diff --git a/java/src/main/kotlin/cc/unitmesh/idea/actions/ExplainBusinessAction.kt b/java/src/main/kotlin/cc/unitmesh/idea/actions/ExplainBusinessAction.kt
index 1e68aee0f2..225c9483a7 100644
--- a/java/src/main/kotlin/cc/unitmesh/idea/actions/ExplainBusinessAction.kt
+++ b/java/src/main/kotlin/cc/unitmesh/idea/actions/ExplainBusinessAction.kt
@@ -18,6 +18,7 @@ import com.intellij.openapi.progress.ProgressManager
 import com.intellij.openapi.progress.Task
 import com.intellij.openapi.progress.impl.BackgroundableProcessIndicator
 import com.intellij.openapi.project.Project
+import com.intellij.openapi.util.NlsSafe
 import com.intellij.psi.PsiFile
 import com.intellij.psi.PsiMethod
 
@@ -47,22 +48,21 @@ class ExplainBusinessAction : AbstractChatIntention() {
 
         val task: Task.Backgroundable = object : Task.Backgroundable(project, "Collect context") {
             override fun run(indicator: ProgressIndicator) {
-                val instruction = actionType.instruction(lang)
-
+                // prepare context
                 val contextItems = when (element) {
                     is PsiMethod -> {
-                        val javaMethodContextBuilder = JavaMethodContextBuilder()
                         val methodContext = ReadAction.compute<MethodContext?, Throwable> {
-                            return@compute javaMethodContextBuilder.getMethodContext(
+                            return@compute JavaMethodContextBuilder().getMethodContext(
                                 creationContext.element as PsiMethod,
                                 true,
                                 gatherUsages = true
                             )
                         }
+                        // collect usages should run in [ProgressIndicator]
                         methodContext?.let {
-                            val toQuery = ReadAction.compute<String?, Throwable> { return@compute it.toQuery() }
-                                .lines()
-                                .joinToString("// $it\n")
+                            val toQuery = ReadAction.compute<String?, Throwable> {
+                                return@compute it.toQuery()
+                            }
                             val contextItem = ChatContextItem(ExplainBusinessAction::class, toQuery)
                             listOf(contextItem)
                         } ?: emptyList()
@@ -73,26 +73,37 @@ class ExplainBusinessAction : AbstractChatIntention() {
                     }
                 }
 
-                var chatContext = ""
-                contextItems.forEach {
-                    chatContext += it.text
-                }
-
-                if (chatContext.isEmpty()) {
-                    chatContext = selectedText
-                } else {
-                    chatContext = "// Compare this snippet $chatContext\norigin code:\n```$lang$selectedText```\n"
-                }
-
-                ApplicationManager.getApplication().invokeLater {
-                    sendToChatWindow(project, getActionType()) { contentPanel, _ ->
-                        contentPanel.setInput("\n$instruction\n```markdown\n$chatContext")
-                    }
-                }
+                val instruction = actionType.instruction(lang)
+                sendToChat(contextItems, selectedText, lang, project, instruction)
             }
         }
 
         ProgressManager.getInstance().runProcessWithProgressAsynchronously(task, BackgroundableProcessIndicator(task))
     }
+
+    private fun sendToChat(
+        contextItems: List<ChatContextItem>,
+        selectedText: @NlsSafe String,
+        lang: @NlsSafe String,
+        project: Project,
+        instruction: String,
+    ) {
+        var chatContext = "\n"
+        contextItems.forEach {
+            chatContext += it.text
+        }
+
+        ApplicationManager.getApplication().invokeLater {
+            if (chatContext.isEmpty()) {
+                chatContext = selectedText
+            } else {
+                chatContext = "// Compare this snippet $chatContext\norigin code:\n```$lang$selectedText```\n"
+            }
+
+            sendToChatWindow(project, getActionType()) { contentPanel, _ ->
+                contentPanel.setInput("\n$instruction\n```markdown\n$chatContext")
+            }
+        }
+    }
 }
 
diff --git a/java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JvmAutoDevFlow.kt b/java/src/main/kotlin/cc/unitmesh/idea/flow/JvmAutoDevFlow.kt
similarity index 98%
rename from java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JvmAutoDevFlow.kt
rename to java/src/main/kotlin/cc/unitmesh/idea/flow/JvmAutoDevFlow.kt
index f508f2061c..257c759571 100644
--- a/java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JvmAutoDevFlow.kt
+++ b/java/src/main/kotlin/cc/unitmesh/idea/flow/JvmAutoDevFlow.kt
@@ -1,4 +1,4 @@
-package cc.unitmesh.idea.flow.provider
+package cc.unitmesh.idea.flow
 
 import cc.unitmesh.devti.AutoDevBundle
 import cc.unitmesh.devti.context.model.DtClass
@@ -12,8 +12,6 @@ import cc.unitmesh.devti.parser.parseCodeFromString
 import cc.unitmesh.devti.provider.DevFlowProvider
 import cc.unitmesh.devti.provider.PromptStrategy
 import cc.unitmesh.devti.runconfig.AutoDevRunProfileState
-import cc.unitmesh.idea.flow.JavaCodeProcessor
-import cc.unitmesh.idea.flow.JavaParseUtil
 import cc.unitmesh.idea.spring.JavaSpringCodeCreator
 import com.intellij.openapi.application.runReadAction
 import com.intellij.openapi.components.service
diff --git a/java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JavaContextPrompter.kt b/java/src/main/kotlin/cc/unitmesh/idea/promting/JavaContextPrompter.kt
similarity index 99%
rename from java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JavaContextPrompter.kt
rename to java/src/main/kotlin/cc/unitmesh/idea/promting/JavaContextPrompter.kt
index e67795514d..303ee4209d 100644
--- a/java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JavaContextPrompter.kt
+++ b/java/src/main/kotlin/cc/unitmesh/idea/promting/JavaContextPrompter.kt
@@ -1,4 +1,4 @@
-package cc.unitmesh.idea.flow.provider
+package cc.unitmesh.idea.promting
 
 import cc.unitmesh.devti.context.chunks.SimilarChunksWithPaths
 import cc.unitmesh.devti.gui.chat.ChatActionType
diff --git a/java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JvmPromptStrategy.kt b/java/src/main/kotlin/cc/unitmesh/idea/promting/JvmPromptStrategy.kt
similarity index 99%
rename from java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JvmPromptStrategy.kt
rename to java/src/main/kotlin/cc/unitmesh/idea/promting/JvmPromptStrategy.kt
index 87937027ff..4d18605b70 100644
--- a/java/src/main/kotlin/cc/unitmesh/idea/flow/provider/JvmPromptStrategy.kt
+++ b/java/src/main/kotlin/cc/unitmesh/idea/promting/JvmPromptStrategy.kt
@@ -1,4 +1,4 @@
-package cc.unitmesh.idea.flow.provider
+package cc.unitmesh.idea.promting
 
 import cc.unitmesh.devti.context.model.DtClass
 import cc.unitmesh.devti.provider.PromptStrategy
diff --git a/java/src/main/resources/cc.unitmesh.idea.xml b/java/src/main/resources/cc.unitmesh.idea.xml
index 616dbc71a5..0b3ce25ba7 100644
--- a/java/src/main/resources/cc.unitmesh.idea.xml
+++ b/java/src/main/resources/cc.unitmesh.idea.xml
@@ -27,13 +27,13 @@
 
         <contextPrompter
                 language="JAVA"
-                implementation="cc.unitmesh.idea.flow.provider.JavaContextPrompter"/>
+                implementation="cc.unitmesh.idea.promting.JavaContextPrompter"/>
         <devFlowProvider
                 language="JAVA"
-                implementation="cc.unitmesh.idea.flow.provider.JvmAutoDevFlow"/>
+                implementation="cc.unitmesh.idea.flow.JvmAutoDevFlow"/>
         <promptStrategy
                 language="JAVA"
-                implementation="cc.unitmesh.idea.flow.provider.JvmPromptStrategy"/>
+                implementation="cc.unitmesh.idea.promting.JvmPromptStrategy"/>
 
         <testContextProvider
                 language="JAVA"
diff --git a/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmAutoDevFlowTest.kt b/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmAutoDevFlowTest.kt
index 0e6443e542..27575b9fb6 100644
--- a/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmAutoDevFlowTest.kt
+++ b/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmAutoDevFlowTest.kt
@@ -1,6 +1,6 @@
 package cc.unitmesh.idea.provider
 
-import cc.unitmesh.idea.flow.provider.JvmAutoDevFlow
+import cc.unitmesh.idea.flow.JvmAutoDevFlow
 import org.junit.Test
 
 class JvmAutoDevFlowTest {
diff --git a/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmPromptStrategyTest.kt b/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmPromptStrategyTest.kt
index 9ddfec6099..9b5f32adbf 100644
--- a/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmPromptStrategyTest.kt
+++ b/java/src/test/kotlin/cc/unitmesh/idea/provider/JvmPromptStrategyTest.kt
@@ -1,6 +1,6 @@
 package cc.unitmesh.idea.provider
 
-import cc.unitmesh.idea.flow.provider.JvmPromptStrategy
+import cc.unitmesh.idea.promting.JvmPromptStrategy
 import com.intellij.lang.java.JavaLanguage
 import com.intellij.psi.JavaPsiFacade
 import com.intellij.psi.PsiElementFactory
diff --git a/kotlin/src/main/kotlin/cc/unitmesh/kotlin/provider/KotlinContextPrompter.kt b/kotlin/src/main/kotlin/cc/unitmesh/kotlin/provider/KotlinContextPrompter.kt
index 558c70612f..aa0b04149d 100644
--- a/kotlin/src/main/kotlin/cc/unitmesh/kotlin/provider/KotlinContextPrompter.kt
+++ b/kotlin/src/main/kotlin/cc/unitmesh/kotlin/provider/KotlinContextPrompter.kt
@@ -1,6 +1,6 @@
 package cc.unitmesh.kotlin.provider
 
-import cc.unitmesh.idea.flow.provider.JavaContextPrompter
+import cc.unitmesh.idea.promting.JavaContextPrompter
 
 class KotlinContextPrompter: JavaContextPrompter() {
 }
\ No newline at end of file