chore: transfer shows error message

src/main/kotlin/app/termora/transfer/TransferTableModel.kt

@@ -379,7 +379,11 @@ class TransferTableModel(private val coroutineScope: CoroutineScope) :
                     }
                     continue
                 } else if (canTransfer(node)) {
+                    if (continueTransfer(node, false)) {
                         doTransfer(node)
+                    } else {
+                        changeState(node, State.Failed)
+                    }
                 }
                 lock.withLock { condition.signalAll() }
             } catch (_: CancellationException) {
@@ -407,8 +411,9 @@ class TransferTableModel(private val coroutineScope: CoroutineScope) :
                 }
             }
         } catch (e: Exception) {
-            node.tryChangeState(State.Failed)
+            tryChangeState(node, State.Failed)
             if (e !is UserCanceledException) {
+                node.setException(e)
                 throw e
             }
         } finally {
@@ -444,6 +449,12 @@ class TransferTableModel(private val coroutineScope: CoroutineScope) :
         fireTransferChanged(node)
     }
 
+    private fun tryChangeState(node: TransferTreeTableNode, state: State) {
+        if (node.tryChangeState(state)) {
+            fireTransferChanged(node)
+        }
+    }
+
     private fun removeCompleted(node: TransferTreeTableNode) {
 
         if (node == getRoot()) return

src/main/kotlin/app/termora/transfer/TransferTreeTableNode.kt

@@ -5,6 +5,7 @@ import app.termora.formatBytes
 import app.termora.formatSeconds
 import app.termora.transfer.TransferTableModel.Companion.COLUMN_COUNT
 import org.apache.commons.lang3.StringUtils
+import org.apache.commons.lang3.exception.ExceptionUtils
 import org.jdesktop.swingx.treetable.DefaultMutableTreeTableNode
 import java.nio.file.FileSystems
 import java.nio.file.Path
@@ -43,6 +44,8 @@ class TransferTreeTableNode(transfer: Transfer) : DefaultMutableTreeTableNode(tr
      */
     private var state = State.Ready
 
+    private var exception: Exception? = null
+
 
     override fun getColumnCount(): Int {
         return COLUMN_COUNT
@@ -96,6 +99,14 @@ class TransferTreeTableNode(transfer: Transfer) : DefaultMutableTreeTableNode(tr
             return I18n.getString("termora.transport.sftp.status.deleting")
         }
 
+        if (state == State.Failed) {
+            val e = exception
+            if (e != null) {
+                val message = ExceptionUtils.getRootCauseMessage(e)
+                return "${I18n.getString("termora.transport.sftp.status.failed")}: $message"
+            }
+        }
+
         return when (state) {
             State.Processing -> I18n.getString("termora.transport.sftp.status.transporting")
             State.Ready -> I18n.getString("termora.transport.sftp.status.waiting")
@@ -130,6 +141,9 @@ class TransferTreeTableNode(transfer: Transfer) : DefaultMutableTreeTableNode(tr
         this.state = state
     }
 
+    fun setException(e: Exception) {
+        this.exception = e
+    }
 
     fun tryChangeState(state: State): Boolean {
         if (this.state == State.Done || this.state == State.Failed) {