fix: Also respect linux and mac java location

xmcl-runtime/java/JavaService.ts

@@ -16,7 +16,7 @@ import { readdirIfPresent } from '../util/fs'
 import { requireString } from '../util/object'
 import { SafeFile, createSafeFile } from '../util/persistance'
 import { ensureClass, getJavaArch } from './detectJVMArch'
-import { getMojangJavaPaths, getOpenJdkPaths, getOrcaleJavaPaths } from './javaPaths'
+import { getJavaPathsLinux, getJavaPathsOSX, getMojangJavaPaths, getOpenJdkPaths, getOrcaleJavaPaths } from './javaPaths'
 
 @ExposeServiceKey(JavaServiceKey)
 export class JavaService extends StatefulService<JavaState> implements IJavaService {
@@ -210,6 +210,10 @@ export class JavaService extends StatefulService<JavaState> implements IJavaServ
           ...await getOrcaleJavaPaths(),
           ...await getOpenJdkPaths(),
         )
+      } else if (this.app.platform.os === 'linux') {
+        commonLocations.push(...await getJavaPathsLinux())
+      } else if (this.app.platform.os === 'osx') {
+        commonLocations.push(...await getJavaPathsOSX())
       }
       const javas = await scanLocalJava(commonLocations)
       const infos = await Promise.all(javas.map(async (j) => ({ ...j, valid: true, arch: await getJavaArch(this, j.path) })))

xmcl-runtime/java/javaPaths.ts

@@ -19,3 +19,13 @@ export async function getOpenJdkPaths() {
   const files = await readdir('C:\\Program Files\\AdoptOpenJDK').catch(() => [])
   return files.map(f => join('C:\\Program Files\\AdoptOpenJDK', f, 'bin', 'java.exe'))
 }
+
+export async function getJavaPathsLinux() {
+  const files = await readdir('/usr/lib/jvm').catch(() => [])
+  return files.map(f => join('/usr/lib/jvm', f, 'bin', 'java'))
+}
+
+export async function getJavaPathsOSX() {
+  const files = await readdir('/Library/Java/JavaVirtualMachines').catch(() => [])
+  return files.map(f => join('/Library/Java/JavaVirtualMachines', f, 'Contents', 'Home', 'bin', 'java'))
+}