jvr 0.3.1

A simple and easy-to-use Java version manager (registry: jvr), similar to Node.js's nvm, but it does not follow nvm's naming convention. Otherwise, it would be named 'jvm', which could cause command conflicts or ambiguity.
Documentation
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color|*-256color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
	# We have color support; assume it's compliant with Ecma-48
	# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
	# a case would tend to support setf rather than setaf.)
	color_prompt=yes
    else
	color_prompt=
    fi
fi

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
alias xx='clear'

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi

eval "$(starship init bash)"

# Kits
JAVA_HOME=/home/changjun/kits/jdk/jdk11
GRAALVM_HOME=/home/changjun/kits/jdk/gvm21
PDM_HOME=/home/changjun/kits/pdm
GOROOT=/home/changjun/kits/go
GOPATH=/home/changjun/workws/gows

PROTOC_HOME=/home/changjun/kits/protoc

MAVEN_HOME=/home/changjun/kits/maven
M2_HOME=/home/changjun/kits/maven
MAVEN_REPO=/home/changjun/kits/m2/repository
MAVEN_CENTRAL_KEY_NAME=io.github.photowey

GRADLE_HOME=/home/changjun/kits/gradle
GRADLE_USER_HOME=/home/changjun/kits/m2/repository

NUSHELL_HOME=/home/changjun/softwares/nu
ZED_HOME=/home/changjun/softwares/zed

JIFA_HOME=/home/changjun/softwares/jifa

PKG_CONFIG_PATH=/usr/lib/x86_64-linux-gnu/pkgconfig

NDK_TOOLCHAIN_26=$ANDROID_HOME/ndk/26.3.11579264/toolchains/llvm/prebuilt/linux-x86_64
NDK_TOOLCHAIN_27=$ANDROID_HOME/ndk/27.0.12077973/toolchains/llvm/prebuilt/linux-x86_64
NDK_TOOLCHAIN_28=$ANDROID_HOME/ndk/28.0.13004108/toolchains/llvm/prebuilt/linux-x86_64

NO_PROXY=".bilibili.com,.tongyi.com,.baidu.com,.taobao.com,.aliyun.com,127.0.0.1,localhost,::1"

CHROME_EXECUTABLE=/snap/bin/chromium

DART_HOME=/home/changjun/kits/flutter/bin/cache/dart-sdk
FLUTTER_HOME=/home/changjun/kits/flutter
ANDROID_HOME=/home/changjun/kits/android/sdk

PUB_HOSTED_URL="https://pub.flutter-io.cn"
FLUTTER_STORAGE_BASE_URL="https://storage.flutter-io.cn"
DEFAULT_MAVEN_HOST="https://storage.flutter-io.cn"

PATH=$PATH:$JAVA_HOME/bin:${GOPATH//://bin:}/bin:$MAVEN_HOME/bin:$GRADLE_HOME/bin:$FLUTTER_HOME/bin:$ANDROID_HOME/emulator:$ANDROID_HOME/platform-tools:$ANDROID_HOME/cmdline-tools/latest/bin:$ANDROID_HOME/tools:$ANDROID_HOME/tools/bin:$DART_HOME/bin:$GOROOT/bin:$JIFA_HOME/bin:$NDK_TOOLCHAIN_26/bin:$NDK_TOOLCHAIN_27/bin:$NDK_TOOLCHAIN_28/bin:$NUSHELL_HOME/bin:$PROTOC_HOME/bin:$PDM_HOME/bin:$ZED_HOME/bin

export PATH JAVA_HOME GRAALVM_HOME MAVEN_HOME M2_HOME GRADLE_HOME FLUTTER_HOME ANDROID_HOME PUB_HOSTED_URL FLUTTER_STORAGE_BASE_URL CHROME_EXECUTABLE NO_PROXY DART_HOME MAVEN_REPO GRADLE_USER_HOME PKG_CONFIG_PATH GOROOT GOPATH JIFA_HOME NUSHELL_HOME PROTOC_HOME PDM_HOME ZED_HOME

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
. "$HOME/.cargo/env"