java CDK: clean up dependencies, refactor modules (#34745)

build.gradle

@@ -180,6 +180,7 @@ subprojects { subproj ->
     }
 
     apply plugin: 'java'
+    apply plugin: 'java-test-fixtures'
     apply plugin: 'jacoco'
     apply plugin: 'com.github.spotbugs'
 
@@ -194,6 +195,10 @@ subprojects { subproj ->
             //deprecation and removal are removed from error since we should still test those constructs.
             options.compilerArgs += ["-Werror", "-Xlint:all,-serial,-processing,-rawtypes,-unchecked,-deprecation,-removal"]
         }
+        compileTestFixturesJava {
+            //rawtypes and unchecked are necessary for mockito
+            options.compilerArgs += ["-Werror", "-Xlint:all,-serial,-processing,-rawtypes,-unchecked"]
+        }
     }
 
     if (isConnectorProject(subproj)) {
@@ -324,45 +329,27 @@ subprojects { subproj ->
         finalizedBy jacocoTestReportTask
     }
 
-    // TODO: These should be added to the CDK or to the individual projects that need them:
-
     dependencies {
-        implementation(platform("com.fasterxml.jackson:jackson-bom:2.13.0"))
-        implementation(platform("org.glassfish.jersey:jersey-bom:2.31"))
-
-        // version is handled by "com.fasterxml.jackson:jackson-bom:2.10.4", so we do not explicitly set it here.
-        implementation libs.bundles.jackson
-        implementation libs.guava
-        implementation libs.commons.io
-        implementation libs.bundles.apache
-        implementation libs.slf4j.api
-
-        // SLF4J as a facade over Log4j2 required dependencies
-        implementation libs.bundles.log4j
-        implementation libs.appender.log4j2
-
-        // Bridges from other logging implementations to SLF4J
-        implementation libs.bundles.slf4j
-
         // Lombok dependencies
         compileOnly libs.lombok
         annotationProcessor libs.lombok
-
         testCompileOnly libs.lombok
         testAnnotationProcessor libs.lombok
+        testFixturesCompileOnly libs.lombok
+        testFixturesAnnotationProcessor libs.lombok
 
+        // JUnit dependencies
         testRuntimeOnly libs.junit.jupiter.engine
         testImplementation libs.bundles.junit
         testImplementation libs.assertj.core
-
         testImplementation libs.junit.pioneer
+        testFixturesImplementation libs.bundles.junit
+        testFixturesImplementation libs.assertj.core
+        testFixturesImplementation libs.junit.pioneer
 
         // adds owasp plugin
         spotbugsPlugins libs.findsecbugs.plugin
         implementation libs.spotbugs.annotations
-
-        // Airbyte dependencies.
-        implementation libs.airbyte.protocol
     }
 
     tasks.withType(SpotBugsTask).configureEach {