diff --git a/README.md b/README.md
index ee1f609..e3d14de 100644
--- a/README.md
+++ b/README.md
@@ -17,72 +17,90 @@ go get github.com/hertz-contrib/pprof
 ### Example
 
 ```go
+package main
+
+import (
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/cloudwego/hertz/pkg/common/utils"
+	"github.com/cloudwego/hertz/pkg/protocol/consts"
+	"github.com/hertz-contrib/pprof"
+)
+
 func main() {
-    h := server.Default()
-    
-    pprof.Register(h)
-    
-    h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
-    ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
-    })
-    
-    h.Spin()
+	h := server.Default()
+
+	pprof.Register(h)
+
+	h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
+	})
+
+	h.Spin()
 }
 ```
 
 ### change default path prefix
 
 ```go
+package main
+
 import (
-    "context"
-    "github.com/cloudwego/hertz/pkg/app"
-    "github.com/cloudwego/hertz/pkg/app/server"
-    "github.com/cloudwego/hertz/pkg/common/utils"
-    "github.com/cloudwego/hertz/pkg/protocol/consts"
-    "hertz-contrib-beiye/pprof"
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/cloudwego/hertz/pkg/common/utils"
+	"github.com/cloudwego/hertz/pkg/protocol/consts"
+	"github.com/hertz-contrib/pprof"
 )
 
 func main() {
-    h := server.Default()
-    
-    // default is "debug/pprof"
-    pprof.Register(h, "dev/pprof")
-    
-    h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
-        ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
-    })
-    
-    h.Spin()
-}
+	h := server.Default()
 
+	// default is "debug/pprof"
+	pprof.Register(h, "dev/pprof")
+
+	h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
+	})
+
+	h.Spin()
+}
 ```
 
 ### custom router group
 
 ```go
+package main
+
 import (
-    "context"
-    "github.com/cloudwego/hertz/pkg/app"
-    "github.com/cloudwego/hertz/pkg/app/server"
-    "hertz-contrib-beiye/pprof"
-    "net/http"
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/cloudwego/hertz/pkg/common/utils"
+	"github.com/cloudwego/hertz/pkg/protocol/consts"
+	"github.com/hertz-contrib/pprof"
 )
 
 func main() {
-    h := server.Default()
-    
-    pprof.Register(h)
-
-    adminGroup := h.Group("/admin")
-    adminGroup.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
-    ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
-    })
-    
-    pprof.RouteRegister(adminGroup, "pprof")
-    
-    h.Spin()
-}
+	h := server.Default()
 
+	pprof.Register(h)
+
+	adminGroup := h.Group("/admin")
+
+	adminGroup.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
+	})
+
+	pprof.RouteRegister(adminGroup, "pprof")
+
+	h.Spin()
+}
 ```
 
 
diff --git a/README_CN.md b/README_CN.md
index 9bfc4a5..2d6ed65 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -15,72 +15,90 @@ go get github.com/hertz-contrib/pprof
 ### 代码实例1
 
 ```go
+package main
+
+import (
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/cloudwego/hertz/pkg/common/utils"
+	"github.com/cloudwego/hertz/pkg/protocol/consts"
+	"github.com/hertz-contrib/pprof"
+)
+
 func main() {
-    h := server.Default()
-    
-    pprof.Register(h)
-    
-    h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
-    ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
-    })
-    
-    h.Spin()
+	h := server.Default()
+
+	pprof.Register(h)
+
+	h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
+	})
+
+	h.Spin()
 }
 ```
 
 ### 代码实例2: 自定义前缀
 
 ```go
+package main
+
 import (
-    "context"
-    "github.com/cloudwego/hertz/pkg/app"
-    "github.com/cloudwego/hertz/pkg/app/server"
-    "github.com/cloudwego/hertz/pkg/common/utils"
-    "github.com/cloudwego/hertz/pkg/protocol/consts"
-    "hertz-contrib-beiye/pprof"
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/cloudwego/hertz/pkg/common/utils"
+	"github.com/cloudwego/hertz/pkg/protocol/consts"
+	"github.com/hertz-contrib/pprof"
 )
 
 func main() {
-    h := server.Default()
-    
-    // default is "debug/pprof"
-    pprof.Register(h, "dev/pprof")
-    
-    h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
-        ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
-    })
-    
-    h.Spin()
-}
+	h := server.Default()
 
+	// default is "debug/pprof"
+	pprof.Register(h, "dev/pprof")
+
+	h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
+	})
+
+	h.Spin()
+}
 ```
 
 ### 代码实例3: 自定义路由组
 
 ```go
+package main
+
 import (
-    "context"
-    "github.com/cloudwego/hertz/pkg/app"
-    "github.com/cloudwego/hertz/pkg/app/server"
-    "hertz-contrib-beiye/pprof"
-    "net/http"
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/cloudwego/hertz/pkg/common/utils"
+	"github.com/cloudwego/hertz/pkg/protocol/consts"
+	"github.com/hertz-contrib/pprof"
 )
 
 func main() {
-    h := server.Default()
-    
-    pprof.Register(h)
-
-    adminGroup := h.Group("/admin")
-    adminGroup.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
-    ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
-    })
-    
-    pprof.RouteRegister(adminGroup, "pprof")
-    
-    h.Spin()
-}
+	h := server.Default()
 
+	pprof.Register(h)
+
+	adminGroup := h.Group("/admin")
+
+	adminGroup.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(consts.StatusOK, utils.H{"ping": "pong"})
+	})
+
+	pprof.RouteRegister(adminGroup, "pprof")
+
+	h.Spin()
+}
 ```
 
 
diff --git a/adaptor/handler.go b/adaptor/handler.go
index 1c1b511..5eb64b7 100644
--- a/adaptor/handler.go
+++ b/adaptor/handler.go
@@ -1,15 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package adaptor
 
diff --git a/adaptor/handler_test.go b/adaptor/handler_test.go
index 57069ef..1421ac9 100644
--- a/adaptor/handler_test.go
+++ b/adaptor/handler_test.go
@@ -1,15 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package adaptor
 
diff --git a/example/custom_prefix/server.go b/example/custom_prefix/server.go
index 5234365..80c3097 100644
--- a/example/custom_prefix/server.go
+++ b/example/custom_prefix/server.go
@@ -1,27 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2016 Bo-Yi Wu
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package main
 
diff --git a/example/custom_router_group/server.go b/example/custom_router_group/server.go
index 6e428aa..be21fbb 100644
--- a/example/custom_router_group/server.go
+++ b/example/custom_router_group/server.go
@@ -1,27 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2016 Bo-Yi Wu
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package main
 
diff --git a/example/default/server.go b/example/default/server.go
index 28b47c5..408bf57 100644
--- a/example/default/server.go
+++ b/example/default/server.go
@@ -1,27 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2016 Bo-Yi Wu
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package main
 
diff --git a/pprof.go b/pprof.go
index 8870630..d6088bf 100644
--- a/pprof.go
+++ b/pprof.go
@@ -1,27 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2016 Bo-Yi Wu
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package pprof
 
diff --git a/pprof_test.go b/pprof_test.go
index bbe7f57..9ff020b 100644
--- a/pprof_test.go
+++ b/pprof_test.go
@@ -1,27 +1,43 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2016 Bo-Yi Wu
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-//
-// This file may have been modified by CloudWeGo authors. All CloudWeGo
-// Modifications are Copyright 2022 CloudWeGo Authors.
+/*
+ * Copyright 2022 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file may have been modified by CloudWeGo authors. All CloudWeGo
+ * Modifications are Copyright 2022 CloudWeGo Authors.
+ */
 
 package pprof