Fatal error when JAVA_HOME is set incorrectly #472

Environment

• Operating system (including version): macOS 12.4 (21F79)
• mkcert version (from mkcert -version): v1.4.4
• Server (where the certificate is loaded): N/A
• Client (e.g. browser, CLI tool, or script): N/A

What you did

Ran mkcert -install

What went wrong

Error for reference

$ mkcert -install
The local CA is now installed in the system trust store! ⚡️
ERROR: failed to execute "keytool -list": exit status 1

keytool error: java.lang.Exception: Keystore file does not exist:

I have my JAVA_HOME ($HOME/homebrew/opt/openjdk) set to a user based homebrew location but it seems that neither of the following files exists causing the util to fatally abort.

• $JAVA_HOME/lib/security/cacerts

  mkcert/truststore_java.go

  Line 47 in 2a46726

  if pathExists(filepath.Join(v, "lib", "security", "cacerts")) {

• $JAVA_HOME/jre/lib/security/cacerts

  mkcert/truststore_java.go

  Line 51 in 2a46726

  if pathExists(filepath.Join(v, "jre", "lib", "security", "cacerts")) {

This forces the util to execute an invalid command with a missing param passed to -keystore.

$HOME/homebrew/opt/openjdk/bin/keytool -list -keystore  -storepass changeit

tl;dr when using a java install via homebrew set your JAVA_HOME to somewhere that has the file mkcert is looking for 😅.

This is ultimately what worked for me 🥳.

JAVA_HOME=<homebrewDir>/Cellar/openjdk/19/libexec/openjdk.jdk/Contents/Home"

Hope this helps anyone else who runs into a similar issue.