1_EXCLUDE_FILES_PATTERN),$$($1_ALL_COPIES))
    endif
    # All files below META-INF are always copied.
    $1_ALL_COPIES += $$(foreach i,$$($1_SRC), $$(shell $(FIND) $$i/META-INF -type f 2> /dev/null))
    ifneq (,$$($1_ALL_COPIES))
        # Yep, there are files to be copied!
        $1_ALL_COPY_TARGETS:=
        $$(foreach i,$$($1_ALL_COPIES),$$(eval $$(call add_file_to_copy,$1,$$i)))
        # Now we can depend on $$($1_ALL_COPY_TARGETS) to copy all files!
    endif
endif

# Find all property files to be copied and cleaned from source to bin.
ifneq (,$$($1_CLEAN))
    # Rewrite list of patterns into a find statement.
    $1_CLEAN_PATTERN:=$(FALSE_FIND_PATTERN) $$(patsubst %,$(SPACE)-o$(SPACE)-name$(SPACE)$(DQUOTE)*%$(DQUOTE),$$($1_CLEAN))
    # Search for all files to be copied.
    $1_ALL_CLEANS := $$(foreach i,$$($1_SRC), $$(shell $(FIND) $$i \( $$($1_CLEAN_PATTERN) \) -a -type f))
    # Copy and clean must also respect filters.
    ifneq (,$$($1_INCLUDES))
        $1_ALL_CLEANS := $$(filter $$($1_SRC_INCLUDES),$$($1_ALL_CLEANS))
    endif
    ifneq (,$$($1_EXCLUDES))
        $1_ALL_CLEANS := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_ALL_CLEANS))
    endif
    ifneq (,$$($1_EXCLUDE_FILES))
        $1_ALL_CLEANS := $$(filter-out $$($1_EXCLUDE_FILES_PATTERN),$$($1_ALL_CLEANS))
    endif
    ifneq (,$$($1_ALL_CLEANS))
        # Yep, there are files to be copied and cleaned!
        $1_ALL_COPY_CLEAN_TARGETS:=
        $$(foreach i,$$($1_ALL_CLEANS),$$(eval $$(call add_file_to_copy_and_clean,$1,$$i)))
        # Now we can depend on $$($1_ALL_COPY_CLEAN_TARGETS) to copy all files!
    endif
endif

# Find all the directories that contain java sources, each directory
# corresponds to a package because we expect the source
# code to be organized in this standardized way!
$1_SDIRS := $$(sort $$(dir $$($1_SRCS)))
# Now prefix each package with the bin root.
$1_BDIRS := $$(foreach i,$$($1_PKGS),$$(addprefix $$($1_BIN),$$i))
# Now create a list of the packages that are about to compile. This list is
# later used to filter out dependencies that point outside of this set.
$$(shell $(RM) $$($1_BIN)/_the.list_of_packages)
$$(eval $$(call ListPathsSafelyNow,$1_BDIRS,\n, >> $$($1_BIN)/_the.list_of_packages))

ifeq ($$($1_MODE),SINGLE_THREADED_BATCH)
    # Ok, we will feed all the found java files into a single javac invocation.
    # There can be no dependency checking, nor incremental builds. It is
    # the best we can do with the old javac. If the javac supports a javac server
    # then we can use the javac server.

    # We can depend on this target file to trigger a regeneration of all the sources
    $1 := $$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS) $$($1_BIN)/_the.batch

    # Prep the source paths.
    ifneq ($$($1_JAVAC_SOURCE_PATH_UGLY_OVERRIDE),)
      $$(eval $$(call replace_space_with_pathsep,$1_SRCROOTSC,$$($1_JAVAC_SOURCE_PATH_UGLY_OVERRIDE)))
    else
      $$(eval $$(call replace_space_with_pathsep,$1_SRCROOTSC,$$($1_SRC)))
    endif

    ifneq (,$$($1_HEADERS))
      $1_HEADERS_ARG := -h $$($1_HEADERS)
    endif

    # Create a sed expression to remove the source roots and to replace / with .
    # and remove .java at the end. 
    $1_REWRITE_INTO_CLASSES:=$$(foreach i,$$($1_SRC),-e 's|$$i/||g') -e 's|/|.|g' -e 's|.java$$$$||g'

    # Here is the batch rules that depends on all the sources.
    $$($1_BIN)/_the.batch: $$($1_SRCS) $$($1_DEPENDS)
	$(MKDIR) -p $$(@D)
	$(RM) $$($1_BIN)/_the.batch $$($1_BIN)/_the.batch.tmp
	$$(call ListPathsSafely,$1_SRCS,\n, >> $$($1_BIN)/_the.batch.tmp)
	$(ECHO) Compiling `$(WC) $$($1_BIN)/_the.batch.tmp | $(TR) -s ' ' | $(CUT) -f 2 -d ' '` files in batch $1
	($$($1_JVM) $$($1_JAVAC) $$($1_FLAGS) -implicit:none -sourcepath "$$($1_SRCROOTSC)" -d $$($1_BIN) $$($1_HEADERS_ARG) @$$($1_BIN)/_the.batch.tmp && \
         $(MV) $$($1_BIN)/_the.batch.tmp $$($1_BIN)/_the.batch)
else
    # Ok, we have a modern javac server running!
    # Since a single Java file can generate zero to an infinity number of .class files
    # the exact number and names of the .class files will only be known after the compile.
    # Thus after the compile, a list of the generated classes will be stored in _the.package.d
    # which is included by the makefile during the next compile. These .d files will
    # add the generated class names to the BUILD_MYPACKAGE_CLASSES variable and used java file names
    # to the BUILD_MYPACKAGE_JAVAS variable.
    $1_CLASSES := 
    $1_JAVAS   := 
    # Create a file in each package that represents the package dependency.
    # This file (_the.package) will also contain a list of the source files
    # to be compiled for this package.
    $1 := $$(sort $$(patsubst %,%_the.package,$$($1_BDIRS)))
    # Now call add_java_package for each package to create the dependencies.
    $$(foreach p,$$($1),$$(eval $$(call add_java_package,$1,$$p,$$($1_SRC),$$($1_BIN),$$($1_BIN)/_the.list_of_packages,NOTUSED,$$($1_USE_DEPS),$$($1_REMOTE),$$($1_JVM) $$($1_JAVAC),$$($1_FLAGS),$$($1_EXCLUDE_FILES_PATTERN) $(OVR_SRCS),$$($1_INCLUDE_FILES),$$($1_JVM) $$($1_JAVAH),$$($1_JAVAC_SOURCE_PATH_UGLY_OVERRIDE))))
    # All dependencies are setup, now we only need to depend on $1 (aka $(BUILD_MYPACKAGE))
    # and they will automatically be built!

    # Now add on any files to copy targets
    $1 := $$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS) $$($1)
    # Remove the set of found classes from the set of all previously known classes
    # and the remainder is the set of missing classes.
    $1_MISSING_CLASSES:=$$(filter-out $$($1_BINS),$$($1_CLASSES))
    $1_PKGS_MISSING_CLASSES:=$$(sort $$(dir $$($1_MISSING_CLASSES)))
    # Remove the set of found java files from the set of all previously known java files
    # the remainder is Java files that have gone missing.
    $1_MISSING_JAVAS:=$$(filter-out $$($1_SRCS),$$($1_JAVAS))
    $1_PKGS_MISSING_JAVAS:=$$(sort $$(dir $$($1_MISSING_JAVAS)))
    # Remove each source root from the found paths.
    $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$1_PKGS_MISSING_JAVAS)))
    # Finally remove duplicates and prefix with the binary path instead.
    $1_PKGS_MISSING_JAVAS:= $$(addprefix $$($1_BIN),$$(sort $$($1_PKGS_MISSING_JAVAS)))

    # Remove the set of all theoretical classes from the set of found classes.
    # the remainder is the set of superfluous classes.
    $1_SUPERFLUOUS_CLASSES:=$$(sort $$(filter-out $$($1_CLASSES),$$($1_BINS)))
    $1_PKGS_SUPERFLUOUS_CLASSES:=$$(sort $$(dir $$($1_SUPERFLUOUS_CLASSES)))

    # Now delete the _the.package files inside the problematic dirs.
    # This will force a rebuild of these packages!
    $1_FOO:=$$(sort $$($1_PKGS_MISSING_CLASSES) \
                                                 $$($1_PKGS_SUPERFLUOUS_CLASSES) \
                                                 $$($1_PKGS_MISSING_JAVAS))
#    ifneq (,$$($1_FOO))
#            $$(info MESSED UP PACKAGES $$($1_FOO))
#    endif

    $$(shell $(RM) $$(addsuffix _the.package,$$(sort $$($1_PKGS_MISSING_CLASSES) \
                                                 $$($1_PKGS_SUPERFLUOUS_CLASSES) \
                                                 $$($1_PKGS_MISSING_JAVAS))))

    # Normal makefile dependencies based on timestamps will detect the normal use case
    # when Java files are simply added or modified.
endif

ifneq (,$$($1_JAR))

    ifeq (,$$($1_SUFFIXES))
        $1_SUFFIXES:=.class $$($1_CLEAN) $$($1_COPY)
    endif

    # A jar file was specified. Set it up.
    $$(eval $$(call SetupArchive,ARCHIVE_$1,$$($1),\
	SRCS:=$$($1_BIN),\
	SUFFIXES:=$$($1_SUFFIXES),\
	EXCLUDE:=$$($1_EXCLUDES),\
	INCLUDES:=$$($1_INCLUDES),\
	EXTRA_FILES:=$$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS),\
	JAR:=$$($1_JAR),\
	JARMAIN:=$$($1_JARMAIN),\
	MANIFEST:=$$($1_MANIFEST),\
	EXTRA_MANIFEST_ATTR:=$$($1_EXTRA_MANIFEST_ATTR),\
	JARINDEX:=$$($1_JARINDEX),\
	HEADERS:=$$($1_HEADERS),\
	SETUP:=$$($1_SETUP)))
endif

ifneq (,$$($1_SRCZIP))
    # A srczip file was specified. Set it up.
    $$(eval $$(call SetupZipArchive,ARCHIVE_$1,\
		SRC:=$$($1_SRC),\
		ZIP:=$$($1_SRCZIP),\
		INCLUDES:=$$($1_INCLUDES),\
		EXCLUDES:=$$($1_EXCLUDES),\
		EXCLUDE_FILES:=$$($1_EXCLUDE_FILES)))
endif

endef