关于jd-gui启动报This program requires Java 1.8+的错误

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最近,在Mac使用上JD-GUI启动时,报了如下的错误:

ERROR launching JD-GUI

No suitable Java version found on your system!
This program requires Java 1.8+
Make sure you install the required Java version.

解决方法:

在“访达”中,右击JD-GUI图标,点击“显示包内容”。

关于jd-gui启动报This


然后,打开“Contents/MacOS/universalJavaApplicationStub.sh”文件,使用以下内容替换,保存即可。

#!/bin/bash
##################################################################################
# #
# universalJavaApplicationStub #
# #
# A BASH based JavaApplicationStub for Java Apps on Mac OS X #
# that works with both Apples and Oracles plist format. #
# #
# Inspired by Ian Roberts stackoverflow answer #
# at http://stackoverflow.com/a/17546508/1128689 #
# #
# @author Tobias Fischer #
# @url https://github.com/tofi86/universalJavaApplicationStub #
# @date 2020-03-19 #
# @version 3.0.6 #
# #
##################################################################################
# #
# The MIT License (MIT) #
# #
# Copyright (c) 2014-2020 Tobias Fischer #
# #
# Permission is hereby granted, free of charge, to any person obtaining a copy #
# of this software and associated documentation files (the "Software"), to deal #
# in the Software without restriction, including without limitation the rights #
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell #
# copies of the Software, and to permit persons to whom the Software is #
# furnished to do so, subject to the following conditions: #
# #
# The above copyright notice and this permission notice shall be included in all #
# copies or substantial portions of the Software. #
# #
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, #
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE #
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER #
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, #
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE #
# SOFTWARE. #
# #
##################################################################################



# function stub_logger()
#
# A logger which logs to the macOS Console.app using the syslog command
#
# @param1 the log message
# @return void
################################################################################
function stub_logger()
syslog -s -k \\
Facility com.apple.console \\
Level Notice \\
Sender "$(basename "$0")" \\
Message "[$$][$CFBundleName:-$(basename "$0")] $1"




# set the directory abspath of the current
# shell script with symlinks being resolved
############################################

PRG=$0
while [ -h "$PRG" ]; do
ls=$(ls -ld "$PRG")
link=$(expr "$ls" : ^.*-> \\(.*\\)$ 2>/dev/null)
if expr "$link" : ^/ 2> /dev/null >/dev/null; then
PRG="$link"
else
PRG="$(dirname "$PRG")/$link"
fi
done
PROGDIR=$(dirname "$PRG")
stub_logger "[StubDir] $PROGDIR"



# set files and folders
############################################

# the absolute path of the app package
cd "$PROGDIR"/../../ || exit 11
AppPackageFolder=$(pwd)

# the base path of the app package
cd .. || exit 12
AppPackageRoot=$(pwd)

# set Apples Java folder
AppleJavaFolder="$AppPackageFolder"/Contents/Resources/Java

# set Apples Resources folder
AppleResourcesFolder="$AppPackageFolder"/Contents/Resources

# set Oracles Java folder
OracleJavaFolder="$AppPackageFolder"/Contents/Java

# set Oracles Resources folder
OracleResourcesFolder="$AppPackageFolder"/Contents/Resources

# set path to Info.plist in bundle
InfoPlistFile="$AppPackageFolder"/Contents/Info.plist

# set the default JVM Version to a null string
JVMVersion=""
JVMMaxVersion=""



# function plist_get()
#
# read a specific Plist key with PlistBuddy utility
#
# @param1 the Plist key with leading colon :
# @return the value as String or Array
################################################################################
plist_get()
/usr/libexec/PlistBuddy -c "print $1" "$InfoPlistFile" 2> /dev/null


# function plist_get_java()
#
# read a specific Plist key with PlistBuddy utility
# in the Java or JavaX dictionary (<dict>)
#
# @param1 the Plist :Java(X):Key with leading colon :
# @return the value as String or Array
################################################################################
plist_get_java()
plist_get $JavaKey:-":Java"$1




# read Info.plist and extract JVM options
############################################

# read the program name from CFBundleName
CFBundleName=$(plist_get :CFBundleName)

# read the icon file name
CFBundleIconFile=$(plist_get :CFBundleIconFile)


# check Info.plist for Apple style Java keys -> if key :Java is present, parse in apple mode
/usr/libexec/PlistBuddy -c "print :Java" "$InfoPlistFile" > /dev/null 2>&1
exitcode=$?
JavaKey=":Java"

# if no :Java key is present, check Info.plist for universalJavaApplication style JavaX keys -> if key :JavaX is present, parse in apple mode
if [ $exitcode -ne 0 ]; then
/usr/libexec/PlistBuddy -c "print :JavaX" "$InfoPlistFile" > /dev/null 2>&1
exitcode=$?
JavaKey=":JavaX"
fi


# read Info.plist file in Apple style if exit code returns 0 (true, :Java key is present)
if [ $exitcode -eq 0 ]; then
stub_logger "[PlistStyle] Apple"

# set Java and Resources folder
JavaFolder="$AppleJavaFolder"
ResourcesFolder="$AppleResourcesFolder"

APP_PACKAGE="$AppPackageFolder"
JAVAROOT="$AppleJavaFolder"
USER_HOME="$HOME"


# read the Java WorkingDirectory
JVMWorkDir=$(plist_get_java :WorkingDirectory | xargs)
# set Working Directory based upon PList value
if [[ ! -z $JVMWorkDir ]]; then
WorkingDirectory="$JVMWorkDir"
else
# AppPackageRoot is the standard WorkingDirectory when the script is started
WorkingDirectory="$AppPackageRoot"
fi
# expand variables $APP_PACKAGE, $JAVAROOT, $USER_HOME
WorkingDirectory=$(eval echo "$WorkingDirectory")


# read the MainClass name
JVMMainClass="$(plist_get_java :MainClass)"

# read the SplashFile name
JVMSplashFile=$(plist_get_java :SplashFile)

# read the JVM Properties as an array and retain spaces
IFS=$\\t\\n
JVMOptions=($(xargs -n1 <<<$(plist_get_java :Properties | grep " =" | sed s/^ */-D/g | sed -E s/ = (.*)$/="\\1"/g)))
unset IFS
# post processing of the array follows further below...

# read the ClassPath in either Array or String style
JVMClassPath_RAW=$(plist_get_java :ClassPath | xargs)
if [[ $JVMClassPath_RAW == *Array* ]] ; then
JVMClassPath=.$(plist_get_java :ClassPath | grep " " | sed s/^ */:/g | tr -d \\n | xargs)
else
JVMClassPath=$JVMClassPath_RAW
fi
# expand variables $APP_PACKAGE, $JAVAROOT, $USER_HOME
JVMClassPath=$(eval echo "$JVMClassPath")

# read the JVM Options in either Array or String style
JVMDefaultOptions_RAW=$(plist_get_java :VMOptions | xargs)
if [[ $JVMDefaultOptions_RAW == *Array* ]] ; then
JVMDefaultOptions=$(plist_get_java :VMOptions | grep " " | sed s/^ */ /g | tr -d \\n | xargs)
else
JVMDefaultOptions=$JVMDefaultOptions_RAW
fi

# read StartOnMainThread and add as -XstartOnFirstThread
JVMStartOnMainThread=$(plist_get_java :StartOnMainThread)
if [ "$JVMStartOnMainThread" == "true" ]; then
JVMDefaultOptions+=" -XstartOnFirstThread"
fi

# read the JVM Arguments in either Array or String style (#76) and retain spaces
IFS=$\\t\\n
MainArgs_RAW=$(plist_get_java :Arguments | xargs)
if [[ $MainArgs_RAW == *Array* ]] ; then
MainArgs=($(xargs -n1 <<<$(plist_get_java :Arguments | tr -d \\n | sed -E s/Array \\ *(.*) *\\/\\1/g | sed s/ */ /g)))
else
MainArgs=($(xargs -n1 <<<$(plist_get_java :Arguments)))
fi
unset IFS
# post processing of the array follows further below...

# read the Java version we want to find
JVMVersion=$(plist_get_java :JVMVersion | xargs)
# post processing of the version string follows below...


# read Info.plist file in Oracle style
else
stub_logger "[PlistStyle] Oracle"

# set Working Directory and Java and Resources folder
JavaFolder="$OracleJavaFolder"
ResourcesFolder="$OracleResourcesFolder"
WorkingDirectory="$OracleJavaFolder"

APP_ROOT="$AppPackageFolder"

# read the MainClass name
JVMMainClass="$(plist_get :JVMMainClassName)"

# read the SplashFile name
JVMSplashFile=$(plist_get :JVMSplashFile)

# read the JVM Options as an array and retain spaces
IFS=$\\t\\n
JVMOptions=($(plist_get :JVMOptions | grep " " | sed s/^ *//g))
unset IFS
# post processing of the array follows further below...

# read the ClassPath in either Array or String style
JVMClassPath_RAW=$(plist_get :JVMClassPath)
if [[ $JVMClassPath_RAW == *Array* ]] ; then
JVMClassPath=.$(plist_get :JVMClassPath | grep " " | sed s/^ */:/g | tr -d \\n | xargs)
# expand variables $APP_PACKAGE, $JAVAROOT, $USER_HOME
JVMClassPath=$(eval echo "$JVMClassPath")

elif [[ ! -z $JVMClassPath_RAW ]] ; then
JVMClassPath=$JVMClassPath_RAW
# expand variables $APP_PACKAGE, $JAVAROOT, $USER_HOME
JVMClassPath=$(eval echo "$JVMClassPath")

else
#default: fallback to OracleJavaFolder
JVMClassPath="$JavaFolder/*"
# Do NOT expand the default AppName.app/Contents/Java/* classpath (#42)
fi

# read the JVM Default Options
JVMDefaultOptions=$(plist_get :JVMDefaultOptions | grep -o " \\-.*" | tr -d \\n | xargs)

# read the Main Arguments from JVMArguments key as an array and retain spaces (see #46 for naming details)
IFS=$\\t\\n
MainArgs=($(xargs -n1 <<<$(plist_get :JVMArguments | tr -d \\n | sed -E s/Array \\ *(.*) *\\/\\1/g | sed s/ */ /g)))
unset IFS
# post processing of the array follows further below...

# read the Java version we want to find
JVMVersion=$(plist_get :JVMVersion | xargs)
# post processing of the version string follows below...
fi


# (#75) check for undefined icons or icon names without .icns extension and prepare
# an osascript statement for those cases when the icon can be shown in the dialog
DialogWithIcon=""
if [ ! -z $CFBundleIconFile ]; then
if [[ $CFBundleIconFile == *.icns ]] && [[ -f "$ResourcesFolder/$CFBundleIconFile" ]] ; then
DialogWithIcon=" with icon path to resource \\"$CFBundleIconFile\\" in bundle (path to me)"
elif [[ $CFBundleIconFile != *.icns ]] && [[ -f "$ResourcesFolder/$CFBundleIconFile.icns" ]] ; then
CFBundleIconFile+=".icns"
DialogWithIcon=" with icon path to resource \\"$CFBundleIconFile\\" in bundle (path to me)"
fi
fi


# JVMVersion: post processing and optional splitting
if [[ $JVMVersion == *";"* ]]; then
minMaxArray=($JVMVersion//;/ )
JVMVersion=$minMaxArray[0]//+
JVMMaxVersion=$minMaxArray[1]//+
fi
stub_logger "[JavaRequirement] JVM minimum version: $JVMVersion"
stub_logger "[JavaRequirement] JVM maximum version: $JVMMaxVersion"

# MainArgs: replace occurences of $APP_ROOT with its content
MainArgsArr=()
for i in "$MainArgs[@]"
do
MainArgsArr+=("$(eval echo "$i")")
done

# JVMOptions: replace occurences of $APP_ROOT with its content
JVMOptionsArr=()
for i in "$JVMOptions[@]"
do
JVMOptionsArr+=("$(eval echo "$i")")
done


# internationalized messages
############################################

LANG=$(defaults read -g AppleLocale)
stub_logger "[Language] $LANG"

# French localization
if [[ $LANG == fr* ]] ; then
MSG_ERROR_LAUNCHING="ERREUR au lancement de $CFBundleName."
MSG_MISSING_MAINCLASS="MainClass nest pas spécifié.\\nLapplication Java ne peut pas être lancée."
MSG_JVMVERSION_REQ_INVALID="La syntaxe de la version de Java demandée est invalide: %s\\nVeuillez contacter le développeur de lapplication."
MSG_NO_SUITABLE_JAVA="La version de Java installée sur votre système ne convient pas.\\nCe programme nécessite Java %s"
MSG_JAVA_VERSION_OR_LATER="ou ultérieur"
MSG_JAVA_VERSION_LATEST="(dernière mise à jour)"
MSG_JAVA_VERSION_MAX="à %s"
MSG_NO_SUITABLE_JAVA_CHECK="Merci de bien vouloir installer la version de Java requise."
MSG_INSTALL_JAVA="Java doit être installé sur votre système.\\nRendez-vous sur java.com et suivez les instructions dinstallation..."
MSG_LATER="Plus tard"
MSG_VISIT_JAVA_DOT_COM="Java by Oracle"
MSG_VISIT_ADOPTOPENJDK="Java by AdoptOpenJDK"

# German localization
elif [[ $LANG == de* ]] ; then
MSG_ERROR_LAUNCHING="FEHLER beim Starten von $CFBundleName."
MSG_MISSING_MAINCLASS="Die MainClass ist nicht spezifiziert!\\nDie Java-Anwendung kann nicht gestartet werden!"
MSG_JVMVERSION_REQ_INVALID="Die Syntax der angeforderten Java-Version ist ungültig: %s\\nBitte kontaktieren Sie den Entwickler der App."
MSG_NO_SUITABLE_JAVA="Es wurde keine passende Java-Version auf Ihrem System gefunden!\\nDieses Programm benötigt Java %s"
MSG_JAVA_VERSION_OR_LATER="oder neuer"
MSG_JAVA_VERSION_LATEST="(neuste Unterversion)"
MSG_JAVA_VERSION_MAX="bis %s"
MSG_NO_SUITABLE_JAVA_CHECK="Stellen Sie sicher, dass die angeforderte Java-Version installiert ist."
MSG_INSTALL_JAVA="Auf Ihrem System muss die Java-Software installiert sein.\\nBesuchen Sie java.com für weitere Installationshinweise."
MSG_LATER="Später"
MSG_VISIT_JAVA_DOT_COM="Java von Oracle"
MSG_VISIT_ADOPTOPENJDK="Java von AdoptOpenJDK"

# Simplifyed Chinese localization
elif [[ $LANG == zh* ]] ; then
MSG_ERROR_LAUNCHING="无法启动 $CFBundleName."
MSG_MISSING_MAINCLASS="没有指定 MainClass!\\nJava程序无法启动!"
MSG_JVMVERSION_REQ_INVALID="Java版本参数语法错误: %s\\n请联系该应用的开发者。"
MSG_NO_SUITABLE_JAVA="没有在系统中找到合适的Java版本!\\n必须安装Java %s才能够使用该程序!"
MSG_JAVA_VERSION_OR_LATER="及以上版本"
MSG_JAVA_VERSION_LATEST="(最新版本)"
MSG_JAVA_VERSION_MAX="最高为 %s"
MSG_NO_SUITABLE_JAVA_CHECK="请确保系统中安装了所需的Java版本"
MSG_INSTALL_JAVA="你需要在Mac中安装Java运行环境!\\n访问 java.com 了解如何安装。"
MSG_LATER="稍后"
MSG_VISIT_JAVA_DOT_COM="Java by Oracle"
MSG_VISIT_ADOPTOPENJDK="Java by AdoptOpenJDK"

# English default localization
else
MSG_ERROR_LAUNCHING="ERROR launching $CFBundleName."
MSG_MISSING_MAINCLASS="MainClass isnt specified!\\nJava application cannot be started!"
MSG_JVMVERSION_REQ_INVALID="The syntax of the required Java version is invalid: %s\\nPlease contact the App developer."
MSG_NO_SUITABLE_JAVA="No suitable Java version found on your system!\\nThis program requires Java %s"
MSG_JAVA_VERSION_OR_LATER="or later"
MSG_JAVA_VERSION_LATEST="(latest update)"
MSG_JAVA_VERSION_MAX="up to %s"
MSG_NO_SUITABLE_JAVA_CHECK="Make sure you install the required Java version."
MSG_INSTALL_JAVA="You need to have JAVA installed on your Mac!\\nVisit java.com for installation instructions..."
MSG_LATER="Later"
MSG_VISIT_JAVA_DOT_COM="Java by Oracle"
MSG_VISIT_ADOPTOPENJDK="Java by AdoptOpenJDK"
fi



# function get_java_version_from_cmd()
#
# returns Java version string from java -version command
# works for both old (1.8) and new (9) version schema
#
# @param1 path to a java JVM executable
# @return the Java version number as displayed in java -version command
################################################################################
function get_java_version_from_cmd()
# second sed command strips " and -ea from the version string
echo $("$1" -version 2>&1 | awk /version/print $3 | sed -E s/"//g;s/-ea//g)



# function extract_java_major_version()
#
# extract Java major version from a version string
#
# @param1 a Java version number (1.8.0_45) or requirement string (1.8+)
# @return the major version (e.g. 7, 8 or 9, etc.)
################################################################################
function extract_java_major_version()
echo $(echo "$1" | sed -E s/^1\\.//;s/^([0-9]+)(-ea|(\\.[0-9_.]1,7)?)(-b[0-9]+-[0-9]+)?[+*]?$/\\1/)



# function get_comparable_java_version()
#
# return comparable version for a Java version number or requirement string
#
# @param1 a Java version number (1.8.0_45) or requirement string (1.8+)
# @return an 8 digit numeral (1.8.0_45->08000045; 9.1.13->09001013)
################################################################################
function get_comparable_java_version()
# cleaning: 1) remove leading 1.; 2) remove build string (e.g. -b14-468); 3) remove a-Z and -*+ (e.g. -ea); 4) replace _ with .
local cleaned=$(echo "$1" | sed -E s/^1\\.//g;s/-b[0-9]+-[0-9]+$//g;s/[a-zA-Z+*\\-]//g;s/_/./g)
# splitting at . into an array
local arr=( $cleaned//./ )
# echo a string with left padded version numbers
echo "$(printf %02s $arr[0])$(printf %03s $arr[1])$(printf %03s $arr[2])"



# function is_valid_requirement_pattern()
#
# check whether the Java requirement is a valid requirement pattern
#
# supported requirements are for example:
# - 1.6 requires Java 6 (any update) [1.6, 1.6.0_45, 1.6.0_88]
# - 1.6* requires Java 6 (any update) [1.6, 1.6.0_45, 1.6.0_88]
# - 1.6+ requires Java 6 or higher [1.6, 1.6.0_45, 1.8, 9, etc.]
# - 1.6.0 requires Java 6 (any update) [1.6, 1.6.0_45, 1.6.0_88]
# - 1.6.0_45 requires Java 6u45 [1.6.0_45]
# - 1.6.0_45+ requires Java 6u45 or higher [1.6.0_45, 1.6.0_88, 1.8, etc.]
# - 9 requires Java 9 (any update) [9.0.*, 9.1, 9.3, etc.]
# - 9* requires Java 9 (any update) [9.0.*, 9.1, 9.3, etc.]
# - 9+ requires Java 9 or higher [9.0, 9.1, 10, etc.]
# - 9.1 requires Java 9.1 (any update) [9.1.*, 9.1.2, 9.1.13, etc.]
# - 9.1* requires Java 9.1 (any update) [9.1.*, 9.1.2, 9.1.13, etc.]
# - 9.1+ requires Java 9.1 or higher [9.1, 9.2, 10, etc.]
# - 9.1.3 requires Java 9.1.3 [9.1.3]
# - 9.1.3* requires Java 9.1.3 (any update) [9.1.3]
# - 9.1.3+ requires Java 9.1.3 or higher [9.1.3, 9.1.4, 9.2.*, 10, etc.]
# - 10-ea requires Java 10 (early access release)
#
# unsupported requirement patterns are for example:
# - 1.2, 1.3, 1.9 Java 2, 3 are not supported
# - 1.9 Java 9 introduced a new versioning scheme
# - 6u45 known versioning syntax, but unsupported
# - 9-ea*, 9-ea+ early access releases paired with */+
# - 9., 9.*, 9.+ version ending with a .
# - 9.1., 9.1.*, 9.1.+ version ending with a .
# - 9.3.5.6 4 part version number is unsupported
#
# @param1 a Java requirement string (1.8+)
# @return boolean exit code: 0 (is valid), 1 (is not valid)
################################################################################
function is_valid_requirement_pattern()
local java_req=$1
java8pattern=1\\.[4-8](\\.[0-9]+)?(\\.0_[0-9]+)?[*+]?
java9pattern=(9|1[0-9])(-ea|[*+]|(\\.[0-9]+)1,2[*+]?)?
# test matches either old Java versioning scheme (up to 1.8) or new scheme (starting with 9)
if [[ $java_req =~ ^($java8pattern|$java9pattern)$ ]]; then
return 0
else
return 1
fi




# determine which JVM to use
############################################

# default Apple JRE plugin path (< 1.6)
apple_jre_plugin="/Library/Java/Home/bin/java"
apple_jre_version=$(get_java_version_from_cmd "$apple_jre_plugin")
# default Oracle JRE plugin path (>= 1.7)
oracle_jre_plugin="/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java"
oracle_jre_version=$(get_java_version_from_cmd "$oracle_jre_plugin")


# first check system variable "$JAVA_HOME" -> has precedence over any other System JVM
stub_logger [JavaSearch] Checking for $JAVA_HOME ...
if [ -n "$JAVA_HOME" ] ; then
stub_logger "[JavaSearch] ... found JAVA_HOME with value $JAVA_HOME"

# PR 26: Allow specifying "$JAVA_HOME" relative to "$AppPackageFolder"
# which allows for bundling a custom version of Java inside your app!
if [[ $JAVA_HOME == /* ]] ; then
# if "$JAVA_HOME" starts with a Slash its an absolute path
JAVACMD="$JAVA_HOME/bin/java"
else
# otherwise its a relative path to "$AppPackageFolder"
JAVACMD="$AppPackageFolder/$JAVA_HOME/bin/java"
fi
JAVACMD_version=$(get_comparable_java_version $(get_java_version_from_cmd "$JAVACMD"))
else
stub_logger "[JavaSearch] ... didnt found JAVA_HOME"
fi


# check for any other or a specific Java version
# also if $JAVA_HOME exists but isnt executable
if [ -z "$JAVACMD" ] || [ ! -x "$JAVACMD" ] ; then
stub_logger "[JavaSearch] Checking for JavaVirtualMachines on the system ..."
# reset variables
JAVACMD=""
JAVACMD_version=""

# first check whether JVMVersion string is a valid requirement string
if [ ! -z "$JVMVersion" ] && ! is_valid_requirement_pattern $JVMVersion ; then
MSG_JVMVERSION_REQ_INVALID_EXPANDED=$(printf "$MSG_JVMVERSION_REQ_INVALID" "$JVMVersion")
# log exit cause
stub_logger "[EXIT 4] $MSG_JVMVERSION_REQ_INVALID_EXPANDED"
# display error message with AppleScript
osascript -e "tell application \\"System Events\\" to display dialog \\"$MSG_ERROR_LAUNCHING\\n\\n$MSG_JVMVERSION_REQ_INVALID_EXPANDED\\" with title \\"$CFBundleName\\" buttons \\" OK \\" default button 1$DialogWithIcon"
# exit with error
exit 4
fi
# then check whether JVMMaxVersion string is a valid requirement string
if [ ! -z "$JVMMaxVersion" ] && ! is_valid_requirement_pattern $JVMMaxVersion ; then
MSG_JVMVERSION_REQ_INVALID_EXPANDED=$(printf "$MSG_JVMVERSION_REQ_INVALID" "$JVMMaxVersion")
# log exit cause
stub_logger "[EXIT 5] $MSG_JVMVERSION_REQ_INVALID_EXPANDED"
# display error message with AppleScript
osascript -e "tell application \\"System Events\\" to display dialog \\"$MSG_ERROR_LAUNCHING\\n\\n$MSG_JVMVERSION_REQ_INVALID_EXPANDED\\" with title \\"$CFBundleName\\" buttons \\" OK \\" default button 1$DialogWithIcon"
# exit with error
exit 5
fi


# find installed JavaVirtualMachines (JDK + JRE)
allJVMs=()
# read JDKs from /usr/libexec/java_home -V command
while read -r line; do
version=$(echo $line | awk -F $, print $1;)
path=$(echo $line | awk -F $" print $2;)
path+="/bin/java"
allJVMs+=("$version:$path")
done < <(/usr/libexec/java_home -V 2>&1 | grep ^[[:space:]])
# unset while loop variables
unset version path

# add Apple JRE if available
if [ -x "$apple_jre_plugin" ] ; then
allJVMs+=("$apple_jre_version:$apple_jre_plugin")
fi

# add Oracle JRE if available
if [ -x "$oracle_jre_plugin" ] ; then
allJVMs+=("$oracle_jre_version:$oracle_jre_plugin")
fi

# debug output
for i in "$allJVMs[@]"
do
stub_logger "[JavaSearch] ... found JVM: $i"
done


# determine JVMs matching the min/max version requirement
minC=$(get_comparable_java_version $JVMVersion)
maxC=$(get_comparable_java_version $JVMMaxVersion)
matchingJVMs=()

for i in "$allJVMs[@]"
do
# split JVM string at : delimiter to retain spaces in $path substring
IFS=: arr=($i) ; unset IFS
# [0] JVM version number
ver=$arr[0]
# comparable JVM version number
comp=$(get_comparable_java_version $ver)
# [1] JVM path
path="$arr[1]"
# construct string item for adding to the "matchingJVMs" array
item="$comp:$ver:$path"

# pre-requisite: current version number needs to be greater than min version number
if [ "$comp" -ge "$minC" ] ; then

# perform max version checks if max version requirement is present
if [ ! -z $JVMMaxVersion ] ; then

# max version requirement ends with * modifier
if [[ $JVMMaxVersion == *\\* ]] ; then

# use the * modifier from the max version string as wildcard for a starts with comparison
# and check whether the current version number starts with the max version wildcard string
if [[ $ver == $JVMMaxVersion ]]; then
matchingJVMs+=("$item")

# or whether the current comparable version is lower than the comparable max version
elif [ "$comp" -le "$maxC" ] ; then
matchingJVMs+=("$item")
fi

# max version requirement ends with + modifier -> always add this version if its greater than $min
# because a max requirement with + modifier doesnt make sense
elif [[ $JVMMaxVersion == *+ ]] ; then
matchingJVMs+=("$item")

# matches 6 zeros at the end of the max version string (e.g. for 1.8, 9)
# -> then the max version string should be treated like with a * modifier at the end
#elif [[ $maxC =~ ^[0-9]206$ ]] && [ "$comp" -le $(( $maxC#0 + 999 )) ] ; then
# matchingJVMs+=("$item")

# matches 3 zeros at the end of the max version string (e.g. for 9.1, 10.3)
# -> then the max version string should be treated like with a * modifier at the end
#elif [[ $maxC =~ ^[0-9]503$ ]] && [ "$comp" -le "$maxC" ] ; then
# matchingJVMs+=("$item")

# matches standard requirements without modifier
elif [ "$comp" -le "$maxC" ]; then
matchingJVMs+=("$item")
fi

# no max version requirement:

# min version requirement ends with + modifier
# -> always add the current version because its greater than $min
elif [[ $JVMVersion == *+ ]] ; then
matchingJVMs+=("$item")

# min version requirement ends with * modifier
# -> use the * modifier from the min version string as wildcard for a starts with comparison
# and check whether the current version number starts with the min version wildcard string
elif [[ $JVMVersion == *\\* ]] ; then
if [[ $ver == $JVMVersion ]] ; then
matchingJVMs+=("$item")
fi

# compare the min version against the current version with an additional * wildcard for a starts with comparison
# -> e.g. add 1.8.0_44 when the requirement is 1.8
elif [[ $ver == $JVMVersion* ]] ; then
matchingJVMs+=("$item")
fi
fi
done
# unset for loop variables
unset arr ver comp path item

# debug output
for i in "$matchingJVMs[@]"
do
stub_logger "[JavaSearch] ... ... matches all requirements: $i"
done


# sort the matching JavaVirtualMachines by version number
# https://stackoverflow.com/a/11789688/1128689
IFS=$\\n matchingJVMs=($(sort -nr <<<"$matchingJVMs[*]"))
unset IFS


# get the highest matching JVM
for ((i = 0; i < $#matchingJVMs[@]; i++));
do
# split JVM string at : delimiter to retain spaces in $path substring
IFS=: arr=($matchingJVMs[$i]) ; unset IFS
# [0] comparable JVM version number
comp=$arr[0]
# [1] JVM version number
ver=$arr[1]
# [2] JVM path
path="$arr[2]"

# use current value as JAVACMD if its executable
if [ -x "$path" ] ; then
JAVACMD="$path"
JAVACMD_version=$comp
break
fi
done
# unset for loop variables
unset arr comp ver path
fi

# log the Java Command and the extracted version number
stub_logger "[JavaCommand] $JAVACMD"
stub_logger "[JavaVersion] $(get_java_version_from_cmd "$JAVACMD")$JAVACMD_version:+ / $JAVACMD_version"



if [ -z "$JAVACMD" ] || [ ! -x "$JAVACMD" ] ; then

# different error messages when a specific JVM was required
if [ ! -z "$JVMVersion" ] ; then
# display human readable java version (#28)
java_version_hr=$(echo $JVMVersion | sed -E s/^1\\.([0-9+*]+)$/ \\1/g | sed "s/+/ $MSG_JAVA_VERSION_OR_LATER/;s/*/ $MSG_JAVA_VERSION_LATEST/")
MSG_NO_SUITABLE_JAVA_EXPANDED=$(printf "$MSG_NO_SUITABLE_JAVA" "$java_version_hr").

if [ ! -z "$JVMMaxVersion" ] ; then
java_version_hr=$(extract_java_major_version $JVMVersion)
java_version_max_hr=$(echo $JVMMaxVersion | sed -E s/^1\\.([0-9+*]+)$/ \\1/g | sed "s/+//;s/*/ $MSG_JAVA_VERSION_LATEST/")
MSG_NO_SUITABLE_JAVA_EXPANDED="$(printf "$MSG_NO_SUITABLE_JAVA" "$java_version_hr") $(printf "$MSG_JAVA_VERSION_MAX" "$java_version_max_hr")"
fi

# log exit cause
stub_logger "[EXIT 3] $MSG_NO_SUITABLE_JAVA_EXPANDED"

# display error message with AppleScript
osascript -e "tell application \\"System Events\\" to display dialog \\"$MSG_ERROR_LAUNCHING\\n\\n$MSG_NO_SUITABLE_JAVA_EXPANDED\\n$MSG_NO_SUITABLE_JAVA_CHECK\\" with title \\"$CFBundleName\\" buttons \\" OK \\", \\"$MSG_VISIT_JAVA_DOT_COM\\", \\"$MSG_VISIT_ADOPTOPENJDK\\" default button 1$DialogWithIcon" \\
-e "set response to button returned of the result" \\
-e "if response is \\"$MSG_VISIT_JAVA_DOT_COM\\" then open location \\"https://www.java.com/download/\\"" \\
-e "if response is \\"$MSG_VISIT_ADOPTOPENJDK\\" then open location \\"https://adoptopenjdk.net/releases.html\\""
# exit with error
exit 3

else
# log exit cause
stub_logger "[EXIT 1] $MSG_ERROR_LAUNCHING"
# display error message with AppleScript
osascript -e "tell application \\"System Events\\" to display dialog \\"$MSG_ERROR_LAUNCHING\\n\\n$MSG_INSTALL_JAVA\\" with title \\"$CFBundleName\\" buttons \\"$MSG_LATER\\", \\"$MSG_VISIT_JAVA_DOT_COM\\", \\"$MSG_VISIT_ADOPTOPENJDK\\" default button 1$DialogWithIcon" \\
-e "set response to button returned of the result" \\
-e "if response is \\"$MSG_VISIT_JAVA_DOT_COM\\" then open location \\"https://www.java.com/download/\\"" \\
-e "if response is \\"$MSG_VISIT_ADOPTOPENJDK\\" then open location \\"https://adoptopenjdk.net/releases.html\\""
# exit with error
exit 1
fi
fi



# MainClass check
############################################

if [ -z "$JVMMainClass" ]; then
# log exit cause
stub_logger "[EXIT 2] $MSG_MISSING_MAINCLASS"
# display error message with AppleScript
osascript -e "tell application \\"System Events\\" to display dialog \\"$MSG_ERROR_LAUNCHING\\n\\n$MSG_MISSING_MAINCLASS\\" with title \\"$CFBundleName\\" buttons \\" OK \\" default button 1$DialogWithIcon"
# exit with error
exit 2
fi



# execute $JAVACMD and do some preparation
############################################

# enable drag&drop to the dock icon
export CFProcessPath="$0"

# remove Apples ProcessSerialNumber from passthru arguments (#39)
if [[ "$*" == -psn* ]] ; then
ArgsPassthru=()
else
ArgsPassthru=("$@")
fi

# change to Working Directory based upon Apple/Oracle Plist info
cd "$WorkingDirectory" || exit 13
stub_logger "[WorkingDirectory] $WorkingDirectory"

# execute Java and set
# - classpath
# - splash image
# - dock icon
# - app name
# - JVM options / properties (-D)
# - JVM default options (-X)
# - main class
# - main class arguments
# - passthrough arguments from Terminal or DragnDrop to Finder icon
stub_logger "[Exec] \\"$JAVACMD\\" -cp \\"$JVMClassPath\\" -splash:\\"$ResourcesFolder/$JVMSplashFile\\" -Xdock:icon=\\"$ResourcesFolder/$CFBundleIconFile\\" -Xdock:name=\\"$CFBundleName\\" $JVMOptionsArr:+$(printf "%s " "$JVMOptionsArr[@]") $JVMDefaultOptions:+$JVMDefaultOptions $JVMMainClass$MainArgsArr:+ $(printf "%s " "$MainArgsArr[@]")$ArgsPassthru:+ $(printf "%s " "$ArgsPassthru[@]")"
exec "$JAVACMD" \\
-cp "$JVMClassPath" \\
-splash:"$ResourcesFolder/$JVMSplashFile" \\
-Xdock:icon="$ResourcesFolder/$CFBundleIconFile" \\
-Xdock:name="$CFBundleName" \\
$JVMOptionsArr:+"$JVMOptionsArr[@]" \\
$JVMDefaultOptions:+$JVMDefaultOptions \\
"$JVMMainClass"\\
$MainArgsArr:+ "$MainArgsArr[@]"\\
$ArgsPassthru:+ "$ArgsPassthru[@]"


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