Always fork the java compiler

1 files changed, 6 insertions, 0 deletions

diff --git a/src/main/java/net/fabricmc/loom/configuration/CompileConfiguration.java b/src/main/java/net/fabricmc/loom/configuration/CompileConfiguration.java
index 8e75df82..fb35b975 100644
--- a/src/main/java/net/fabricmc/loom/configuration/CompileConfiguration.java
+++ b/src/main/java/net/fabricmc/loom/configuration/CompileConfiguration.java
@@ -30,6 +30,7 @@ import org.gradle.api.plugins.JavaPlugin;
 import org.gradle.api.plugins.JavaPluginConvention;
 import org.gradle.api.tasks.SourceSet;
 import org.gradle.api.tasks.bundling.AbstractArchiveTask;
+import org.gradle.api.tasks.compile.JavaCompile;
 import org.gradle.api.tasks.javadoc.Javadoc;
 
 import net.fabricmc.loom.LoomGradleExtension;
@@ -104,6 +105,11 @@ public final class CompileConfiguration {
 		Javadoc javadoc = (Javadoc) p.getTasks().getByName(JavaPlugin.JAVADOC_TASK_NAME);
 		javadoc.setClasspath(main.getOutput().plus(main.getCompileClasspath()));
 
+		p.getTasks().withType(JavaCompile.class).configureEach(compile -> {
+			// Fork the java compiler to ensure that it does not keep any files open.
+			compile.getOptions().setFork(true);
+		});
+
 		p.afterEvaluate(project -> {
 			LoomGradleExtension extension = project.getExtensions().getByType(LoomGradleExtension.class);