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7 changes: 3 additions & 4 deletions ci/scripts/java_build.sh
Original file line number Diff line number Diff line change
Expand Up @@ -72,9 +72,6 @@ if [ $ARROW_JAVA_SKIP_GIT_PLUGIN ]; then
mvn="${mvn} -Dmaven.gitcommitid.skip=true"
fi

# Use `2 * ncores` threads
mvn="${mvn} -T 2C"

# https://github.com/apache/arrow/issues/41429
# TODO: We want to out-of-source build. This is a workaround. We copy
# all needed files to the build directory from the source directory
Expand All @@ -98,10 +95,12 @@ if [ "${ARROW_JAVA_JNI}" = "ON" ]; then
mvn="${mvn} -Darrow.cpp.build.dir=${java_jni_dist_dir} -Parrow-jni"
fi

${mvn} clean install
# Use `2 * ncores` threads
${mvn} -T 2C clean install

if [ "${BUILD_DOCS_JAVA}" == "ON" ]; then
# HTTP pooling is turned of to avoid download issues https://issues.apache.org/jira/browse/ARROW-11633
# GH-43378: Maven site plugins not compatible with multithreading
mkdir -p ${build_dir}/docs/java/reference
${mvn} -Dcheckstyle.skip=true -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false clean install site
rsync -a target/site/apidocs/ ${build_dir}/docs/java/reference
Expand Down