Java runtime mismatch

[kristojorg]

I am trying to use trapeze to auto-increment my build numbers on AppFlow. I can successfully build my app on iOS, but when trying to build and Android binary, I get the below error. It seems to be caused by trapeze because when I remove trapeze, everything works and the build is fine. Is there a way to use a newer version of the Java Runtime?

[17:47:05]: $ npm run appflow:build
[17:47:06]: ▸ > oeh@3.0.0 appflow:build
[17:47:06]: ▸ > npx trapeze run appflow.yml -y && npm run build
[17:47:08]: ▸ run ios buildNumber 49
[17:47:08]: ▸ run android versionCode 49
[17:47:10]: ▸ Fatal error: Error running command
[17:47:10]: ▸ Error: Unable to load or parse gradle file: Error: A JNI error has occurred, please check your installation and try again,
[17:47:10]: ▸ ,Exception ,in thread "main" ,java.lang.UnsupportedClassVersionError: com/capacitorjs/gradle/Parse 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,
[17:47:10]: ▸ , at java.lang.ClassLoader.defineClass1(Native Method),
[17:47:10]: ▸ , at java.lang.ClassLoader.defineClass(ClassLoader.java:756),
[17:47:10]: ▸ , at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142),
[17:47:10]: ▸ , at java.net.URLClassLoader.defineClass(URLClassLoader.java:473),
[17:47:10]: ▸ , at java.net.URLClassLoader.access$100(URLClassLoader.java:74),
[17:47:10]: ▸ , at java.net.URLClassLoader$1.run(URLClassLoader.java:369),
[17:47:10]: ▸ , at java.net.URLClassLoader$1.run(URLClassLoader.java:363),
[17:47:10]: ▸ , at java.security.AccessController.doPrivileged(Native Method),
[17:47:10]: ▸ , at java.net.URLClassLoader.findClass(URLClassLoader.java:362),
[17:47:10]: ▸ , at java.lang.ClassLoader.loadClass(ClassLoader.java:418),
[17:47:10]: ▸ , at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352),
[17:47:10]: ▸ , at java.lang.ClassLoader.loadClass(ClassLoader.java:351),
[17:47:10]: ▸ , at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601),
[17:47:10]: ▸ at GradleFile.parse (/builds/NYPL-Simplified/circulation-patron-web/node_modules/@trapezedev/project/dist/android/gradle-file.js:228:19)
[17:47:10]: ▸ at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
[17:47:10]: ▸ at async GradleFile.replaceProperties (/builds/NYPL-Simplified/circulation-patron-web/node_modules/@trapezedev/project/dist/android/gradle-file.js:53:9)
[17:47:10]: ▸ at async executeOperations (/builds/NYPL-Simplified/circulation-patron-web/node_modules/@trapezedev/configure/dist/tasks/run.js:52:10)
[17:47:10]: ▸ at async runCommand (/builds/NYPL-Simplified/circulation-patron-web/node_modules/@trapezedev/configure/dist/tasks/run.js:31:9)
[17:47:10]: ▸ at async /builds/NYPL-Simplified/circulation-patron-web/node_modules/@trapezedev/configure/dist/index.js:56:13
[17:47:10]: ▸ at async Command.<anonymous> (/builds/NYPL-Simplified/circulation-patron-web/node_modules/@trapezedev/configure/dist/util/cli.js:31:13)
[17:47:10]: ▸ npm ERR! Lifecycle script `appflow:build` failed with error:
[17:47:10]: ▸ npm ERR! Error: command failed
[17:47:10]: ▸ npm ERR!   in workspace: oeh@3.0.0
[17:47:10]: ▸ npm ERR!   at location: /builds/NYPL-Simplified/circulation-patron-web/apps/oeh

[mlynch]

Hi, have you filed a ticket with Appflow support? They have some recommendations for handling the location of java in the environment

[kristojorg]

I have not, but will do that now. It appears that trapeze is for some reason using the Java 8 that is installed instead of the Java 11

[mlynch]

Sounds great. Right now the resolution for Java is that it will first use the one in your path if that's available, or it will use the one at JAVA_HOME. So you can try setting JAVA_HOME but support will be able to help with the right paths/etc.

https://github.com/ionic-team/trapeze/blob/main/packages/project/src/android/gradle-file.ts#L507