# 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.
# ----------------------------------------------------------------------------- # Set JAVA_HOME or JRE_HOME if not already set, ensure any provided settings # are valid and consistent with the selected start-up options. # -----------------------------------------------------------------------------
# Make sure prerequisite environment variables are set if [ -z "$JAVA_HOME" ] && [ -z "$JRE_HOME" ]; then if $darwin; then # Bugzilla 54390 if [ -x '/usr/libexec/java_home' ] ; then export JAVA_HOME=`/usr/libexec/java_home` # Bugzilla 37284 (reviewed). elif [ -d "/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home" ]; then export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home" fi else
JAVA_PATH=`which java 2>/dev/null` if [ "x$JAVA_PATH" != "x" ]; then
JAVA_PATH=`dirname "$JAVA_PATH" 2>/dev/null`
JRE_HOME=`dirname "$JAVA_PATH" 2>/dev/null` fi if [ "x$JRE_HOME" = "x" ]; then # XXX: Should we try other locations? if [ -x /usr/bin/java ]; then
JRE_HOME=/usr fi fi fi if [ -z "$JAVA_HOME" ] && [ -z "$JRE_HOME" ]; then echo"Neither the JAVA_HOME nor the JRE_HOME environment variable is defined" echo"At least one of these environment variable is needed to run this program"
exit 1 fi fi if [ -z "$JAVA_HOME" ] && [ "$1" = "debug" ]; then echo"JAVA_HOME should point to a JDK in order to run in debug mode."
exit 1 fi
# If we're running under jdb, we need a full jdk. if [ "$1" = "debug" ] ; then if [ "$os400" = "true" ]; then if [ ! -x "$JAVA_HOME"/bin/java ] || [ ! -x "$JAVA_HOME"/bin/javac ]; then echo"The JAVA_HOME environment variable is not defined correctly" echo"JAVA_HOME=$JAVA_HOME" echo"This environment variable is needed to run this program" echo"NB: JAVA_HOME should point to a JDK not a JRE"
exit 1 fi else if [ ! -x "$JAVA_HOME"/bin/java ] || [ ! -x "$JAVA_HOME"/bin/jdb ] || [ ! -x "$JAVA_HOME"/bin/javac ]; then echo"The JAVA_HOME environment variable is not defined correctly" echo"JAVA_HOME=$JAVA_HOME" echo"This environment variable is needed to run this program" echo"NB: JAVA_HOME should point to a JDK not a JRE"
exit 1 fi fi fi
if [ -z "$JRE_HOME" ]; then # JAVA_HOME_MUST be set if [ ! -x "$JAVA_HOME"/bin/java ]; then echo"The JAVA_HOME environment variable is not defined correctly" echo"JAVA_HOME=$JAVA_HOME" echo"This environment variable is needed to run this program" echo"NB: JAVA_HOME should point to a JDK not a JRE"
exit 1 fi
JRE_HOME="$JAVA_HOME" else if [ ! -x "$JRE_HOME"/bin/java ]; then echo"The JRE_HOME environment variable is not defined correctly" echo"JRE_HOME=$JRE_HOME" echo"This environment variable is needed to run this program"
exit 1 fi fi
# Set standard commands for invoking Java, if not already set. if [ -z "$_RUNJAVA" ]; then
_RUNJAVA="$JRE_HOME"/bin/java fi if [ "$os400" != "true" ]; then if [ -z "$_RUNJDB" ]; then
_RUNJDB="$JAVA_HOME"/bin/jdb fi fi
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