From 4d0bca1c12c8de4b4e1f2a67a87ef66362f0dd03 Mon Sep 17 00:00:00 2001
From: Gea-Suan Lin <gslin@gslin.org>
Date: Wed, 30 Mar 2022 12:41:59 +0800
Subject: [PATCH] Set JAVA_HOME only if /usr/lib/jvm/default-java existing.

---
 .bashrc | 5 ++++-
 .zshrc  | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/.bashrc b/.bashrc
index 581454c..43b4ca6 100644
--- a/.bashrc
+++ b/.bashrc
@@ -51,13 +51,16 @@ export BLOCKSIZE="k"
 export GIT_PAGER="less"
 export HISTTIMEFORMAT="%y/%m/%d %T "
 export HOMEBREW_NO_ANALYTICS=1
-export JAVA_HOME=/usr/lib/jvm/default-java
 export LESS="-EfmrSwX"
 export LSCOLORS="gxfxcxdxbxegedabagacad"
 export PATH="$HOME/bin:$HOME/.local/bin:$HOME/.config/composer/vendor/bin:$HOME/node_modules/.bin:/usr/local/sbin:/usr/sbin:/sbin:$PATH"
 export PYTHONDONTWRITEBYTECODE=yes
 export QUILT_PATCHES="debian/patches"
 #
+if [ -e /usr/lib/jvm/default-java ]; then
+    export JAVA_HOME=/usr/lib/jvm/default-java
+fi
+#
 # Hack for gnome-terminal
 if [ "$COLORTERM" == "gnome-terminal" -a -z "$TMUX" -a -z "$SCREEN" ]; then
     export TERM=xterm-256color
diff --git a/.zshrc b/.zshrc
index 4d18318..84fc6bd 100644
--- a/.zshrc
+++ b/.zshrc
@@ -130,7 +130,6 @@ export GIT_PAGER="less"
 export HISTFILE="$HOME/.history"
 export HISTSIZE=2000
 export HOMEBREW_NO_ANALYTICS=1
-export JAVA_HOME=/usr/lib/jvm/default-java
 export LESS="-EfmrSwX"
 export LSCOLORS="gxfxcxdxbxegedabagacad"
 export PATH="$HOME/bin:$HOME/.local/bin:$HOME/.config/composer/vendor/bin:$HOME/node_modules/.bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
@@ -138,6 +137,10 @@ export PYTHONDONTWRITEBYTECODE=yes
 export QUILT_PATCHES="debian/patches"
 export SAVEHIST=2000
 #
+if [[ -e /usr/lib/jvm/default-java ]]; then
+    export JAVA_HOME=/usr/lib/jvm/default-java
+fi
+#
 if [[ -x /opt/homebrew/bin/most || -x /usr/local/bin/most || -x /usr/bin/most ]]; then
     export PAGER="most"
 else