diff --git a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/dsl/FileAssociation.kt b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/dsl/FileAssociation.kt
index 925b8988617..a9e2bbff22c 100644
--- a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/dsl/FileAssociation.kt
+++ b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/dsl/FileAssociation.kt
@@ -3,7 +3,7 @@ package org.jetbrains.compose.desktop.application.dsl
 import java.io.File
 import java.io.Serializable
 
-data class FileAssociation(
+internal data class FileAssociation(
     val mimeType: String,
     val extension: String,
     val description: String,
diff --git a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/InfoPlistBuilder.kt b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/InfoPlistBuilder.kt
index 8fd0f19ef04..aca1d8e8588 100644
--- a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/InfoPlistBuilder.kt
+++ b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/InfoPlistBuilder.kt
@@ -14,42 +14,37 @@ private fun indentForLevel(level: Int) = indent.repeat(level)
 
 internal class InfoPlistBuilder(private val extraPlistKeysRawXml: String? = null) {
     internal sealed class InfoPlistValue {
-        abstract fun toString(nestingLevel: Int): String
-        override fun toString(): String = toString(0)
+        abstract fun asPlistEntry(nestingLevel: Int): String
         data class InfoPlistListValue(val elements: List<InfoPlistValue>) : InfoPlistValue() {
-            override fun toString(nestingLevel: Int): String =
+            override fun asPlistEntry(nestingLevel: Int): String =
                 if (elements.isEmpty()) "${indentForLevel(nestingLevel)}<array/>"
                 else elements.joinToString(
                     separator = "\n",
                     prefix = "${indentForLevel(nestingLevel)}<array>\n",
                     postfix = "\n${indentForLevel(nestingLevel)}</array>"
                 ) {
-                    it.toString(nestingLevel + 1)
+                    it.asPlistEntry(nestingLevel + 1)
                 }
 
-            override fun toString(): String = super.toString()
-
             constructor(vararg elements: InfoPlistValue) : this(elements.asList())
         }
 
         data class InfoPlistMapValue(val elements: Map<InfoPlistKey, InfoPlistValue>) : InfoPlistValue() {
-            override fun toString(nestingLevel: Int): String =
+            override fun asPlistEntry(nestingLevel: Int): String =
                 if (elements.isEmpty()) "${indentForLevel(nestingLevel)}<dict/>"
                 else elements.entries.joinToString(
                     separator = "\n",
                     prefix = "${indentForLevel(nestingLevel)}<dict>\n",
                     postfix = "\n${indentForLevel(nestingLevel)}</dict>",
                 ) { (key, value) ->
-                    "${indentForLevel(nestingLevel + 1)}<key>${key.name}</key>\n${value.toString(nestingLevel + 1)}"
+                    "${indentForLevel(nestingLevel + 1)}<key>${key.name}</key>\n${value.asPlistEntry(nestingLevel + 1)}"
                 }
-            override fun toString() = super.toString()
 
             constructor(vararg elements: Pair<InfoPlistKey, InfoPlistValue>) : this(elements.toMap())
         }
 
         data class InfoPlistStringValue(val value: String) : InfoPlistValue() {
-            override fun toString(nestingLevel: Int): String = if (value.isEmpty()) "${indentForLevel(nestingLevel)}<string/>" else "${indentForLevel(nestingLevel)}<string>$value</string>"
-            override fun toString() = super.toString()
+            override fun asPlistEntry(nestingLevel: Int): String = if (value.isEmpty()) "${indentForLevel(nestingLevel)}<string/>" else "${indentForLevel(nestingLevel)}<string>$value</string>"
         }
     }
 
@@ -78,7 +73,7 @@ internal class InfoPlistBuilder(private val extraPlistKeysRawXml: String? = null
                 appendLine("${indentForLevel(1)}<dict>")
                 for ((k, v) in values) {
                     appendLine("${indentForLevel(2)}<key>${k.name}</key>")
-                    appendLine(v.toString(2))
+                    appendLine(v.asPlistEntry(2))
                 }
                 extraPlistKeysRawXml?.let { appendLine(it) }
                 appendLine("${indentForLevel(1)}</dict>")
diff --git a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/configureJvmApplication.kt b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/configureJvmApplication.kt
index b4af732fc75..83d51089ef6 100644
--- a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/configureJvmApplication.kt
+++ b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/internal/configureJvmApplication.kt
@@ -375,7 +375,7 @@ internal fun JvmApplicationContext.configurePlatformSettings(
                 packageTask.linuxRpmLicenseType.set(provider { linux.rpmLicenseType })
                 packageTask.iconFile.set(linux.iconFile.orElse(defaultResources.get { linuxIcon }))
                 packageTask.installationPath.set(linux.installationPath)
-                packageTask.fileAssociations.set(linux.fileAssociations)
+                packageTask.fileAssociations.set(provider { linux.fileAssociations })
             }
         }
         OS.Windows -> {
@@ -389,7 +389,7 @@ internal fun JvmApplicationContext.configurePlatformSettings(
                 packageTask.winUpgradeUuid.set(provider { win.upgradeUuid })
                 packageTask.iconFile.set(win.iconFile.orElse(defaultResources.get { windowsIcon }))
                 packageTask.installationPath.set(win.installationPath)
-                packageTask.fileAssociations.set(win.fileAssociations)
+                packageTask.fileAssociations.set(provider { win.fileAssociations })
             }
         }
         OS.MacOS -> {
@@ -416,7 +416,7 @@ internal fun JvmApplicationContext.configurePlatformSettings(
                 packageTask.nonValidatedMacSigningSettings = app.nativeDistributions.macOS.signing
                 packageTask.iconFile.set(mac.iconFile.orElse(defaultResources.get { macIcon }))
                 packageTask.installationPath.set(mac.installationPath)
-                packageTask.fileAssociations.set(mac.fileAssociations)
+                packageTask.fileAssociations.set(provider { mac.fileAssociations })
             }
         }
     }
diff --git a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/tasks/AbstractJPackageTask.kt b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/tasks/AbstractJPackageTask.kt
index 3a2e338453c..e342fb3ab4d 100644
--- a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/tasks/AbstractJPackageTask.kt
+++ b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/desktop/application/tasks/AbstractJPackageTask.kt
@@ -250,7 +250,7 @@ abstract class AbstractJPackageTask @Inject constructor(
 
     @get:Input
     @get:Optional
-    val fileAssociations: SetProperty<FileAssociation> = objects.setProperty(FileAssociation::class.java)
+    internal val fileAssociations: SetProperty<FileAssociation> = objects.setProperty(FileAssociation::class.java)
     
     private val iconMapping by lazy {
         val icons = fileAssociations.orNull.orEmpty().mapNotNull { it.iconFile }