diff --git a/common/strings.mk b/common/strings.mk
index ba20e27..e560bf0 100644
--- a/common/strings.mk
+++ b/common/strings.mk
@@ -28,7 +28,7 @@
 ###########################################################
 to-upper=$(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,$(subst z,Z,$1))))))))))))))))))))))))))
 
-# Sanity-check to-lower and to-upper
+# Test to-lower and to-upper
 lower := abcdefghijklmnopqrstuvwxyz-_
 upper := ABCDEFGHIJKLMNOPQRSTUVWXYZ-_
 
diff --git a/core/binary.mk b/core/binary.mk
index 29a78a3..be7dc27 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -594,7 +594,7 @@
 
 $(call track-src-file-gen,$(renderscript_sources),$(rs_generated_cpps))
 
-# This is just a dummy rule to make sure gmake doesn't skip updating the dependents.
+# This is just a no-op rule to make sure gmake doesn't skip updating the dependents.
 $(rs_generated_cpps) : $(RenderScript_file_stamp)
 	@echo "Updated RS generated cpp file $@."
 	$(hide) touch $@
diff --git a/core/board_config.mk b/core/board_config.mk
index 4141cee..d4fe618 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -16,7 +16,7 @@
 
 # ###############################################################
 # This file includes BoardConfig.mk for the device being built,
-# and sanity-checks the variable defined therein.
+# and checks the variable defined therein.
 # ###############################################################
 
 _board_strip_readonly_list := \
@@ -167,7 +167,7 @@
 TARGET_CPU_VARIANT_RUNTIME := $(or $(TARGET_CPU_VARIANT_RUNTIME),$(TARGET_CPU_VARIANT))
 TARGET_2ND_CPU_VARIANT_RUNTIME := $(or $(TARGET_2ND_CPU_VARIANT_RUNTIME),$(TARGET_2ND_CPU_VARIANT))
 
-# The combo makefiles sanity-check and set defaults for various CPU configuration
+# The combo makefiles check and set defaults for various CPU configuration
 combo_target := TARGET_
 combo_2nd_arch_prefix :=
 include $(BUILD_SYSTEM)/combo/select.mk
@@ -191,7 +191,7 @@
   TARGET_SUPPORTS_32_BIT_APPS := true
 endif
 
-# Sanity check to warn about likely cryptic errors later in the build.
+# Quick check to warn about likely cryptic errors later in the build.
 ifeq ($(TARGET_IS_64_BIT),true)
   ifeq (,$(filter true false,$(TARGET_SUPPORTS_64_BIT_APPS)))
     $(error Building a 32-bit-app-only product on a 64-bit device. \
@@ -649,7 +649,7 @@
   endif
 endif
 
-# Sanity check for building generic OTA packages. Currently it only supports A/B OTAs.
+# Quick check for building generic OTA packages. Currently it only supports A/B OTAs.
 ifeq ($(PRODUCT_BUILD_GENERIC_OTA_PACKAGE),true)
   ifneq ($(AB_OTA_UPDATER),true)
     $(error PRODUCT_BUILD_GENERIC_OTA_PACKAGE with 'AB_OTA_UPDATER != true' is not supported)
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 9d9d0e0..7f420a7 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -259,6 +259,7 @@
 LOCAL_SANITIZE_RECOVER:=
 LOCAL_SANITIZE_NO_RECOVER:=
 LOCAL_SANITIZE_BLACKLIST :=
+LOCAL_SANITIZE_BLOCKLIST :=
 LOCAL_SDK_LIBRARIES :=
 LOCAL_SDK_RES_VERSION:=
 LOCAL_SDK_VERSION:=
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index cbca1fb..e45c1a6 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -39,7 +39,7 @@
   TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT := generic
 endif
 
-# This sanity checks TARGET_2ND_ARCH_VARIANT against the lists above.
+# This quickly checks TARGET_2ND_ARCH_VARIANT against the lists above.
 ifneq (,$(filter $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT), $(KNOWN_ARMv82a_CORES)))
   ifeq (,$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT))
     TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := armv8-2a
diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
index c5cb91c..323bb36 100644
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@@ -147,6 +147,9 @@
   ifneq ($(LOCAL_SANITIZE_BLACKLIST),)
     my_cflags += -fsanitize-blacklist=$(LOCAL_PATH)/$(LOCAL_SANITIZE_BLACKLIST)
   endif
+  ifneq ($(LOCAL_SANITIZE_BLOCKLIST),)
+    my_cflags += -fsanitize-blacklist=$(LOCAL_PATH)/$(LOCAL_SANITIZE_BLOCKLIST)
+  endif
 endif
 
 # Disable integer_overflow if LOCAL_NOSANITIZE=integer.
diff --git a/core/java_common.mk b/core/java_common.mk
index 373c5d0..b7f2883 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -231,7 +231,7 @@
 
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RMTYPEDEFS := $(LOCAL_RMTYPEDEFS)
 
-# Sanity check class path vars.
+# Quickly check class path vars.
 disallowed_deps := $(foreach sdk,$(TARGET_AVAILABLE_SDK_VERSIONS),$(call resolve-prebuilt-sdk-module,$(sdk)))
 disallowed_deps += $(foreach sdk,$(TARGET_AVAILABLE_SDK_VERSIONS),\
   $(foreach sdk_lib,$(JAVA_SDK_LIBRARIES),$(call resolve-prebuilt-sdk-module,$(sdk),$(sdk_lib))))
diff --git a/core/line_coverage.mk b/core/line_coverage.mk
index babcb30..6bfbb8d 100644
--- a/core/line_coverage.mk
+++ b/core/line_coverage.mk
@@ -12,11 +12,11 @@
 # -----------------------------------------------------------------
 
 # TODO(b/148306195): Due this issue some fuzz targets cannot be built with
-# line coverage instrumentation. For now we just blacklist them.
-blacklisted_fuzz_targets := libneuralnetworks_fuzzer
+# line coverage instrumentation. For now we just block them.
+blocked_fuzz_targets := libneuralnetworks_fuzzer
 
 fuzz_targets := $(ALL_FUZZ_TARGETS)
-fuzz_targets := $(filter-out $(blacklisted_fuzz_targets),$(fuzz_targets))
+fuzz_targets := $(filter-out $(blocked_fuzz_targets),$(fuzz_targets))
 
 
 # Android components that considered critical.
diff --git a/core/main.mk b/core/main.mk
index 90c4cc4..b8b4404 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -1226,7 +1226,7 @@
       # Strip :32 and :64 suffixes
       _modules := $(patsubst %:32,%,$(_modules))
       _modules := $(patsubst %:64,%,$(_modules))
-      # Sanity check all modules in PRODUCT_PACKAGES exist. We check for the
+      # Quickly check all modules in PRODUCT_PACKAGES exist. We check for the
       # existence if either <module> or the <module>_32 variant.
       _nonexistent_modules := $(foreach m,$(_modules), \
         $(if $(or $(ALL_MODULES.$(m).PATH),$(call get-modules-for-2nd-arch,TARGET,$(m))),,$(m)))
diff --git a/core/product_config.mk b/core/product_config.mk
index bb806bb..38926c2 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -166,7 +166,7 @@
   $(if $(filter-out $(makefile),$(PRODUCTS)),$(eval $(call import-products,$(makefile))))\
 )
 
-# Sanity check
+# Quick check
 $(check-all-products)
 
 ifneq ($(filter dump-products, $(MAKECMDGOALS)),)
@@ -201,7 +201,7 @@
 $(call strip-product-vars)
 
 #############################################################################
-# Sanity check and assign default values
+# Quick check and assign default values
 
 TARGET_DEVICE := $(PRODUCT_DEVICE)
 
diff --git a/core/robolectric_test_config_template.xml b/core/robolectric_test_config_template.xml
index 78863b7..e79abd5 100644
--- a/core/robolectric_test_config_template.xml
+++ b/core/robolectric_test_config_template.xml
@@ -18,9 +18,13 @@
     <option name="test-suite-tag" value="apct" />
     <option name="test-suite-tag" value="apct-junit" />
 
+    <option name="java-folder" value="prebuilts/jdk/jdk9/linux-x86/" />
+    <option name="exclude-paths" value="java" />
+    <option name="use-robolectric-resources" value="true" />
+
     {EXTRA_CONFIGS}
 
-    <test class="com.android.tradefed.testtype.HostTest" >
+    <test class="com.android.tradefed.testtype.IsolatedHostTest" >
         <option name="jar" value="{MODULE}.jar" />
     </test>
 </configuration>
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 81dbc23..98ab07d 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -216,6 +216,8 @@
 
 $(call add_json_bool, BoardUsesRecoveryAsBoot, $(BOARD_USES_RECOVERY_AS_BOOT))
 
+$(call add_json_list, BoardKernelBinaries, $(BOARD_KERNEL_BINARIES))
+
 $(call json_end)
 
 $(file >$(SOONG_VARIABLES).tmp,$(json_contents))
diff --git a/tools/Android.bp b/tools/Android.bp
index 149d06d..e0f3739 100644
--- a/tools/Android.bp
+++ b/tools/Android.bp
@@ -56,3 +56,23 @@
   test_config: "post_process_props_unittest.xml",
   test_suites: ["general-tests"],
 }
+
+python_binary_host {
+  name: "extract_kernel",
+  srcs: ["extract_kernel.py"],
+  version: {
+    py2: {
+      enabled: true,
+    },
+    py3: {
+      enabled: false,
+    },
+  },
+}
+
+genrule_defaults {
+  name: "extract_kernel_release_defaults",
+  tools: ["extract_kernel", "lz4"],
+  out: ["kernel_release.txt"],
+  cmd: "$(location) --tools lz4:$(location lz4) --input $(in) --output-release > $(out)"
+}
diff --git a/tools/check_elf_file.py b/tools/check_elf_file.py
index de855c6..372404b 100755
--- a/tools/check_elf_file.py
+++ b/tools/check_elf_file.py
@@ -174,7 +174,7 @@
   @classmethod
   def open(cls, elf_file_path, llvm_readobj):
     """Open and parse the ELF file."""
-    # Parse the ELF header for simple sanity checks.
+    # Parse the ELF header to check the magic word.
     header = cls._read_elf_header(elf_file_path)
     if not header or header.ei_magic != _ELF_MAGIC:
       raise ELFInvalidMagicError()
diff --git a/tools/extract_kernel.py b/tools/extract_kernel.py
index 8ca11d1..92a647b 100755
--- a/tools/extract_kernel.py
+++ b/tools/extract_kernel.py
@@ -40,10 +40,10 @@
 # LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
 LINUX_BANNER_PREFIX = b'Linux version '
 LINUX_BANNER_REGEX = LINUX_BANNER_PREFIX + \
-    r'([0-9]+[.][0-9]+[.][0-9]+).* \(.*@.*\) \(.*\) .*\n'
+    r'(?P<release>(?P<version>[0-9]+[.][0-9]+[.][0-9]+).*) \(.*@.*\) \(.*\) .*\n'
 
 
-def get_version(input_bytes, start_idx):
+def get_from_release(input_bytes, start_idx, key):
   null_idx = input_bytes.find('\x00', start_idx)
   if null_idx < 0:
     return None
@@ -53,24 +53,43 @@
     return None
   mo = re.match(LINUX_BANNER_REGEX, linux_banner)
   if mo:
-    return mo.group(1)
+    return mo.group(key)
   return None
 
 
-def dump_version(input_bytes):
+def dump_from_release(input_bytes, key):
+  """
+  Helper of dump_version and dump_release
+  """
   idx = 0
   while True:
     idx = input_bytes.find(LINUX_BANNER_PREFIX, idx)
     if idx < 0:
       return None
 
-    version = get_version(input_bytes, idx)
-    if version:
-      return version
+    value = get_from_release(input_bytes, idx, key)
+    if value:
+      return value
 
     idx += len(LINUX_BANNER_PREFIX)
 
 
+def dump_version(input_bytes):
+  """
+  Dump kernel version, w.x.y, from input_bytes. Search for the string
+  "Linux version " and do pattern matching after it. See LINUX_BANNER_REGEX.
+  """
+  return dump_from_release(input_bytes, "version")
+
+
+def dump_release(input_bytes):
+  """
+  Dump kernel release, w.x.y-..., from input_bytes. Search for the string
+  "Linux version " and do pattern matching after it. See LINUX_BANNER_REGEX.
+  """
+  return dump_from_release(input_bytes, "release")
+
+
 def dump_configs(input_bytes):
   """
   Dump kernel configuration from input_bytes. This can be done when
@@ -140,6 +159,23 @@
       if o:
         return o
 
+
+def dump_to_file(f, dump_fn, input_bytes, desc):
+  """
+  Call decompress_dump(dump_fn, input_bytes) and write to f. If it fails, return
+  False; otherwise return True.
+  """
+  if f is not None:
+    o = decompress_dump(dump_fn, input_bytes)
+    if o:
+      f.write(o)
+    else:
+      sys.stderr.write(
+          "Cannot extract kernel {}".format(desc))
+      return False
+  return True
+
+
 def main():
   parser = argparse.ArgumentParser(
       formatter_class=argparse.RawTextHelpFormatter,
@@ -165,6 +201,13 @@
                       nargs='?',
                       type=argparse.FileType('wb'),
                       const=sys.stdout)
+  parser.add_argument('--output-release',
+                      help='If specified, write kernel release. Use stdout if '
+                           'no file is specified.',
+                      metavar='FILE',
+                      nargs='?',
+                      type=argparse.FileType('wb'),
+                      const=sys.stdout)
   parser.add_argument('--tools',
                       help='Decompression tools to use. If not specified, PATH '
                            'is searched.',
@@ -181,25 +224,18 @@
   input_bytes = args.input.read()
 
   ret = 0
-  if args.output_configs is not None:
-    o = decompress_dump(dump_configs, input_bytes)
-    if o:
-      args.output_configs.write(o)
-    else:
-      sys.stderr.write(
-          "Cannot extract kernel configs in {}".format(args.input.name))
-      ret = 1
-  if args.output_version is not None:
-    o = decompress_dump(dump_version, input_bytes)
-    if o:
-      args.output_version.write(o)
-    else:
-      sys.stderr.write(
-          "Cannot extract kernel versions in {}".format(args.input.name))
-      ret = 1
+  if not dump_to_file(args.output_configs, dump_configs, input_bytes,
+                      "configs in {}".format(args.input.name)):
+    ret = 1
+  if not dump_to_file(args.output_version, dump_version, input_bytes,
+                      "version in {}".format(args.input.name)):
+    ret = 1
+  if not dump_to_file(args.output_release, dump_release, input_bytes,
+                      "kernel release in {}".format(args.input.name)):
+    ret = 1
 
   return ret
 
 
 if __name__ == '__main__':
-  exit(main())
+  sys.exit(main())
diff --git a/tools/fs_config/fs_config_generator.py b/tools/fs_config/fs_config_generator.py
index 1405fd3..940a398 100755
--- a/tools/fs_config/fs_config_generator.py
+++ b/tools/fs_config/fs_config_generator.py
@@ -299,11 +299,10 @@
     Parses a C header file and extracts lines starting with #define AID_<name>
     while capturing the OEM defined ranges and ignoring other ranges. It also
     skips some hardcoded AIDs it doesn't need to generate a mapping for.
-    It provides some basic sanity checks. The information extracted from this
-    file can later be used to sanity check other things (like oem ranges) as
-    well as generating a mapping of names to uids. It was primarily designed to
-    parse the private/android_filesystem_config.h, but any C header should
-    work.
+    It provides some basic checks. The information extracted from this file can
+    later be used to quickly check other things (like oem ranges) as well as
+    generating a mapping of names to uids. It was primarily designed to parse
+    the private/android_filesystem_config.h, but any C header should work.
     """
 
     _SKIP_AIDS = [
@@ -394,7 +393,7 @@
     def _handle_aid(self, identifier, value):
         """Handle an AID C #define.
 
-        Handles an AID, sanity checking, generating the friendly name and
+        Handles an AID, quick checking, generating the friendly name and
         adding it to the internal maps. Internal use only.
 
         Args:
@@ -422,7 +421,7 @@
         """Process, check and populate internal data structures.
 
         After parsing and generating the internal data structures, this method
-        is responsible for sanity checking ALL of the acquired data.
+        is responsible for quickly checking ALL of the acquired data.
 
         Raises:
             ValueError: With the message set to indicate the specific error.
diff --git a/tools/releasetools/apex_utils.py b/tools/releasetools/apex_utils.py
index 1c61938..afebc40 100644
--- a/tools/releasetools/apex_utils.py
+++ b/tools/releasetools/apex_utils.py
@@ -273,7 +273,7 @@
     else:
       payload_info[key] = value
 
-  # Sanity check.
+  # Validation check.
   for key in ('Algorithm', 'Salt', 'apex.key', 'Hash Algorithm'):
     if key not in payload_info:
       raise ApexInfoError(
diff --git a/tools/releasetools/blockimgdiff.py b/tools/releasetools/blockimgdiff.py
index 8b6a690..d33c2f7 100644
--- a/tools/releasetools/blockimgdiff.py
+++ b/tools/releasetools/blockimgdiff.py
@@ -521,7 +521,7 @@
         stashed_blocks -= free_size
 
       if common.OPTIONS.cache_size is not None:
-        # Sanity check: abort if we're going to need more stash space than
+        # Validation check: abort if we're going to need more stash space than
         # the allowed size (cache_size * threshold). There are two purposes
         # of having a threshold here. a) Part of the cache may have been
         # occupied by some recovery logs. b) It will buy us some time to deal
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 25ccea0..1846a67 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -96,6 +96,7 @@
     self.cache_size = None
     self.stash_threshold = 0.8
     self.logfile = None
+    self.host_tools = {}
 
 
 OPTIONS = Options()
@@ -213,6 +214,10 @@
   logging.config.dictConfig(config)
 
 
+def SetHostToolLocation(tool_name, location):
+  OPTIONS.host_tools[tool_name] = location
+
+
 def Run(args, verbose=None, **kwargs):
   """Creates and returns a subprocess.Popen object.
 
@@ -234,6 +239,14 @@
     kwargs['stderr'] = subprocess.STDOUT
   if 'universal_newlines' not in kwargs:
     kwargs['universal_newlines'] = True
+
+  # If explicitly set host tool location before, use that location to avoid
+  # PATH violation. Make a copy of args in case client relies on the content
+  # of args later.
+  if args and args[0] in OPTIONS.host_tools:
+    args = args[:]
+    args[0] = OPTIONS.host_tools[args[0]]
+
   # Don't log any if caller explicitly says so.
   if verbose:
     logger.info("  Running: \"%s\"", " ".join(args))
@@ -601,7 +614,7 @@
 def LoadInfoDict(input_file, repacking=False):
   """Loads the key/value pairs from the given input target_files.
 
-  It reads `META/misc_info.txt` file in the target_files input, does sanity
+  It reads `META/misc_info.txt` file in the target_files input, does validation
   checks and returns the parsed key/value pairs for to the given build. It's
   usually called early when working on input target_files files, e.g. when
   generating OTAs, or signing builds. Note that the function may be called
@@ -1177,7 +1190,7 @@
   if args and args.strip():
     split_args = shlex.split(args)
     for index, arg in enumerate(split_args[:-1]):
-      # Sanity check that the image file exists. Some images might be defined
+      # Check that the image file exists. Some images might be defined
       # as a path relative to source tree, which may not be available at the
       # same location when running this script (we have the input target_files
       # zip only). For such cases, we additionally scan other locations (e.g.
diff --git a/tools/releasetools/edify_generator.py b/tools/releasetools/edify_generator.py
index b9c9b19..033c02e 100644
--- a/tools/releasetools/edify_generator.py
+++ b/tools/releasetools/edify_generator.py
@@ -301,7 +301,7 @@
             len(patchpairs) == 2), \
         "Failed to handle unknown format. Use PatchPartition() instead."
 
-    # Also sanity check the args.
+    # Also validity check the args.
     assert tokens[3] == patchpairs[0], \
         "Found mismatching values for source SHA-1: {} vs {}".format(
             tokens[3], patchpairs[0])
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index c3dcf0d..b70044e 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -1940,7 +1940,7 @@
 
 def GenerateNonAbOtaPackage(target_file, output_file, source_file=None):
   """Generates a non-A/B OTA package."""
-  # Sanity check the loaded info dicts first.
+  # Check the loaded info dicts first.
   if OPTIONS.info_dict.get("no_recovery") == "true":
     raise common.ExternalError(
         "--- target build has specified no recovery ---")
diff --git a/tools/releasetools/sign_target_files_apks.py b/tools/releasetools/sign_target_files_apks.py
index 5d10c40..b4646b7 100755
--- a/tools/releasetools/sign_target_files_apks.py
+++ b/tools/releasetools/sign_target_files_apks.py
@@ -1116,7 +1116,7 @@
               privkey.endswith(privkey_suffix) and
               pubkey[:-pubkey_suffix_len] == privkey[:-privkey_suffix_len])
 
-    # Sanity check on the container key names, as we'll carry them without the
+    # Check the container key names, as we'll carry them without the
     # extensions. This doesn't apply to payload keys though, which we will use
     # full names only.
     container_cert = matches.group("CONTAINER_CERT")
@@ -1149,7 +1149,7 @@
       apex_name, key = a.split("=")
       OPTIONS.extra_apex_payload_keys[apex_name] = key
     elif o == "--skip_apks_with_path_prefix":
-      # Sanity check the prefix, which must be in all upper case.
+      # Check the prefix, which must be in all upper case.
       prefix = a.split('/')[0]
       if not prefix or prefix != prefix.upper():
         raise ValueError("Invalid path prefix '%s'" % (a,))
diff --git a/tools/releasetools/test_add_img_to_target_files.py b/tools/releasetools/test_add_img_to_target_files.py
index c82a40b..efa60b6 100644
--- a/tools/releasetools/test_add_img_to_target_files.py
+++ b/tools/releasetools/test_add_img_to_target_files.py
@@ -370,7 +370,7 @@
     with zipfile.ZipFile(output_file, 'w') as output_zip:
       # Create an existing META/care_map.pb entry.
       common.ZipWriteStr(output_zip, 'META/care_map.pb',
-                         'dummy care_map.pb')
+                         'fake care_map.pb')
 
       # Request to add META/care_map.pb again.
       AddCareMapForAbOta(output_zip, ['system', 'vendor'], image_paths)
diff --git a/tools/releasetools/test_check_target_files_vintf.py b/tools/releasetools/test_check_target_files_vintf.py
index d326229..8725dd6 100644
--- a/tools/releasetools/test_check_target_files_vintf.py
+++ b/tools/releasetools/test_check_target_files_vintf.py
@@ -87,8 +87,8 @@
     return test_dir
 
   @test_utils.SkipIfExternalToolsUnavailable()
-  def test_CheckVintf_sanity(self):
-    msg = 'Sanity check with skeleton target files failed.'
+  def test_CheckVintf_skeleton(self):
+    msg = 'vintf check with skeleton target files failed.'
     test_dir = self.prepare_test_dir('does-not-exist')
     self.assertTrue(CheckVintf(test_dir), msg=msg)
 
diff --git a/tools/releasetools/test_common.py b/tools/releasetools/test_common.py
index 787e675..81ee53d 100644
--- a/tools/releasetools/test_common.py
+++ b/tools/releasetools/test_common.py
@@ -1619,12 +1619,12 @@
 
   def setUp(self):
     self._tempdir = common.MakeTempDir()
-    # Create a dummy dict that contains the fstab info for boot&recovery.
+    # Create a fake dict that contains the fstab info for boot&recovery.
     self._info = {"fstab" : {}}
-    dummy_fstab = [
+    fake_fstab = [
         "/dev/soc.0/by-name/boot /boot emmc defaults defaults",
         "/dev/soc.0/by-name/recovery /recovery emmc defaults defaults"]
-    self._info["fstab"] = common.LoadRecoveryFSTab("\n".join, 2, dummy_fstab)
+    self._info["fstab"] = common.LoadRecoveryFSTab("\n".join, 2, fake_fstab)
     # Construct the gzipped recovery.img and boot.img
     self.recovery_data = bytearray([
         0x1f, 0x8b, 0x08, 0x00, 0x81, 0x11, 0x02, 0x5a, 0x00, 0x03, 0x2b, 0x4a,
diff --git a/tools/releasetools/test_ota_from_target_files.py b/tools/releasetools/test_ota_from_target_files.py
index 7783f96..07b2e05 100644
--- a/tools/releasetools/test_ota_from_target_files.py
+++ b/tools/releasetools/test_ota_from_target_files.py
@@ -61,7 +61,7 @@
         'META/ab_partitions.txt',
         '\n'.join([partition[1] for partition in ab_partitions]))
 
-    # Create dummy images for each of them.
+    # Create fake images for each of them.
     for path, partition in ab_partitions:
       target_files_zip.writestr(
           '{}/{}.img'.format(path, partition),
@@ -754,7 +754,7 @@
 
 
 class StreamingPropertyFilesTest(PropertyFilesTest):
-  """Additional sanity checks specialized for StreamingPropertyFiles."""
+  """Additional validity checks specialized for StreamingPropertyFiles."""
 
   def test_init(self):
     property_files = StreamingPropertyFiles()
@@ -835,7 +835,7 @@
 
 
 class AbOtaPropertyFilesTest(PropertyFilesTest):
-  """Additional sanity checks specialized for AbOtaPropertyFiles."""
+  """Additional validity checks specialized for AbOtaPropertyFiles."""
 
   # The size for payload and metadata signature size.
   SIGNATURE_SIZE = 256
@@ -1003,7 +1003,7 @@
 
 
 class NonAbOtaPropertyFilesTest(PropertyFilesTest):
-  """Additional sanity checks specialized for NonAbOtaPropertyFiles."""
+  """Additional validity checks specialized for NonAbOtaPropertyFiles."""
 
   def test_init(self):
     property_files = NonAbOtaPropertyFiles()
diff --git a/tools/releasetools/test_verity_utils.py b/tools/releasetools/test_verity_utils.py
index d02bc7f..a850390 100644
--- a/tools/releasetools/test_verity_utils.py
+++ b/tools/releasetools/test_verity_utils.py
@@ -233,8 +233,8 @@
         os.path.join(get_testdata_dir(), 'testkey_mincrypt'))
 
   @SkipIfExternalToolsUnavailable()
-  def test_Build_SanityCheck(self):
-    # A sanity check for the test itself: the image shouldn't be verifiable
+  def test_Build_ValidationCheck(self):
+    # A validity check for the test itself: the image shouldn't be verifiable
     # with wrong key.
     self.assertRaises(
         common.ExternalError,
diff --git a/tools/releasetools/testdata/apexkeys_framework.txt b/tools/releasetools/testdata/apexkeys_framework.txt
index b9caf9e..a827f22 100644
--- a/tools/releasetools/testdata/apexkeys_framework.txt
+++ b/tools/releasetools/testdata/apexkeys_framework.txt
@@ -1,5 +1,5 @@
 name="com.android.conscrypt.apex" public_key="external/conscrypt/apex/com.android.conscrypt.avbpubkey" private_key="external/conscrypt/apex/com.android.conscrypt.pem" container_certificate="external/conscrypt/apex/com.android.conscrypt.x509.pem" container_private_key="external/conscrypt/apex/com.android.conscrypt.pk8" partition="system"
-name="com.android.dummy_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
+name="com.android.fake_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
 name="com.android.runtime.apex" public_key="bionic/apex/com.android.runtime.avbpubkey" private_key="bionic/apex/com.android.runtime.pem" container_certificate="bionic/apex/com.android.runtime.x509.pem" container_private_key="bionic/apex/com.android.runtime.pk8" partition="system"
 name="com.android.vndk.current.on_vendor.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="vendor"
 name="com.android.vndk.v27.apex" public_key="packages/modules/vndk/apex/com.android.vndk.v27.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.v27.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.v27.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.v27.pk8" partition="system_ext"
diff --git a/tools/releasetools/testdata/apexkeys_merge.txt b/tools/releasetools/testdata/apexkeys_merge.txt
index a9355d7..5b1b544 100644
--- a/tools/releasetools/testdata/apexkeys_merge.txt
+++ b/tools/releasetools/testdata/apexkeys_merge.txt
@@ -1,5 +1,5 @@
 name="com.android.conscrypt.apex" public_key="external/conscrypt/apex/com.android.conscrypt.avbpubkey" private_key="external/conscrypt/apex/com.android.conscrypt.pem" container_certificate="external/conscrypt/apex/com.android.conscrypt.x509.pem" container_private_key="external/conscrypt/apex/com.android.conscrypt.pk8" partition="system"
-name="com.android.dummy_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
+name="com.android.fake_product.apex" public_key="selected" private_key="selected" container_certificate="selected" container_private_key="selected" partition="product"
 name="com.android.runtime.apex" public_key="bionic/apex/com.android.runtime.avbpubkey" private_key="bionic/apex/com.android.runtime.pem" container_certificate="bionic/apex/com.android.runtime.x509.pem" container_private_key="bionic/apex/com.android.runtime.pk8" partition="system"
 name="com.android.vndk.current.on_vendor.apex" public_key="packages/modules/vndk/apex/com.android.vndk.current.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.current.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.current.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.current.pk8" partition="vendor"
 name="com.android.vndk.v27.apex" public_key="packages/modules/vndk/apex/com.android.vndk.v27.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.v27.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.v27.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.v27.pk8" partition="system_ext"
diff --git a/tools/releasetools/testdata/apexkeys_vendor.txt b/tools/releasetools/testdata/apexkeys_vendor.txt
index 7dd3964..c6a9771 100644
--- a/tools/releasetools/testdata/apexkeys_vendor.txt
+++ b/tools/releasetools/testdata/apexkeys_vendor.txt
@@ -1,5 +1,5 @@
 name="com.android.conscrypt.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="system"
-name="com.android.dummy_product.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="product"
+name="com.android.fake_product.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="product"
 name="com.android.runtime.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="system"
 name="com.android.vndk.current.on_vendor.apex" public_key="packages/modules/vndk/apex/com.android.vndk.current.pubkey" private_key="packages/modules/vndk/apex/com.android.vndk.current.pem" container_certificate="packages/modules/vndk/apex/com.android.vndk.current.x509.pem" container_private_key="packages/modules/vndk/apex/com.android.vndk.current.pk8" partition="vendor"
 name="com.android.vndk.v27.apex" public_key="not_selected" private_key="not_selected" container_certificate="not_selected" container_private_key="not_selected" partition="system_ext"