diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index b45eaff..e6fe0c4 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,7 +1,4 @@
[Hook Scripts]
-checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py
- --sha ${PREUPLOAD_COMMIT}
- --config_xml tools/checkstyle/checkstyle.xml
[Builtin Hooks]
commit_msg_test_field = true
diff --git a/library/self.gradle b/library/self.gradle
index 78e5011..f649581 100644
--- a/library/self.gradle
+++ b/library/self.gradle
@@ -51,8 +51,8 @@ android.sourceSets {
java.srcDirs = ['test/robotest/src']
dependencies {
- testImplementation 'org.robolectric:robolectric:3.6.1'
- testImplementation 'org.robolectric:shadows-framework:3.6.1'
+ testImplementation 'org.robolectric:robolectric:4.0-alpha-3'
+ testImplementation 'org.robolectric:shadows-framework:4.0-alpha-3'
testImplementation 'junit:junit:4.+'
testImplementation 'com.google.truth:truth:0.31'
testImplementation 'org.mockito:mockito-core:1.9.5'
diff --git a/tools/checkstyle/checkstyle.xml b/tools/checkstyle/checkstyle.xml
deleted file mode 100644
index 0dbccae..0000000
--- a/tools/checkstyle/checkstyle.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-
-
-
-
-
-]>
-
-
- &defaultModuleChecks;
- &defaultCopyrightCheck;
-
- &defaultJavadocChecks;
- &defaultTreewalkerChecks;
-
-
-
-
-
-
diff --git a/tools/checkstyle/checkstyle_suppression.xml b/tools/checkstyle/checkstyle_suppression.xml
deleted file mode 100644
index 6bf7b21..0000000
--- a/tools/checkstyle/checkstyle_suppression.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-
-
-
-
-
-
-
-
-
-