| #!/bin/sh |
| |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You 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 |
| # |
| # http://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. |
| # |
| |
| warn () { |
| echo "$*" |
| } >&2 |
| |
| die () { |
| echo |
| echo "$*" |
| echo |
| exit 1 |
| } >&2 |
| |
| # Determine the Java command to use to start the JVM. |
| if [ -n "${JAVA_HOME}" ] ; then |
| if [ -x "${JAVA_HOME}/jre/sh/java" ] ; then |
| # IBM's JDK on AIX uses strange locations for the executables |
| export JAVACMD=${JAVA_HOME}/jre/sh/java |
| else |
| export JAVACMD=${JAVA_HOME}/bin/java |
| fi |
| if [ ! -x "${JAVACMD}" ] ; then |
| die "ERROR: JAVA_HOME is set to an invalid directory: ${JAVA_HOME} |
| Please set the JAVA_HOME variable in your environment to match the |
| location of your Java installation." |
| fi |
| else |
| export JAVACMD=java |
| which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. |
| Please set the JAVA_HOME variable in your environment to match the |
| location of your Java installation." |
| fi |
| |
| |
| # check java version |
| JAVA_VER=$("$JAVACMD" -version 2>&1 \ |
| | head -1 \ |
| | cut -d'"' -f2 \ |
| | sed 's/^1\.//' \ |
| | cut -d'.' -f1 |
| ) |
| |
| if [ "${JAVA_VER}" -lt "11" ]; then |
| echo "java version should be equal or higher than 11, your current version is $("$JAVACMD" -version 2>&1 | grep -i version)" >&2 |
| fi |