diff --git a/build.gradle b/build.gradle
index cdb80c9a4d..edabb62fda 100644
--- a/build.gradle
+++ b/build.gradle
@@ -58,7 +58,7 @@ buildscript {
 apply plugin: "io.servicetalk.servicetalk-gradle-plugin-internal-root"
 
 // Unfortunately, we can not make this validation part of our servicetalk-gradle-plugin-internal because it requires
-// JDK11 while we build and package out plugin with JDK8.
+// JDK11 while we build and package our plugin with JDK8.
 if (JavaVersion.current().isJava11Compatible()) {
   apply plugin: "com.autonomousapps.dependency-analysis"
 
@@ -67,6 +67,13 @@ if (JavaVersion.current().isJava11Compatible()) {
       all {
         onAny {
           severity("warn")  // FIXME: switch to "fail" when all issues are addressed
+        }
+        onUnusedDependencies {
+          // We use it for log4j2.xml configuration
+          exclude(":servicetalk-test-resources")
+        }
+        onUsedTransitiveDependencies {
+          // We import it as api dependency via :servicetalk-annotations
           exclude("com.google.code.findbugs:jsr305")
         }
       }
diff --git a/gradle.properties b/gradle.properties
index b23ba51e61..7d6b2b0fef 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -98,7 +98,5 @@ spotbugsPluginVersion=5.0.13
 dependencyAnalysisPluginVersion=2.6.1
 
 apacheDirectoryServerVersion=1.5.7
-commonsLangVersion=2.6
 grpcVersion=1.69.0
-javaxAnnotationsApiVersion=1.3.5
 jsonUnitVersion=2.40.1
diff --git a/servicetalk-benchmarks/build.gradle b/servicetalk-benchmarks/build.gradle
index adf59937dd..f2b26ab0b7 100644
--- a/servicetalk-benchmarks/build.gradle
+++ b/servicetalk-benchmarks/build.gradle
@@ -27,6 +27,7 @@ dependencies {
   implementation project(":servicetalk-buffer-netty")
   implementation project(":servicetalk-concurrent-api")
   implementation project(":servicetalk-concurrent-api-internal")
+  implementation project(":servicetalk-concurrent-internal")
   implementation project(":servicetalk-http-api")
   implementation project(":servicetalk-http-netty")
   implementation project(":servicetalk-transport-netty-internal")
@@ -34,11 +35,6 @@ dependencies {
   implementation project(":servicetalk-data-jackson")
   implementation "io.netty:netty-codec-http"
   implementation "org.openjdk.jmh:jmh-core:$jmhCoreVersion"
-
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation project(":servicetalk-concurrent-internal")
-  testImplementation project(":servicetalk-concurrent-api-internal")
-  testImplementation project(":servicetalk-test-resources")
 }
 
 jmh {
diff --git a/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/ConnectableBufferOutputStreamBenchmark.java b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/ConnectableBufferOutputStreamBenchmark.java
index 1b05cfed66..ad76b4ca0f 100644
--- a/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/ConnectableBufferOutputStreamBenchmark.java
+++ b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/ConnectableBufferOutputStreamBenchmark.java
@@ -37,6 +37,7 @@
 
 import java.io.IOException;
 import java.util.Random;
+import javax.annotation.Nullable;
 
 import static io.servicetalk.buffer.netty.BufferAllocators.PREFER_HEAP_ALLOCATOR;
 import static io.servicetalk.concurrent.api.SourceAdapters.toSource;
@@ -109,6 +110,7 @@ public class ConnectableBufferOutputStreamBenchmark {
     byte[] data;
     ConnectableBufferOutputStream cbos;
     Publisher<Buffer> publisher;
+    @Nullable
     Subscription subscription;
 
     @Setup(Level.Iteration)
diff --git a/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/package-info.java b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/package-info.java
new file mode 100644
index 0000000000..7651fda731
--- /dev/null
+++ b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/concurrent/package-info.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright © 2025 Apple Inc. and the ServiceTalk project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+@ElementsAreNonnullByDefault
+package io.servicetalk.benchmark.concurrent;
+
+import io.servicetalk.annotations.ElementsAreNonnullByDefault;
diff --git a/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/http/package-info.java b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/http/package-info.java
new file mode 100644
index 0000000000..bb157f254e
--- /dev/null
+++ b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/http/package-info.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright © 2025 Apple Inc. and the ServiceTalk project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+@ElementsAreNonnullByDefault
+package io.servicetalk.benchmark.http;
+
+import io.servicetalk.annotations.ElementsAreNonnullByDefault;
diff --git a/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/loadbalancer/package-info.java b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/loadbalancer/package-info.java
new file mode 100644
index 0000000000..5df037def9
--- /dev/null
+++ b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/loadbalancer/package-info.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright © 2025 Apple Inc. and the ServiceTalk project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+@ElementsAreNonnullByDefault
+package io.servicetalk.benchmark.loadbalancer;
+
+import io.servicetalk.annotations.ElementsAreNonnullByDefault;
diff --git a/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/package-info.java b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/package-info.java
new file mode 100644
index 0000000000..eeadc9cc6a
--- /dev/null
+++ b/servicetalk-benchmarks/src/jmh/java/io/servicetalk/benchmark/package-info.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright © 2025 Apple Inc. and the ServiceTalk project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+@ElementsAreNonnullByDefault
+package io.servicetalk.benchmark;
+
+import io.servicetalk.annotations.ElementsAreNonnullByDefault;
diff --git a/servicetalk-buffer-api/build.gradle b/servicetalk-buffer-api/build.gradle
index 8e3ff5ece9..c166151c38 100644
--- a/servicetalk-buffer-api/build.gradle
+++ b/servicetalk-buffer-api/build.gradle
@@ -23,7 +23,6 @@ dependencies {
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
 
   testFixturesApi "org.hamcrest:hamcrest:$hamcrestVersion"
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
diff --git a/servicetalk-circuit-breaker-resilience4j/build.gradle b/servicetalk-circuit-breaker-resilience4j/build.gradle
index 4003280971..27a6545c1e 100644
--- a/servicetalk-circuit-breaker-resilience4j/build.gradle
+++ b/servicetalk-circuit-breaker-resilience4j/build.gradle
@@ -24,5 +24,4 @@ dependencies {
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
-  testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
 }
diff --git a/servicetalk-client-api-internal/build.gradle b/servicetalk-client-api-internal/build.gradle
index 6fed1e132b..8a511a9505 100644
--- a/servicetalk-client-api-internal/build.gradle
+++ b/servicetalk-client-api-internal/build.gradle
@@ -27,10 +27,9 @@ dependencies {
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation testFixtures(project(":servicetalk-concurrent-api"))
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
-  testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
diff --git a/servicetalk-client-api/build.gradle b/servicetalk-client-api/build.gradle
index 070a4d6478..ec2a289040 100644
--- a/servicetalk-client-api/build.gradle
+++ b/servicetalk-client-api/build.gradle
@@ -26,12 +26,11 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation project(":servicetalk-concurrent-test-internal")
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
-  testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
diff --git a/servicetalk-concurrent-api-test/build.gradle b/servicetalk-concurrent-api-test/build.gradle
index b855c9dddb..3931767cd3 100644
--- a/servicetalk-concurrent-api-test/build.gradle
+++ b/servicetalk-concurrent-api-test/build.gradle
@@ -30,5 +30,4 @@ dependencies {
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
 }
diff --git a/servicetalk-concurrent-api/build.gradle b/servicetalk-concurrent-api/build.gradle
index 94038b08c5..a92494b85f 100644
--- a/servicetalk-concurrent-api/build.gradle
+++ b/servicetalk-concurrent-api/build.gradle
@@ -35,12 +35,11 @@ dependencies {
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
 
   testFixturesImplementation platform("org.junit:junit-bom:$junit5Version")
-  testFixturesImplementation testFixtures(project(":servicetalk-concurrent-internal"))
+  testFixturesImplementation project(":servicetalk-concurrent-internal")
   testFixturesImplementation project(":servicetalk-utils-internal")
   testFixturesImplementation project(":servicetalk-concurrent-test-internal")
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
   testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testFixturesImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testFixturesImplementation "org.slf4j:slf4j-api:$slf4jVersion"
 }
diff --git a/servicetalk-concurrent-internal/build.gradle b/servicetalk-concurrent-internal/build.gradle
index 28f13f88e6..da7d5ad11c 100644
--- a/servicetalk-concurrent-internal/build.gradle
+++ b/servicetalk-concurrent-internal/build.gradle
@@ -32,7 +32,6 @@ dependencies {
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
 
   testFixturesImplementation platform("org.junit:junit-bom:$junit5Version")
-  testFixturesImplementation project(":servicetalk-annotations")
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
   testFixturesImplementation "org.slf4j:slf4j-api:$slf4jVersion"
 }
diff --git a/servicetalk-data-jackson-jersey/build.gradle b/servicetalk-data-jackson-jersey/build.gradle
index 33b7f3c5e9..59e85ef9cf 100644
--- a/servicetalk-data-jackson-jersey/build.gradle
+++ b/servicetalk-data-jackson-jersey/build.gradle
@@ -39,20 +39,15 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-http-router-jersey"))
-  testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-http-router-predicate")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-transport-netty-internal")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.junit.platform:junit-platform-suite-api:$junitPlatformVersion"
-  testImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+  testImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
+
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
diff --git a/servicetalk-data-jackson-jersey3-jakarta10/build.gradle b/servicetalk-data-jackson-jersey3-jakarta10/build.gradle
index 85d43ba019..96fe2e5bbe 100644
--- a/servicetalk-data-jackson-jersey3-jakarta10/build.gradle
+++ b/servicetalk-data-jackson-jersey3-jakarta10/build.gradle
@@ -99,20 +99,15 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-http-router-jersey3-jakarta10"))
-  testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-http-router-predicate")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-transport-netty-internal")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.junit.platform:junit-platform-suite-api:$junitPlatformVersion"
-  testImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+  testImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
+
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
diff --git a/servicetalk-data-jackson-jersey3-jakarta9/build.gradle b/servicetalk-data-jackson-jersey3-jakarta9/build.gradle
index 529cacb77a..2208cb6928 100644
--- a/servicetalk-data-jackson-jersey3-jakarta9/build.gradle
+++ b/servicetalk-data-jackson-jersey3-jakarta9/build.gradle
@@ -99,20 +99,15 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-http-router-jersey3-jakarta9"))
-  testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-http-router-predicate")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-transport-netty-internal")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.junit.platform:junit-platform-suite-api:$junitPlatformVersion"
-  testImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+  testImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
+
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
diff --git a/servicetalk-data-jackson/build.gradle b/servicetalk-data-jackson/build.gradle
index b33ea4ce30..8c6c29ad2d 100644
--- a/servicetalk-data-jackson/build.gradle
+++ b/servicetalk-data-jackson/build.gradle
@@ -29,12 +29,11 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation project(":servicetalk-test-resources")
   testImplementation project(":servicetalk-buffer-netty")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
diff --git a/servicetalk-data-protobuf-jersey/build.gradle b/servicetalk-data-protobuf-jersey/build.gradle
index 77bd99ef8e..ff61b7e077 100644
--- a/servicetalk-data-protobuf-jersey/build.gradle
+++ b/servicetalk-data-protobuf-jersey/build.gradle
@@ -48,23 +48,18 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-http-router-jersey"))
-  testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-http-router-predicate")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-transport-netty-internal")
-  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
-  testImplementation project(":servicetalk-data-jackson-jersey")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.junit.platform:junit-platform-suite-api:$junitPlatformVersion"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
+  testRuntimeOnly project(":servicetalk-data-jackson-jersey")
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
 
 protobuf {
diff --git a/servicetalk-data-protobuf-jersey3-jakarta10/build.gradle b/servicetalk-data-protobuf-jersey3-jakarta10/build.gradle
index f6da8e7353..5cb63f91b6 100644
--- a/servicetalk-data-protobuf-jersey3-jakarta10/build.gradle
+++ b/servicetalk-data-protobuf-jersey3-jakarta10/build.gradle
@@ -109,23 +109,18 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-http-router-jersey3-jakarta10"))
-  testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-http-router-predicate")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-transport-netty-internal")
-  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
-  testImplementation project(":servicetalk-data-jackson-jersey3-jakarta10")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.junit.platform:junit-platform-suite-api:$junitPlatformVersion"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
+  testRuntimeOnly project(":servicetalk-data-jackson-jersey3-jakarta10")
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
 
 protobuf {
diff --git a/servicetalk-data-protobuf-jersey3-jakarta9/build.gradle b/servicetalk-data-protobuf-jersey3-jakarta9/build.gradle
index 457f713d4c..72dfb79b08 100644
--- a/servicetalk-data-protobuf-jersey3-jakarta9/build.gradle
+++ b/servicetalk-data-protobuf-jersey3-jakarta9/build.gradle
@@ -114,23 +114,18 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-http-router-jersey3-jakarta9"))
-  testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-http-router-predicate")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-transport-netty-internal")
-  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
-  testImplementation project(":servicetalk-data-jackson-jersey3-jakarta9")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.junit.platform:junit-platform-suite-api:$junitPlatformVersion"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
+  testRuntimeOnly project(":servicetalk-data-jackson-jersey3-jakarta9")
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
 
 protobuf {
diff --git a/servicetalk-data-protobuf/build.gradle b/servicetalk-data-protobuf/build.gradle
index 50103adfdd..7df7b90b38 100644
--- a/servicetalk-data-protobuf/build.gradle
+++ b/servicetalk-data-protobuf/build.gradle
@@ -39,14 +39,14 @@ dependencies {
   implementation project(":servicetalk-serializer-utils")
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation project(":servicetalk-test-resources")
   testImplementation project(":servicetalk-buffer-netty")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
 
 protobuf {
diff --git a/servicetalk-dns-discovery-netty/build.gradle b/servicetalk-dns-discovery-netty/build.gradle
index 2e1a95e9a8..921f09d452 100644
--- a/servicetalk-dns-discovery-netty/build.gradle
+++ b/servicetalk-dns-discovery-netty/build.gradle
@@ -48,7 +48,6 @@ dependencies {
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation project(":servicetalk-test-resources")
   testImplementation project(":servicetalk-concurrent-test-internal")
-  testImplementation "commons-lang:commons-lang:$commonsLangVersion"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.apache.directory.server:apacheds-protocol-dns:$apacheDirectoryServerVersion"
diff --git a/servicetalk-encoding-api/build.gradle b/servicetalk-encoding-api/build.gradle
index a4ab85a2cf..fb38eb0b77 100644
--- a/servicetalk-encoding-api/build.gradle
+++ b/servicetalk-encoding-api/build.gradle
@@ -26,7 +26,6 @@ dependencies {
     implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
     testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-    testImplementation "org.junit.jupiter:junit-jupiter-api"
     testImplementation "org.junit.jupiter:junit-jupiter-params"
     testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
 }
diff --git a/servicetalk-encoding-netty/build.gradle b/servicetalk-encoding-netty/build.gradle
index e39c676108..bf4997be5f 100644
--- a/servicetalk-encoding-netty/build.gradle
+++ b/servicetalk-encoding-netty/build.gradle
@@ -30,8 +30,9 @@ dependencies {
     implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
     testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-    testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
     testImplementation "org.junit.jupiter:junit-jupiter-api"
     testImplementation "org.junit.jupiter:junit-jupiter-params"
     testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
+
+    testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
diff --git a/servicetalk-grpc-api/build.gradle b/servicetalk-grpc-api/build.gradle
index a229bddd55..225d4d51f1 100644
--- a/servicetalk-grpc-api/build.gradle
+++ b/servicetalk-grpc-api/build.gradle
@@ -41,6 +41,4 @@ dependencies {
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
-  testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
 }
diff --git a/servicetalk-grpc-health/build.gradle b/servicetalk-grpc-health/build.gradle
index 79e9686103..c1bb88de3e 100644
--- a/servicetalk-grpc-health/build.gradle
+++ b/servicetalk-grpc-health/build.gradle
@@ -31,7 +31,6 @@ dependencies {
   implementation project(":servicetalk-grpc-protobuf")
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation project(":servicetalk-concurrent-api-test")
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation "org.junit.jupiter:junit-jupiter-api"
diff --git a/servicetalk-grpc-internal/build.gradle b/servicetalk-grpc-internal/build.gradle
index f801a33796..21235d484b 100644
--- a/servicetalk-grpc-internal/build.gradle
+++ b/servicetalk-grpc-internal/build.gradle
@@ -26,5 +26,4 @@ dependencies {
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
-  testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
 }
diff --git a/servicetalk-grpc-netty/build.gradle b/servicetalk-grpc-netty/build.gradle
index ddb7ba82ae..a589a05301 100644
--- a/servicetalk-grpc-netty/build.gradle
+++ b/servicetalk-grpc-netty/build.gradle
@@ -23,6 +23,19 @@ buildscript {
 apply plugin: "io.servicetalk.servicetalk-gradle-plugin-internal-library"
 apply plugin: "com.google.protobuf"
 
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testImplementation
+        onUnusedDependencies {
+          exclude(":servicetalk-http-utils")
+        }
+      }
+    }
+  }
+}
+
 dependencies {
   api project(":servicetalk-grpc-api")
   api project(":servicetalk-grpc-utils")
@@ -48,7 +61,6 @@ dependencies {
   testImplementation testFixtures(project(":servicetalk-http-netty"))
   testImplementation project(":servicetalk-concurrent-api-internal")
   testImplementation project(":servicetalk-concurrent-test-internal")
-  testImplementation project(":servicetalk-encoding-api-internal")
   testImplementation project(":servicetalk-encoding-netty")
   testImplementation project(":servicetalk-grpc-protobuf")
   testImplementation project(":servicetalk-http-utils")
@@ -56,16 +68,13 @@ dependencies {
   testImplementation project(":servicetalk-grpc-protoc")
   testImplementation project(":servicetalk-router-utils-internal")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-utils-internal")
   testImplementation project(":servicetalk-transport-netty")
   testImplementation project(":servicetalk-serializer-utils")
-  testImplementation "io.grpc:grpc-core"
   testImplementation("io.grpc:grpc-netty") {
     exclude group: "io.netty"
   }
   testImplementation "io.grpc:grpc-protobuf"
   testImplementation "io.grpc:grpc-stub"
-  testImplementation "jakarta.annotation:jakarta.annotation-api:$javaxAnnotationsApiVersion"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
diff --git a/servicetalk-grpc-protobuf/build.gradle b/servicetalk-grpc-protobuf/build.gradle
index 0bd8a623b8..216f8e8ef5 100644
--- a/servicetalk-grpc-protobuf/build.gradle
+++ b/servicetalk-grpc-protobuf/build.gradle
@@ -42,7 +42,6 @@ dependencies {
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
 }
 
 protobuf {
diff --git a/servicetalk-grpc-protoc/build.gradle b/servicetalk-grpc-protoc/build.gradle
index 2d3d3726eb..60d02b3309 100644
--- a/servicetalk-grpc-protoc/build.gradle
+++ b/servicetalk-grpc-protoc/build.gradle
@@ -32,9 +32,10 @@ dependencies {
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation project(":servicetalk-grpc-api")
   testImplementation project(":servicetalk-grpc-protobuf")
-  testImplementation "com.squareup:javapoet:$javaPoetVersion"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
+
+  testRuntimeOnly "com.squareup:javapoet:$javaPoetVersion"
 }
 
 jar {
diff --git a/servicetalk-grpc-utils/build.gradle b/servicetalk-grpc-utils/build.gradle
index 729ea77f51..67b6885dd1 100644
--- a/servicetalk-grpc-utils/build.gradle
+++ b/servicetalk-grpc-utils/build.gradle
@@ -29,5 +29,4 @@ dependencies {
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
-  testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
 }
diff --git a/servicetalk-http-api/build.gradle b/servicetalk-http-api/build.gradle
index d988f2459b..d2e600ef03 100644
--- a/servicetalk-http-api/build.gradle
+++ b/servicetalk-http-api/build.gradle
@@ -54,7 +54,6 @@ dependencies {
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
 
   testFixturesImplementation platform("org.junit:junit-bom:$junit5Version")
-  testFixturesImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testFixturesImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testFixturesImplementation project(":servicetalk-buffer-netty")
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
diff --git a/servicetalk-http-netty/build.gradle b/servicetalk-http-netty/build.gradle
index 856c4c99f3..7941b5a345 100644
--- a/servicetalk-http-netty/build.gradle
+++ b/servicetalk-http-netty/build.gradle
@@ -16,6 +16,19 @@
 
 apply plugin: "io.servicetalk.servicetalk-gradle-plugin-internal-library"
 
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testImplementation
+        onUnusedDependencies {
+          exclude("io.netty.incubator:netty-incubator-transport-native-io_uring")
+        }
+      }
+    }
+  }
+}
+
 dependencies {
   api project(":servicetalk-concurrent-api")
   api project(":servicetalk-logging-api")
@@ -59,8 +72,6 @@ dependencies {
   testImplementation project(":servicetalk-encoding-netty")
   testImplementation project(":servicetalk-test-resources")
   testImplementation project(":servicetalk-utils-internal")
-  testImplementation project(":servicetalk-oio-api-internal")
-  testImplementation "io.netty:netty-transport-native-unix-common"
   testImplementation "io.netty.incubator:netty-incubator-transport-native-io_uring:$nettyIoUringVersion"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
diff --git a/servicetalk-http-router-jersey/build.gradle b/servicetalk-http-router-jersey/build.gradle
index fecd9372eb..b9f57cf260 100644
--- a/servicetalk-http-router-jersey/build.gradle
+++ b/servicetalk-http-router-jersey/build.gradle
@@ -16,6 +16,19 @@
 
 apply plugin: "io.servicetalk.servicetalk-gradle-plugin-internal-library"
 
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testFixturesImplementation
+        onUnusedDependencies {
+          exclude("org.junit.platform:junit-platform-suite")
+        }
+      }
+    }
+  }
+}
+
 def actualJerseyVersion = "${jerseyVersion}"
 def actualJavaxActivationVersion = "${javaxActivationVersion}"
 def actualJavaxJaxbApiVersion = "${javaxJaxbApiVersion}"
@@ -60,20 +73,20 @@ dependencies {
   testFixturesImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testFixturesImplementation project(":servicetalk-data-jackson")
   testFixturesImplementation project(":servicetalk-http-netty")
-  testFixturesImplementation project(":servicetalk-http-utils")
   testFixturesImplementation project(":servicetalk-http-router-predicate")
   testFixturesImplementation project(":servicetalk-router-utils-internal")
   testFixturesImplementation project(":servicetalk-test-resources")
-  testFixturesImplementation project(":servicetalk-transport-netty")
   testFixturesImplementation project(":servicetalk-transport-netty-internal")
+  testFixturesImplementation "org.glassfish.jersey.core:jersey-server"
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-params"
   testFixturesImplementation "org.junit.platform:junit-platform-suite:$junitPlatformVersion"
   testFixturesImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
-  testFixturesImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testFixturesImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testFixturesImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testFixturesImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
+
+  testFixturesRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testFixturesRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
diff --git a/servicetalk-http-router-jersey3-jakarta10/build.gradle b/servicetalk-http-router-jersey3-jakarta10/build.gradle
index 193d8d55a0..7831657c89 100644
--- a/servicetalk-http-router-jersey3-jakarta10/build.gradle
+++ b/servicetalk-http-router-jersey3-jakarta10/build.gradle
@@ -78,6 +78,19 @@ afterEvaluate {
   }
 }
 
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testFixturesImplementation
+        onUnusedDependencies {
+          exclude("org.junit.platform:junit-platform-suite")
+        }
+      }
+    }
+  }
+}
+
 def actualJerseyVersion = "${jersey3VersionEE10}"
 def actualJavaxActivationVersion = "${javaxActivationVersionEE10}"
 def actualJavaxJaxbApiVersion = "${javaxJaxbApiVersionEE10}"
@@ -122,20 +135,20 @@ dependencies {
   testFixturesImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testFixturesImplementation project(":servicetalk-data-jackson")
   testFixturesImplementation project(":servicetalk-http-netty")
-  testFixturesImplementation project(":servicetalk-http-utils")
   testFixturesImplementation project(":servicetalk-http-router-predicate")
   testFixturesImplementation project(":servicetalk-router-utils-internal")
   testFixturesImplementation project(":servicetalk-test-resources")
-  testFixturesImplementation project(":servicetalk-transport-netty")
   testFixturesImplementation project(":servicetalk-transport-netty-internal")
+  testFixturesImplementation "org.glassfish.jersey.core:jersey-server"
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-params"
   testFixturesImplementation "org.junit.platform:junit-platform-suite:$junitPlatformVersion"
   testFixturesImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
-  testFixturesImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testFixturesImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testFixturesImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testFixturesImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
+
+  testFixturesRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testFixturesRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
diff --git a/servicetalk-http-router-jersey3-jakarta9/build.gradle b/servicetalk-http-router-jersey3-jakarta9/build.gradle
index 30c1ff3b00..bacbd497df 100644
--- a/servicetalk-http-router-jersey3-jakarta9/build.gradle
+++ b/servicetalk-http-router-jersey3-jakarta9/build.gradle
@@ -78,6 +78,19 @@ afterEvaluate {
   }
 }
 
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testFixturesImplementation
+        onUnusedDependencies {
+          exclude("org.junit.platform:junit-platform-suite")
+        }
+      }
+    }
+  }
+}
+
 def actualJerseyVersion = "${jersey3VersionEE9}"
 def actualJavaxActivationVersion = "${javaxActivationVersionEE9}"
 def actualJavaxJaxbApiVersion = "${javaxJaxbApiVersionEE9}"
@@ -122,20 +135,20 @@ dependencies {
   testFixturesImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testFixturesImplementation project(":servicetalk-data-jackson")
   testFixturesImplementation project(":servicetalk-http-netty")
-  testFixturesImplementation project(":servicetalk-http-utils")
   testFixturesImplementation project(":servicetalk-http-router-predicate")
   testFixturesImplementation project(":servicetalk-router-utils-internal")
   testFixturesImplementation project(":servicetalk-test-resources")
-  testFixturesImplementation project(":servicetalk-transport-netty")
   testFixturesImplementation project(":servicetalk-transport-netty-internal")
+  testFixturesImplementation "org.glassfish.jersey.core:jersey-server"
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-params"
   testFixturesImplementation "org.junit.platform:junit-platform-suite:$junitPlatformVersion"
   testFixturesImplementation "net.javacrumbs.json-unit:json-unit:$jsonUnitVersion"
-  testFixturesImplementation "org.glassfish.jersey.inject:jersey-hk2"
-  testFixturesImplementation "org.glassfish.jersey.media:jersey-media-sse"
   testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testFixturesImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testFixturesImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
+
+  testFixturesRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
+  testFixturesRuntimeOnly "org.glassfish.jersey.media:jersey-media-sse"
 }
diff --git a/servicetalk-http-router-predicate/build.gradle b/servicetalk-http-router-predicate/build.gradle
index cb6de1b803..9fc0647092 100644
--- a/servicetalk-http-router-predicate/build.gradle
+++ b/servicetalk-http-router-predicate/build.gradle
@@ -26,7 +26,6 @@ dependencies {
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation testFixtures(project(":servicetalk-http-api"))
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
-  testImplementation project(":servicetalk-concurrent-internal")
   testImplementation project(":servicetalk-buffer-netty")
   testImplementation project(":servicetalk-http-netty")
   testImplementation project(":servicetalk-transport-netty")
diff --git a/servicetalk-http-security-jersey/build.gradle b/servicetalk-http-security-jersey/build.gradle
index 2ded3e0abb..fb74698542 100644
--- a/servicetalk-http-security-jersey/build.gradle
+++ b/servicetalk-http-security-jersey/build.gradle
@@ -29,9 +29,7 @@ dependencies {
   implementation "org.glassfish.jersey.core:jersey-common"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
-  testImplementation project(":servicetalk-data-jackson-jersey")
   testImplementation project(":servicetalk-http-netty")
   testImplementation project(":servicetalk-http-router-jersey")
   testImplementation project(":servicetalk-http-utils")
@@ -39,9 +37,13 @@ dependencies {
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "net.javacrumbs.json-unit:json-unit-fluent:$jsonUnitVersion"
   testImplementation "org.glassfish.jersey.core:jersey-server"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
+  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
+  testRuntimeOnly project(":servicetalk-data-jackson-jersey")
   testRuntimeOnly project(":servicetalk-test-resources")
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
 }
diff --git a/servicetalk-http-security-jersey3-jakarta10/build.gradle b/servicetalk-http-security-jersey3-jakarta10/build.gradle
index c2f05a029f..03cc414f20 100644
--- a/servicetalk-http-security-jersey3-jakarta10/build.gradle
+++ b/servicetalk-http-security-jersey3-jakarta10/build.gradle
@@ -90,9 +90,7 @@ dependencies {
   implementation "org.glassfish.jersey.core:jersey-common"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
-  testImplementation project(":servicetalk-data-jackson-jersey3-jakarta10")
   testImplementation project(":servicetalk-http-netty")
   testImplementation project(":servicetalk-http-router-jersey3-jakarta10")
   testImplementation project(":servicetalk-http-utils")
@@ -100,10 +98,13 @@ dependencies {
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "net.javacrumbs.json-unit:json-unit-fluent:$jsonUnitVersion"
   testImplementation "org.glassfish.jersey.core:jersey-server"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
 
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
+  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
+  testRuntimeOnly project(":servicetalk-data-jackson-jersey3-jakarta10")
   testRuntimeOnly project(":servicetalk-test-resources")
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
 }
diff --git a/servicetalk-http-security-jersey3-jakarta9/build.gradle b/servicetalk-http-security-jersey3-jakarta9/build.gradle
index ed37ca2ba0..6c55a630ee 100644
--- a/servicetalk-http-security-jersey3-jakarta9/build.gradle
+++ b/servicetalk-http-security-jersey3-jakarta9/build.gradle
@@ -90,9 +90,7 @@ dependencies {
   implementation "org.glassfish.jersey.core:jersey-common"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
-  testImplementation project(":servicetalk-data-jackson-jersey3-jakarta9")
   testImplementation project(":servicetalk-http-netty")
   testImplementation project(":servicetalk-http-router-jersey3-jakarta9")
   testImplementation project(":servicetalk-http-utils")
@@ -100,9 +98,13 @@ dependencies {
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "net.javacrumbs.json-unit:json-unit-fluent:$jsonUnitVersion"
   testImplementation "org.glassfish.jersey.core:jersey-server"
-  testImplementation "org.glassfish.jersey.inject:jersey-hk2"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
+  // BaseJerseyRouterTestSuite assumes JSON serialization is supported.
+  testRuntimeOnly project(":servicetalk-data-jackson-jersey3-jakarta9")
   testRuntimeOnly project(":servicetalk-test-resources")
+  testRuntimeOnly "org.glassfish.jersey.inject:jersey-hk2"
 }
diff --git a/servicetalk-http-utils/build.gradle b/servicetalk-http-utils/build.gradle
index 39d51692b4..410fd65393 100644
--- a/servicetalk-http-utils/build.gradle
+++ b/servicetalk-http-utils/build.gradle
@@ -37,7 +37,6 @@ dependencies {
   testImplementation project(":servicetalk-buffer-netty")
   testImplementation project(":servicetalk-concurrent-api-test")
   testImplementation project(":servicetalk-transport-netty")
-  testImplementation project(":servicetalk-transport-netty-internal")
   testImplementation project(":servicetalk-concurrent-test-internal")
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
diff --git a/servicetalk-log4j2-mdc-utils/build.gradle b/servicetalk-log4j2-mdc-utils/build.gradle
index a3155f9404..4ca4e86e24 100644
--- a/servicetalk-log4j2-mdc-utils/build.gradle
+++ b/servicetalk-log4j2-mdc-utils/build.gradle
@@ -29,7 +29,6 @@ dependencies {
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.slf4j:slf4j-api:$slf4jVersion"
-  testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
 
   testFixturesImplementation "org.apache.logging.log4j:log4j-core"
   testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
diff --git a/servicetalk-opentelemetry-asynccontext/build.gradle b/servicetalk-opentelemetry-asynccontext/build.gradle
index cfcc51e0de..d655298dba 100755
--- a/servicetalk-opentelemetry-asynccontext/build.gradle
+++ b/servicetalk-opentelemetry-asynccontext/build.gradle
@@ -27,5 +27,4 @@ dependencies {
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
-  testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
 }
diff --git a/servicetalk-opentelemetry-http/build.gradle b/servicetalk-opentelemetry-http/build.gradle
index 11bfeb06a3..06f011e350 100755
--- a/servicetalk-opentelemetry-http/build.gradle
+++ b/servicetalk-opentelemetry-http/build.gradle
@@ -30,7 +30,6 @@ dependencies {
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-log4j2-mdc-utils"))
-  testImplementation project(":servicetalk-opentelemetry-asynccontext")
   testImplementation project(":servicetalk-data-jackson")
   testImplementation project(":servicetalk-http-netty")
   testImplementation project(":servicetalk-test-resources")
@@ -42,6 +41,7 @@ dependencies {
   testImplementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testRuntimeOnly enforcedPlatform("org.apache.logging.log4j:log4j-bom:$log4jVersion")
+  testRuntimeOnly project(":servicetalk-opentelemetry-asynccontext")
   testRuntimeOnly "io.opentelemetry.instrumentation:opentelemetry-log4j-context-data-2.17-autoconfigure"
   testRuntimeOnly "org.apache.logging.log4j:log4j-slf4j-impl"
 }
diff --git a/servicetalk-opentracing-asynccontext/build.gradle b/servicetalk-opentracing-asynccontext/build.gradle
index 09c8d70602..a88745b82d 100644
--- a/servicetalk-opentracing-asynccontext/build.gradle
+++ b/servicetalk-opentracing-asynccontext/build.gradle
@@ -25,8 +25,6 @@ dependencies {
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
-  testImplementation "org.slf4j:slf4j-api:$slf4jVersion"
-  testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
 }
diff --git a/servicetalk-opentracing-http/build.gradle b/servicetalk-opentracing-http/build.gradle
index 26553ccf8c..60ba1d4ed4 100644
--- a/servicetalk-opentracing-http/build.gradle
+++ b/servicetalk-opentracing-http/build.gradle
@@ -29,22 +29,19 @@ dependencies {
 
   testImplementation enforcedPlatform("org.apache.logging.log4j:log4j-bom:$log4jVersion")
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testImplementation testFixtures(project(":servicetalk-log4j2-mdc-utils"))
   testImplementation testFixtures(project(":servicetalk-http-netty"))
-  testImplementation project(":servicetalk-buffer-netty")
   testImplementation project(":servicetalk-data-jackson")
   testImplementation project(":servicetalk-http-netty")
   testImplementation project(":servicetalk-opentracing-asynccontext")
   testImplementation project(":servicetalk-test-resources")
-  testImplementation project(":servicetalk-opentracing-log4j2")
-  testImplementation "org.apache.logging.log4j:log4j-core"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
 
+  testRuntimeOnly project(":servicetalk-opentracing-log4j2")
   testRuntimeOnly "org.apache.logging.log4j:log4j-slf4j-impl"
 }
diff --git a/servicetalk-opentracing-log4j2/build.gradle b/servicetalk-opentracing-log4j2/build.gradle
index e5fc3659ff..64d6b4dbc1 100644
--- a/servicetalk-opentracing-log4j2/build.gradle
+++ b/servicetalk-opentracing-log4j2/build.gradle
@@ -32,6 +32,4 @@ dependencies {
   testImplementation testFixtures(project(":servicetalk-log4j2-mdc-utils"))
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.apache.logging.log4j:log4j-core"
-  testImplementation "org.apache.logging.log4j:log4j-slf4j-impl"
 }
diff --git a/servicetalk-opentracing-zipkin-publisher/build.gradle b/servicetalk-opentracing-zipkin-publisher/build.gradle
index edd68903d3..be53c5a561 100644
--- a/servicetalk-opentracing-zipkin-publisher/build.gradle
+++ b/servicetalk-opentracing-zipkin-publisher/build.gradle
@@ -36,17 +36,14 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
-  testImplementation project(":servicetalk-buffer-netty")
   testImplementation project(":servicetalk-opentracing-asynccontext")
   testImplementation project(":servicetalk-opentracing-inmemory")
   testImplementation project(":servicetalk-test-resources")
   testImplementation project(":servicetalk-http-netty")
-  testImplementation project(":servicetalk-utils-internal")
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
diff --git a/servicetalk-serializer-utils/build.gradle b/servicetalk-serializer-utils/build.gradle
index 9d2177dc67..fb199ca469 100644
--- a/servicetalk-serializer-utils/build.gradle
+++ b/servicetalk-serializer-utils/build.gradle
@@ -26,13 +26,11 @@ dependencies {
 
   testImplementation enforcedPlatform("com.google.protobuf:protobuf-bom:$protobufVersion")
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
-  testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
-  testImplementation project(":servicetalk-concurrent-test-internal")
   testImplementation project(":servicetalk-buffer-netty")
   testImplementation "com.google.protobuf:protobuf-java"
   testImplementation "org.junit.jupiter:junit-jupiter-api"
   testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
+
+  testRuntimeOnly testFixtures(project(":servicetalk-concurrent-internal"))
 }
diff --git a/servicetalk-tcp-netty-internal/build.gradle b/servicetalk-tcp-netty-internal/build.gradle
index 567a2005bd..08b2adc4e2 100644
--- a/servicetalk-tcp-netty-internal/build.gradle
+++ b/servicetalk-tcp-netty-internal/build.gradle
@@ -16,7 +16,19 @@
 
 apply plugin: "io.servicetalk.servicetalk-gradle-plugin-internal-library"
 
-ext.isNettySnapshot = "$nettyVersion".endsWithAny("SNAPSHOT", "+")
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testFixturesImplementation
+        onUnusedDependencies {
+          exclude("io.netty:netty-transport-native-epoll")
+          exclude("io.netty:netty-transport-native-kqueue")
+        }
+      }
+    }
+  }
+}
 
 dependencies {
   api project(":servicetalk-client-api")
@@ -44,21 +56,12 @@ dependencies {
 
   testFixturesImplementation platform("io.netty:netty-bom:$nettyVersion")
   testFixturesImplementation platform("org.junit:junit-bom:$junit5Version")
-  testFixturesImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testFixturesImplementation testFixtures(project(":servicetalk-transport-netty-internal"))
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
   testFixturesImplementation "io.netty:netty-transport"
   testFixturesImplementation "io.netty:netty-transport-native-epoll"
-  testFixturesRuntimeOnly( group:"io.netty", name:"netty-transport-native-epoll", classifier:"linux-x86_64")
-  testFixturesRuntimeOnly( group:"io.netty", name:"netty-transport-native-epoll", classifier:"linux-aarch_64")
   testFixturesImplementation "io.netty:netty-transport-native-kqueue"
-  if (!project.ext.isNettySnapshot) {
-    // Netty doesn't publish snapshots for macos artifacts
-    testFixturesRuntimeOnly( group:"io.netty", name:"netty-transport-native-kqueue", classifier:"osx-x86_64")
-    testFixturesRuntimeOnly( group:"io.netty", name:"netty-transport-native-kqueue", classifier:"osx-aarch_64")
-  }
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
   testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
-  testFixturesImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testFixturesImplementation "org.slf4j:slf4j-api:$slf4jVersion"
 }
diff --git a/servicetalk-transport-api/build.gradle b/servicetalk-transport-api/build.gradle
index 352af4c1d8..c5c12df228 100644
--- a/servicetalk-transport-api/build.gradle
+++ b/servicetalk-transport-api/build.gradle
@@ -26,12 +26,10 @@ dependencies {
   implementation "org.slf4j:slf4j-api:$slf4jVersion"
 
   testImplementation enforcedPlatform("org.junit:junit-bom:$junit5Version")
-  testImplementation testFixtures(project(":servicetalk-concurrent-api"))
   testImplementation testFixtures(project(":servicetalk-concurrent-internal"))
   testImplementation project(":servicetalk-concurrent-test-internal")
   testImplementation project(":servicetalk-test-resources")
   testImplementation "org.junit.jupiter:junit-jupiter-api"
-  testImplementation "org.junit.jupiter:junit-jupiter-params"
   testImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testImplementation "org.mockito:mockito-junit-jupiter:$mockitoCoreVersion"
diff --git a/servicetalk-transport-netty-internal/build.gradle b/servicetalk-transport-netty-internal/build.gradle
index 805abeb056..2acd4f667a 100644
--- a/servicetalk-transport-netty-internal/build.gradle
+++ b/servicetalk-transport-netty-internal/build.gradle
@@ -18,6 +18,19 @@ apply plugin: "io.servicetalk.servicetalk-gradle-plugin-internal-library"
 
 ext.isNettySnapshot = "$nettyVersion".endsWithAny("SNAPSHOT", "+")
 
+afterEvaluate {
+  if (tasks.findByName("projectHealth")) {
+    dependencyAnalysis {
+      issues {
+        // False positives for testFixturesImplementation
+        onUnusedDependencies {
+          exclude("io.netty.incubator:netty-incubator-transport-native-io_uring")
+        }
+      }
+    }
+  }
+}
+
 dependencies {
   api platform("io.netty:netty-bom:$nettyVersion")
   api project(":servicetalk-buffer-netty")
@@ -70,7 +83,6 @@ dependencies {
   testFixturesImplementation "io.netty.incubator:netty-incubator-transport-native-io_uring:$nettyIoUringVersion"
   testFixturesImplementation "com.google.code.findbugs:jsr305:$jsr305Version"
   testFixturesImplementation "org.junit.jupiter:junit-jupiter-api"
-  testFixturesImplementation "org.hamcrest:hamcrest:$hamcrestVersion"
   testFixturesImplementation "org.mockito:mockito-core:$mockitoCoreVersion"
   testFixturesImplementation "org.slf4j:slf4j-api:$slf4jVersion"
 }