Cloudflare pages closure compiler

Developers Cloudflare Pages
1

I have a git project with some javascript files that I run through closure compiler before distributing. I am trying to get closure going on the pages build script but it appears that java is too old. I might be able to use an older version but I would rather not. Any other ideas? Could there be multiple java versions installed? Is the build OS/packages documented somewhere?

21:14:05.518	Error: A JNI error has occurred, please check your installation and try again
21:14:05.520	Exception in thread "main" java.lang.UnsupportedClassVersionError: com/google/javascript/jscomp/CommandLineRunner has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
21:14:05.520		at java.lang.ClassLoader.defineClass1(Native Method)
21:14:05.520		at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
21:14:05.520		at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
21:14:05.520		at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
21:14:05.520		at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
21:14:05.521		at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
21:14:05.521		at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
21:14:05.521		at java.security.AccessController.doPrivileged(Native Method)
21:14:05.521		at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
21:14:05.521		at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
21:14:05.521		at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
21:14:05.521		at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
21:14:05.521		at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)
21:14:05.531	Failed: build command exited with code: 1
21:14:06.568	Failed: an internal error occurred

Update: I did find a list of installed packages

It only has java 8 support so im still looking for a solution

2

You either need to use direct uploads or wait for build image v2

3

Using npm to install closure gives a different error
npm i -g google-closure-compiler

21:41:01.603	/opt/buildhome/.nvm/versions/node/v12.18.0/bin/google-closure-compiler
21:41:02.804	/opt/buildhome/.nvm/versions/node/v12.18.0/lib/node_modules/google-closure-compiler/node_modules/google-closure-compiler-linux/compiler: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by /opt/buildhome/.nvm/versions/node/v12.18.0/lib/node_modules/google-closure-compiler/node_modules/google-closure-compiler-linux/compiler)
21:41:02.804	/opt/buildhome/.nvm/versions/node/v12.18.0/lib/node_modules/google-closure-compiler/node_modules/google-closure-compiler-linux/compiler: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by /opt/buildhome/.nvm/versions/node/v12.18.0/lib/node_modules/google-closure-compiler/node_modules/google-closure-compiler-linux/compiler)
21:41:02.815	Failed: build command exited with code: 1
21:41:04.065	Failed: an internal error occurred
4

I did upload the java jar
java -jar closure-compiler-v20230103.jar

Is there a way to direct upload java or something else in mind?

5

You need to run the jar file locally then upload the output of that.

6

That kind of defeats the purpose of building from github. There has to be something that can be done.

7

Until page image v2 comes out (Q1 2023) you can only direct upload.

8

I got it!
Simply getting the newer version of java worked out without any issues

wget https://download.oracle.com/java/19/latest/jdk-19_linux-x64_bin.tar.gz
tar -xzf jdk*.tar.gz
rm jdk*.tar.gz
jdk*/bin/java -jar ...