Make jack_check_timestamp depend on setup-jack-server

Some builds were failing with:
[  3% 2226/61362] /bin/bash out/target/common/obj/JAVA_LIBRARIES/core-all_intermediates/jack.check.timestamp.rsp
FAILED: /bin/bash out/target/common/obj/JAVA_LIBRARIES/core-all_intermediates/jack.check.timestamp.rsp
No Jack server running. Try 'jack-admin start-server'

While jack-admin was running concurrently:
[  3% 2226/61362] /bin/bash -c "(prebuilts/sdk/tools/jack-admin stop-server 2>&1 || (exit 0) ) && (prebuilts/sdk/tools/jack-admin kill-server 2>&1 || (exit 0) ) && (prebuilts/sdk/tools/jack-admin uninstall-server 2>&1 || (exit 0) ) && (prebuilts/sdk/tools/jack-admin install-server prebuilts/sdk/tools/jack-launcher.jar prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar  2>&1 || (exit 0) ) && (mkdir -p \"/buildbot/dist_dirs/git_nyc-dev-mac-sdk_phone_armv7-sdk/2779793/logs/jack/\" ) && (JACK_SERVER_VM_ARGUMENTS=\"-Dfile.encoding=UTF-8 -XX:+TieredCompilation -Dcom.android.jack.server.log.file=/buildbot/dist_dirs/git_nyc-dev-mac-sdk_phone_armv7-sdk/2779793/logs/jack/jack-server-%u-%g.log\" prebuilts/sdk/tools/jack-admin start-server 2>&1 || exit 0 ) && (prebuilts/sdk/tools/jack-admin update server prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar 4.8.ALPHA 2>&1 || exit 0 ) && (prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-2.28.RELEASE.jar 2.28.RELEASE || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-3.26.ALPHA.jar 3.26.ALPHA || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-3.27.BETA.jar 3.27.BETA || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-3.30.BETA.jar 3.30.BETA || exit 47 )"
Stopping background server
Killing background server
No Jack server to kill
Removing jack server from "/Users/android-build/.jack-server"
Installing jack server in "/Users/android-build/.jack-server"
Launching Jack server java -XX:MaxJavaStackTraceDepth=-1 -Djava.io.tmpdir=/buildbot/tmp -Dfile.encoding=UTF-8 -XX:+TieredCompilation -Dcom.android.jack.server.log.file=/buildbot/dist_dirs/git_nyc-dev-mac-sdk_phone_armv7-sdk/2779793/logs/jack/jack-server-%u-%g.log -cp /Users/android-build/.jack-server/launcher.jar com.android.jack.launcher.ServerLauncher

(cherry picked from commit febe2bcc217b3dc546ea7bbf0361261a7b482b17)

Change-Id: I406afc87b4f7dda49406c4e1674430d223914e8d
diff --git a/core/java.mk b/core/java.mk
index 6ee983e..cf0fdb7 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -623,7 +623,7 @@
         $(proto_java_sources_file_stamp) $(LOCAL_ADDITIONAL_DEPENDENCIES) $(LOCAL_JARJAR_RULES) \
         $(JACK_DEFAULT_ARGS) $(JACK)
 
-$(jack_check_timestamp): $(jack_all_deps)
+$(jack_check_timestamp): $(jack_all_deps) | setup-jack-server
 	@echo Checking build with Jack: $@
 	$(jack-check-java)