GH-35274: [Java][CI] Enable GCS on MacOS

ci/scripts/java_jni_macos_build.sh

@@ -46,6 +46,7 @@ export ARROW_ACERO
 export ARROW_DATASET
 : ${ARROW_GANDIVA:=ON}
 export ARROW_GANDIVA
+: ${ARROW_GCS:=ON}
 : ${ARROW_ORC:=ON}
 export ARROW_ORC
 : ${ARROW_PARQUET:=ON}
@@ -76,6 +77,7 @@ cmake \
   -DARROW_DEPENDENCY_USE_SHARED=OFF \
   -DARROW_GANDIVA=${ARROW_GANDIVA} \
   -DARROW_GANDIVA_STATIC_LIBSTDCPP=ON \
+  -DARROW_GCS=${ARROW_GCS} \
   -DARROW_JSON=${ARROW_DATASET} \
   -DARROW_ORC=${ARROW_ORC} \
   -DARROW_PARQUET=${ARROW_PARQUET} \
@@ -85,6 +87,7 @@ cmake \
   -DCMAKE_INSTALL_LIBDIR=lib \
   -DCMAKE_INSTALL_PREFIX=${install_dir} \
   -DCMAKE_UNITY_BUILD=${CMAKE_UNITY_BUILD} \
+  -Dgoogle_cloud_cpp_storage_SOURCE=BUNDLED \
   -DGTest_SOURCE=BUNDLED \
   -DPARQUET_BUILD_EXAMPLES=OFF \
   -DPARQUET_BUILD_EXECUTABLES=OFF \

cpp/cmake_modules/DefineOptions.cmake

@@ -333,7 +333,10 @@ takes precedence over ccache if a storage backend is configured" ON)
                 ARROW_WITH_UTF8PROC)
 
   define_option(ARROW_GCS
-                "Build Arrow with GCS support (requires the GCloud SDK for C++)" OFF)
+                "Build Arrow with GCS support (requires the GCloud SDK for C++)"
+                OFF
+                DEPENDS
+                ARROW_WITH_SNAPPY)
 
   define_option(ARROW_HDFS "Build the Arrow HDFS bridge" OFF)
 

dev/tasks/java-jars/github.yml

@@ -135,8 +135,10 @@ jobs:
           set -e
           # make brew Java available to CMake
           if [ "{{ arch }}" = "aarch_64" ]; then
+            export CURL_ROOT=$(brew --prefix curl)
             export JAVA_HOME=$(brew --prefix openjdk@11)/libexec/openjdk.jdk/Contents/Home
           fi
+          arrow/ci/scripts/install_gcs_testbench.sh default
           arrow/ci/scripts/java_jni_macos_build.sh \
             $GITHUB_WORKSPACE/arrow \
             $GITHUB_WORKSPACE/arrow/cpp-build \