Backport to 1.20.6: Increase memory used for forked compiler (#3445)

Co-authored-by: sciwhiz12 <[email protected]>

gradle.properties

@@ -1,6 +1,7 @@
 # Sets default memory used for gradle commands. Can be overridden by user or command line properties.
-# This is required to provide enough memory for the Minecraft decompilation process.
-org.gradle.jvmargs=-Xmx3G
+# This is required to provide enough memory for recompilation
+# (see also projects/neoforged/build.gradle, where the compile tasks is set to have enough memory when forked)
+org.gradle.jvmargs=-Xmx2G
 org.gradle.daemon=true
 org.gradle.parallel=true
 org.gradle.caching=true

projects/neoforge/build.gradle

@@ -233,6 +233,11 @@ userdevProfile {
     additionalTestDependencyArtifactCoordinate "net.neoforged:testframework:${project.version}"
 }
 
+tasks.withType(JavaCompile.class).configureEach {
+    // Increase memory used during compilation, to avoid OutOfMemoryErrors
+    options.forkOptions.memoryMaximumSize = '2g'
+}
+
 tasks.withType(Javadoc.class).configureEach {
     options.tags = [
             'apiNote:a:<em>API Note:</em>',