javaVersion

crogoz · crogoz · commit ff5418204c12 · 2025-03-10T14:10:00.000+01:00
diff --git a/build.gradle b/build.gradle
@@ -51,9 +51,6 @@ subprojects {
     apply plugin: 'java-library'
     apply plugin: 'org.inferred.processors'
 
-    sourceCompatibility = JavaVersion.VERSION_11
-    targetCompatibility = JavaVersion.VERSION_11
-
     tasks.withType(Checkstyle).configureEach {
         enabled = false
     }
@@ -71,7 +68,7 @@ subprojects {
 }
 
 javaVersions {
-    libraryTarget = 21
+    libraryTarget = 17
     runtime = 21
 }
 
diff --git a/palantir-java-format-spi/build.gradle b/palantir-java-format-spi/build.gradle
@@ -11,3 +11,12 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter'
     testImplementation 'com.fasterxml.jackson.core:jackson-databind'
 }
+
+tasks.withType(JavaCompile).named('compileJava') {
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
+javaVersion {
+    target = 21
+}
diff --git a/palantir-java-format/build.gradle b/palantir-java-format/build.gradle
@@ -41,6 +41,15 @@ moduleJvmArgs {
             'jdk.compiler/com.sun.tools.javac.api')
 }
 
+tasks.withType(JavaCompile).named('compileJava') {
+    // By setting the source and target compatibility to 11, while still using a higher level
+    // JDK for compilation, we can compile against the AST classes we need to support >11 source
+    // features but still run on 11 JDKs (with the addition of checking the java version at runtime
+    // and dynamically loading the correct formatter implementation)
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
 // false positives due to org.junit.runners.* in the test cases
 tasks.named("checkJUnitDependencies") {
     enabled = false
@@ -51,3 +60,7 @@ tasks.named("test") {
     // https://junit.org/junit5/docs/current/user-guide/#writing-tests-parallel-execution
     systemProperty 'junit.jupiter.execution.parallel.mode.default', 'concurrent'
 }
+
+javaVersion {
+    target = 21
+}

Original file line number	Diff line number	Diff line change
`@@ -51,9 +51,6 @@ subprojects {`
`51`	`51`	`apply plugin: 'java-library'`
`52`	`52`	`apply plugin: 'org.inferred.processors'`
`53`	`53`
`54`		`- sourceCompatibility = JavaVersion.VERSION_11`
`55`		`- targetCompatibility = JavaVersion.VERSION_11`
`56`		`-`
`57`	`54`	`tasks.withType(Checkstyle).configureEach {`
`58`	`55`	`enabled = false`
`59`	`56`	`}`
`@@ -71,7 +68,7 @@ subprojects {`
`71`	`68`	`}`
`72`	`69`
`73`	`70`	`javaVersions {`
`74`		`- libraryTarget = 21`
	`71`	`+ libraryTarget = 17`
`75`	`72`	`runtime = 21`
`76`	`73`	`}`
`77`	`74`