diff --git a/build.gradle.kts b/build.gradle.kts
index cff8769d98..43fe372486 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -188,7 +188,7 @@ subprojects {
         }
     }
 
-    configurations["compileOnly"].extendsFrom(configurations["annotationProcessor"])
+    configurations.compileOnly.get().extendsFrom(configurations["annotationProcessor"])
 }
 
 application {
diff --git a/cache/cache.gradle.kts b/cache/cache.gradle.kts
index 686be529e8..342c531347 100644
--- a/cache/cache.gradle.kts
+++ b/cache/cache.gradle.kts
@@ -57,10 +57,6 @@ dependencies {
 
 tasks {
     processTestResources {
-        finalizedBy("filterTestResources")
-    }
-
-    register<Copy>("filterTestResources") {
         val tokens = mapOf(
                 "rs.version" to ProjectVersions.rsversion.toString(),
                 "cache.version" to ProjectVersions.cacheversion.toString()
@@ -68,12 +64,9 @@ tasks {
 
         inputs.properties(tokens)
 
-        from("src/test/resources") {
-            include("cache.properties")
+        filesMatching("cache.properties") {
+            filter(ReplaceTokens::class, "tokens" to tokens)
+            filteringCharset = "UTF-8"
         }
-        into("${buildDir}/resources/test")
-
-        filter(ReplaceTokens::class, "tokens" to tokens)
-        filteringCharset = "UTF-8"
     }
 }
diff --git a/deobfuscator/deobfuscator.gradle.kts b/deobfuscator/deobfuscator.gradle.kts
index 0da4c139ef..be7e4c2ff4 100644
--- a/deobfuscator/deobfuscator.gradle.kts
+++ b/deobfuscator/deobfuscator.gradle.kts
@@ -29,7 +29,11 @@ plugins {
     id("com.github.hauner.jarTest") version "1.0.1"
 }
 
-val deobjars = configurations.create("deobjars")
+val deobjars: Configuration = configurations.create("deobjars")
+
+configurations {
+    testImplementation.get().extendsFrom(deobjars)
+}
 
 dependencies {
     deobjars(group = "net.runelite.rs", name = "vanilla", version = ProjectVersions.rsversion.toString())
@@ -50,7 +54,6 @@ dependencies {
 
     runtimeOnly(group = "org.slf4j", name = "slf4j-simple", version = "1.7.32")
 
-    testImplementation(deobjars)
     testImplementation(group = "junit", name = "junit", version = "4.12")
     testImplementation(group = "org.mockito", name = "mockito-core", version = "3.1.0")
 }
@@ -63,49 +66,36 @@ tasks {
     )
 
     processResources {
-        finalizedBy("filterResources")
-    }
-
-    register<Copy>("filterResources") {
         inputs.properties(tokens)
 
-        from("src/main/resources") {
-            include("deob.properties")
+        filesMatching("deob.properties") {
+            filter(ReplaceTokens::class, "tokens" to tokens)
+            filteringCharset = "UTF-8"
         }
-        into("${buildDir}/resources/main")
-
-        filter(ReplaceTokens::class, "tokens" to tokens)
-        filteringCharset = "UTF-8"
     }
 
     processTestResources {
-        finalizedBy("filterTestResources")
-    }
-
-    register<Copy>("filterTestResources") {
         inputs.properties(tokens)
 
-        from("src/test/resources") {
-            include("deob-test.properties")
+        filesMatching("deob-test.properties") {
+            filter(ReplaceTokens::class, "tokens" to tokens)
+            filteringCharset = "UTF-8"
         }
-        into("${buildDir}/resources/test")
-
-        filter(ReplaceTokens::class, "tokens" to tokens)
-        filteringCharset = "UTF-8"
     }
+
     // TODO: Enable assertions on all 3
     register<JavaExec>("Downloader\$main()") {
         group = "gamepack"
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.gamepack.Downloader"
+        mainClass.set("net.runelite.gamepack.Downloader")
     }
 
     register<JavaExec>("Deob\$main()") {
         group = "gamepack"
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.deob.Deob"
+        mainClass.set("net.runelite.deob.Deob")
         args = listOf(tokens["vanilla.jar"], "$buildDir/libs/deobfuscated-$version.jar")
     }
 
@@ -113,7 +103,7 @@ tasks {
         group = "gamepack"
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.deob.updater.UpdateMappings"
+        mainClass.set("net.runelite.deob.updater.UpdateMappings")
     }
 }
 
diff --git a/http-api/http-api.gradle.kts b/http-api/http-api.gradle.kts
index 6acef6f2ef..96db0b6785 100644
--- a/http-api/http-api.gradle.kts
+++ b/http-api/http-api.gradle.kts
@@ -46,10 +46,6 @@ dependencies {
 
 tasks {
     processResources {
-        finalizedBy("filterResources")
-    }
-
-    register<Copy>("filterResources") {
         val tokens = mapOf(
                 "projectver" to ProjectVersions.rlVersion,
                 "rsver" to ProjectVersions.rsversion.toString(),
@@ -58,12 +54,9 @@ tasks {
 
         inputs.properties(tokens)
 
-        from("src/main/resources") {
-            include("runelite.properties")
+        filesMatching("runelite.properties") {
+            filter(ReplaceTokens::class, "tokens" to tokens)
+            filteringCharset = "UTF-8"
         }
-        into("${buildDir}/resources/main")
-
-        filter(ReplaceTokens::class, "tokens" to tokens)
-        filteringCharset = "UTF-8"
     }
 }
diff --git a/injector/injector.gradle.kts b/injector/injector.gradle.kts
index 4683c894e3..cb1be4692a 100644
--- a/injector/injector.gradle.kts
+++ b/injector/injector.gradle.kts
@@ -42,11 +42,14 @@ tasks.register<JavaExec>("inject") {
 
     enableAssertions = true
 
-    main = "com.openosrs.injector.Injector"
+    classpath = project.sourceSets.main.get().runtimeClasspath
+    mainClass.set("com.openosrs.injector.Injector")
+
     val out = "${project.extra["rootPath"]}/runelite-client/build/injected/injected-client.oprs"
     outputs.file(out)
-    classpath = sourceSets["main"].runtimeClasspath
+
     args("--outmode", "jar", "--vanilla", vanillaDep.singleFile, "--version", openosrsVersion, "--output", out)
+
     outputs.upToDateWhen {
         false
     }
diff --git a/runelite-client/runelite-client.gradle.kts b/runelite-client/runelite-client.gradle.kts
index df125c110c..19fd836bf0 100644
--- a/runelite-client/runelite-client.gradle.kts
+++ b/runelite-client/runelite-client.gradle.kts
@@ -28,7 +28,7 @@ import java.text.SimpleDateFormat
 import java.util.Date
 
 plugins {
-    id("com.github.johnrengelman.shadow") version "6.1.0"
+    id("com.github.johnrengelman.shadow") version "7.1.2"
     java
 }
 
@@ -137,10 +137,6 @@ tasks {
     }
 
     processResources {
-        finalizedBy("filterResources")
-    }
-
-    register<Copy>("filterResources") {
         val tokens = mapOf(
                 "project.version" to ProjectVersions.rlVersion,
                 "rs.version" to ProjectVersions.rsversion.toString(),
@@ -151,12 +147,10 @@ tasks {
 
         inputs.properties(tokens)
 
-        from("src/main/resources/")
-        include("**/*.properties")
-        into("${buildDir}/resources/main")
-
-        filter(ReplaceTokens::class, "tokens" to tokens)
-        filteringCharset = "UTF-8"
+        filesMatching("**/*.properties") {
+            filter(ReplaceTokens::class, "tokens" to tokens)
+            filteringCharset = "UTF-8"
+        }
     }
 
     register<Copy>("packInjectedClient") {
@@ -196,7 +190,7 @@ tasks {
     register<JavaExec>("RuneLite.main()") {
         group = "openosrs"
 
-        classpath = sourceSets["main"].runtimeClasspath
+        classpath = project.sourceSets.main.get().runtimeClasspath
         enableAssertions = true
         mainClass.set("net.runelite.client.RuneLite")
     }
diff --git a/runelite-mixins/runelite-mixins.gradle.kts b/runelite-mixins/runelite-mixins.gradle.kts
index 45a072fd45..5d5b053f7c 100644
--- a/runelite-mixins/runelite-mixins.gradle.kts
+++ b/runelite-mixins/runelite-mixins.gradle.kts
@@ -40,6 +40,7 @@ tasks {
         targetCompatibility = JavaVersion.VERSION_1_8
         disableAutoTargetJvm()
     }
+
     withType<JavaCompile> {
         options.compilerArgs.addAll(arrayOf("-Xlint:-unchecked"))
     }
diff --git a/runelite-script-assembler-plugin/runelite-script-assembler-plugin.gradle.kts b/runelite-script-assembler-plugin/runelite-script-assembler-plugin.gradle.kts
index e3bb7fc075..25766d7e9e 100644
--- a/runelite-script-assembler-plugin/runelite-script-assembler-plugin.gradle.kts
+++ b/runelite-script-assembler-plugin/runelite-script-assembler-plugin.gradle.kts
@@ -48,7 +48,7 @@ tasks {
         outputs.dir(out)
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.script.AssembleMojo"
+        mainClass.set("net.runelite.script.AssembleMojo")
         args(listOf(inp, out))
 
         doLast {
diff --git a/wiki-scraper/wiki-scraper.gradle.kts b/wiki-scraper/wiki-scraper.gradle.kts
index 73bca607ae..ba04017fa9 100644
--- a/wiki-scraper/wiki-scraper.gradle.kts
+++ b/wiki-scraper/wiki-scraper.gradle.kts
@@ -49,7 +49,7 @@ tasks {
         group = "openosrs"
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.data.App"
+        mainClass.set("net.runelite.data.App")
         args(listOf("npcStats", rootProject.file("./runelite-client/src/main/resources/").absolutePath))
     }
 
@@ -57,7 +57,7 @@ tasks {
         group = "openosrs"
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.data.App"
+        mainClass.set("net.runelite.data.App")
         args(listOf("itemStats", rootProject.file("./runelite-client/src/main/resources/").absolutePath))
     }
 
@@ -65,7 +65,7 @@ tasks {
         group = "openosrs"
 
         classpath = project.sourceSets.main.get().runtimeClasspath
-        main = "net.runelite.data.App"
+        mainClass.set("net.runelite.data.App")
         args(listOf("itemLimits", rootProject.file("./runelite-client/src/main/resources/").absolutePath))
     }
 }