Category Archives: Scala

Print stacktraces for all threads on shutdown

April 22, 2020debugging, JAVA, JVM, Scalatobias

If your microservice stops responding from time to time, and they only way out is to kill it with SIGINT or SIGTERM then adding a shutdown hook might be the way to go. Do note that this will not work if you kill the process with SIGKILL (-9), cause that will result in an unclean shutdown.

Some of this code is heavily influenced by Print all of the thread’s information and stack traces : Exception « Development « Java Tutorial. But has been translated into Scala, and cleaned up a little.

import java.io.PrintWriter
import java.lang.management.ManagementFactory

object TryOutShutdownHook {


  def doStuff() = {
    (1 to 1000).foreach( _ => {
      print(".")
      Thread.sleep(1000)
    })
  }


  def main(args: Array[String]): Unit = {
    sys.addShutdownHook({
      println("Shutdown hook!")
      ThreadUtils.printThreadInfo(new PrintWriter(System.out),"Threads during shutdown")
    })

    doStuff()

  }
}



object ThreadUtils {

  private val threadBean = ManagementFactory.getThreadMXBean

  def setContentionTracing(on: Boolean): Unit = {
    threadBean.setThreadContentionMonitoringEnabled( on )
  }

  private def getTaskName(id: Long, name: String): String = {
    if (name == null) id.toString
    else id + " (" + name + ")"
  }

  /**
   * Print all of the thread's information and stack traces.
   *
   * @param stream
   * the stream to
   * @param title
   * a string title for the stack trace
   */
  def printThreadInfo(stream: PrintWriter, title: String): Unit = {
    val STACK_DEPTH = 20
    val contention = threadBean.isThreadContentionMonitoringEnabled
    val threadIds = threadBean.getAllThreadIds
    stream.println("Process Thread Dump: " + title)
    stream.println(threadIds.length + " active threads")
    for (tid <- threadIds) {
      val info = threadBean.getThreadInfo(tid, STACK_DEPTH)
      if (info == null) {
        stream.println("  Inactive")
      } else {
        stream.println("Thread " + getTaskName(info.getThreadId, info.getThreadName) + ":")
        val state = info.getThreadState
        stream.println("  State: " + state)
        stream.println("  Blocked count: " + info.getBlockedCount)
        stream.println("  Waited count: " + info.getWaitedCount)
        if (contention) {
          stream.println("  Blocked time: " + info.getBlockedTime)
          stream.println("  Waited time: " + info.getWaitedTime)
        }
        if (state eq Thread.State.WAITING) stream.println("  Waiting on " + info.getLockName)
        else if (state eq Thread.State.BLOCKED) {
          stream.println("  Blocked on " + info.getLockName)
          stream.println("  Blocked by " + getTaskName(info.getLockOwnerId, info.getLockOwnerName))
        }
        stream.println("  Stack:")
        for (frame <- info.getStackTrace) {
          stream.println("    " + frame.toString)
        }
      }
    }
    stream.flush()
  }
}

import java.io.PrintWriter

import java.lang.management.ManagementFactory

object TryOutShutdownHook {

def doStuff() = {

(1 to 1000).foreach( _ => {

print(".")

Thread.sleep(1000)

})

}

def main(args: Array[String]): Unit = {

sys.addShutdownHook({

println("Shutdown hook!")

ThreadUtils.printThreadInfo(new PrintWriter(System.out),"Threads during shutdown")

})

doStuff()

}

object ThreadUtils {

private val threadBean = ManagementFactory.getThreadMXBean

def setContentionTracing(on: Boolean): Unit = {

threadBean.setThreadContentionMonitoringEnabled( on )

}

private def getTaskName(id: Long, name: String): String = {

if (name == null) id.toString

else id + " (" + name + ")"

}

/**

* Print all of the thread's information and stack traces.

* @param stream

* the stream to

* @param title

* a string title for the stack trace

def printThreadInfo(stream: PrintWriter, title: String): Unit = {

val STACK_DEPTH = 20

val contention = threadBean.isThreadContentionMonitoringEnabled

val threadIds = threadBean.getAllThreadIds

stream.println("Process Thread Dump: " + title)

stream.println(threadIds.length + " active threads")

for (tid <- threadIds) {

val info = threadBean.getThreadInfo(tid, STACK_DEPTH)

if (info == null) {

stream.println(" Inactive")

} else {

stream.println("Thread " + getTaskName(info.getThreadId, info.getThreadName) + ":")

val state = info.getThreadState

stream.println(" State: " + state)

stream.println(" Blocked count: " + info.getBlockedCount)

stream.println(" Waited count: " + info.getWaitedCount)

if (contention) {

stream.println(" Blocked time: " + info.getBlockedTime)

stream.println(" Waited time: " + info.getWaitedTime)

}

if (state eq Thread.State.WAITING) stream.println(" Waiting on " + info.getLockName)

else if (state eq Thread.State.BLOCKED) {

stream.println(" Blocked on " + info.getLockName)

stream.println(" Blocked by " + getTaskName(info.getLockOwnerId, info.getLockOwnerName))

}

stream.println(" Stack:")

for (frame <- info.getStackTrace) {

stream.println(" " + frame.toString)

}

stream.flush()

}

The output would look something like this

...........................Shutdown hook!
Process Thread Dump: Threads during shutdown
8 active threads
Thread 11 (shutdownHook1):
  State: RUNNABLE
  Blocked count: 0
  Waited count: 0
  Stack:
    sun.management.ThreadImpl.getThreadInfo1(Native Method)
    sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:178)
    sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:139)
    ThreadUtils$.$anonfun$printThreadInfo$1(TryOutShutdownHook.scala:56)
    ThreadUtils$$$Lambda$7/1354382162.apply$mcVJ$sp(Unknown Source)
    scala.runtime.java8.JFunction1$mcVJ$sp.apply(JFunction1$mcVJ$sp.java:23)
    scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)
    scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)
    scala.collection.mutable.ArrayOps$ofLong.foreach(ArrayOps.scala:258)
    ThreadUtils$.printThreadInfo(TryOutShutdownHook.scala:55)
    TryOutShutdownHook$.$anonfun$main$1(TryOutShutdownHook.scala:18)
    TryOutShutdownHook$$$Lambda$1/728890494.apply$mcV$sp(Unknown Source)
    scala.sys.ShutdownHookThread$$anon$1.run(ShutdownHookThread.scala:37)
Thread 13 (SIGTERM handler):
  State: WAITING
  Blocked count: 0
  Waited count: 1
  Waiting on scala.sys.ShutdownHookThread$$anon$1@506c589e
  Stack:
    java.lang.Object.wait(Native Method)
    java.lang.Thread.join(Thread.java:1252)
    java.lang.Thread.join(Thread.java:1326)
    java.lang.ApplicationShutdownHooks.runHooks(ApplicationShutdownHooks.java:107)
    java.lang.ApplicationShutdownHooks$1.run(ApplicationShutdownHooks.java:46)
    java.lang.Shutdown.runHooks(Shutdown.java:123)
    java.lang.Shutdown.sequence(Shutdown.java:167)
    java.lang.Shutdown.exit(Shutdown.java:212)
    java.lang.Terminator$1.handle(Terminator.java:52)
    sun.misc.Signal$1.run(Signal.java:212)
    java.lang.Thread.run(Thread.java:748)
Thread 12 (Attach Listener):
  State: RUNNABLE
  Blocked count: 0
  Waited count: 0
  Stack:
Thread 5 (Monitor Ctrl-Break):
  State: RUNNABLE
  Blocked count: 0
  Waited count: 0
  Stack:
    java.net.SocketInputStream.socketRead0(Native Method)
    java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
    java.net.SocketInputStream.read(SocketInputStream.java:171)
    java.net.SocketInputStream.read(SocketInputStream.java:141)
    sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
    sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
    sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
    java.io.InputStreamReader.read(InputStreamReader.java:184)
    java.io.BufferedReader.fill(BufferedReader.java:161)
    java.io.BufferedReader.readLine(BufferedReader.java:324)
    java.io.BufferedReader.readLine(BufferedReader.java:389)
    com.intellij.rt.execution.application.AppMainV2$1.run(AppMainV2.java:64)
Thread 4 (Signal Dispatcher):
  State: RUNNABLE
  Blocked count: 0
  Waited count: 0
  Stack:
Thread 3 (Finalizer):
  State: WAITING
  Blocked count: 1
  Waited count: 2
  Waiting on java.lang.ref.ReferenceQueue$Lock@79c01878
  Stack:
    java.lang.Object.wait(Native Method)
    java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
    java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:165)
    java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:216)
Thread 2 (Reference Handler):
  State: WAITING
  Blocked count: 1
  Waited count: 1
  Waiting on java.lang.ref.Reference$Lock@2b1227e6
  Stack:
    java.lang.Object.wait(Native Method)
    java.lang.Object.wait(Object.java:502)
    java.lang.ref.Reference.tryHandlePending(Reference.java:191)
    java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
Thread 1 (main):
  State: TIMED_WAITING
  Blocked count: 0
  Waited count: 27
  Stack:
    java.lang.Thread.sleep(Native Method)
    TryOutShutdownHook$.$anonfun$doStuff$1(TryOutShutdownHook.scala:10)
    TryOutShutdownHook$$$Lambda$6/2047526627.apply$mcVI$sp(Unknown Source)
    scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:158)
    TryOutShutdownHook$.doStuff(TryOutShutdownHook.scala:8)
    TryOutShutdownHook$.main(TryOutShutdownHook.scala:21)
    TryOutShutdownHook.main(TryOutShutdownHook.scala)

Process finished with exit code 143 (interrupted by signal 15: SIGTERM)

...........................Shutdown hook!

Process Thread Dump: Threads during shutdown

8 active threads

Thread 11 (shutdownHook1):

State: RUNNABLE

Blocked count: 0

Waited count: 0

Stack:

sun.management.ThreadImpl.getThreadInfo1(Native Method)

sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:178)

sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:139)

ThreadUtils$.$anonfun$printThreadInfo$1(TryOutShutdownHook.scala:56)

ThreadUtils$$$Lambda$7/1354382162.apply$mcVJ$sp(Unknown Source)

scala.runtime.java8.JFunction1$mcVJ$sp.apply(JFunction1$mcVJ$sp.java:23)

scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)

scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)

scala.collection.mutable.ArrayOps$ofLong.foreach(ArrayOps.scala:258)

ThreadUtils$.printThreadInfo(TryOutShutdownHook.scala:55)

TryOutShutdownHook$.$anonfun$main$1(TryOutShutdownHook.scala:18)

TryOutShutdownHook$$$Lambda$1/728890494.apply$mcV$sp(Unknown Source)

scala.sys.ShutdownHookThread$$anon$1.run(ShutdownHookThread.scala:37)

Thread 13 (SIGTERM handler):

State: WAITING

Blocked count: 0

Waited count: 1

Waiting on scala.sys.ShutdownHookThread$$anon$1@506c589e

Stack:

java.lang.Object.wait(Native Method)

java.lang.Thread.join(Thread.java:1252)

java.lang.Thread.join(Thread.java:1326)

java.lang.ApplicationShutdownHooks.runHooks(ApplicationShutdownHooks.java:107)

java.lang.ApplicationShutdownHooks$1.run(ApplicationShutdownHooks.java:46)

java.lang.Shutdown.runHooks(Shutdown.java:123)

java.lang.Shutdown.sequence(Shutdown.java:167)

java.lang.Shutdown.exit(Shutdown.java:212)

java.lang.Terminator$1.handle(Terminator.java:52)

sun.misc.Signal$1.run(Signal.java:212)

java.lang.Thread.run(Thread.java:748)

Thread 12 (Attach Listener):

State: RUNNABLE

Blocked count: 0

Waited count: 0

Stack:

Thread 5 (Monitor Ctrl-Break):

State: RUNNABLE

Blocked count: 0

Waited count: 0

Stack:

java.net.SocketInputStream.socketRead0(Native Method)

java.net.SocketInputStream.socketRead(SocketInputStream.java:116)

java.net.SocketInputStream.read(SocketInputStream.java:171)

java.net.SocketInputStream.read(SocketInputStream.java:141)

sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)

sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)

sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)

java.io.InputStreamReader.read(InputStreamReader.java:184)

java.io.BufferedReader.fill(BufferedReader.java:161)

java.io.BufferedReader.readLine(BufferedReader.java:324)

java.io.BufferedReader.readLine(BufferedReader.java:389)

com.intellij.rt.execution.application.AppMainV2$1.run(AppMainV2.java:64)

Thread 4 (Signal Dispatcher):

State: RUNNABLE

Blocked count: 0

Waited count: 0

Stack:

Thread 3 (Finalizer):

State: WAITING

Blocked count: 1

Waited count: 2

Waiting on java.lang.ref.ReferenceQueue$Lock@79c01878

Stack:

java.lang.Object.wait(Native Method)

java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)

java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:165)

java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:216)

Thread 2 (Reference Handler):

State: WAITING

Blocked count: 1

Waited count: 1

Waiting on java.lang.ref.Reference$Lock@2b1227e6

Stack:

java.lang.Object.wait(Native Method)

java.lang.Object.wait(Object.java:502)

java.lang.ref.Reference.tryHandlePending(Reference.java:191)

java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)

Thread 1 (main):

State: TIMED_WAITING

Blocked count: 0

Waited count: 27

Stack:

java.lang.Thread.sleep(Native Method)

TryOutShutdownHook$.$anonfun$doStuff$1(TryOutShutdownHook.scala:10)

TryOutShutdownHook$$$Lambda$6/2047526627.apply$mcVI$sp(Unknown Source)

scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:158)

TryOutShutdownHook$.doStuff(TryOutShutdownHook.scala:8)

TryOutShutdownHook$.main(TryOutShutdownHook.scala:21)

TryOutShutdownHook.main(TryOutShutdownHook.scala)

Process finished with exit code 143 (interrupted by signal 15: SIGTERM)

Cassandra set the writetime explicitly with a PreparedStatement

March 16, 2016Cassandra, JAVA, Scalatobias

This is a quick one, I wanted to set the writetime of a row explicitly when I populate the database for testing purposes. We use the writetime of a column to filter them out.

It required some looking around to find out how to do this…. so I figured I write an article about it.

INSERT INTO invoices (invoice_id,amount,tax,description) VALUES ('333',10,3,'ice-cream') USING TIMESTAMP 1458134077121;

1	INSERT INTO invoices (invoice_id,amount,tax,description) VALUES ('333',10,3,'ice-cream') USING TIMESTAMP 1458134077121;

The timestamp will be set for ALL cells in this row (well not the primary key, cause it does not have a timestamp, but the others).

The timestamp is given as millisecondsÂ since EPOC, so lots of digitsÂ :-).

A prepared statement would then look like this (Scala code)

val cql = "INSERT INTO invoices (invoice_id,amount,tax,description) VALUES (?,?,?,?) USING TIMESTAMP ?;"

val stmt = session.prepare( cql )

val bs = stmt.bind()

bs.setString("invoice_id", "333" )

bs.setLong("amount", 10L )

bs.setLong("tax", 3L )

bs.setString("description","ice-cream")

bs.setLong("[timestamp]", 1458134077121L )

val result = Â session.execute( bs )

val cql = "INSERT INTO invoices (invoice_id,amount,tax,description) VALUES (?,?,?,?) USING TIMESTAMP ?;"

val stmt = session.prepare( cql )

val bs = stmt.bind()

bs.setString("invoice_id", "333" )

bs.setLong("amount", 10L )

bs.setLong("tax", 3L )

bs.setString("description","ice-cream")

bs.setLong("[timestamp]", 1458134077121L )

val result = Â session.execute( bs )

TTL and TIMESTAMP can both be set like this, i.e. with [ttl] and [timestamp]

-Tobias

SBT Good to know…

November 5, 2015SBT, Scalatobias

Dependecy problems

I have been having some difficulties figuring out what depends on what. I found the following set plugins which I think can be really helpful;

https://github.com/jrudolph/sbt-dependency-graph

and

https://github.com/gilt/sbt-dependency-graph-sugar

Be sure to install GraphWiz first, I used Homebrew on my Mac

brew install graphviz

and I also had to create a config file

mkdir ~/.sbt/gilt
vi ~/.sbt/gilt/sbt-dependency-graph-sugar-cmd

1 2	mkdir ~/.sbt/gilt vi ~/.sbt/gilt/sbt-dependency-graph-sugar-cmd

with the following content

open -a Safari $1

1	open -a Safari $1

The readme explains how to use it pretty well, simply start sbtÂ CLI

Tobiass-MBP:projectX tobias$ sbt
[info] Loading global plugins from /Users/tobias/.sbt/0.13/plugins
[info] Updating {file:/Users/tobias/.sbt/0.13/plugins/}global-plugins...
Waiting for lock on /Users/tobias/.ivy2/.sbt.ivy.lock to be available...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Loading project definition from /Users/tobias/qvantel/projectX/project
Waiting for lock on /Users/tobias/.ivy2/.sbt.ivy.lock to be available...
[info] Set current project to projectX (in build file:/Users/tobias/qvantel/projectX/)
> dependencySvgView

Tobiass-MBP:projectX tobias$ sbt

[info] Loading global plugins from /Users/tobias/.sbt/0.13/plugins

[info] Updating {file:/Users/tobias/.sbt/0.13/plugins/}global-plugins...

Waiting for lock on /Users/tobias/.ivy2/.sbt.ivy.lock to be available...

[info] Resolving org.fusesource.jansi#jansi;1.4 ...

[info] Done updating.

[info] Loading project definition from /Users/tobias/qvantel/projectX/project

Waiting for lock on /Users/tobias/.ivy2/.sbt.ivy.lock to be available...

[info] Set current project to projectX (in build file:/Users/tobias/qvantel/projectX/)

> dependencySvgView

It will give you a graph that looks something like this (it is in SVG format so it is searchable!!!) Now you should see which package/jar is using which, and also where the different versions clash…

Show the class path for the run command

Tobiass-MBP:projectX tobias$ sbt
[info] Loading global plugins from /Users/tobias/.sbt/0.13/plugins
[info] Loading project definition from /Users/tobias/qvantel/projectX/project
[info] Set current project to projectX (in build file:/Users/tobias/qvantel/projectX/)
> show runtime:fullClasspath
[info] Updating {file:/Users/tobias/qvantel/projectX/}projectx...
[info] Resolving jline#jline;2.12.1 ...
[info] Done updating.
[info] List(Attributed(/Users/tobias/qvantel/projectX/target/scala-2.11/classes), Attributed(/Users/tobias/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.7.jar), Attributed(/Users/tobias/.ivy2/cache/org.slf4j/slf4j-api/jars/slf4j-api-1.7.10.jar), Attributed(/Users/tobias/.ivy2/cache/ch.qos.logback/logback-core/jars/logback-core-1.1.3.jar), Attributed(/Users/tobias/.ivy2/cache/ch.qos.logback/logback-classic/jars/logback-classic-1.1.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-core_2.11/jars/kamon-core_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/com.typesafe.akka/akka-actor_2.11/jars/akka-actor_2.11-2.3.14.jar), Attributed(/Users/tobias/.ivy2/cache/com.typesafe/config/bundles/config-1.2.1.jar), Attributed(/Users/tobias/.ivy2/cache/org.hdrhistogram/HdrHistogram/bundles/HdrHistogram-2.1.7.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-akka_2.11/jars/kamon-akka_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-scala_2.11/jars/kamon-scala_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-spray_2.11/jars/kamon-spray_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-can_2.11/bundles/spray-can_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-io_2.11/bundles/spray-io_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-util_2.11/bundles/spray-util_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-http_2.11/bundles/spray-http_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/org.parboiled/parboiled-scala_2.11/jars/parboiled-scala_2.11-1.1.7.jar), Attributed(/Users/tobias/.ivy2/cache/org.parboiled/parboiled-core/jars/parboiled-core-1.1.7.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-client_2.11/bundles/spray-client_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-httpx_2.11/bundles/spray-httpx_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/org.scala-lang.modules/scala-xml_2.11/bundles/scala-xml_2.11-1.0.3.jar), Attributed(/Users/tobias/.ivy2/cache/org.jvnet.mimepull/mimepull/jars/mimepull-1.9.5.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-routing_2.11/bundles/spray-routing_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/com.chuusai/shapeless_2.11/jars/shapeless_2.11-1.2.4.jar), Attributed(/Users/tobias/.ivy2/cache/org.aspectj/aspectjweaver/jars/aspectjweaver-1.8.7.jar))
[success] Total time: 1 s, completed Nov 5, 2015 10:21:30 AM
> 
>

Tobiass-MBP:projectX tobias$ sbt

[info] Loading global plugins from /Users/tobias/.sbt/0.13/plugins

[info] Loading project definition from /Users/tobias/qvantel/projectX/project

[info] Set current project to projectX (in build file:/Users/tobias/qvantel/projectX/)

> show runtime:fullClasspath

[info] Updating {file:/Users/tobias/qvantel/projectX/}projectx...

[info] Resolving jline#jline;2.12.1 ...

[info] Done updating.

[info] List(Attributed(/Users/tobias/qvantel/projectX/target/scala-2.11/classes), Attributed(/Users/tobias/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.7.jar), Attributed(/Users/tobias/.ivy2/cache/org.slf4j/slf4j-api/jars/slf4j-api-1.7.10.jar), Attributed(/Users/tobias/.ivy2/cache/ch.qos.logback/logback-core/jars/logback-core-1.1.3.jar), Attributed(/Users/tobias/.ivy2/cache/ch.qos.logback/logback-classic/jars/logback-classic-1.1.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-core_2.11/jars/kamon-core_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/com.typesafe.akka/akka-actor_2.11/jars/akka-actor_2.11-2.3.14.jar), Attributed(/Users/tobias/.ivy2/cache/com.typesafe/config/bundles/config-1.2.1.jar), Attributed(/Users/tobias/.ivy2/cache/org.hdrhistogram/HdrHistogram/bundles/HdrHistogram-2.1.7.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-akka_2.11/jars/kamon-akka_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-scala_2.11/jars/kamon-scala_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/io.kamon/kamon-spray_2.11/jars/kamon-spray_2.11-0.5.2.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-can_2.11/bundles/spray-can_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-io_2.11/bundles/spray-io_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-util_2.11/bundles/spray-util_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-http_2.11/bundles/spray-http_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/org.parboiled/parboiled-scala_2.11/jars/parboiled-scala_2.11-1.1.7.jar), Attributed(/Users/tobias/.ivy2/cache/org.parboiled/parboiled-core/jars/parboiled-core-1.1.7.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-client_2.11/bundles/spray-client_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-httpx_2.11/bundles/spray-httpx_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/org.scala-lang.modules/scala-xml_2.11/bundles/scala-xml_2.11-1.0.3.jar), Attributed(/Users/tobias/.ivy2/cache/org.jvnet.mimepull/mimepull/jars/mimepull-1.9.5.jar), Attributed(/Users/tobias/.ivy2/cache/io.spray/spray-routing_2.11/bundles/spray-routing_2.11-1.3.3.jar), Attributed(/Users/tobias/.ivy2/cache/com.chuusai/shapeless_2.11/jars/shapeless_2.11-1.2.4.jar), Attributed(/Users/tobias/.ivy2/cache/org.aspectj/aspectjweaver/jars/aspectjweaver-1.8.7.jar))

[success] Total time: 1 s, completed Nov 5, 2015 10:21:30 AM

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Tobias – With a Passion For Software Development

Category Archives: Scala

Print stacktraces for all threads on shutdown

Cassandra set the writetime explicitly with a PreparedStatement

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Show the class path for the run command