Fix[JNA]: use agent to replace class at runtime

Fixes duplicate module package on recent Forge versions.

JavaApp/Makefile

@@ -1,13 +1,17 @@
 # Prerequisite variables
 SOURCEDIR := src
 OUTPUTDIR := build
+
 SOURCES := $(shell find $(SOURCEDIR) -type f -name '*.java')
 CLASSES := $(SOURCES:$(SOURCEDIR)/%.java=$(OUTPUTDIR)/%.class)
 
+TARGETS := $(shell find $(SOURCEDIR) -mindepth 1 -maxdepth 1 -type d)
+TARGETS := $(TARGETS:$(SOURCEDIR)/%=$(OUTPUTDIR)/%.jar)
+
 # Add all jars to classpath and allow compiling with private API
 JCFLAGS := -cp "$(subst $() $(),:,$(wildcard $(SOURCEDIR)/*/):$(wildcard libs/*/*.jar))" -XDignore.symbol.file
 
-all: $(OUTPUTDIR)/launcher.jar $(OUTPUTDIR)/lwjgl.jar
+all: $(TARGETS)
 
 # Rules for building java class
 $(CLASSES): $(OUTPUTDIR)/%.class: $(SOURCEDIR)/%.java
@@ -22,7 +26,7 @@ $(CLASSES): $(OUTPUTDIR)/%.class: $(SOURCEDIR)/%.java
 $(OUTPUTDIR)/launcher.jar: $(CLASSES)
 	@set -e
 	@echo "Creating $@"
-	$(BOOTJDK)/jar -cf $@ -C $(basename $@) .
+	@$(BOOTJDK)/jar -cf $@ -C $(basename $@) .
 
 $(OUTPUTDIR)/lwjgl.jar: $(CLASSES)
 	@set -e
@@ -32,6 +36,12 @@ $(OUTPUTDIR)/lwjgl.jar: $(CLASSES)
 	@cp -R $(OUTPUTDIR)/lwjgl/* $(OUTPUTDIR)/lwjgl_lib/
 	@$(BOOTJDK)/jar -cf $@ -C $(OUTPUTDIR)/lwjgl_lib .
 
+$(OUTPUTDIR)/patchjna_agent.jar: $(CLASSES)
+	@set -e
+	@mv $(basename $@)/com/sun/jna/Platform.class $(basename $@)/com/sun/jna/Platform.class.patch
+	@echo "Creating $@"
+	@$(BOOTJDK)/jar -cfm $@ $(SOURCEDIR)/patchjna_agent.txt -C $(basename $@) .
+
 clean:
 	rm -rf $(OUTPUTDIR)