diff --git a/src/main/kotlin/com/github/adrienpessu/sarifviewer/services/SarifService.kt b/src/main/kotlin/com/github/adrienpessu/sarifviewer/services/SarifService.kt
index 77b2618..508e220 100644
--- a/src/main/kotlin/com/github/adrienpessu/sarifviewer/services/SarifService.kt
+++ b/src/main/kotlin/com/github/adrienpessu/sarifviewer/services/SarifService.kt
@@ -2,13 +2,11 @@ package com.github.adrienpessu.sarifviewer.services
 
 import com.contrastsecurity.sarif.SarifSchema210
 import com.fasterxml.jackson.databind.ObjectMapper
-import com.fasterxml.jackson.jr.ob.JSON
 import com.fasterxml.jackson.module.kotlin.readValue
 import com.github.adrienpessu.sarifviewer.exception.SarifViewerException
 import com.github.adrienpessu.sarifviewer.models.Leaf
 import com.github.adrienpessu.sarifviewer.models.Root
 import com.intellij.openapi.components.Service
-import com.intellij.openapi.project.Project
 import net.minidev.json.JSONArray
 import java.net.HttpURLConnection
 import java.net.URL
@@ -32,7 +30,7 @@ class SarifService {
     }
 
     fun analyseSarif(sarif: SarifSchema210): HashMap<String, MutableList<Leaf>> {
-        val map = HashMap<String, MutableList<Leaf>>();
+        val map = HashMap<String, MutableList<Leaf>>()
 
         sarif.runs.forEach { run ->
             run.results.forEach { result ->
diff --git a/src/main/kotlin/com/github/adrienpessu/sarifviewer/toolWindow/SarifViewerWindowFactory.kt b/src/main/kotlin/com/github/adrienpessu/sarifviewer/toolWindow/SarifViewerWindowFactory.kt
index e05c6c7..e041e27 100644
--- a/src/main/kotlin/com/github/adrienpessu/sarifviewer/toolWindow/SarifViewerWindowFactory.kt
+++ b/src/main/kotlin/com/github/adrienpessu/sarifviewer/toolWindow/SarifViewerWindowFactory.kt
@@ -18,10 +18,8 @@ import com.intellij.openapi.vfs.VirtualFileManager
 import com.intellij.openapi.wm.ToolWindow
 import com.intellij.openapi.wm.ToolWindowFactory
 import com.intellij.ui.ScrollPaneFactory
-import com.intellij.ui.TreeSpeedSearch
 import com.intellij.ui.components.JBPanel
 import com.intellij.ui.content.ContentFactory
-import com.intellij.ui.treeStructure.Tree
 import git4idea.GitLocalBranch
 import git4idea.repo.GitRepository
 import git4idea.repo.GitRepositoryChangeListener
@@ -34,6 +32,7 @@ import java.io.FileReader
 import java.io.FileWriter
 import java.net.URI
 import java.nio.charset.Charset
+import java.nio.file.Files
 import java.nio.file.Path
 import javax.swing.*
 import javax.swing.event.HyperlinkEvent
@@ -43,7 +42,6 @@ import javax.swing.event.TreeSelectionListener
 import javax.swing.text.html.HTMLEditorKit
 import javax.swing.tree.DefaultMutableTreeNode
 import javax.swing.tree.DefaultTreeModel
-import javax.swing.tree.TreeNode
 
 
 class SarifViewerWindowFactory : ToolWindowFactory {
@@ -161,7 +159,7 @@ class SarifViewerWindowFactory : ToolWindowFactory {
             NotificationGroupManager.getInstance()
                 .getNotificationGroup("SARIF viewer")
                 .createNotification(message, NotificationType.ERROR)
-                .notify(project);
+                .notify(project)
 
             thisLogger().info(message)
         }
@@ -270,15 +268,14 @@ class SarifViewerWindowFactory : ToolWindowFactory {
             myList = JTree(root)
 
             myList.isRootVisible = false
-            val treeSpeedSearch = TreeSpeedSearch(myList)
-            main = ScrollPaneFactory.createScrollPane(myList);
+            main = ScrollPaneFactory.createScrollPane(myList)
 
             details.isVisible = false
 
             splitPane.leftComponent = main
             splitPane.rightComponent = details
 
-            treeSpeedSearch.component.addTreeSelectionListener(object : TreeSelectionListener {
+            myList.addTreeSelectionListener(object : TreeSelectionListener {
                 override fun valueChanged(e: TreeSelectionEvent?) {
                     if (e != null && e.isAddedPath) {
                         val leaves = map[e.path.parentPath.lastPathComponent.toString()]
@@ -310,11 +307,12 @@ class SarifViewerWindowFactory : ToolWindowFactory {
                         }
                     }
                 }
-            });
+            })
         }
 
         private fun manageTreeIcons() {
-            val tmpFile: File = File.createTempFile("warning", ".svg")
+            val tmpPath: Path? = Files.createTempFile("warning", ".svg")
+            val tmpFile = File(tmpPath!!.toUri())
             val writer = FileWriter(tmpFile)
             writer.write(Icons.ICON_WARNING)
             writer.close()
diff --git a/src/main/kotlin/com/github/adrienpessu/sarifviewer/utils/Icons.kt b/src/main/kotlin/com/github/adrienpessu/sarifviewer/utils/Icons.kt
index 036b72c..6338e85 100644
--- a/src/main/kotlin/com/github/adrienpessu/sarifviewer/utils/Icons.kt
+++ b/src/main/kotlin/com/github/adrienpessu/sarifviewer/utils/Icons.kt
@@ -4,7 +4,7 @@ class Icons {
 
     companion object {
         const val ICON_WARNING = "<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 12 12\" width=\"12\" height=\"12\"><path d=\"M4.855.708c.5-.896 1.79-.896 2.29 0l4.675 8.351a1.312 1.312 0 0 1-1.146 1.954H1.33A1.313 1.313 0 0 1 .183 9.058ZM7 7V3H5v4Zm-1 3a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z\"></path></svg>"
-        const val ICON_DIRECTORY = "<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\"><path d=\"M0 2.75C0 1.784.784 1 1.75 1H5c.55 0 1.07.26 1.4.7l.9 1.2a.25.25 0 0 0 .2.1h6.75c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 15H1.75A1.75 1.75 0 0 1 0 13.25Zm1.75-.25a.25.25 0 0 0-.25.25v10.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25H7.5c-.55 0-1.07-.26-1.4-.7l-.9-1.2a.25.25 0 0 0-.2-.1Z\"></path></svg>"
+        // const val ICON_DIRECTORY = "<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\"><path d=\"M0 2.75C0 1.784.784 1 1.75 1H5c.55 0 1.07.26 1.4.7l.9 1.2a.25.25 0 0 0 .2.1h6.75c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 15H1.75A1.75 1.75 0 0 1 0 13.25Zm1.75-.25a.25.25 0 0 0-.25.25v10.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25H7.5c-.55 0-1.07-.26-1.4-.7l-.9-1.2a.25.25 0 0 0-.2-.1Z\"></path></svg>"
         const val ERROR = "<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\"><path d=\"M0 2.75C0 1.784.784 1 1.75 1H5c.55 0 1.07.26 1.4.7l.9 1.2a.25.25 0 0 0 .2.1h6.75c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 15H1.75A1.75 1.75 0 0 1 0 13.25Zm1.75-.25a.25.25 0 0 0-.25.25v10.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25H7.5c-.55 0-1.07-.26-1.4-.7l-.9-1.2a.25.25 0 0 0-.2-.1Z\"></path></svg>"
     }
 }
\ No newline at end of file