How to install unlimited strength JCE for JRE 7 in MacOSX?

Question

I installed Oracle JRE 7 (not JDK) for MacOSX but I can't locate where the JCE jurisdiction files are placed.

I need to replace them with the unlimited strength version.

Answer 1

I've installed the Oracle JDK, and if it helps, the directory in my case was /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home/jre/lib/security/. Your mileage may vary, in which case just run find . -name local_policy.jar and see what it turns up.

Answer 2

This is for the JDK, not the JRE.

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I'm on a Mac, OSx Lion and I used /usr/libexec/java_home to find my java home

/usr/libexec/java_home -V # Matching Java Virtual Machines (3): #     1.7.0_51, x86_64: "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home #     1.6.0_65-b14-462, x86_64: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home #     1.6.0_65-b14-462, i386:   "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home #  # /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home  /usr/libexec/java_home # /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home  /usr/libexec/java_home -v 1.6 # /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home  /usr/libexec/java_home -v 1.7 # /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home 

From here you can use this executable and find to locate these files

find $(/usr/libexec/java_home -v 1.7) -name local_policy.jar # /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/security/local_policy.jar  find $(/usr/libexec/java_home -v 1.7) -name US_export_policy.jar # /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/security/US_export_policy.jar 

And combine that with @ngreen's answer to get the md5 of these files (if you want)

find ~/Downloads/UnlimitedJCEPolicy -name *.jar |xargs md5 # MD5 (/Users/nperry/Downloads/UnlimitedJCEPolicy/local_policy.jar) = 9dd69bcc7637d872121880c35437788d # MD5 (/Users/nperry/Downloads/UnlimitedJCEPolicy/US_export_policy.jar) = 3bb2e88a915b3cb003ca185357a92c16  find $(/usr/libexec/java_home -v 1.7) -name local_policy.jar | xargs md5 # MD5 (/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/security/local_policy.jar) = f41ab8f64b1fa13fec7276579c420951  find $(/usr/libexec/java_home -v 1.7) -name US_export_policy.jar | xargs md5 # MD5 (/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/security/US_export_policy.jar) = d5d126ae15abecb7d6e3a28b0d57543e 

And you can see I have not replaced these files yet.

Backup the original files if you want

mkdir ~/Downloads/JCEPolicy-originals-1.7/ cp $(find $(/usr/libexec/java_home -v 1.7) -name local_policy.jar)     ~/Downloads/JCEPolicy-originals-1.7/ cp $(find $(/usr/libexec/java_home -v 1.7) -name US_export_policy.jar) ~/Downloads/JCEPolicy-originals-1.7/ 

You can replace the files with this.

sudo cp ~/Downloads/UnlimitedJCEPolicy/local_policy.jar $(find $(/usr/libexec/java_home -v 1.7) -name local_policy.jar) sudo cp ~/Downloads/UnlimitedJCEPolicy/US_export_policy.jar $(find $(/usr/libexec/java_home -v 1.7) -name US_export_policy.jar) 

And getting the MD5s tells me if it worked

find $(/usr/libexec/java_home -v 1.7) -name local_policy.jar | xargs md5 # MD5 (/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/security/local_policy.jar) = 9dd69bcc7637d872121880c35437788d  find $(/usr/libexec/java_home -v 1.7) -name US_export_policy.jar | xargs md5 # MD5 (/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/security/US_export_policy.jar) = 3bb2e88a915b3cb003ca185357a92c16