diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt
index c7f74fa0a2a..da8881921f0 100644
--- a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt
@@ -37,7 +37,7 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
             valueDescription = "<version>",
             description = "Provide source compatibility with specified language version"
     )
-    var languageVersion: String? = null
+    var languageVersion: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.LanguageVersions::class)
     @Argument(
@@ -45,22 +45,22 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
             valueDescription = "<version>",
             description = "Allow to use declarations only from the specified version of bundled libraries"
     )
-    var apiVersion: String? = null
+    var apiVersion: String? by FreezableVar(null)
 
     @Argument(
             value = "-kotlin-home",
             valueDescription = "<path>",
             description = "Path to Kotlin compiler home directory, used for runtime libraries discovery"
     )
-    var kotlinHome: String? = null
+    var kotlinHome: String? by FreezableVar(null)
 
     @Argument(value = "-P", valueDescription = PLUGIN_OPTION_FORMAT, description = "Pass an option to a plugin")
-    var pluginOptions: Array<String>? = null
+    var pluginOptions: Array<String>? by FreezableVar(null)
 
     // Advanced options
 
     @Argument(value = "-Xno-inline", description = "Disable method inlining")
-    var noInline: Boolean = false
+    var noInline: Boolean by FreezableVar(false)
 
     // TODO Remove in 1.0
     @Argument(
@@ -68,42 +68,42 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
             valueDescription = "<count>",
             description = "Repeat compilation (for performance analysis)"
     )
-    var repeat: String? = null
+    var repeat: String? by FreezableVar(null)
 
     @Argument(
             value = "-Xskip-metadata-version-check",
             description = "Load classes with bad metadata version anyway (incl. pre-release classes)"
     )
-    var skipMetadataVersionCheck: Boolean = false
+    var skipMetadataVersionCheck: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xallow-kotlin-package", description = "Allow compiling code in package 'kotlin'")
-    var allowKotlinPackage: Boolean = false
+    var allowKotlinPackage: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xreport-output-files", description = "Report source to output files mapping")
-    var reportOutputFiles: Boolean = false
+    var reportOutputFiles: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xplugin", valueDescription = "<path>", description = "Load plugins from the given classpath")
-    var pluginClasspaths: Array<String>? = null
+    var pluginClasspaths: Array<String>? by FreezableVar(null)
 
     @Argument(value = "-Xmulti-platform", description = "Enable experimental language support for multi-platform projects")
-    var multiPlatform: Boolean = false
+    var multiPlatform: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xno-check-impl", description = "Do not check presence of 'impl' modifier in multi-platform projects")
-    var noCheckImpl: Boolean = false
+    var noCheckImpl: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-Xintellij-plugin-root",
             valueDescription = "<path>",
             description = "Path to the kotlin-compiler.jar or directory where IntelliJ configuration files can be found"
     )
-    var intellijPluginRoot: String? = null
+    var intellijPluginRoot: String? by FreezableVar(null)
 
     @Argument(
             value = "-Xcoroutines",
             valueDescription = "{enable|warn|error}",
             description = "Enable coroutines or report warnings or errors on declarations and use sites of 'suspend' modifier"
     )
-    var coroutinesState: String? = WARN
+    var coroutinesState: String? by FreezableVar(WARN)
 
     open fun configureAnalysisFlags(): MutableMap<AnalysisFlag<*>, Any> {
         return HashMap<AnalysisFlag<*>, Any>().apply {
diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonToolArguments.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonToolArguments.kt
index a12c000f712..b32e0ea4b9f 100644
--- a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonToolArguments.kt
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonToolArguments.kt
@@ -19,7 +19,7 @@ package org.jetbrains.kotlin.cli.common.arguments
 import org.jetbrains.kotlin.utils.SmartList
 import java.io.Serializable
 
-abstract class CommonToolArguments : Serializable {
+abstract class CommonToolArguments : Freezable(), Serializable {
     companion object {
         @JvmStatic private val serialVersionUID = 0L
     }
@@ -29,19 +29,19 @@ abstract class CommonToolArguments : Serializable {
     @Transient var errors: ArgumentParseErrors = ArgumentParseErrors()
 
     @Argument(value = "-help", shortName = "-h", description = "Print a synopsis of standard options")
-    var help: Boolean = false
+    var help: Boolean by FreezableVar(false)
 
     @Argument(value = "-X", description = "Print a synopsis of advanced options")
-    var extraHelp: Boolean = false
+    var extraHelp: Boolean by FreezableVar(false)
 
     @Argument(value = "-version", description = "Display compiler version")
-    var version: Boolean = false
+    var version: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-verbose", description = "Enable verbose logging output")
-    var verbose: Boolean = false
+    var verbose: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-nowarn", description = "Generate no warnings")
-    var suppressWarnings: Boolean = false
+    var suppressWarnings: Boolean by FreezableVar(false)
 }
diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/Freezable.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/Freezable.kt
new file mode 100644
index 00000000000..51786ddbd08
--- /dev/null
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/Freezable.kt
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.cli.common.arguments
+
+import kotlin.properties.ReadWriteProperty
+import kotlin.reflect.KProperty
+
+abstract class Freezable {
+    protected inner class FreezableVar<T>(private var value: T) : ReadWriteProperty<Any, T> {
+        override fun getValue(thisRef: Any, property: KProperty<*>) = value
+
+        override fun setValue(thisRef: Any, property: KProperty<*>, value: T) {
+            if (frozen) throw IllegalStateException("Instance of ${this::class} is frozen")
+            this.value = value
+        }
+    }
+
+    private var frozen: Boolean = false
+
+    private fun getInstanceWithFreezeStatus(value: Boolean) = if (value == frozen) this else copyBean(this).apply { frozen = value }
+
+    fun frozen() = getInstanceWithFreezeStatus(true)
+    fun unfrozen() = getInstanceWithFreezeStatus(false)
+}
\ No newline at end of file
diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt
index 7e96346cf86..7301fde3fe2 100644
--- a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt
@@ -26,33 +26,33 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
 
     @GradleOption(DefaultValues.StringNullDefault::class)
     @Argument(value = "-output", valueDescription = "<path>", description = "Output file path")
-    var outputFile: String? = null
+    var outputFile: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.BooleanTrueDefault::class)
     @Argument(value = "-no-stdlib", description = "Don't use bundled Kotlin stdlib")
-    var noStdlib: Boolean = false
+    var noStdlib: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-libraries",
             valueDescription = "<path>",
             description = "Paths to Kotlin libraries with .meta.js and .kjsm files, separated by system path separator"
     )
-    var libraries: String? = null
+    var libraries: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-source-map", description = "Generate source map")
-    var sourceMap: Boolean = false
+    var sourceMap: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.StringNullDefault::class)
     @Argument(value = "-source-map-prefix", description = "Prefix for paths in a source map")
-    var sourceMapPrefix: String? = null
+    var sourceMapPrefix: String? by FreezableVar(null)
 
     @Argument(
             value = "-source-map-source-roots",
             valueDescription = "<path>",
             description = "Base directories which are used to calculate relative paths to source files in source map"
     )
-    var sourceMapSourceRoots: String? = null
+    var sourceMapSourceRoots: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.JsSourceMapContentModes::class)
     @Argument(
@@ -60,15 +60,15 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
             valueDescription = "{ always, never, inlining }",
             description = "Embed source files into source map"
     )
-    var sourceMapEmbedSources: String? = null
+    var sourceMapEmbedSources: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.BooleanTrueDefault::class)
     @Argument(value = "-meta-info", description = "Generate .meta.js and .kjsm files with metadata. Use to create a library")
-    var metaInfo: Boolean = false
+    var metaInfo: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.JsEcmaVersions::class)
     @Argument(value = "-target", valueDescription = "{ v5 }", description = "Generate JS files for specific ECMA version")
-    var target: String? = null
+    var target: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.JsModuleKinds::class)
     @Argument(
@@ -76,40 +76,40 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
             valueDescription = "{ plain, amd, commonjs, umd }",
             description = "Kind of a module generated by compiler"
     )
-    var moduleKind: String? = K2JsArgumentConstants.MODULE_PLAIN
+    var moduleKind: String? by FreezableVar(K2JsArgumentConstants.MODULE_PLAIN)
 
     @GradleOption(DefaultValues.JsMain::class)
     @Argument(value = "-main", valueDescription = "{$CALL,$NO_CALL}", description = "Whether a main function should be called")
-    var main: String? = null
+    var main: String? by FreezableVar(null)
 
     @Argument(
             value = "-output-prefix",
             valueDescription = "<path>",
             description = "Path to file which will be added to the beginning of output file"
     )
-    var outputPrefix: String? = null
+    var outputPrefix: String? by FreezableVar(null)
 
     @Argument(
             value = "-output-postfix",
             valueDescription = "<path>",
             description = "Path to file which will be added to the end of output file"
     )
-    var outputPostfix: String? = null
+    var outputPostfix: String? by FreezableVar(null)
 
     // Advanced options
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-Xtyped-arrays", description = "Translate primitive arrays to JS typed arrays")
-    var typedArrays: Boolean = false
+    var typedArrays: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-Xfriend-modules-disabled", description = "Disable internal declaration export")
-    var friendModulesDisabled: Boolean = false
+    var friendModulesDisabled: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-Xfriend-modules",
             valueDescription = "<path>",
             description = "Paths to friend modules"
     )
-    var friendModules: String? = null
+    var friendModules: String? by FreezableVar(null)
 }
diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSDceArguments.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSDceArguments.kt
index 285aa29a4cc..53ca5a52444 100644
--- a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSDceArguments.kt
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSDceArguments.kt
@@ -26,18 +26,18 @@ class K2JSDceArguments : CommonToolArguments() {
             valueDescription = "<path>",
             description = "Output directory"
     )
-    var outputDirectory: String? = null
+    var outputDirectory: String? by FreezableVar(null)
 
     @Argument(
             value = "-keep",
             valueDescription = "<fully.qualified.name[,]>",
             description = "List of fully-qualified names of declarations that shouldn't be eliminated"
     )
-    var declarationsToKeep: Array<String>? = null
+    var declarationsToKeep: Array<String>? by FreezableVar(null)
 
     @Argument(
             value = "-Xprint-reachability-info",
             description = "Print declarations marked as reachable"
     )
-    var printReachabilityInfo: Boolean = false
+    var printReachabilityInfo: Boolean by FreezableVar(false)
 }
diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt
index 07bf9bcdcb8..c1db8b3d5c7 100644
--- a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt
@@ -26,14 +26,14 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
     }
 
     @Argument(value = "-d", valueDescription = "<directory|jar>", description = "Destination for generated class files")
-    var destination: String? = null
+    var destination: String? by FreezableVar(null)
 
     @Argument(value = "-classpath", shortName = "-cp", valueDescription = "<path>", description = "Paths where to find user class files")
-    var classpath: String? = null
+    var classpath: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-include-runtime", description = "Include Kotlin runtime in to resulting .jar")
-    var includeRuntime: Boolean = false
+    var includeRuntime: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.StringNullDefault::class)
     @Argument(
@@ -41,32 +41,32 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
             valueDescription = "<path>",
             description = "Path to JDK home directory to include into classpath, if differs from default JAVA_HOME"
     )
-    var jdkHome: String? = null
+    var jdkHome: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-no-jdk", description = "Don't include Java runtime into classpath")
-    var noJdk: Boolean = false
+    var noJdk: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.BooleanTrueDefault::class)
     @Argument(value = "-no-stdlib", description = "Don't include Kotlin runtime into classpath")
-    var noStdlib: Boolean = false
+    var noStdlib: Boolean by FreezableVar(false)
 
     @GradleOption(DefaultValues.BooleanTrueDefault::class)
     @Argument(value = "-no-reflect", description = "Don't include Kotlin reflection implementation into classpath")
-    var noReflect: Boolean = false
+    var noReflect: Boolean by FreezableVar(false)
 
     @Argument(value = "-script", description = "Evaluate the script file")
-    var script: Boolean = false
+    var script: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-script-templates",
             valueDescription = "<fully qualified class name[,]>",
             description = "Script definition template classes"
     )
-    var scriptTemplates: Array<String>? = null
+    var scriptTemplates: Array<String>? by FreezableVar(null)
 
     @Argument(value = "-module-name", description = "Module name")
-    var moduleName: String? = null
+    var moduleName: String? by FreezableVar(null)
 
     @GradleOption(DefaultValues.JvmTargetVersions::class)
     @Argument(
@@ -74,16 +74,16 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
             valueDescription = "<version>",
             description = "Target version of the generated JVM bytecode (1.6 or 1.8), default is 1.6"
     )
-    var jvmTarget: String? = JvmTarget.DEFAULT.description
+    var jvmTarget: String? by FreezableVar(JvmTarget.DEFAULT.description)
 
     @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-java-parameters", description = "Generate metadata for Java 1.8 reflection on method parameters")
-    var javaParameters: Boolean = false
+    var javaParameters: Boolean by FreezableVar(false)
 
     // Advanced options
 
     @Argument(value = "-Xmodule-path", valueDescription = "<path>", description = "Paths where to find Java 9+ modules")
-    var javaModulePath: String? = null
+    var javaModulePath: String? by FreezableVar(null)
 
     @Argument(
             value = "-Xadd-modules",
@@ -91,78 +91,78 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
             description = "Root modules to resolve in addition to the initial modules,\n" +
                           "or all modules on the module path if <module> is ALL-MODULE-PATH"
     )
-    var additionalJavaModules: Array<String>? = null
+    var additionalJavaModules: Array<String>? by FreezableVar(null)
 
     @Argument(value = "-Xno-call-assertions", description = "Don't generate not-null assertion after each invocation of method returning not-null")
-    var noCallAssertions: Boolean = false
+    var noCallAssertions: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xno-param-assertions", description = "Don't generate not-null assertions on parameters of methods accessible from Java")
-    var noParamAssertions: Boolean = false
+    var noParamAssertions: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xno-optimize", description = "Disable optimizations")
-    var noOptimize: Boolean = false
+    var noOptimize: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xreport-perf", description = "Report detailed performance statistics")
-    var reportPerf: Boolean = false
+    var reportPerf: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xbuild-file", deprecatedName = "-module", valueDescription = "<path>", description = "Path to the .xml build file to compile")
-    var buildFile: String? = null
+    var buildFile: String? by FreezableVar(null)
 
     @Argument(value = "-Xmultifile-parts-inherit", description = "Compile multifile classes as a hierarchy of parts and facade")
-    var inheritMultifileParts: Boolean = false
+    var inheritMultifileParts: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xskip-runtime-version-check", description = "Allow Kotlin runtime libraries of incompatible versions in the classpath")
-    var skipRuntimeVersionCheck: Boolean = false
+    var skipRuntimeVersionCheck: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-Xuse-old-class-files-reading",
             description = "Use old class files reading implementation " +
                           "(may slow down the build and should be used in case of problems with the new implementation)"
     )
-    var useOldClassFilesReading: Boolean = false
+    var useOldClassFilesReading: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-Xdump-declarations-to",
             valueDescription = "<path>",
             description = "Path to JSON file to dump Java to Kotlin declaration mappings"
     )
-    var declarationsOutputPath: String? = null
+    var declarationsOutputPath: String? by FreezableVar(null)
 
     @Argument(value = "-Xsingle-module", description = "Combine modules for source files and binary dependencies into a single module")
-    var singleModule: Boolean = false
+    var singleModule: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xadd-compiler-builtins", description = "Add definitions of built-in declarations to the compilation classpath (useful with -no-stdlib)")
-    var addCompilerBuiltIns: Boolean = false
+    var addCompilerBuiltIns: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xload-builtins-from-dependencies", description = "Load definitions of built-in declarations from module dependencies, instead of from the compiler")
-    var loadBuiltInsFromDependencies: Boolean = false
+    var loadBuiltInsFromDependencies: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-Xscript-resolver-environment",
             valueDescription = "<key=value[,]>",
             description = "Script resolver environment in key-value pairs (the value could be quoted and escaped)"
     )
-    var scriptResolverEnvironment: Array<String>? = null
+    var scriptResolverEnvironment: Array<String>? by FreezableVar(null)
 
     // Javac options
     @Argument(value = "-Xuse-javac", description = "Use javac for Java source and class files analysis")
-    var useJavac: Boolean = false
+    var useJavac: Boolean by FreezableVar(false)
 
     @Argument(
             value = "-Xjavac-arguments",
             valueDescription = "<option[,]>",
             description = "Java compiler arguments")
-    var javacArguments: Array<String>? = null
+    var javacArguments: Array<String>? by FreezableVar(null)
 
     @Argument(
             value = "-Xjsr305-annotations",
             valueDescription = "{ignore|enable}",
             description = "Specify global behavior for JSR-305 nullability annotations: ignore, or treat as other supported nullability annotations"
     )
-    var jsr305GlobalReportLevel: String? = Jsr305State.DEFAULT.description
+    var jsr305GlobalReportLevel: String? by FreezableVar(Jsr305State.DEFAULT.description)
 
     // Paths to output directories for friend modules.
-    var friendPaths: Array<String>? = null
+    var friendPaths: Array<String>? by FreezableVar(null)
 
     override fun configureAnalysisFlags(): MutableMap<AnalysisFlag<*>, Any> {
         val result = super.configureAnalysisFlags()
diff --git a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2MetadataCompilerArguments.kt b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2MetadataCompilerArguments.kt
index 19d0c43e6b2..6838cb065b5 100644
--- a/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2MetadataCompilerArguments.kt
+++ b/compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2MetadataCompilerArguments.kt
@@ -22,7 +22,7 @@ class K2MetadataCompilerArguments : CommonCompilerArguments() {
     }
 
     @Argument(value = "-d", valueDescription = "<directory|jar>", description = "Destination for generated .kotlin_metadata files")
-    var destination: String? = null
+    var destination: String? by FreezableVar(null)
 
     @Argument(
             value = "-classpath",
@@ -30,5 +30,5 @@ class K2MetadataCompilerArguments : CommonCompilerArguments() {
             valueDescription = "<path>",
             description = "Paths where to find library .kotlin_metadata files"
     )
-    var classpath: String? = null
+    var classpath: String? by FreezableVar(null)
 }
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/compiler/configuration/BaseKotlinCompilerSettings.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/compiler/configuration/BaseKotlinCompilerSettings.kt
index 3b7cf2e7bc6..08a7d9b9f0c 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/compiler/configuration/BaseKotlinCompilerSettings.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/compiler/configuration/BaseKotlinCompilerSettings.kt
@@ -25,19 +25,24 @@ import org.jetbrains.kotlin.cli.common.arguments.*
 import org.jetbrains.kotlin.config.SettingConstants
 import kotlin.reflect.KClass
 
-abstract class BaseKotlinCompilerSettings<T : Any> protected constructor() : PersistentStateComponent<Element>, Cloneable {
-    @Suppress("LeakingThis")
-    private var _settings: T = createSettings()
+abstract class BaseKotlinCompilerSettings<T : Freezable> protected constructor() : PersistentStateComponent<Element>, Cloneable {
+    @Suppress("LeakingThis", "UNCHECKED_CAST")
+    private var _settings: T = createSettings().frozen() as T
+        private set(value) {
+            field = value.frozen() as T
+        }
 
     var settings: T
-        get() = copyBean(_settings)
+        get() = _settings
         set(value) {
             validateNewSettings(value)
-            _settings = copyBean(value)
+            @Suppress("UNCHECKED_CAST")
+            _settings = value
         }
 
     fun update(changer: T.() -> Unit) {
-        settings = settings.apply { changer() }
+        @Suppress("UNCHECKED_CAST")
+        settings = (settings.unfrozen() as T).apply { changer() }
     }
 
     protected fun validateInheritedFieldsUnchanged(settings: T) {
diff --git a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/CompilerSettings.kt b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/CompilerSettings.kt
index a25232cf9d9..89abfd326c0 100644
--- a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/CompilerSettings.kt
+++ b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/CompilerSettings.kt
@@ -17,13 +17,14 @@
 package org.jetbrains.kotlin.config
 
 import com.intellij.openapi.util.text.StringUtil
+import org.jetbrains.kotlin.cli.common.arguments.Freezable
 
-class CompilerSettings {
-    @JvmField var additionalArguments: String = DEFAULT_ADDITIONAL_ARGUMENTS
-    @JvmField var scriptTemplates: String = ""
-    @JvmField var scriptTemplatesClasspath: String = ""
-    @JvmField var copyJsLibraryFiles: Boolean = true
-    @JvmField var outputDirectoryForJsLibraryFiles: String = DEFAULT_OUTPUT_DIRECTORY
+class CompilerSettings : Freezable() {
+    var additionalArguments: String by FreezableVar(DEFAULT_ADDITIONAL_ARGUMENTS)
+    var scriptTemplates: String by FreezableVar("")
+    var scriptTemplatesClasspath: String by FreezableVar("")
+    var copyJsLibraryFiles: Boolean by FreezableVar(true)
+    var outputDirectoryForJsLibraryFiles: String by FreezableVar(DEFAULT_OUTPUT_DIRECTORY)
 
     companion object {
         val DEFAULT_ADDITIONAL_ARGUMENTS = "-version"
diff --git a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt
index 0cb3d2ef86e..a63e6412787 100644
--- a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt
+++ b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt
@@ -84,7 +84,13 @@ class KotlinFacetSettings {
     var useProjectSettings: Boolean = true
 
     var compilerArguments: CommonCompilerArguments? = null
+        set(value) {
+            field = value?.unfrozen() as CommonCompilerArguments?
+        }
     var compilerSettings: CompilerSettings? = null
+        set(value) {
+            field = value?.unfrozen() as CompilerSettings?
+        }
 
     var languageLevel: LanguageVersion?
         get() = compilerArguments?.languageVersion?.let { LanguageVersion.fromFullVersionString(it) }
diff --git a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/facetSerialization.kt b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/facetSerialization.kt
index b542815b054..d6d4cd90c22 100644
--- a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/facetSerialization.kt
+++ b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/facetSerialization.kt
@@ -196,7 +196,7 @@ private fun Class<*>.computeNormalPropertyOrdering(): Map<String, Int> {
 private val allNormalOrderings = HashMap<Class<*>, Map<String, Int>>()
 
 private val Class<*>.normalOrdering
-    get() = allNormalOrderings.getOrPut(this) { computeNormalPropertyOrdering() }
+    get() = synchronized(allNormalOrderings) { allNormalOrderings.getOrPut(this) { computeNormalPropertyOrdering() } }
 
 // Replacing fields with delegated properties leads to unexpected reordering of entries in facet configuration XML
 // It happens due to XmlSerializer using different orderings for field- and method-based accessors
diff --git a/idea/idea-maven/test/org/jetbrains/kotlin/idea/maven/KotlinMavenImporterTest.kt b/idea/idea-maven/test/org/jetbrains/kotlin/idea/maven/KotlinMavenImporterTest.kt
index 91bad0dad19..3baeb7cc179 100644
--- a/idea/idea-maven/test/org/jetbrains/kotlin/idea/maven/KotlinMavenImporterTest.kt
+++ b/idea/idea-maven/test/org/jetbrains/kotlin/idea/maven/KotlinMavenImporterTest.kt
@@ -588,7 +588,7 @@ class KotlinMavenImporterTest : MavenImportingTestCase() {
                 Assert.assertEquals(true, sourceMap)
                 Assert.assertEquals("commonjs", moduleKind)
             }
-            Assert.assertEquals("-output test.js -meta-info -Xmulti-platform",
+            Assert.assertEquals("-meta-info -output test.js -Xmulti-platform",
                                 compilerSettings!!.additionalArguments)
         }
 
@@ -1645,7 +1645,7 @@ class KotlinMavenImporterTest : MavenImportingTestCase() {
             Assert.assertEquals("1.0", apiLevel!!.description)
             Assert.assertEquals("1.8", (compilerArguments as K2JVMCompilerArguments).jvmTarget)
             Assert.assertEquals(
-                    listOf("-kotlin-home", "temp2", "-java-parameters", "-Xdump-declarations-to=dumpDir"),
+                    listOf("-Xdump-declarations-to=dumpDir", "-java-parameters", "-kotlin-home", "temp2"),
                     compilerSettings!!.additionalArgumentsAsList
             )
         }
diff --git a/idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerConfigurableTab.java b/idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerConfigurableTab.java
index e10b7fa3ae3..b21ab3b400d 100644
--- a/idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerConfigurableTab.java
+++ b/idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerConfigurableTab.java
@@ -432,11 +432,11 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
                !getSelectedLanguageVersion().equals(getLanguageVersionOrDefault(commonCompilerArguments.getLanguageVersion())) ||
                !getSelectedAPIVersion().equals(getApiVersionOrDefault(commonCompilerArguments.getApiVersion())) ||
                !coroutineSupportComboBox.getSelectedItem().equals(CoroutineSupport.byCompilerArguments(commonCompilerArguments)) ||
-               ComparingUtils.isModified(additionalArgsOptionsField, compilerSettings.additionalArguments) ||
-               ComparingUtils.isModified(scriptTemplatesField, compilerSettings.scriptTemplates) ||
-               ComparingUtils.isModified(scriptTemplatesClasspathField, compilerSettings.scriptTemplatesClasspath) ||
-               ComparingUtils.isModified(copyRuntimeFilesCheckBox, compilerSettings.copyJsLibraryFiles) ||
-               isModified(outputDirectory, compilerSettings.outputDirectoryForJsLibraryFiles) ||
+               ComparingUtils.isModified(additionalArgsOptionsField, compilerSettings.getAdditionalArguments()) ||
+               ComparingUtils.isModified(scriptTemplatesField, compilerSettings.getScriptTemplates()) ||
+               ComparingUtils.isModified(scriptTemplatesClasspathField, compilerSettings.getScriptTemplatesClasspath()) ||
+               ComparingUtils.isModified(copyRuntimeFilesCheckBox, compilerSettings.getCopyJsLibraryFiles()) ||
+               isModified(outputDirectory, compilerSettings.getOutputDirectoryForJsLibraryFiles()) ||
 
                (compilerWorkspaceSettings != null &&
                 (ComparingUtils.isModified(enablePreciseIncrementalCheckBox, compilerWorkspaceSettings.getPreciseIncrementalEnabled()) ||
@@ -520,11 +520,11 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
                 break;
         }
 
-        compilerSettings.additionalArguments = additionalArgsOptionsField.getText();
-        compilerSettings.scriptTemplates = scriptTemplatesField.getText();
-        compilerSettings.scriptTemplatesClasspath = scriptTemplatesClasspathField.getText();
-        compilerSettings.copyJsLibraryFiles = copyRuntimeFilesCheckBox.isSelected();
-        compilerSettings.outputDirectoryForJsLibraryFiles = outputDirectory.getText();
+        compilerSettings.setAdditionalArguments(additionalArgsOptionsField.getText());
+        compilerSettings.setScriptTemplates(scriptTemplatesField.getText());
+        compilerSettings.setScriptTemplatesClasspath(scriptTemplatesClasspathField.getText());
+        compilerSettings.setCopyJsLibraryFiles(copyRuntimeFilesCheckBox.isSelected());
+        compilerSettings.setOutputDirectoryForJsLibraryFiles(outputDirectory.getText());
 
         if (compilerWorkspaceSettings != null) {
             compilerWorkspaceSettings.setPreciseIncrementalEnabled(enablePreciseIncrementalCheckBox.isSelected());
@@ -568,11 +568,11 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
         apiVersionComboBox.setSelectedItem(getApiVersionOrDefault(commonCompilerArguments.getApiVersion()));
         restrictAPIVersions(getSelectedLanguageVersion());
         coroutineSupportComboBox.setSelectedItem(CoroutineSupport.byCompilerArguments(commonCompilerArguments));
-        additionalArgsOptionsField.setText(compilerSettings.additionalArguments);
-        scriptTemplatesField.setText(compilerSettings.scriptTemplates);
-        scriptTemplatesClasspathField.setText(compilerSettings.scriptTemplatesClasspath);
-        copyRuntimeFilesCheckBox.setSelected(compilerSettings.copyJsLibraryFiles);
-        outputDirectory.setText(compilerSettings.outputDirectoryForJsLibraryFiles);
+        additionalArgsOptionsField.setText(compilerSettings.getAdditionalArguments());
+        scriptTemplatesField.setText(compilerSettings.getScriptTemplates());
+        scriptTemplatesClasspathField.setText(compilerSettings.getScriptTemplatesClasspath());
+        copyRuntimeFilesCheckBox.setSelected(compilerSettings.getCopyJsLibraryFiles());
+        outputDirectory.setText(compilerSettings.getOutputDirectoryForJsLibraryFiles());
 
         if (compilerWorkspaceSettings != null) {
             enablePreciseIncrementalCheckBox.setSelected(compilerWorkspaceSettings.getPreciseIncrementalEnabled());
diff --git a/idea/tests/org/jetbrains/kotlin/idea/configuration/ConfigureKotlinTest.java b/idea/tests/org/jetbrains/kotlin/idea/configuration/ConfigureKotlinTest.java
index d198f277383..1672f2469c9 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/configuration/ConfigureKotlinTest.java
+++ b/idea/tests/org/jetbrains/kotlin/idea/configuration/ConfigureKotlinTest.java
@@ -173,7 +173,7 @@ public class ConfigureKotlinTest extends AbstractConfigureKotlinTest {
         assertEquals("1.0", arguments.getApiVersion());
         assertEquals(LanguageFeature.State.ENABLED_WITH_WARNING, CoroutineSupport.byCompilerArguments(arguments));
         assertEquals("1.7", arguments.getJvmTarget());
-        assertEquals("-version -Xallow-kotlin-package -Xskip-metadata-version-check", settings.getCompilerSettings().additionalArguments);
+        assertEquals("-version -Xallow-kotlin-package -Xskip-metadata-version-check", settings.getCompilerSettings().getAdditionalArguments());
     }
 
     @SuppressWarnings("ConstantConditions")
@@ -188,7 +188,7 @@ public class ConfigureKotlinTest extends AbstractConfigureKotlinTest {
         assertEquals("1.0", arguments.getApiVersion());
         assertEquals(LanguageFeature.State.ENABLED_WITH_WARNING, CoroutineSupport.byCompilerArguments(arguments));
         assertEquals("amd", arguments.getModuleKind());
-        assertEquals("-version -meta-info", settings.getCompilerSettings().additionalArguments);
+        assertEquals("-version -meta-info", settings.getCompilerSettings().getAdditionalArguments());
     }
 
     @SuppressWarnings("ConstantConditions")
@@ -203,7 +203,7 @@ public class ConfigureKotlinTest extends AbstractConfigureKotlinTest {
         assertEquals("1.0", arguments.getApiVersion());
         assertEquals(LanguageFeature.State.ENABLED, CoroutineSupport.byCompilerArguments(arguments));
         assertEquals("1.7", arguments.getJvmTarget());
-        assertEquals("-version -Xallow-kotlin-package -Xskip-metadata-version-check", settings.getCompilerSettings().additionalArguments);
+        assertEquals("-version -Xallow-kotlin-package -Xskip-metadata-version-check", settings.getCompilerSettings().getAdditionalArguments());
     }
 
     @SuppressWarnings("ConstantConditions")
@@ -218,7 +218,7 @@ public class ConfigureKotlinTest extends AbstractConfigureKotlinTest {
         assertEquals("1.0", arguments.getApiVersion());
         assertEquals(LanguageFeature.State.ENABLED_WITH_ERROR, CoroutineSupport.byCompilerArguments(arguments));
         assertEquals("amd", arguments.getModuleKind());
-        assertEquals("-version -meta-info", settings.getCompilerSettings().additionalArguments);
+        assertEquals("-version -meta-info", settings.getCompilerSettings().getAdditionalArguments());
     }
 
     @SuppressWarnings("ConstantConditions")
@@ -233,7 +233,7 @@ public class ConfigureKotlinTest extends AbstractConfigureKotlinTest {
         assertEquals("1.0", arguments.getApiVersion());
         assertEquals(LanguageFeature.State.ENABLED, CoroutineSupport.byCompilerArguments(arguments));
         assertEquals("1.7", arguments.getJvmTarget());
-        assertEquals("-version -Xallow-kotlin-package -Xskip-metadata-version-check", settings.getCompilerSettings().additionalArguments);
+        assertEquals("-version -Xallow-kotlin-package -Xskip-metadata-version-check", settings.getCompilerSettings().getAdditionalArguments());
     }
 
     private void configureFacetAndCheckJvm(JvmTarget jvmTarget) {