Use echo+exit instead of die

spring-boot-cli/src/main/executablecontent/bin/spring

@@ -26,10 +26,10 @@ if [ -z "${JAVA_HOME}" ]; then
 		[ -z "$JAVA_HOME" -a -d "/System/Library/Frameworks/JavaVM.framework/Home" ] && export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Home"
 	else
 		javaExecutable="`which javac`"
-		[ -z "$javaExecutable" -o "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ] && die "JAVA_HOME not set and cannot find javac to deduce location, please set JAVA_HOME."
+		[ -z "$javaExecutable" -o "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ] && echo "JAVA_HOME not set and cannot find javac to deduce location, please set JAVA_HOME." && exit 1
 		# readlink(1) is not available as standard on Solaris 10.
 		readLink=`which readlink`
-		[ `expr "$readLink" : '\([^ ]*\)'` = "no" ] && die "JAVA_HOME not set and readlink not available, please set JAVA_HOME."
+		[ `expr "$readLink" : '\([^ ]*\)'` = "no" ] && echo "JAVA_HOME not set and readlink not available, please set JAVA_HOME." && exit 1
 		javaExecutable="`readlink -f \"$javaExecutable\"`"
 		javaHome="`dirname \"$javaExecutable\"`"
 		javaHome=`expr "$javaHome" : '\(.*\)/bin'`