Where is jarsigner

Question

I have the Android SDK installed on both a Linux machine using open SuSE 12 1  I ve used both machines to successfully build Android apps many times and sign them both with a debug key for testing and a release key from my own keystore  so it should be somewhere on each machine   Using the command  jarsigner   Returns a command not found error on both machines  however  I ve looked in the Android SDK folder  JDK folder on Windows  and  usr lib64 jvm  but it s not anywhere I ve looked   I assume it must be under a different name  I ve also run    find -name jarsigner   over the whole system on the Linux box with no success

User · Answer

This will install jdk for you and check for the jarsigner inside it sudo apt install -y default-jdk  to find jarsigner you can use whereis jarsigner

User · Answer

Find in  usr lib jvm java-8-oracle bin jarsigner -verbose -sigalg SHA1withRSA

User · Answer

For posterity s sake  if you are trying to actually use jarsigner to sign a jar file  such as that of an applet  with a keystore  you ll need to reference jarsigner while running the command from the folder that your keystore is in    cd  C  Program Files Java jre version   bin    then   C  Program Files Java jdk version   bin jarsigner exe  -keystore mykeystore  PATH TO YOUR  JAR  MyJarFile jar alias   The above might be obvious  but it took me a few tries because I was trying to call jarsigner while inside the JDK folder  which had no knowledge of where my keystore was  in the jre directory    so I hope this will help those who would like to see a usable syntax for that situation

User · Answer

If you can t find it  download and install Java JDK from here

User · Answer

This error comes when you only have JRE installed instead of JDK in your JAVA HOME variable  Unfortunately  you cannot have both of them installed in the same variable so you just need to overwrite the variable with new JDK installation path   The process should be the same as the way you had JRE installed

User · Answer

JAVA HOME  bin jarsigner  You can find jarsigner there  Install jdk first

User · Answer

For me the solution was in setting the global variable path to the JDK  See here   https   appopus wordpress com 2012 07 11 how-to-install-jdk-java-development-kit-and-jarsigner-on-windows

User · Answer

It s in the bin folder of your java JDK install  Java SE   If you only have the JRE installed you probably don t have it

User · Answer

In my case I try this   sudo apt install openjdk-11-jdk-headless sudo apt install openjdk-8-jdk-headless   I use openjdk

User · Answer

If you are on Mac or Linux  just go to the terminal and type in    whereis jarsigner   It will give you the location of the jarsigner

[java] Where is jarsigner?

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