commit ce99f050259bea74313cd0e1163c525f8a927089
author Colin Cross <ccross@android.com> Thu Mar 15 13:05:46 2018 -0700
committer Colin Cross <ccross@android.com> Tue Mar 20 15:47:45 2018 -0700
tree 4b6c81b90b7db46e844b56cd481faef06d4a95ae
parent 0a717ccd3fea7c705948da482e6628952a948174

Allow compiles with only srcjars

Some javac and turbine compiles have no source files but sources
from srcjars.  Continue with compilation if the java source list
is empty but the srcjar source list is not.

Bug: 73885582
Test: m checkbuild
Change-Id: Ica412de2dd1b1bfc12c01c3eafca884220d42771
Merged-In: Ica412de2dd1b1bfc12c01c3eafca884220d42771
(cherry picked from commit 0c0adb993cf271c02462a3e15dc5f50525d21b2c)

core/definitions.mk

diff --git a/core/definitions.mk b/core/definitions.mk
index 20c32b8..96f6c59 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2242,7 +2242,7 @@
 $(hide) mkdir -p $(PRIVATE_CLASS_INTERMEDIATES_DIR) $(PRIVATE_ANNO_INTERMEDIATES_DIR) $(if $(PRIVATE_SRCJARS),$(PRIVATE_SRCJAR_INTERMEDIATES_DIR))
 $(if $(PRIVATE_SRCJARS),\
     $(EXTRACT_SRCJARS) $(PRIVATE_SRCJAR_INTERMEDIATES_DIR) $(PRIVATE_SRCJAR_LIST_FILE) $(PRIVATE_SRCJARS))
-$(hide) if [ -s $(PRIVATE_JAVA_SOURCE_LIST) ] ; then \
+$(hide) if [ -s $(PRIVATE_JAVA_SOURCE_LIST) $(if $(PRIVATE_SRCJARS),-o -s $(PRIVATE_SRCJAR_LIST_FILE) )] ; then \
     $(SOONG_JAVAC_WRAPPER) $(JAVAC_WRAPPER) $(1) -encoding UTF-8 \
     $(if $(findstring true,$(PRIVATE_WARNINGS_ENABLE)),$(xlint_unchecked),) \
     $(if $(PRIVATE_USE_SYSTEM_MODULES), \
@@ -2287,7 +2287,7 @@
 @mkdir -p $(dir $@)
 @rm -rf $(dir $@)/classes-turbine
 @mkdir $(dir $@)/classes-turbine
-$(hide) if [ -s $(PRIVATE_JAVA_SOURCE_LIST) ] ; then \
+$(hide) if [ -s $(PRIVATE_JAVA_SOURCE_LIST) -o -n "$(PRIVATE_SRCJARS)" ] ; then \
     $(JAVA) -jar $(TURBINE) \
     --output $@.premerged --temp_dir $(dir $@)/classes-turbine \
     --sources \@$(PRIVATE_JAVA_SOURCE_LIST) --source_jars $(PRIVATE_SRCJARS) \