diff --git a/core/definitions.mk b/core/definitions.mk
index f688f41..a47202c 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1598,9 +1598,6 @@
 ## Commands for running javac to make .class files
 ###########################################################
 
-#@echo "Source intermediates dir: $(PRIVATE_SOURCE_INTERMEDIATES_DIR)"
-#@echo "Source intermediates: $$(find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java')"
-
 # TODO: Right now we generate the asset resources twice, first as part
 # of generating the Java classes, then at the end when packaging the final
 # assets.  This should be changed to do one of two things: (1) Don't generate
@@ -1715,7 +1712,7 @@
 $(call unzip-jar-files,$(PRIVATE_STATIC_JAVA_LIBRARIES),$(PRIVATE_CLASS_INTERMEDIATES_DIR))
 $(call dump-words-to-file,$(PRIVATE_JAVA_SOURCES),$(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list)
 $(hide) if [ -d "$(PRIVATE_SOURCE_INTERMEDIATES_DIR)" ]; then \
-          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' >> $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list; \
+          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' -and -not -name '.*' >> $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list; \
 fi
 $(hide) tr ' ' '\n' < $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list \
     | sort -u > $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list-uniq
@@ -1779,7 +1776,7 @@
 $(if $(PRIVATE_JACK_INCREMENTAL_DIR),$(hide) mkdir -p $(PRIVATE_JACK_INCREMENTAL_DIR))
 $(call dump-words-to-file,$(PRIVATE_JAVA_SOURCES),$(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list)
 $(hide) if [ -d "$(PRIVATE_SOURCE_INTERMEDIATES_DIR)" ]; then \
-          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' >> $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list; \
+          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' -and -not -name '.*' >> $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list; \
 fi
 $(hide) tr ' ' '\n' < $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list \
     | sort -u > $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list-uniq
@@ -1859,7 +1856,7 @@
 $(if $(PRIVATE_JACK_INCREMENTAL_DIR),$(hide) mkdir -p $(PRIVATE_JACK_INCREMENTAL_DIR))
 $(call dump-words-to-file,$(PRIVATE_JAVA_SOURCES),$(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list)
 $(hide) if [ -d "$(PRIVATE_SOURCE_INTERMEDIATES_DIR)" ]; then \
-          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' >> $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list; \
+          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' -and -not -name '.*' >> $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list; \
 fi
 $(hide) tr ' ' '\n' < $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list \
     | sort -u > $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list-uniq
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index 0de1837..417d4fd 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -107,7 +107,7 @@
 define prepare-doc-source-list
 $(hide) mkdir -p $(dir $(1))
 $(call dump-words-to-file, $(2), $(1))
-$(hide) for d in $(3) ; do find $$d -name '*.java' >> $(1) 2> /dev/null ; done ; true
+$(hide) for d in $(3) ; do find $$d -name '*.java' -and -not -name '.*' >> $(1) 2> /dev/null ; done ; true
 endef
 
 ifeq (a,b)