/*
 * Copyright 2014 http4s.org
 *
 * 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.
 */

package org.http4s.blazecore.util

import scala.concurrent.ExecutionContext

private[util] trait ParasiticExecutionContextCompat {
  final def parasitic: ExecutionContext = ExecutionContext.parasitic
}

/*
 * Copyright 2014 http4s.org
 *
 * 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.
 */

package org.http4s.blazecore.util

import org.http4s.blaze.util.Execution

import scala.concurrent.ExecutionContext

private[util] trait ParasiticExecutionContextCompat {
  final def parasitic: ExecutionContext = Execution.trampoline
}

--- 
+++ 
@@ -16,10 +16,8 @@
 
 package org.http4s.blazecore.util
 
-import org.http4s.blaze.util.Execution
-
 import scala.concurrent.ExecutionContext
 
 private[util] trait ParasiticExecutionContextCompat {
-  final def parasitic: ExecutionContext = Execution.trampoline
+  final def parasitic: ExecutionContext = ExecutionContext.parasitic
 }
Use parasitic EC in the blaze for Scala 2.13
