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From: | Radoslav Petrov |
Subject: | Re: After installing Java, what should I set JAVA_HOME to? |
Date: | Sat, 12 Nov 2016 20:48:35 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 |
Hi, all. Apologises for the bad formatting but I wasn't member of
the mailing list when this message was sent. | Downloading https://services.gradle.org/distributions/gradle-3.0-bin.zip | | Exception in thread "main" javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: |java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty |(further stacktrace elided) | When I run `sudo ./gradlew clean`, it works fine. My suspicion
is that it's related to $JAVA_HOME being symlinked to something
not owned by my current user (/home/zck/.guix-profile is a symlink
to /var/guix/profiles/per-user/zck/guix-profile/, | which is a
symlink to /var/guix/profiles/per-user/zck/guix-profile-20-link/,
which is a symlink to
/gnu/store/c483gnpwwcmcwdbdba25q3c7x1g79mzm-profile/, which is
owned by root/guixbuild, although this directory has permissions
to read and execute for all users). After some trials, errors and reading I've found the problem: IcedTea is configured to use NSS service for handling the cryptography operations. The default install/config of the IcedTea in Guix configures "jdk_base_dir/jre/lib/security/nss.cfg" file correctly. Mine looks like this: name = NSS nssLibraryDirectory = /gnu/store/p2d98rbmb5sl7xgca8rf96k6zq51cww6-nss-3.27.1/lib/nss nssDbMode = noDb attributes = compatibility handleStartupErrors = ignoreMultipleInitialisationHowever this settings to take effect the JDK needs one more setting in another file: "jdk_base_dir/jre/lib/security/java.security" i.e. the same directory as "nss.cfg". Read the comments in the begging of the file to get a glimpse of what is configured there. If you look VERY closely around "List of providers and their security settings" you will see this: security.provider.9=sun.security.pkcs11.SunPKCS11 ${java.home}/lib/security/nss.cfgThis file exists(I'm not sure about this - I think I've found some file without the setting) in Guix but doesn't have the correct location of the NSS library set. My workaround was to manually override the JDK security settings by creating "nss.cfg" and "java.security" files in Tomcat "tomcat_base/bin" dir and point them to the correct locations. Here is the JDK cmd option (setting it through /bin/setenv.sh): -Djava.security.properties=java.securityThe contents of the custom "java.security" are copied from the original file. Only the line for the "nss.cfg" is changed: security.provider.9=sun.security.pkcs11.SunPKCS11 nss.cfgThe contents of the custom "nss.cfg" name=NSS nssLibraryDirectory=/var/guix/profiles/per-user/zloster/guix-profile/lib/nss nssDbMode=noDb attributes=compatibilityMost probably this is not the most appropriate way to configure the JDK/NSS relation in Guix but for a workaround it is fine. Here is a screenshot of Tomcat running (glorious moment for me:) ): https://www.edno.moe/image-share/2016-11-11-210342_1920x1080_scrot.png About a proper fix: IMO iced3 JDK Guix definition needs to process "java.security" file for the SunPKCS11 provider to override the JAVA_HOME definition with the file in the current version/dir/instance of the Guix package (I'm not sure for the correct term). But this have to be done on each update/upgrade of NSS package. So I'm not so sure about the proper way to fix this packaging problem. -- Поздрави, | Best regards, Радослав Петров | Radoslav Petrov |
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