chore: PQC GAPIC POC

build-with-local-http-client.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+#
+# Copyright 2026 Google LLC
+#
+# 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
+#
+#      https://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.
+#
+
+set -e
+
+# Find the directory of this script (root of google-cloud-java)
+MONOREPO_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+PARENT_DIR="$(cd "${MONOREPO_DIR}/.." && pwd)"
+
+# Path to the google-http-java-client repository
+HTTP_CLIENT_DIR="${HTTP_CLIENT_DIR:-${PARENT_DIR}/google-http-java-client}"
+HTTP_CLIENT_BRANCH="${HTTP_CLIENT_BRANCH:-pqc-support-conscrypt}"
+
+
+HTTP_CLIENT_VERSION="${HTTP_CLIENT_VERSION:-2.1.2-SNAPSHOT}"
+
+echo "========================================================================="
+echo "Building and installing google-http-java-client snapshot..."
+echo "Using path: ${HTTP_CLIENT_DIR}"
+echo "========================================================================="
+
+if [ ! -d "${HTTP_CLIENT_DIR}" ]; then
+  echo "Error: google-http-java-client directory not found at: ${HTTP_CLIENT_DIR}"
+  echo "You can specify its location by setting the HTTP_CLIENT_DIR environment variable."
+  exit 1
+fi
+
+# Check if the snapshot jar is already built in the local maven repository
+M2_JAR_PATH="${HOME}/.m2/repository/com/google/http-client/google-http-client/${HTTP_CLIENT_VERSION}/google-http-client-${HTTP_CLIENT_VERSION}.jar"
+
+if [ -f "${M2_JAR_PATH}" ] && [ "${FORCE_REBUILD}" != "true" ]; then
+  echo "Found existing google-http-client snapshot at ${M2_JAR_PATH}."
+  echo "Skipping build. (To force rebuild, run with FORCE_REBUILD=true)"
+else
+  # Store current directory and build http client
+  pushd "${HTTP_CLIENT_DIR}"
+    echo "Switching to branch ${HTTP_CLIENT_BRANCH} in google-http-java-client..."
+    git checkout "${HTTP_CLIENT_BRANCH}"
+
+    echo "Running maven install..."
+    mvn clean install -pl google-http-client -am -Dmaven.test.skip=true -Dmaven.javadoc.skip=true -Dclirr.skip=true
+  popd
+fi
+
+echo "========================================================================="
+echo "Building and verifying gapic-showcase with PQC in google-cloud-java..."
+echo "========================================================================="
+
+# Run the showcase tests
+mvn test -pl java-showcase/gapic-showcase -Dtest=ITPqc

java-showcase/gapic-showcase/pom.xml

@@ -136,6 +136,12 @@
     </dependency>
 
     <!-- Test dependencies -->
+    <dependency>
+      <groupId>org.conscrypt</groupId>
+      <artifactId>conscrypt-openjdk-uber</artifactId>
+      <version>2.6-alpha5</version>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-engine</artifactId>