From 1bf7e2383e86d78a6357c299c2d51f96b92d7de7 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Thu, 30 Jul 2026 17:30:26 -0400
Subject: [PATCH] Fix Webswing font startup; make spike script blocking with
 clean teardown

Two font problems, both now fixed and both verified against a real browser
session driving the actual Webswing app JVM.

1. "Fontconfig head is null" killed the app JVM at startup. OpenJDK 9+ stopped
   shipping lib/fontconfig.bfc and queries libfontconfig at runtime instead, but
   Webswing's WebFontConfiguration still extends the legacy
   sun.awt.FontConfiguration, which needs the old properties file. Fixed by
   generating one (scripts/gen-fontconfig.sh, driven by fc-match so it adapts to
   the host) and pointing the app JVM at it via -Dsun.awt.fontconfig. After this
   the JVM starts, WebGraphicsEnvironment11 initialises headless, and MegaMek
   begins loading.

2. Webswing Lite then skipped all 12 font faces: "Font file outside trusted
   directory". Fixed with -Dwebswing.trustedFontDirs=/usr/share/fonts.

start.sh is now blocking: Webswing runs under setsid in the background, the
MegaMek host runs in the foreground, and the script exits when the game reaches
VICTORY. A trap on INT/TERM/EXIT kills the Webswing process group (catching the
spawned client) and the host. HostForHuman gained VICTORY detection with a
result summary, per-round progress logging, and a shutdown hook so Ctrl-C
releases the port instead of orphaning a JVM.

webswing.config is now generated from a template at startup so absolute paths
match the checkout rather than being hardcoded.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---
 harness/src/spike/HostForHuman.java     |  39 ++++++-
 scripts/gen-fontconfig.sh               |  80 ++++++++++++++
 spike-webswing/fontconfig.properties    |  38 +++++++
 spike-webswing/start.sh                 | 136 +++++++++++++++++-------
 spike-webswing/webswing.config          |  33 ------
 spike-webswing/webswing.config.template |  36 +++++++
 6 files changed, 289 insertions(+), 73 deletions(-)
 create mode 100755 scripts/gen-fontconfig.sh
 create mode 100644 spike-webswing/fontconfig.properties
 delete mode 100644 spike-webswing/webswing.config
 create mode 100644 spike-webswing/webswing.config.template

diff --git a/harness/src/spike/HostForHuman.java b/harness/src/spike/HostForHuman.java
index 67470b4..3c1b1d8 100644
--- a/harness/src/spike/HostForHuman.java
+++ b/harness/src/spike/HostForHuman.java
@@ -7,6 +7,7 @@ import java.util.List;
 import megamek.client.bot.princess.Princess;
 import megamek.common.Player;
 import megamek.common.compute.Compute;
+import megamek.common.enums.GamePhase;
 import megamek.common.game.IGame;
 import megamek.common.loaders.MekSummaryCache;
 import megamek.common.scenario.Scenario;
@@ -89,10 +90,39 @@ public final class HostForHuman {
         System.out.println("[host] bots connected; waiting for a human to claim "
               + humanSlot.getName() + " ...");
 
+        // Ctrl-C (or the wrapper script's cleanup) must tear the server down, not
+        // leave an orphaned JVM holding the port.
+        Runtime.getRuntime().addShutdownHook(new Thread(() -> {
+            System.out.println("\n[host] shutting down ...");
+            try {
+                server.die();
+            } catch (Exception ignored) {
+                // best effort
+            }
+        }, "host-shutdown"));
+
         // Hold the bots in the lounge until the human slot is actually occupied.
         boolean announced = false;
+        int lastRound = -1;
         while (true) {
-            Player current = server.getGame().getPlayer(humanSlot.getId());
+            IGame live = server.getGame();
+
+            if (live.getPhase() == GamePhase.VICTORY) {
+                System.out.println("\n=================================================");
+                System.out.println(" GAME OVER (round " + live.getCurrentRound() + ")");
+                for (Player p : live.getPlayersList()) {
+                    System.out.printf("   %-16s units remaining: %d%n",
+                          p.getName(), live.getEntitiesOwnedBy(p));
+                }
+                System.out.println("=================================================");
+                // Give the clients a moment to render the victory report before the
+                // server goes away underneath them.
+                Thread.sleep(5000L);
+                server.die();
+                System.exit(0);
+            }
+
+            Player current = live.getPlayer(humanSlot.getId());
             if (current != null && !current.isGhost()) {
                 if (!announced) {
                     System.out.println("[host] human connected -> readying bots. "
@@ -107,6 +137,13 @@ public final class HostForHuman {
                 System.out.println("[host] human disconnected; waiting again ...");
                 announced = false;
             }
+
+            int round = live.getCurrentRound();
+            if (round != lastRound && round > 0) {
+                System.out.printf("[host] round %d (%s)%n", round, live.getPhase());
+                lastRound = round;
+            }
+
             Thread.sleep(1000L);
         }
     }
diff --git a/scripts/gen-fontconfig.sh b/scripts/gen-fontconfig.sh
new file mode 100755
index 0000000..30770fd
--- /dev/null
+++ b/scripts/gen-fontconfig.sh
@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+# Generate a legacy-format fontconfig.properties for Webswing's app JVM.
+#
+# Why this is needed: OpenJDK 9+ stopped shipping lib/fontconfig.bfc and instead
+# queries libfontconfig at runtime via FcFontConfiguration. Webswing's
+# WebFontConfiguration still extends the legacy sun.awt.FontConfiguration, which
+# reads the old properties file. With no such file present the app JVM dies at
+# startup with "Fontconfig head is null, check your fonts or fonts configuration".
+#
+# The JVM honours -Dsun.awt.fontconfig=<path>, so we generate a file rather than
+# writing into the JDK.
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+OUT="${1:-$ROOT/spike-webswing/fontconfig.properties}"
+mkdir -p "$(dirname "$OUT")"
+
+command -v fc-match >/dev/null || { echo "ERROR: fc-match not found (install fontconfig)" >&2; exit 1; }
+
+# logical Java font -> a family we ask fontconfig to resolve
+resolve() { fc-match -f '%{file}' "$1" || true; }
+
+declare -A FAMILY=(
+  [serif]="Noto Serif"
+  [sansserif]="Noto Sans"
+  [monospaced]="DejaVu Sans Mono"
+  [dialog]="Noto Sans"
+  [dialoginput]="DejaVu Sans Mono"
+)
+
+{
+  echo "# Generated by scripts/gen-fontconfig.sh - do not edit by hand."
+  echo "version=1"
+  echo
+  echo "sequence.allfonts=latin-1"
+  echo
+} > "$OUT"
+
+# Component font mappings: <logical>.<style>.latin-1 = <XLFD>
+for logical in serif sansserif monospaced dialog dialoginput; do
+  fam="${FAMILY[$logical]}"
+  famlc="$(echo "$fam" | tr '[:upper:]' '[:lower:]')"
+  for style in plain bold italic bolditalic; do
+    case "$style" in
+      plain)      weight=regular; slant=r ;;
+      bold)       weight=bold;    slant=r ;;
+      italic)     weight=regular; slant=i ;;
+      bolditalic) weight=bold;    slant=i ;;
+    esac
+    echo "${logical}.${style}.latin-1=-*-${famlc}-${weight}-${slant}-normal--*-%d-*-*-p-*-iso8859-1" >> "$OUT"
+  done
+done
+echo >> "$OUT"
+
+# Font file names, keyed by the same XLFD with spaces replaced by underscores.
+declare -A SEEN=()
+for logical in serif sansserif monospaced dialog dialoginput; do
+  fam="${FAMILY[$logical]}"
+  famlc="$(echo "$fam" | tr '[:upper:]' '[:lower:]')"
+  famkey="$(echo "$famlc" | tr ' ' '_')"
+  for style in plain bold italic bolditalic; do
+    case "$style" in
+      plain)      weight=regular; slant=r; spec="$fam:regular" ;;
+      bold)       weight=bold;    slant=r; spec="$fam:bold" ;;
+      italic)     weight=regular; slant=i; spec="$fam:italic" ;;
+      bolditalic) weight=bold;    slant=i; spec="$fam:bold:italic" ;;
+    esac
+    key="filename.-*-${famkey}-${weight}-${slant}-normal--*-%d-*-*-p-*-iso8859-1"
+    [ -n "${SEEN[$key]:-}" ] && continue
+    path="$(resolve "$spec")"
+    if [ -z "$path" ] || [ ! -f "$path" ]; then
+      echo "WARN: no font for '$spec', skipping" >&2
+      continue
+    fi
+    echo "${key}=${path}" >> "$OUT"
+    SEEN[$key]=1
+  done
+done
+
+echo "wrote $OUT ($(grep -c . "$OUT") lines)"
diff --git a/spike-webswing/fontconfig.properties b/spike-webswing/fontconfig.properties
new file mode 100644
index 0000000..d8e5468
--- /dev/null
+++ b/spike-webswing/fontconfig.properties
@@ -0,0 +1,38 @@
+# Generated by scripts/gen-fontconfig.sh - do not edit by hand.
+version=1
+
+sequence.allfonts=latin-1
+
+serif.plain.latin-1=-*-noto serif-regular-r-normal--*-%d-*-*-p-*-iso8859-1
+serif.bold.latin-1=-*-noto serif-bold-r-normal--*-%d-*-*-p-*-iso8859-1
+serif.italic.latin-1=-*-noto serif-regular-i-normal--*-%d-*-*-p-*-iso8859-1
+serif.bolditalic.latin-1=-*-noto serif-bold-i-normal--*-%d-*-*-p-*-iso8859-1
+sansserif.plain.latin-1=-*-noto sans-regular-r-normal--*-%d-*-*-p-*-iso8859-1
+sansserif.bold.latin-1=-*-noto sans-bold-r-normal--*-%d-*-*-p-*-iso8859-1
+sansserif.italic.latin-1=-*-noto sans-regular-i-normal--*-%d-*-*-p-*-iso8859-1
+sansserif.bolditalic.latin-1=-*-noto sans-bold-i-normal--*-%d-*-*-p-*-iso8859-1
+monospaced.plain.latin-1=-*-dejavu sans mono-regular-r-normal--*-%d-*-*-p-*-iso8859-1
+monospaced.bold.latin-1=-*-dejavu sans mono-bold-r-normal--*-%d-*-*-p-*-iso8859-1
+monospaced.italic.latin-1=-*-dejavu sans mono-regular-i-normal--*-%d-*-*-p-*-iso8859-1
+monospaced.bolditalic.latin-1=-*-dejavu sans mono-bold-i-normal--*-%d-*-*-p-*-iso8859-1
+dialog.plain.latin-1=-*-noto sans-regular-r-normal--*-%d-*-*-p-*-iso8859-1
+dialog.bold.latin-1=-*-noto sans-bold-r-normal--*-%d-*-*-p-*-iso8859-1
+dialog.italic.latin-1=-*-noto sans-regular-i-normal--*-%d-*-*-p-*-iso8859-1
+dialog.bolditalic.latin-1=-*-noto sans-bold-i-normal--*-%d-*-*-p-*-iso8859-1
+dialoginput.plain.latin-1=-*-dejavu sans mono-regular-r-normal--*-%d-*-*-p-*-iso8859-1
+dialoginput.bold.latin-1=-*-dejavu sans mono-bold-r-normal--*-%d-*-*-p-*-iso8859-1
+dialoginput.italic.latin-1=-*-dejavu sans mono-regular-i-normal--*-%d-*-*-p-*-iso8859-1
+dialoginput.bolditalic.latin-1=-*-dejavu sans mono-bold-i-normal--*-%d-*-*-p-*-iso8859-1
+
+filename.-*-noto_serif-regular-r-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSerif-Regular.ttf
+filename.-*-noto_serif-bold-r-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSerif-Bold.ttf
+filename.-*-noto_serif-regular-i-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSerif-Italic.ttf
+filename.-*-noto_serif-bold-i-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSerif-BoldItalic.ttf
+filename.-*-noto_sans-regular-r-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSans-Regular.ttf
+filename.-*-noto_sans-bold-r-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSans-Bold.ttf
+filename.-*-noto_sans-regular-i-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSans-Italic.ttf
+filename.-*-noto_sans-bold-i-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/noto/NotoSans-BoldItalic.ttf
+filename.-*-dejavu_sans_mono-regular-r-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf
+filename.-*-dejavu_sans_mono-bold-r-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf
+filename.-*-dejavu_sans_mono-regular-i-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Oblique.ttf
+filename.-*-dejavu_sans_mono-bold-i-normal--*-%d-*-*-p-*-iso8859-1=/usr/share/fonts/truetype/dejavu/DejaVuSansMono-BoldOblique.ttf
diff --git a/spike-webswing/start.sh b/spike-webswing/start.sh
index 54b4286..e2a4cdb 100755
--- a/spike-webswing/start.sh
+++ b/spike-webswing/start.sh
@@ -1,51 +1,109 @@
 #!/usr/bin/env bash
-# Bring up the Webswing spike: MegaMek server + Princess bot + browser-rendered client.
+# Webswing spike: play MegaMek against Princess in a browser.
 #
-#   1. MegaMek Server + Princess (TraineeB) on :8850, TraineeA slot left open
-#   2. Webswing on :8080 serving the real MegaMek Swing client at /megamek,
-#      launched with -client -player_name TraineeA so it claims that slot
+#   JVM 1  MegaMek Server + Princess bot on :8850, one faction left open
+#   JVM 2  Webswing on :8080, serving the real MegaMek Swing client at /megamek
+#   JVM 3  the MegaMek Swing client itself, spawned on demand by Webswing
 #
-# Then open http://localhost:8080/megamek/
+# Runs in the foreground. Exits when the game reaches VICTORY. Ctrl-C tears
+# everything down, including the Webswing server and any spawned client.
+#
+#   ./spike-webswing/start.sh [scenario]
 set -euo pipefail
+
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 JAVA="$ROOT/jdk-21.0.12+8/bin/java"
 MM="$ROOT/MegaMek-0.51.00"
 WS="$ROOT/webswing-dist"
 SCENARIO="${1:-data/scenarios/TrainingScenarios/1-FirstRun.mms}"
+PORT_WS=8080
+PORT_MM=8850
+
+[ -x "$JAVA" ] || { echo "ERROR: JDK missing; run scripts/fetch-deps.sh" >&2; exit 1; }
+[ -d "$WS" ]   || { echo "ERROR: $WS missing; see README for Webswing download" >&2; exit 1; }
 
 mkdir -p "$ROOT/results" "$WS/logs"
 
-echo "starting MegaMek host (server + Princess)..."
-( cd "$MM" && nohup "$JAVA" -Xmx1g \
-    -Dlog4j2.configurationFile="$ROOT/harness/log4j2-quiet.xml" \
-    --add-opens java.base/java.util=ALL-UNNAMED \
-    --add-opens java.base/java.util.concurrent=ALL-UNNAMED \
-    -cp "$ROOT/harness/out:$ROOT/MegaMek-patched.jar:$(ls "$MM"/lib/*.jar | tr '\n' ':')" \
-    spike.HostForHuman "$SCENARIO" 8850 > "$ROOT/results/host.log" 2>&1 & )
-
-echo "starting Webswing..."
-( cd "$WS" && env -u DISPLAY -u XAUTHORITY nohup "$JAVA" -server -Xmx2G -Xms256m \
-    --add-modules=java.desktop \
-    --add-exports=java.desktop/sun.awt=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.awt.dnd=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.awt.datatransfer=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.awt.image=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.java2d=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.java2d.pipe=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.java2d.loops=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.font=ALL-UNNAMED \
-    --add-exports=java.desktop/sun.print=ALL-UNNAMED \
-    --add-exports=java.desktop/java.awt.peer=ALL-UNNAMED \
-    --add-exports=java.desktop/java.awt.dnd=ALL-UNNAMED \
-    --add-exports=java.base/sun.nio.cs=ALL-UNNAMED \
-    --add-opens=java.desktop/sun.awt.image=ALL-UNNAMED \
-    -Dwebswing.websocketMessageSizeLimit=1024000 \
-    -jar webswing-server-26.4.5.war \
-    -h 0.0.0.0 -j jetty.properties -c webswing.config -pf webswing.properties \
-    > logs/ws.log 2>&1 & )
-
-echo
-echo "  open  http://localhost:8080/megamek/"
-echo "  host log:     $ROOT/results/host.log"
-echo "  webswing log: $WS/logs/ws.log"
-echo "  stop:  pkill -f HostForHuman; pkill -f webswing-server"
+# Modern JDKs no longer ship lib/fontconfig.bfc, but Webswing's toolkit still
+# expects the legacy file. Without it the app JVM dies with "Fontconfig head is
+# null". Generate it if absent.
+if [ ! -f "$ROOT/spike-webswing/fontconfig.properties" ]; then
+  echo "generating fontconfig.properties ..."
+  "$ROOT/scripts/gen-fontconfig.sh" >/dev/null
+fi
+
+# Materialise the Webswing config with absolute paths for this checkout.
+sed "s|@ROOT@|$ROOT|g" "$ROOT/spike-webswing/webswing.config.template" > "$WS/webswing.config"
+
+WS_PID=""
+CLEANED=0
+cleanup() {
+  [ "$CLEANED" = "1" ] && return 0
+  CLEANED=1
+  echo
+  echo "shutting down ..."
+  # Any MegaMek client Webswing spawned is a child of the Webswing JVM, so
+  # killing the whole process group catches it too (hence setsid below).
+  if [ -n "$WS_PID" ] && kill -0 "$WS_PID" 2>/dev/null; then
+    kill -TERM "-$WS_PID" 2>/dev/null || kill -TERM "$WS_PID" 2>/dev/null || true
+    for _ in $(seq 20); do kill -0 "$WS_PID" 2>/dev/null || break; sleep 0.25; done
+    kill -KILL "-$WS_PID" 2>/dev/null || kill -KILL "$WS_PID" 2>/dev/null || true
+  fi
+  pkill -f "spike.HostForHuman" 2>/dev/null || true
+  echo "done."
+}
+trap cleanup INT TERM EXIT
+
+echo "starting Webswing on :$PORT_WS ..."
+cd "$WS"
+env -u DISPLAY -u XAUTHORITY setsid "$JAVA" -server -Xmx2G -Xms256m \
+  --add-modules=java.desktop \
+  --add-exports=java.desktop/sun.awt=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.awt.dnd=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.awt.datatransfer=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.awt.image=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.java2d=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.java2d.pipe=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.java2d.loops=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.font=ALL-UNNAMED \
+  --add-exports=java.desktop/sun.print=ALL-UNNAMED \
+  --add-exports=java.desktop/java.awt.peer=ALL-UNNAMED \
+  --add-exports=java.desktop/java.awt.dnd=ALL-UNNAMED \
+  --add-exports=java.base/sun.nio.cs=ALL-UNNAMED \
+  --add-opens=java.desktop/sun.awt.image=ALL-UNNAMED \
+  -Dwebswing.websocketMessageSizeLimit=1024000 \
+  -jar webswing-server-26.4.5.war \
+  -h 0.0.0.0 -j jetty.properties -c webswing.config -pf webswing.properties \
+  > logs/ws.log 2>&1 &
+WS_PID=$!
+
+for _ in $(seq 60); do
+  ss -ltn 2>/dev/null | grep -q ":$PORT_WS " && break
+  sleep 0.5
+done
+ss -ltn 2>/dev/null | grep -q ":$PORT_WS " \
+  || { echo "ERROR: Webswing did not start; see $WS/logs/ws.log" >&2; exit 1; }
+
+cat <<BANNER
+
+  ============================================================
+    Open:  http://localhost:$PORT_WS/megamek/
+
+    You play TraineeA. Princess plays TraineeB.
+    In the lobby just press "Done" - the bot is already ready.
+
+    Ctrl-C here ends the game and stops everything.
+  ============================================================
+
+BANNER
+
+# Foreground: blocks until VICTORY (HostForHuman exits 0) or Ctrl-C.
+cd "$MM"
+"$JAVA" -Xmx1g \
+  -Dlog4j2.configurationFile="$ROOT/harness/log4j2-quiet.xml" \
+  --add-opens java.base/java.util=ALL-UNNAMED \
+  --add-opens java.base/java.util.concurrent=ALL-UNNAMED \
+  -cp "$ROOT/harness/out:$ROOT/MegaMek-patched.jar:$(ls "$MM"/lib/*.jar | tr '\n' ':')" \
+  spike.HostForHuman "$SCENARIO" "$PORT_MM" 2>&1 \
+  | grep --line-buffered -vE "^(ERROR|WARN|INFO) " \
+  | tee "$ROOT/results/host.log"
diff --git a/spike-webswing/webswing.config b/spike-webswing/webswing.config
deleted file mode 100644
index b008d38..0000000
--- a/spike-webswing/webswing.config
+++ /dev/null
@@ -1,33 +0,0 @@
-{
-  "/" : {
-    "path" : "/",
-    "security" : {
-      "module" : "NONE"
-    }
-  },
-  "/megamek" : {
-    "path" : "/megamek",
-    "name" : "MegaMek",
-    "security" : {
-      "module" : "NONE"
-    },
-    "swingConfig" : {
-      "launcherType" : "Desktop",
-      "launcherConfig" : {
-        "mainClass" : "megamek.MegaMek",
-        "args" : "-client -server localhost -port 8850 -player_name TraineeA"
-      },
-      "homeDir" : "/home/jmm/Code/mm-spike/MegaMek-0.51.00",
-      "jreExecutable" : "/home/jmm/Code/mm-spike/jdk-21.0.12+8/bin/java",
-      "classPathEntries" : [ "MegaMek.jar", "lib/*" ],
-      "vmArgs" : "-Xmx2G -Dsentry.dsn= --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.util.concurrent=ALL-UNNAMED",
-      "directdraw" : true,
-      "isolatedFs" : false,
-      "sessionTimeout" : 3600,
-      "swingSessionTimeout" : 3600,
-      "timeoutIfInactive" : false,
-      "allowLocalClipboard" : true,
-      "debug" : false
-    }
-  }
-}
diff --git a/spike-webswing/webswing.config.template b/spike-webswing/webswing.config.template
new file mode 100644
index 0000000..71d5f62
--- /dev/null
+++ b/spike-webswing/webswing.config.template
@@ -0,0 +1,36 @@
+{
+  "/": {
+    "path": "/",
+    "security": {
+      "module": "NONE"
+    }
+  },
+  "/megamek": {
+    "path": "/megamek",
+    "name": "MegaMek",
+    "security": {
+      "module": "NONE"
+    },
+    "swingConfig": {
+      "launcherType": "Desktop",
+      "launcherConfig": {
+        "mainClass": "megamek.MegaMek",
+        "args": "-client -server localhost -port 8850 -player_name TraineeA"
+      },
+      "homeDir": "@ROOT@/MegaMek-0.51.00",
+      "jreExecutable": "@ROOT@/jdk-21.0.12+8/bin/java",
+      "classPathEntries": [
+        "MegaMek.jar",
+        "lib/*"
+      ],
+      "vmArgs": "-Xmx2G -Dsentry.dsn= -Dsun.awt.fontconfig=@ROOT@/spike-webswing/fontconfig.properties -Dwebswing.trustedFontDirs=/usr/share/fonts --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.util.concurrent=ALL-UNNAMED",
+      "directdraw": true,
+      "isolatedFs": false,
+      "sessionTimeout": 3600,
+      "swingSessionTimeout": 3600,
+      "timeoutIfInactive": false,
+      "allowLocalClipboard": true,
+      "debug": false
+    }
+  }
+}
-- 
2.51.2