diff --git a/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/command/CoroutineBuilder.kt b/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/command/CoroutineBuilder.kt
index d031e1b7d12..555a08c53c5 100644
--- a/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/command/CoroutineBuilder.kt
+++ b/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/command/CoroutineBuilder.kt
@@ -21,8 +21,6 @@ import org.jetbrains.kotlin.idea.debugger.coroutine.data.*
 import org.jetbrains.kotlin.idea.debugger.safeLineNumber
 import org.jetbrains.kotlin.idea.debugger.safeLocation
 import org.jetbrains.kotlin.idea.debugger.safeMethod
-import org.jetbrains.kotlin.idea.debugger.safeSignature
-
 
 class CoroutineBuilder(val suspendContext: XSuspendContext) {
     private val coroutineStackFrameProvider = CoroutineAsyncStackTraceProvider()
@@ -172,7 +170,7 @@ class CoroutineBuilder(val suspendContext: XSuspendContext) {
 
     private fun isInvokeSuspendNegativeLineMethodFrame(frame: StackFrameProxyImpl) =
         frame.safeLocation()?.safeMethod()?.name() == "invokeSuspend" &&
-                frame.safeLocation()?.safeMethod()?.safeSignature() ?: "" == "(Ljava/lang/Object;)Ljava/lang/Object;" &&
+                frame.safeLocation()?.safeMethod()?.signature() == "(Ljava/lang/Object;)Ljava/lang/Object;" &&
                 frame.safeLocation()?.safeLineNumber() ?: 0 < 0
 }
 
diff --git a/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/view/CoroutineViewDebugSessionListener.kt b/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/view/CoroutineViewDebugSessionListener.kt
index a552bc37411..d8e81999199 100644
--- a/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/view/CoroutineViewDebugSessionListener.kt
+++ b/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/view/CoroutineViewDebugSessionListener.kt
@@ -21,7 +21,6 @@ class CoroutineViewDebugSessionListener(
     val log by logger
 
     override fun sessionPaused() {
-        log.info("XListener: sessionPaused")
         val suspendContext = session.suspendContext ?: return requestClear()
         xCoroutineView.alarm.cancel()
         renew(suspendContext)
@@ -29,34 +28,24 @@ class CoroutineViewDebugSessionListener(
 
     override fun sessionResumed() {
         xCoroutineView.saveState()
-        log.info("XListener: sessionResumed")
         val suspendContext = session.suspendContext ?: return requestClear()
         renew(suspendContext)
     }
 
     override fun sessionStopped() {
-        log.info("XListener: sessionStopped")
         val suspendContext = session.suspendContext ?: return requestClear()
         renew(suspendContext)
     }
 
     override fun stackFrameChanged() {
         xCoroutineView.saveState()
-        log.info("XListener: stackFrameChanged")
-//        val suspendContext = session.suspendContext ?: return requestClear()
-//        log.warn("stackFrameChanged ${session}")
-//        renew(suspendContext)
     }
 
     override fun beforeSessionResume() {
-        log.info("XListener: beforeSessionResume")
-        log.warn("beforeSessionResume ${session}")
     }
 
     override fun settingsChanged() {
-        log.info("XListener: settingsChanged")
         val suspendContext = session.suspendContext ?: return requestClear()
-        log.warn("settingsChanged ${session}")
         renew(suspendContext)
     }
 
diff --git a/idea/jvm-debugger/jvm-debugger-util/src/org/jetbrains/kotlin/idea/debugger/safeUtil.kt b/idea/jvm-debugger/jvm-debugger-util/src/org/jetbrains/kotlin/idea/debugger/safeUtil.kt
index 431d5f5f03c..d7c406a2392 100644
--- a/idea/jvm-debugger/jvm-debugger-util/src/org/jetbrains/kotlin/idea/debugger/safeUtil.kt
+++ b/idea/jvm-debugger/jvm-debugger-util/src/org/jetbrains/kotlin/idea/debugger/safeUtil.kt
@@ -89,10 +89,6 @@ fun Field.safeType(): Type? {
     return wrapClassNotLoadedException { type() }
 }
 
-fun Method.safeSignature() {
-    wrapIllegalArgumentExceptionException { signature() }
-}
-
 private inline fun <T> wrapAbsentInformationException(block: () -> T): T? {
     return try {
         block()
@@ -105,14 +101,6 @@ private inline fun <T> wrapAbsentInformationException(block: () -> T): T? {
     }
 }
 
-private inline fun <T> wrapIllegalArgumentExceptionException(block: () -> T): T? {
-    return try {
-        block()
-    } catch (e: IllegalArgumentException) {
-        null
-    }
-}
-
 private inline fun <T> wrapClassNotLoadedException(block: () -> T): T? {
     return try {
         block()