merge: Increase minimum Java version to 17 (#115)

This pull request increases the minimum version of Java required by OpenDC to 17.
This new version of Java introduces several new features compared to our old minimum 
version (11), which we attempt to apply in this conversion.

## Implementation Notes :hammer_and_pick:

* Increase minimum Java version to Java 17 
* Use RandomGenerator as randomness source 
* Add common dispatcher interface 
* Add compatibility with Kotlin coroutines
* Use InstantSource as time source
* Re-implement SimulationScheduler as Dispatcher 
* Replace use of CoroutineContext by Dispatcher 

## External Dependencies :four_leaf_clover:

* Java 17

## Breaking API Changes :warning:

* The use of `CoroutineContext` and `Clock` as parameters of classes has been replaced 
  by the `Dispatcher` interface.
* The use of `Clock` has been replaced by `InstantSource` which does not carry time
   zone info.
* The use of `Random` and `SplittableRandom` as parameter type has been replaced 
   by `RandomGenerator`

2 files changed, 9 insertions, 9 deletions

diff --git a/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSinkTest.kt b/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSinkTest.kt
index 8b4ebb89..181d9a20 100644
--- a/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSinkTest.kt
+++ b/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSinkTest.kt
@@ -43,7 +43,7 @@ import org.opendc.simulator.kotlin.runSimulation
 class SimNetworkSinkTest {
     @Test
     fun testInitialState() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
 
@@ -56,7 +56,7 @@ class SimNetworkSinkTest {
 
     @Test
     fun testDisconnectIdempotent() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
 
@@ -66,7 +66,7 @@ class SimNetworkSinkTest {
 
     @Test
     fun testConnectCircular() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
 
@@ -77,7 +77,7 @@ class SimNetworkSinkTest {
 
     @Test
     fun testConnectAlreadyConnectedTarget() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
         val source = mockk<SimNetworkPort>(relaxUnitFun = true)
@@ -90,7 +90,7 @@ class SimNetworkSinkTest {
 
     @Test
     fun testConnectAlreadyConnected() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
         val source1 = TestSource(graph)
@@ -107,7 +107,7 @@ class SimNetworkSinkTest {
 
     @Test
     fun testConnect() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
         val source = TestSource(graph)
@@ -127,7 +127,7 @@ class SimNetworkSinkTest {
 
     @Test
     fun testDisconnect() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
         val source = TestSource(graph)
diff --git a/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSwitchVirtualTest.kt b/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSwitchVirtualTest.kt
index 1507c4a1..4a489478 100644
--- a/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSwitchVirtualTest.kt
+++ b/opendc-simulator/opendc-simulator-network/src/test/kotlin/org/opendc/simulator/network/SimNetworkSwitchVirtualTest.kt
@@ -38,7 +38,7 @@ import org.opendc.simulator.kotlin.runSimulation
 class SimNetworkSwitchVirtualTest {
     @Test
     fun testConnect() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
         val source = TestSource(graph)
@@ -60,7 +60,7 @@ class SimNetworkSwitchVirtualTest {
 
     @Test
     fun testConnectClosedPort() = runSimulation {
-        val engine = FlowEngine.create(coroutineContext, clock)
+        val engine = FlowEngine.create(dispatcher)
         val graph = engine.newGraph()
         val sink = SimNetworkSink(graph, /*capacity*/ 100.0f)
         val switch = SimNetworkSwitchVirtual(graph)