JDK-8176055: Fix heap dumps on Java 8u141+

In Java 8u141 (1.8.0_141-b15) and newer, the
com.sun.management.HotSpotDiagnostic::dumpHeap API has changed and now
requires all heap dumps to end with the .hprof file extension.

Before this change, servers running 8u141 would be unable to perform a
heap dump.

For more information, please see the official release notes of Java 8
Update 141, linked below.
http://www.oracle.com/technetwork/java/javase/8u141-relnotes-3720385.html

Spigot-Server-Patches/Add-configuration-option-to-prevent-player-names-fro.patch

@@ -20,7 +20,7 @@ index 28917f63d..f4b237034 100644
 +    }
  }
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 6dba269e7..3e5421932 100644
+index 3d484fbcf..3c6f46057 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -0,0 +0,0 @@ public final class CraftServer implements Server {

Spigot-Server-Patches/Allow-Reloading-of-Command-Aliases.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] Allow Reloading of Command Aliases
 Reload the aliases stored in commands.yml
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 5a9555135..6dba269e7 100644
+index 37dc16186..3d484fbcf 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -0,0 +0,0 @@ public final class CraftServer implements Server {

Spigot-Server-Patches/Allow-Reloading-of-Custom-Permissions.patch

@@ -6,11 +6,11 @@ Subject: [PATCH] Allow Reloading of Custom Permissions
 https://github.com/PaperMC/Paper/issues/49
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 815a26284..7a2c19159 100644
+index 3007a724b..e8b8e86e8 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -0,0 +0,0 @@ public final class CraftServer implements Server {
-             Bukkit.getLogger().severe("Could not write heap to " + file);
+             return false;
          }
      }
 +

Spigot-Server-Patches/Paper-config-files.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] Paper config files
 
 diff --git a/src/main/java/com/destroystokyo/paper/PaperCommand.java b/src/main/java/com/destroystokyo/paper/PaperCommand.java
 new file mode 100644
-index 000000000..cd67ab2bb
+index 000000000..5cdf4bbf4
 --- /dev/null
 +++ b/src/main/java/com/destroystokyo/paper/PaperCommand.java
 @@ -0,0 +0,0 @@
@@ -62,10 +62,13 @@ index 000000000..cd67ab2bb
 +
 +    private void dumpHeap(CommandSender sender) {
 +        File file = new File(new File(new File("."), "dumps"),
-+                "heap-dump-" + DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss").format(LocalDateTime.now()) + "-server.bin");
++                "heap-dump-" + DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss").format(LocalDateTime.now()) + "-server.hprof");
 +        Command.broadcastCommandMessage(sender, ChatColor.YELLOW + "Writing JVM heap data to " + file);
-+        CraftServer.dumpHeap(file);
++        if (CraftServer.dumpHeap(file)) {
-+        Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Heap dump complete");
++            Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Heap dump complete");
++        } else {
++            Command.broadcastCommandMessage(sender, ChatColor.RED + "Failed to write heap dump, see sever log for details");
++        }
 +    }
 +
 +    private void doReload(CommandSender sender) {
@@ -370,7 +373,7 @@ index f5d387511..fd204ad7a 100644
          this.world = new CraftWorld((WorldServer) this, gen, env);
          this.ticksPerAnimalSpawns = this.getServer().getTicksPerAnimalSpawns(); // CraftBukkit
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index e21fb9bd7..d7af2c00f 100644
+index e21fb9bd7..dd50d5c56 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -0,0 +0,0 @@ public final class CraftServer implements Server {
@@ -404,7 +407,7 @@ index e21fb9bd7..d7af2c00f 100644
 +
 +    // Paper start
 +    @SuppressWarnings({"rawtypes", "unchecked"})
-+    public static void dumpHeap(File file) {
++    public static boolean dumpHeap(File file) {
 +        try {
 +            if (file.getParentFile() != null) {
 +                file.getParentFile().mkdirs();
@@ -415,8 +418,11 @@ index e21fb9bd7..d7af2c00f 100644
 +            Object hotspotMBean = java.lang.management.ManagementFactory.newPlatformMXBeanProxy(server, "com.sun.management:type=HotSpotDiagnostic", clazz);
 +            java.lang.reflect.Method m = clazz.getMethod("dumpHeap", String.class, boolean.class);
 +            m.invoke(hotspotMBean, file.getPath(), true);
++            return true;
 +        } catch (Throwable t) {
 +            Bukkit.getLogger().severe("Could not write heap to " + file);
++            t.printStackTrace();
++            return false;
 +        }
 +    }
 +    // Paper end