chore: add s3ec-java (transition & improved) test server

.gitmodules

@@ -12,6 +12,14 @@
 	path = test-server/php-v3-server/local-php-sdk
 	url = git@github.com:aws/private-aws-sdk-php-staging.git
 	branch = s3ec/improved
+[submodule "test-server/java-v3-transition-server/s3ec-staging"]
+	path = test-server/java-v3-transition-server/s3ec-staging
+	url = git@github.com:aws/private-amazon-s3-encryption-client-java-staging.git
+	branch = s3ec/transitional
+[submodule "test-server/java-v4-server/s3ec-staging"]
+	path = test-server/java-v4-server/s3ec-staging
+	url = git@github.com:aws/private-amazon-s3-encryption-client-java-staging.git
+	branch = s3ec/improved
 [submodule "test-server/specification"]
 	path = test-server/specification
 	url = git@github.com:awslabs/private-aws-encryption-sdk-specification-staging.git

test-server/java-tests/src/it/java/software/amazon/encryption/s3/TestUtils.java

@@ -124,13 +124,13 @@ public class TestUtils {
         servers.put(RUBY_V3, new LanguageServerTarget(RUBY_V3, "8092"));
         servers.put(PHP_V3, new LanguageServerTarget(PHP_V3, "8093"));
         // TODO: Create and add transition servers
-        // servers.put(JAVA_V3_TRANSITION, new LanguageServerTarget(JAVA_V3_TRANSITION, "8094"));
+        servers.put(JAVA_V3_TRANSITION, new LanguageServerTarget(JAVA_V3_TRANSITION, "8094"));
         // servers.put(GO_V3_TRANSITION, new LanguageServerTarget(GO_V3_TRANSITION, "8095"));
         // servers.put(NET_V2_TRANSITION, new LanguageServerTarget(NET_V2_TRANSITION, "8096"));
         servers.put(CPP_V2_TRANSITION, new LanguageServerTarget(CPP_V2_TRANSITION, "8097"));
         // servers.put(RUBY_V2_TRANSITION, new LanguageServerTarget(RUBY_V2_TRANSITION, "8098"));
         // servers.put(PHP_V2_TRANSITION, new LanguageServerTarget(PHP_V2_TRANSITION, "8099"));
-
+        servers.put(JAVA_V4, new LanguageServerTarget(JAVA_V4, "8090"));
         serverMap = filterServers(servers);
     }
 

test-server/java-v3-transition-server/Makefile

@@ -0,0 +1,30 @@
+# Makefile for S3 Encryption Client Testing
+
+.PHONY: start-server stop-server wait-for-server build-s3ec
+
+PID_FILE := server.pid
+PORT := 8094
+
+build-s3ec:
+	@echo "Building S3EC from source..."
+	cd s3ec-staging && mvn --batch-mode -no-transfer-progress clean compile
+	cd s3ec-staging && mvn -B -ntp install -DskipTests
+	@echo "S3EC build completed."
+
+start-server: build-s3ec
+	@echo "Starting Java V3 server..."
+	AWS_ACCESS_KEY_ID="$$AWS_ACCESS_KEY_ID" \
+	AWS_SECRET_ACCESS_KEY="$$AWS_SECRET_ACCESS_KEY" \
+	AWS_SESSION_TOKEN="$$AWS_SESSION_TOKEN" \
+	AWS_REGION="us-west-2" \
+	./gradlew --build-cache --parallel run & echo $$! > $(PID_FILE)
+	@echo "Java V3 server starting..."
+
+stop-server:
+	@if [ -f $(PID_FILE) ]; then \
+		kill $$(cat $(PID_FILE)) 2>/dev/null || true; \
+		rm $(PID_FILE); \
+	fi
+
+wait-for-server:
+	$(MAKE) -C .. wait-for-port PORT=$(PORT)

test-server/java-v3-transition-server/README.md

@@ -0,0 +1,23 @@
+# S3EC Java V3 Test Server
+
+This is the Java implementation of the S3ECTestServer framework for S3EC Java V3. It provides a server implementation for testing Java S3 Encryption Client V3 functionality.
+
+## Overview
+
+The S3ECJavaTestServer implements the S3ECTestServer service defined in the shared Smithy model. It provides endpoints for:
+
+- Creating S3 Encryption Clients
+- Putting objects with encryption
+- Getting and decrypting objects
+
+## Usage
+
+To run the server:
+
+```console
+gradle run
+```
+
+This will start the server running on port `8094`.
+
+The server is used as part of the testing framework to verify cross-language compatibility of the S3 Encryption Client implementations.

test-server/java-v3-transition-server/build.gradle.kts

@@ -0,0 +1,55 @@
+plugins {
+    `java-library`
+    id("software.amazon.smithy.gradle.smithy-base")
+    application
+}
+
+dependencies {
+    val smithyJavaVersion: String by project
+
+    smithyBuild("software.amazon.smithy.java:plugins:$smithyJavaVersion")
+
+    implementation("software.amazon.smithy:smithy-rules-engine:1.59.0")
+    implementation("software.amazon.smithy.java:server-netty:$smithyJavaVersion")
+    implementation("software.amazon.smithy.java:aws-server-restjson:$smithyJavaVersion")
+
+    // S3EC from local Maven repository (installed by mvn install)
+    implementation("software.amazon.encryption.s3:amazon-s3-encryption-client-java:3.4.0-TRANSITION")
+}
+
+// Use that application plugin to start the service via the `run` task.
+application {
+    mainClass = "software.amazon.encryption.s3.S3ECJavaTestServer"
+}
+
+// Add generated Java files to the main sourceSet
+afterEvaluate {
+    val serverPath = smithy.getPluginProjectionPath(smithy.sourceProjection.get(), "java-server-codegen")
+    sourceSets {
+        main {
+            java {
+                srcDir(serverPath)
+            }
+        }
+    }
+}
+
+tasks {
+    compileJava {
+        dependsOn(smithyBuild)
+    }
+}
+
+// Helps Intellij IDE's discover smithy models
+sourceSets {
+    main {
+        java {
+            srcDir("../model")
+        }
+    }
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}

test-server/java-v3-transition-server/gradle.properties

@@ -0,0 +1,11 @@
+# Smithy versions
+smithyJavaVersion=[0,1]
+smithyGradleVersion=1.1.0
+smithyVersion=[1,2]
+
+# Performance optimization settings
+org.gradle.parallel=true
+org.gradle.caching=true
+org.gradle.daemon=true
+org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError
+org.gradle.workers.max=4

test-server/java-v3-transition-server/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists