diff --git a/jps/jps-plugin/src/org/jetbrains/kotlin/jps/build/KotlinBuilder.kt b/jps/jps-plugin/src/org/jetbrains/kotlin/jps/build/KotlinBuilder.kt
index e7d99df6db9..5aceafc6d9e 100644
--- a/jps/jps-plugin/src/org/jetbrains/kotlin/jps/build/KotlinBuilder.kt
+++ b/jps/jps-plugin/src/org/jetbrains/kotlin/jps/build/KotlinBuilder.kt
@@ -87,6 +87,7 @@ public class KotlinBuilder : ModuleLevelBuilder(BuilderCategory.SOURCE_PROCESSOR
     override fun getCompilableFileExtensions() = arrayListOf("kt")
 
     override fun buildStarted(context: CompileContext) {
+        LOG.debug("==========================================")
         LOG.info("is Kotlin incremental compilation enabled: ${IncrementalCompilation.isEnabled()}")
 
         val historyLabel = context.getBuilderParameter("history label")
@@ -101,6 +102,7 @@ public class KotlinBuilder : ModuleLevelBuilder(BuilderCategory.SOURCE_PROCESSOR
             dirtyFilesHolder: DirtyFilesHolder<JavaSourceRootDescriptor, ModuleBuildTarget>,
             outputConsumer: ModuleLevelBuilder.OutputConsumer
     ): ModuleLevelBuilder.ExitCode {
+        LOG.debug("------------------------------------------")
         val messageCollector = MessageCollectorAdapter(context)
 
         try {
@@ -213,7 +215,9 @@ public class KotlinBuilder : ModuleLevelBuilder(BuilderCategory.SOURCE_PROCESSOR
             copyJsLibraryFilesIfNeeded(chunk, project)
         }
 
-        if (!IncrementalCompilation.isEnabled()) return OK
+        if (!IncrementalCompilation.isEnabled()) {
+            return OK
+        }
 
         val caches = filesToCompile.keySet().map { incrementalCaches[it]!! }
         val marker = ChangesProcessor(context, chunk, allCompiledFiles, caches)
diff --git a/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/build.log b/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/build.log
index 1b7e8ed2b89..0a36e429697 100644
--- a/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/build.log
+++ b/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/build.log
@@ -7,8 +7,16 @@ Compiling files:
 module1/src/module1_const.kt
 End of files
 Cleaning output files:
+out/production/module1/META-INF/module1.kotlin_module
+out/production/module1/test/Module1_constKt.class
+out/production/module1/test/TestPackage.class
+End of files
+Compiling files:
+module1/src/module1_const.kt
+End of files
+Cleaning output files:
 out/production/module2/usage/Usage.class
 End of files
 Compiling files:
 module2/src/module2_usage.kt
-End of files
\ No newline at end of file
+End of files
diff --git a/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt b/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt
index e79d6d05129..3b7db43d11b 100644
--- a/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt
+++ b/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt
@@ -1,3 +1,3 @@
 package test
 
-public val CONST: String = "BF"
+public const val CONST: String = "BF"
diff --git a/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt.new b/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt.new
index d6250846ebf..06509478371 100644
--- a/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt.new
+++ b/jps/jps-plugin/testData/incremental/multiModule/constantValueChanged/module1_const.kt.new
@@ -1,3 +1,3 @@
 package test
 
-public val CONST: String = "Ae"
+public const val CONST: String = "Ae"
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/build.log b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/build.log
index 95a68077542..d7f5b678069 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/build.log
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/build.log
@@ -17,8 +17,12 @@ Compiling files:
 src/const.kt
 End of files
 Cleaning output files:
+out/production/module/META-INF/module.kotlin_module
+out/production/module/test/ConstKt.class
+out/production/module/test/TestPackage.class
 out/production/module/test/Usage.class
 End of files
 Compiling files:
+src/const.kt
 src/usage.kt
-End of files
\ No newline at end of file
+End of files
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt
index d0d300c1312..73047748dac 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt
@@ -1,12 +1,12 @@
 package test
 
-val b: Byte = 100
-val s: Short = 20000
-val i: Int = 2000000
-val l: Long = 2000000000000L
-val f: Float = 3.14f
-val d: Double = 3.14
-val bb: Boolean = true
-val c: Char = '\u03c0' // pi symbol
+const val b: Byte = 100
+const val s: Short = 20000
+const val i: Int = 2000000
+const val l: Long = 2000000000000L
+const val f: Float = 3.14f
+const val d: Double = 3.14
+const val bb: Boolean = true
+const val c: Char = '\u03c0' // pi symbol
 
-val str: String = ":)"
+const val str: String = ":)"
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.1 b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.1
index 26796869ddc..9fe38e75928 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.1
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.1
@@ -1,12 +1,12 @@
 package test
 
-val b: Byte = 50 + 50
-val s: Short = 10000 + 10000
-val i: Int = 1000000 + 1000000
-val l: Long = 1000000000000L + 1000000000000L
-val f: Float = 0.0f + 3.14f
-val d: Double = 0.0 + 3.14
-val bb: Boolean = !false
-val c: Char = '\u03c0' // pi symbol
+const val b: Byte = 50 + 50
+const val s: Short = 10000 + 10000
+const val i: Int = 1000000 + 1000000
+const val l: Long = 1000000000000L + 1000000000000L
+const val f: Float = 0.0f + 3.14f
+const val d: Double = 0.0 + 3.14
+const val bb: Boolean = !false
+const val c: Char = '\u03c0' // pi symbol
 
-val str: String = ":)"
+const val str: String = ":)"
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.2 b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.2
index 668b4009dce..d0df4060261 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.2
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/allConstants/const.kt.new.2
@@ -1,12 +1,12 @@
 package test
 
-val b: Byte = 0
-val s: Short = 0
-val i: Int = 0
-val l: Long = 0
-val f: Float = 0.0f
-val d: Double = 0.0
-val bb: Boolean = false
-val c: Char = 'x'
+const val b: Byte = 0
+const val s: Short = 0
+const val i: Int = 0
+const val l: Long = 0
+const val f: Float = 0.0f
+const val d: Double = 0.0
+const val bb: Boolean = false
+const val c: Char = 'x'
 
-val str: String = ":("
+const val str: String = ":("
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt
index 4680ae2c26f..cd3256a7612 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt
@@ -3,6 +3,6 @@ package test
 class Klass {
     companion object {
         // Old and new constant values are different, but their hashes are the same
-        val CONST = "BF"
+        const val CONST = "BF"
     }
 }
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt.new b/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt.new
index e9ccf1ab8db..49b604cd74f 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt.new
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/classObjectConstantChanged/const.kt.new
@@ -3,6 +3,6 @@ package test
 class Klass {
     companion object {
         // Old and new constant values are different, but their hashes are the same
-        val CONST = "Ae"
+        const val CONST = "Ae"
     }
 }
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt
index 40bbe8de705..8bdd5ae5b5d 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt
@@ -1,9 +1,9 @@
 package test
 
-val CONST = "foo"
+const val CONST = "foo"
 
 class Klass {
     companion object {
-        val CONST = "bar"
+        const val CONST = "bar"
     }
 }
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt.new b/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt.new
index 40bbe8de705..8bdd5ae5b5d 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt.new
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/constantsUnchanged/const.kt.new
@@ -1,9 +1,9 @@
 package test
 
-val CONST = "foo"
+const val CONST = "foo"
 
 class Klass {
     companion object {
-        val CONST = "bar"
+        const val CONST = "bar"
     }
 }
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/fileWithConstantRemoved/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/fileWithConstantRemoved/const.kt
index 1572968f89f..c2cc75a6691 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/fileWithConstantRemoved/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/fileWithConstantRemoved/const.kt
@@ -1,3 +1,3 @@
 package test
 
-val CONST = "foo"
+const val CONST = "foo"
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt
index 13a01eb1ac1..18ba78875d7 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt
@@ -1,5 +1,5 @@
 package test
 
 object Object {
-    val CONST = "old"
+    const val CONST = "old"
 }
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt.new b/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt.new
index d604ca1244f..3c94cbcc28b 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt.new
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/objectConstantChanged/const.kt.new
@@ -1,5 +1,5 @@
 package test
 
 object Object {
-    val CONST = "new"
+    const val CONST = "new"
 }
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/build.log b/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/build.log
index ff943c45dd4..3e12fb327e1 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/build.log
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/build.log
@@ -7,8 +7,12 @@ Compiling files:
 src/const.kt
 End of files
 Cleaning output files:
+out/production/module/META-INF/module.kotlin_module
+out/production/module/test/ConstKt.class
+out/production/module/test/TestPackage.class
 out/production/module/test/Usage.class
 End of files
 Compiling files:
+src/const.kt
 src/usage.kt
-End of files
\ No newline at end of file
+End of files
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt
index 62b4a2d0b23..cbc9ae86717 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt
@@ -1,4 +1,4 @@
 package test
 
 // Old and new constant values are different, but their hashes are the same
-val CONST = "BF"
+const val CONST = "BF"
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt.new b/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt.new
index bf471bbe0da..5d4d205f5a1 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt.new
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt.new
@@ -1,4 +1,4 @@
 package test
 
 // Old and new constant values are different, but their hashes are the same
-val CONST = "Ae"
+const val CONST = "Ae"
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt b/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt
index 7f64be02734..9ab04e28aff 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt
@@ -1,11 +1,11 @@
 package test
 
-val CONST = "foo"
+const val CONST = "foo"
 
 class Klass {
     companion object {
         private val CHANGED = "old"
-        public val UNCHANGED = 100
+        const public val UNCHANGED = 100
     }
 }
 
diff --git a/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt.new b/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt.new
index 569acca03d0..83f620f0760 100644
--- a/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt.new
+++ b/jps/jps-plugin/testData/incremental/pureKotlin/privateConstantsChanged/const.kt.new
@@ -1,11 +1,11 @@
 package test
 
-val CONST = "foo"
+const val CONST = "foo"
 
 class Klass {
     companion object {
         private val CHANGED = "new"
-        public val UNCHANGED = 100
+        const public val UNCHANGED = 100
     }
 }