java: remove IFD
The previous variant used IFD to generate the `JAVA_HOME` variable and relied on internal hooks of the `java` package, this failed for a user cross compiling their configuration. This PR changes that and uses the `home` attribute, as documented in the very last sentence of the https://nixos.org/manual/nixpkgs/stable/#sec-language-java chapter.
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@ -36,11 +36,6 @@ in {
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config = mkIf cfg.enable {
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home.packages = [ cfg.package ];
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home.sessionVariables = {
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JAVA_HOME = fileContents (pkgs.runCommandLocal "java-home" { } ''
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source "${cfg.package}/nix-support/setup-hook"
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echo "$JAVA_HOME" > $out
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'');
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};
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home.sessionVariables.JAVA_HOME = cfg.package.home;
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};
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}
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