Java: Difference between revisions

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== VSCode + Language Support for Java (TM) by Red Hat extension ==

Unfortunately the extension contains and uses a version of the JRE which makes use of dynamically loaded libraries, which nix cannot accomodate out-of-the-box. Fortunately there's a simple solution in the use of [https://github.com/Mic92/nix-ld nix-ld]. Here's a simple flake.nix to get you started (I'll focus on the devShell part for brevity):<syntaxhighlight lang="nix" line highlight="6,10">

Unfortunately the extension contains and uses a version of the JRE which makes use of dynamically loaded libraries, which nix cannot accomodate out-of-the-box. Fortunately there's a simple solution in the use of [https://github.com/Mic92/nix-ld nix-ld]. Here's a simple flake.nix to get you started (I'll focus on the devShell part for brevity):

devShell = pkgs.mkShell {

buildInputs = [

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# ^--- when using direnv, this line will require the 'use flake --impure' option.

};

</syntaxhighlight>The important lines are the two ~~lines~~ starting with "NIX_LD...". They will let nix-ld wrap the required, dynamically loaded libraries so that they are found when building the devShell.

</syntaxhighlight>

The important lines above are the two starting with <code>NIX_LD...</code>. They will let nix-ld wrap the required, dynamically loaded libraries so that they are found when building the devShell.

Another solution is to use the <code>[https://github.com/redhat-developer/vscode-java?tab=readme-ov-file#supported-vs-code-settings java.jdt.ls.java.home]</code> VSCode setting to point to a nix-built Java 17. For example, using home-manager's settings: <syntaxhighlight lang="nix">

@@ Line 24: / Line 24: @@
 == VSCode + Language Support for Java (TM) by Red Hat extension ==
-Unfortunately the extension contains and uses a version of the JRE which makes use of dynamically loaded libraries, which nix cannot accomodate out-of-the-box. Fortunately there's a simple solution in the use of [https://github.com/Mic92/nix-ld nix-ld]. Here's a simple flake.nix to get you started (I'll focus on the devShell part for brevity):<syntaxhighlight lang="nix" line highlight="6,10">
+Unfortunately the extension contains and uses a version of the JRE which makes use of dynamically loaded libraries, which nix cannot accomodate out-of-the-box. Fortunately there's a simple solution in the use of [https://github.com/Mic92/nix-ld nix-ld]. Here's a simple flake.nix to get you started (I'll focus on the devShell part for brevity):
+<syntaxhighlight lang="nix" line highlight="6,10" copy>
 devShell = pkgs.mkShell {
    buildInputs = [
@@ Line 37: / Line 39: @@
    # ^--- when using direnv, this line will require the 'use flake --impure' option.
 };
-</syntaxhighlight>The important lines are the two lines starting with "NIX_LD...". They will let nix-ld wrap the required, dynamically loaded libraries so that they are found when building the devShell.
+</syntaxhighlight>
+The important lines above are the two starting with <code>NIX_LD...</code>. They will let nix-ld wrap the required, dynamically loaded libraries so that they are found when building the devShell.
 Another solution is to use the <code>[https://github.com/redhat-developer/vscode-java?tab=readme-ov-file#supported-vs-code-settings java.jdt.ls.java.home]</code> VSCode setting to point to a nix-built Java 17. For example, using home-manager's settings: <syntaxhighlight lang="nix">