Don't accept null urls

build.gradle.kts

@@ -1,6 +1,6 @@
 plugins {
     val kotlinVersion = "1.9.22"
-    id("com.android.application") version "8.4.0" apply (false)
+    id("com.android.application") version "8.1.4" apply (false)
     id("org.jetbrains.kotlin.android") version kotlinVersion apply (false)
     id("org.jetbrains.kotlin.kapt") version kotlinVersion apply (false)
     id("org.jetbrains.kotlin.multiplatform") version kotlinVersion apply (false)

build.sh

@@ -64,7 +64,6 @@ fail() {
 core_build() {
     log_info "Building uhabits-core..."
     $GRADLE ktlintCheck || fail
-    $GRADLE lintDebug || fail
     $GRADLE :uhabits-core:build || fail
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

uhabits-android/build.gradle.kts

@@ -19,7 +19,7 @@
 
 plugins {
     id("com.github.triplet.play") version "3.8.6"
-    id("com.android.application") version "8.4.0"
+    id("com.android.application") version "8.1.4"
     id("org.jetbrains.kotlin.android")
     id("org.jetbrains.kotlin.kapt")
     id("org.jlleitschuh.gradle.ktlint")
@@ -91,10 +91,6 @@ android {
     buildFeatures {
         viewBinding = true
     }
-
-    lint {
-        abortOnError = false
-    }
 }
 
 dependencies {

uhabits-android/src/androidTest/java/org/isoron/uhabits/acceptance/steps/CommonSteps.kt

@@ -132,7 +132,7 @@ object CommonSteps : BaseUserInterfaceTest() {
     }
 
     @Throws(Exception::class)
-    fun verifyOpensWebsite(url: String?) {
+    fun verifyOpensWebsite(url: String) {
         var browserPkg = "org.chromium.webview_shell"
         if (SDK_INT <= Build.VERSION_CODES.M) {
             browserPkg = "com.android.browser"

uhabits-core/src/jvmTest/java/org/isoron/uhabits/core/utils/DateUtilsTest.kt

@@ -120,15 +120,10 @@ class DateUtilsTest : BaseUnitTest() {
 
     @Test
     fun getWeekdaysInMonth() {
-        fun getCalendarUTC(year: Int, month: Int, dayOfMonth: Int) =
+        val february = GregorianCalendar(2018, Calendar.FEBRUARY, 1)
-            GregorianCalendar(year, month, dayOfMonth).apply {
+        val leapFebruary = GregorianCalendar(2020, Calendar.FEBRUARY, 1)
-                timeZone = TimeZone.getTimeZone("UTC")
+        val month = GregorianCalendar(2020, Calendar.APRIL, 1)
-            }
+        val longMonth = GregorianCalendar(2020, Calendar.AUGUST, 1)
-
-        val february = getCalendarUTC(2018, Calendar.FEBRUARY, 1)
-        val leapFebruary = getCalendarUTC(2020, Calendar.FEBRUARY, 1)
-        val month = getCalendarUTC(2020, Calendar.APRIL, 1)
-        val longMonth = getCalendarUTC(2020, Calendar.AUGUST, 1)
 
         assertThat(
             arrayOf(4, 4, 4, 4, 4, 4, 4),