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I am looking on how how to obtain the location of cacerts of the default java installation, when you do not have JAVA_HOME or JRE_HOME defined.
I need a solution that works at least for OS X and Linux.
Yes. java -v is assumed to work :)
604
You can find the cacerts file in the runtime environment installation directory. Contact your system administrator if you do not have permission to edit this file.
By default, Java has a keystore file located at JAVA_HOME/jre/lib/security/cacerts. We can access this keystore using the default keystore password changeit.
Java certificates are stored in a file called cacerts located at C:\Program Files (x86)\Java\jre1. x. x_xxx\lib\security\ You can open javacpl.exe to get a graphical overview about the content: Step 1.
Under Linux, to find the location of $JAVA_HOME:
readlink -f /usr/bin/java | sed "s:bin/java::"
the cacerts are under lib/security/cacerts:
$(readlink -f /usr/bin/java | sed "s:bin/java::")lib/security/cacerts
Under mac OS X , to find $JAVA_HOME run:
/usr/libexec/java_home
the cacerts are under Home/lib/security/cacerts:
$(/usr/libexec/java_home)/lib/security/cacerts
UPDATE (OS X with JDK)
above code was tested on computer without JDK installed. With JDK installed, as pR0Ps said, it's at
$(/usr/libexec/java_home)/jre/lib/security/cacerts
As of OS X 10.10.1 (Yosemite), the location of the cacerts file has been changed to
$(/usr/libexec/java_home)/jre/lib/security/cacerts
You can also consult readlink -f "which java". However it might not work for all binary wrappers. It is most likely better to actually start a Java class.
42
In MacOS Mojave, the location is:
/Library/Java/JavaVirtualMachines/jdk1.8.0_192.jdk/Contents/Home/jre/lib/security/cacerts
If using sdkman to manage java versions, the cacerts is in
~/.sdkman/candidates/java/current/jre/lib/security
For Java 9 onwards, it's in
${JAVA_HOME}/lib/security/cacerts
as opposed to the usual
${JAVA_HOME}/jre/lib/security/cacerts
25
In High Sierra, the cacerts is located at : /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre/lib/security/cacerts
40
In Ubuntu 20.04.3 LTS, the cacerts is located at: /etc/ssl/certs/java/cacerts
$ java --version
openjdk 11.0.11 2021-04-20
OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.20.04)
OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.20.04, mixed mode, sharing)
$ ls -lah /usr/lib/jvm/java-11-openjdk-amd64/lib/security/cacerts*
/usr/lib/jvm/java-11-openjdk-amd64/lib/security/cacerts -> /etc/ssl/certs/java/cacerts
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