diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9c65d74e..3cfc1471 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,7 +11,7 @@ jobs:
     working_directory: ~/repo
     environment:
       LEIN_ROOT: "true"
-      # GRAALVM_HOME: /home/circleci/graalvm-ce-java8-19.3.0
+      BABASHKA_PLATFORM: linux # could be used in jar name
     steps:
       - checkout
       - run:
@@ -52,7 +52,7 @@ jobs:
             mkdir -p /tmp/release
             lein do clean, uberjar
             VERSION=$(cat resources/BABASHKA_VERSION)
-            cp target/babashka-$VERSION-standalone.jar /tmp/release
+            cp target/babashka-$VERSION-linux-standalone.jar /tmp/release
       - store_artifacts:
           path: /tmp/release
           destination: release
@@ -115,6 +115,7 @@ jobs:
           name: Run tests
           command: |
             script/test
+            script/clj_http_lite_test
       # - run:
       #     name: Performance report
       #     command: |
@@ -178,6 +179,7 @@ jobs:
           name: Run tests
           command: |
             script/test
+            script/clj_http_lite_test
       # - run:
       #     name: Performance report
       #     command: |
diff --git a/.gitignore b/.gitignore
index a96a9d65..ba4d6ce4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ pom.xml.asc
 !test-resources/babashka/src_for_classpath_test/foo.jar
 .cpcache
 deps.edn
+reflection.json
diff --git a/reflection.json b/reflection.json
deleted file mode 100644
index 26f91f9b..00000000
--- a/reflection.json
+++ /dev/null
@@ -1,554 +0,0 @@
-[ {
-  "name" : "clojure.lang.Delay",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "clojure.lang.ExceptionInfo",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "clojure.lang.IEditableCollection",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "clojure.lang.IObj",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "clojure.lang.LineNumberingPushbackReader",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "clojure.lang.MapEntry",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "clojure.lang.PersistentQueue",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.BufferedReader",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.BufferedWriter",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.ByteArrayInputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.ByteArrayOutputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.File",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.IOException",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.InputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.OutputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.StringReader",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.io.StringWriter",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.ArithmeticException",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.AssertionError",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Boolean",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Class",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Double",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Exception",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Integer",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Math",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Process",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.ProcessBuilder",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.ProcessBuilder$Redirect",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.String",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.System",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.Throwable",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.UNIXProcess",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.lang.UNIXProcess$ProcessPipeOutputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.HttpURLConnection",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.ServerSocket",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.Socket",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.URI",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.URLDecoder",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.URLEncoder",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.net.UnknownHostException",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.CopyOption",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.FileAlreadyExistsException",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.Files",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.LinkOption",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.NoSuchFileException",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.Path",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.Paths",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.StandardCopyOption",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.attribute.FileAttribute",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.attribute.FileTime",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.attribute.PosixFilePermission",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.nio.file.attribute.PosixFilePermissions",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.Clock",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.DateTimeException",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.DayOfWeek",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.Duration",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.Instant",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.LocalDate",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.LocalDateTime",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.LocalTime",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.Month",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.MonthDay",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.OffsetDateTime",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.OffsetTime",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.Period",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.Year",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.YearMonth",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.ZoneId",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.ZoneOffset",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.ZonedDateTime",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.format.DateTimeFormatter",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.time.temporal.TemporalAccessor",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.Base64",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.Base64$Decoder",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.Base64$Encoder",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.UUID",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.concurrent.LinkedBlockingQueue",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.concurrent.TimeUnit",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.regex.Pattern",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.zip.DeflaterInputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.zip.GZIPInputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.zip.GZIPOutputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "java.util.zip.InflaterInputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "sun.net.www.http.PosterOutputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "sun.net.www.protocol.http.HttpURLConnection",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "sun.net.www.protocol.http.HttpURLConnection$HttpInputStream",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "sun.net.www.protocol.https.HttpsURLConnectionImpl",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "name" : "sun.nio.fs.UnixPath",
-  "allPublicMethods" : true,
-  "allPublicFields" : true,
-  "allPublicConstructors" : true
-}, {
-  "allPublicConstructors" : true,
-  "methods" : [ {
-    "name" : "activeCount"
-  }, {
-    "name" : "checkAccess"
-  }, {
-    "name" : "currentThread"
-  }, {
-    "name" : "dumpStack"
-  }, {
-    "name" : "enumerate"
-  }, {
-    "name" : "getAllStackTraces"
-  }, {
-    "name" : "getContextClassLoader"
-  }, {
-    "name" : "getDefaultUncaughtExceptionHandler"
-  }, {
-    "name" : "getId"
-  }, {
-    "name" : "getName"
-  }, {
-    "name" : "getPriority"
-  }, {
-    "name" : "getStackTrace"
-  }, {
-    "name" : "getState"
-  }, {
-    "name" : "getThreadGroup"
-  }, {
-    "name" : "getUncaughtExceptionHandler"
-  }, {
-    "name" : "holdsLock"
-  }, {
-    "name" : "interrupt"
-  }, {
-    "name" : "interrupted"
-  }, {
-    "name" : "isAlive"
-  }, {
-    "name" : "isDaemon"
-  }, {
-    "name" : "isInterrupted"
-  }, {
-    "name" : "join"
-  }, {
-    "name" : "run"
-  }, {
-    "name" : "setContextClassLoader"
-  }, {
-    "name" : "setDaemon"
-  }, {
-    "name" : "setDefaultUncaughtExceptionHandler"
-  }, {
-    "name" : "setName"
-  }, {
-    "name" : "setPriority"
-  }, {
-    "name" : "setUncaughtExceptionHandler"
-  }, {
-    "name" : "sleep"
-  }, {
-    "name" : "start"
-  }, {
-    "name" : "toString"
-  }, {
-    "name" : "yield"
-  } ],
-  "name" : "java.lang.Thread"
-}, {
-  "allPublicConstructors" : true,
-  "allPublicFields" : true,
-  "methods" : [ {
-    "name" : "equals"
-  }, {
-    "name" : "getAuthority"
-  }, {
-    "name" : "getContent"
-  }, {
-    "name" : "getDefaultPort"
-  }, {
-    "name" : "getFile"
-  }, {
-    "name" : "getHost"
-  }, {
-    "name" : "getPath"
-  }, {
-    "name" : "getPort"
-  }, {
-    "name" : "getProtocol"
-  }, {
-    "name" : "getQuery"
-  }, {
-    "name" : "getRef"
-  }, {
-    "name" : "getUserInfo"
-  }, {
-    "name" : "hashCode"
-  }, {
-    "name" : "openConnection"
-  }, {
-    "name" : "openStream"
-  }, {
-    "name" : "sameFile"
-  }, {
-    "name" : "toExternalForm"
-  }, {
-    "name" : "toString"
-  }, {
-    "name" : "toURI"
-  } ],
-  "name" : "java.net.URL"
-} ]
\ No newline at end of file
diff --git a/reflection.json.bak b/reflection.json.bak
deleted file mode 100644
index a41c3fcd..00000000
--- a/reflection.json.bak
+++ /dev/null
@@ -1,185 +0,0 @@
-[
-  {
-    "name":"java.lang.ArithmeticException",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.AssertionError",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.Boolean",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.io.BufferedWriter",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.io.BufferedReader",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name": "java.lang.Class",
-    "allDeclaredConstructors": true,
-    "allPublicConstructors": true,
-    "allDeclaredMethods": true,
-    "allPublicMethods": true
-  },
-  {
-    "name":"java.lang.Double",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.Exception",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name": "clojure.lang.ExceptionInfo",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.Integer",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.io.File",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"clojure.lang.LineNumberingPushbackReader",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.util.concurrent.LinkedBlockingQueue",
-    "allPublicMethods":true
-  },
-  {
-    "name":"java.util.regex.Pattern",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.Process",
-    "allPublicMethods":true
-  },
-  {
-    "name":"java.lang.ProcessBuilder",
-    "allPublicConstructors":true
-  },
-  {
-    "name":"java.lang.String",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.io.StringReader",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.io.StringWriter",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.System",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.Thread",
-    "methods": [{"name":"run"},{"name":"toString"},{"name":"isInterrupted"},{"name":"currentThread"},{"name":"getName"},{"name":"join"},{"name":"getThreadGroup"},{"name":"getStackTrace"},{"name":"holdsLock"},{"name":"checkAccess"},{"name":"dumpStack"},{"name":"yield"},{"name":"setPriority"},{"name":"setDaemon"},{"name":"start"},{"name":"sleep"},{"name":"interrupt"},{"name":"interrupted"},{"name":"isAlive"},{"name":"getPriority"},{"name":"setName"},{"name":"activeCount"},{"name":"enumerate"},{"name":"isDaemon"},{"name":"getContextClassLoader"},{"name":"setContextClassLoader"},{"name":"getAllStackTraces"},{"name":"getId"},{"name":"getState"},{"name":"setDefaultUncaughtExceptionHandler"},{"name":"getDefaultUncaughtExceptionHandler"},{"name":"getUncaughtExceptionHandler"},{"name":"setUncaughtExceptionHandler"}],
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.lang.UNIXProcess",
-    "allPublicMethods":true
-  },
-  {
-    "name":"java.nio.file.attribute.FileAttribute",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.attribute.PosixFilePermission",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.attribute.PosixFilePermissions",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.Path",
-    "allPublicMethods":true
-  },
-  {
-    "name":"java.nio.file.CopyOption",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.FileAlreadyExistsException",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.Files",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.NoSuchFileException",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"java.nio.file.StandardCopyOption",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  },
-  {
-    "name":"sun.nio.fs.UnixPath",
-    "allPublicMethods":true,
-    "allPublicFields": true,
-    "allPublicConstructors": true
-  }
-]
diff --git a/script/clj_http_lite_test b/script/clj_http_lite_test
new file mode 100755
index 00000000..c1b260f6
--- /dev/null
+++ b/script/clj_http_lite_test
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+export BABASHKA_CLASSPATH=$(clojure -Sdeps '{:deps {clj-http-lite {:git/url "https://github.com/borkdude/clj-http-lite" :sha "f44ebe45446f0f44f2b73761d102af3da6d0a13e"}}}' -Spath)
+
+./bb -e "
+(require '[clj-http.lite.client :as client])
+
+(prn (:status (client/get \"https://www.clojure.org\")))
+
+(prn (:status (client/get \"https://postman-echo.com/get?foo1=bar1&foo2=bar2\")))
+
+(prn (:status (client/post \"https://postman-echo.com/post\")))
+
+(prn (:status (client/put \"https://postman-echo.com/put\")))
+"
diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index c276ee85..12a5a291 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -1,164 +1,186 @@
 (ns babashka.impl.classes
   {:no-doc true}
   (:require
-   [cheshire.core :as json]))
+   [cheshire.core :as json]
+   [clojure.string :as str]))
+
+(def os-name (str/lower-case (System/getProperty "os.name")))
+(def os (cond (str/includes? os-name "mac") :mac
+              (or (str/includes? os-name "nix")
+                  (str/includes? os-name "nux")) :linux
+              (str/includes? os-name "win") :windows))
+(def unix-like? (or (identical? os :linux)
+                    (identical? os :mac)))
 
 (def classes
-  {:default-classes '[clojure.lang.Delay
-                      clojure.lang.ExceptionInfo
-                      clojure.lang.IObj
-                      clojure.lang.IEditableCollection
-                      clojure.lang.LineNumberingPushbackReader
-                      clojure.lang.MapEntry
-                      clojure.lang.PersistentQueue
-                      java.io.BufferedReader
-                      java.io.BufferedWriter
-                      java.io.ByteArrayInputStream
-                      java.io.ByteArrayOutputStream
-                      java.io.File
-                      java.io.InputStream
-                      java.io.IOException
-                      java.io.OutputStream
-                      java.io.StringReader
-                      java.io.StringWriter
-                      java.lang.ArithmeticException
-                      java.lang.AssertionError
-                      java.lang.Boolean
-                      java.lang.Class
-                      java.lang.Double
-                      java.lang.Exception
-                      java.lang.Integer
-                      java.lang.Math
-                      java.util.concurrent.LinkedBlockingQueue
-                      java.lang.String
-                      java.lang.System
-                      java.lang.Throwable
-                      java.lang.Process
-                      java.lang.UNIXProcess
-                      java.lang.UNIXProcess$ProcessPipeOutputStream
-                      java.lang.ProcessBuilder
-                      java.lang.ProcessBuilder$Redirect
-                      java.net.URI
-                      java.net.HttpURLConnection
-                      java.net.ServerSocket
-                      java.net.Socket
-                      java.net.UnknownHostException
-                      java.net.URLEncoder
-                      java.net.URLDecoder
-                      java.nio.file.CopyOption
-                      java.nio.file.FileAlreadyExistsException
-                      java.nio.file.Files
-                      java.nio.file.LinkOption
-                      java.nio.file.NoSuchFileException
-                      java.nio.file.Path
-                      java.nio.file.Paths
-                      java.nio.file.StandardCopyOption
-                      java.nio.file.attribute.FileAttribute
-                      java.nio.file.attribute.FileTime
-                      java.nio.file.attribute.PosixFilePermission
-                      java.nio.file.attribute.PosixFilePermissions
-                      java.time.format.DateTimeFormatter
-                      java.time.Clock
-                      java.time.DateTimeException
-                      java.time.DayOfWeek
-                      java.time.Duration
-                      java.time.Instant
-                      java.time.LocalDate
-                      java.time.LocalDateTime
-                      java.time.LocalTime
-                      java.time.Month
-                      java.time.MonthDay
-                      java.time.OffsetDateTime
-                      java.time.OffsetTime
-                      java.time.Period
-                      java.time.Year
-                      java.time.YearMonth
-                      java.time.ZonedDateTime
-                      java.time.ZoneId
-                      java.time.ZoneOffset
-                      java.time.temporal.TemporalAccessor
-                      java.util.regex.Pattern
-                      java.util.Base64
-                      java.util.Base64$Decoder
-                      java.util.Base64$Encoder
-                      java.util.UUID
-                      java.util.concurrent.TimeUnit
-                      java.util.zip.InflaterInputStream
-                      java.util.zip.DeflaterInputStream
-                      java.util.zip.GZIPInputStream
-                      java.util.zip.GZIPOutputStream
-                      sun.nio.fs.UnixPath ;; included because of permission check
-                      sun.net.www.protocol.https.HttpsURLConnectionImpl ;; needed fo clj-http.lite
-                      sun.net.www.protocol.http.HttpURLConnection ;; needed for clj.http.lite http calls
-                      sun.net.www.protocol.http.HttpURLConnection$HttpInputStream ;; needed for clj-http.lite
-                      sun.net.www.http.PosterOutputStream ;; needed for clj-http.lite
-                      ]
-   :custom-classes {'java.lang.Thread
-                    {:allPublicConstructors true
-                     ;; generated with `public-declared-method-names`, see in
-                     ;; `comment` below
-                     :methods [{:name "activeCount"}
-                               {:name "checkAccess"}
-                               {:name "currentThread"}
-                               {:name "dumpStack"}
-                               {:name "enumerate"}
-                               {:name "getAllStackTraces"}
-                               {:name "getContextClassLoader"}
-                               {:name "getDefaultUncaughtExceptionHandler"}
-                               {:name "getId"}
-                               {:name "getName"}
-                               {:name "getPriority"}
-                               {:name "getStackTrace"}
-                               {:name "getState"}
-                               {:name "getThreadGroup"}
-                               {:name "getUncaughtExceptionHandler"}
-                               {:name "holdsLock"}
-                               {:name "interrupt"}
-                               {:name "interrupted"}
-                               {:name "isAlive"}
-                               {:name "isDaemon"}
-                               {:name "isInterrupted"}
-                               {:name "join"}
-                               {:name "run"}
-                               {:name "setContextClassLoader"}
-                               {:name "setDaemon"}
-                               {:name "setDefaultUncaughtExceptionHandler"}
-                               {:name "setName"}
-                               {:name "setPriority"}
-                               {:name "setUncaughtExceptionHandler"}
-                               {:name "sleep"}
-                               {:name "start"}
-                               {:name "toString"}
-                               {:name "yield"}]}
-                    'java.net.URL
-                    {:allPublicConstructors true
-                     :allPublicFields true
-                     ;; generated with `public-declared-method-names`, see in
-                     ;; `comment` below
-                     :methods [{:name "equals"}
-                               {:name "getAuthority"}
-                               {:name "getContent"}
-                               {:name "getDefaultPort"}
-                               {:name "getFile"}
-                               {:name "getHost"}
-                               {:name "getPath"}
-                               {:name "getPort"}
-                               {:name "getProtocol"}
-                               {:name "getQuery"}
-                               {:name "getRef"}
-                               {:name "getUserInfo"}
-                               {:name "hashCode"}
-                               {:name "openConnection"}
-                               {:name "openStream"}
-                               {:name "sameFile"}
-                               ;; not supported: {:name "setURLStreamHandlerFactory"}
-                               {:name "toExternalForm"}
-                               {:name "toString"}
-                               {:name "toURI"}]}}})
+  (cond->
+      '{:all [java.io.BufferedReader
+              java.io.BufferedWriter
+              java.io.ByteArrayInputStream
+              java.io.ByteArrayOutputStream
+              java.io.File
+              java.io.InputStream
+              java.io.IOException
+              java.io.OutputStream
+              java.io.StringReader
+              java.io.StringWriter
+              java.lang.ArithmeticException
+              java.lang.AssertionError
+              java.lang.Boolean
+              java.lang.Class
+              java.lang.Double
+              java.lang.Exception
+              java.lang.Integer
+              java.lang.Math
+              java.util.concurrent.LinkedBlockingQueue
+              java.lang.Object
+              java.lang.String
+              java.lang.System
+              java.lang.Throwable
+              java.lang.Process
+              java.lang.ProcessBuilder
+              java.lang.ProcessBuilder$Redirect
+              java.net.URI
+              java.net.HttpURLConnection
+              java.net.ServerSocket
+              java.net.Socket
+              java.net.UnknownHostException
+              java.net.URLEncoder
+              java.net.URLDecoder
+              java.nio.file.CopyOption
+              java.nio.file.FileAlreadyExistsException
+              java.nio.file.Files
+              java.nio.file.LinkOption
+              java.nio.file.NoSuchFileException
+              java.nio.file.Path
+              java.nio.file.Paths
+              java.nio.file.StandardCopyOption
+              java.nio.file.attribute.FileAttribute
+              java.nio.file.attribute.FileTime
+              java.nio.file.attribute.PosixFilePermission
+              java.nio.file.attribute.PosixFilePermissions
+              java.time.format.DateTimeFormatter
+              java.time.Clock
+              java.time.DateTimeException
+              java.time.DayOfWeek
+              java.time.Duration
+              java.time.Instant
+              java.time.LocalDate
+              java.time.LocalDateTime
+              java.time.LocalTime
+              java.time.Month
+              java.time.MonthDay
+              java.time.OffsetDateTime
+              java.time.OffsetTime
+              java.time.Period
+              java.time.Year
+              java.time.YearMonth
+              java.time.ZonedDateTime
+              java.time.ZoneId
+              java.time.ZoneOffset
+              java.time.temporal.TemporalAccessor
+              java.util.regex.Pattern
+              java.util.Base64
+              java.util.Base64$Decoder
+              java.util.Base64$Encoder
+              java.util.Date
+              java.util.UUID
+              java.util.concurrent.TimeUnit
+              java.util.zip.InflaterInputStream
+              java.util.zip.DeflaterInputStream
+              java.util.zip.GZIPInputStream
+              java.util.zip.GZIPOutputStream
+              ]
+        :constructors []
+        :methods [borkdude.graal.LockFix ;; support for locking
+                  sun.net.www.http.PosterOutputStream ;; support for clj-http-lite
+                  sun.net.www.protocol.https.HttpsURLConnectionImpl ;; support for clj-http-lite
+                  sun.net.www.protocol.http.HttpURLConnection$HttpInputStream ;; support for clj-http-lite
+                  ]
+        :fields [clojure.lang.PersistentQueue]
+        :instance-checks [clojure.lang.Delay
+                          clojure.lang.ExceptionInfo
+                          clojure.lang.IObj
+                          clojure.lang.IEditableCollection
+                          clojure.lang.LineNumberingPushbackReader
+                          clojure.lang.MapEntry]
+        :custom {clojure.lang.LineNumberingPushbackReader {:allPublicConstructors true
+                                                           :allPublicMethods true}
+                 java.lang.Thread
+                 {:allPublicConstructors true
+                  ;; generated with `public-declared-method-names`, see in
+                  ;; `comment` below
+                  :methods [{:name "activeCount"}
+                            {:name "checkAccess"}
+                            {:name "currentThread"}
+                            {:name "dumpStack"}
+                            {:name "enumerate"}
+                            {:name "getAllStackTraces"}
+                            {:name "getContextClassLoader"}
+                            {:name "getDefaultUncaughtExceptionHandler"}
+                            {:name "getId"}
+                            {:name "getName"}
+                            {:name "getPriority"}
+                            {:name "getStackTrace"}
+                            {:name "getState"}
+                            {:name "getThreadGroup"}
+                            {:name "getUncaughtExceptionHandler"}
+                            {:name "holdsLock"}
+                            {:name "interrupt"}
+                            {:name "interrupted"}
+                            {:name "isAlive"}
+                            {:name "isDaemon"}
+                            {:name "isInterrupted"}
+                            {:name "join"}
+                            {:name "run"}
+                            {:name "setContextClassLoader"}
+                            {:name "setDaemon"}
+                            {:name "setDefaultUncaughtExceptionHandler"}
+                            {:name "setName"}
+                            {:name "setPriority"}
+                            {:name "setUncaughtExceptionHandler"}
+                            {:name "sleep"}
+                            {:name "start"}
+                            {:name "toString"}
+                            {:name "yield"}]}
+                 java.net.URL
+                 {:allPublicConstructors true
+                  :allPublicFields true
+                  ;; generated with `public-declared-method-names`, see in
+                  ;; `comment` below
+                  :methods [{:name "equals"}
+                            {:name "getAuthority"}
+                            {:name "getContent"}
+                            {:name "getDefaultPort"}
+                            {:name "getFile"}
+                            {:name "getHost"}
+                            {:name "getPath"}
+                            {:name "getPort"}
+                            {:name "getProtocol"}
+                            {:name "getQuery"}
+                            {:name "getRef"}
+                            {:name "getUserInfo"}
+                            {:name "hashCode"}
+                            {:name "openConnection"}
+                            {:name "openStream"}
+                            {:name "sameFile"}
+                            ;; not supported: {:name "setURLStreamHandlerFactory"}
+                            {:name "toExternalForm"}
+                            {:name "toString"}
+                            {:name "toURI"}]}}}
+    unix-like? (->
+                (update :methods conj 'sun.nio.fs.UnixPath)
+                (update :all conj
+                        'java.lang.UNIXProcess
+                        'java.lang.UNIXProcess$ProcessPipeOutputStream))))
 
 (defmacro gen-class-map []
-  (let [classes (concat (:default-classes classes)
-                        (keys (:custom-classes classes)))]
+  (let [classes (concat (:all classes)
+                        (keys (:custom classes))
+                        (:constructors classes)
+                        (:methods classes)
+                        (:fields classes)
+                        (:instance-checks classes))]
     (apply hash-map
            (for [c classes
                  c [(list 'quote c) c]]
@@ -166,22 +188,31 @@
 
 (def class-map (gen-class-map))
 
-#_(defn sym->class-name [sym]
-  (-> sym str (str/replace "$" ".")))
-
 (defn generate-reflection-file
   "Generate reflection.json file"
   [& args]
-  (let [entries (vec (for [c (sort (:default-classes classes))
+  (let [entries (vec (for [c (sort (:all classes))
                            :let [class-name (str c)]]
                        {:name class-name
                         :allPublicMethods true
                         :allPublicFields true
                         :allPublicConstructors true}))
-        custom-entries (for [[c v] (:custom-classes classes)
+        constructors (vec (for [c (sort (:constructors classes))
+                                :let [class-name (str c)]]
+                            {:name class-name
+                             :allPublicConstructors true}))
+        methods (vec (for [c (sort (:methods classes))
+                           :let [class-name (str c)]]
+                       {:name class-name
+                        :allPublicMethods true}))
+        fields (vec (for [c (sort (:fields classes))
+                          :let [class-name (str c)]]
+                      {:name class-name
+                       :allPublicFields true}))
+        custom-entries (for [[c v] (:custom classes)
                              :let [class-name (str c)]]
                          (assoc v :name class-name))
-        all-entries (concat entries custom-entries)]
+        all-entries (concat entries constructors methods fields custom-entries)]
     (spit (or
            (first args)
            "reflection.json") (json/generate-string all-entries {:pretty true}))))
diff --git a/src/babashka/impl/clojure/core.clj b/src/babashka/impl/clojure/core.clj
index f3484565..d3a69ee4 100644
--- a/src/babashka/impl/clojure/core.clj
+++ b/src/babashka/impl/clojure/core.clj
@@ -1,6 +1,10 @@
 (ns babashka.impl.clojure.core
   {:no-doc true}
-  (:refer-clojure :exclude [future]))
+  (:refer-clojure :exclude [future])
+  (:require [borkdude.graal.locking :as locking]))
+
+(defn locking* [form bindings v f & args]
+  (apply @#'locking/locking form bindings v f args))
 
 (def core-extras
   {'file-seq file-seq
@@ -10,6 +14,7 @@
    'send-off send-off
    'promise promise
    'deliver deliver
+   'locking (with-meta locking* {:sci/macro true})
    'shutdown-agents shutdown-agents
    'slurp slurp
    'spit spit
diff --git a/src/babashka/main.clj b/src/babashka/main.clj
index a1318f4c..70b54f29 100644
--- a/src/babashka/main.clj
+++ b/src/babashka/main.clj
@@ -307,6 +307,7 @@ Everything after that is bound to *command-line-args*."))
                         Integer java.lang.Integer
                         File java.io.File
                         Math java.lang.Math
+                        Object java.lang.Object
                         ProcessBuilder java.lang.ProcessBuilder
                         String java.lang.String
                         System java.lang.System
diff --git a/test/babashka/http_connection_test.clj b/test/babashka/http_connection_test.clj
new file mode 100644
index 00000000..40f3a7c2
--- /dev/null
+++ b/test/babashka/http_connection_test.clj
@@ -0,0 +1,21 @@
+(ns babashka.http-connection-test
+  (:require
+   [babashka.test-utils :as tu]
+   [clojure.test :as t :refer [deftest is]]
+   [clojure.string :as str]))
+
+(defn bb [& args]
+  (apply tu/bb nil (map str args)))
+
+(deftest open-connection-test
+  (is (= "\"1\"" (str/trim (bb "-e" "
+(require '[cheshire.core :as json])
+(let [conn (.openConnection (java.net.URL. \"https://postman-echo.com/get?foo=1\"))]
+  (.setConnectTimeout conn 1000)
+  (.setRequestProperty conn \"Content-Type\" \"application/json\") ;; nonsensical, but to test if this method exists
+  (.connect conn)
+  (let [is (.getInputStream conn)
+        err (.getErrorStream conn)
+        response (json/decode (slurp is) true)]
+    (-> response :args :foo)))
+")))))