From c4372f568bac5150931a17bb1c78b32f9a9bdd31 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Fri, 21 Jun 2019 14:42:48 -0700 Subject: [PATCH] Log other thread in DataPaletteBlock lock failure diff --git a/src/main/java/com/destroystokyo/paper/util/ReentrantLockWithGetOwner.java b/src/main/java/com/destroystokyo/paper/util/ReentrantLockWithGetOwner.java new file mode 100644 index 0000000000..a3b174618d --- /dev/null +++ b/src/main/java/com/destroystokyo/paper/util/ReentrantLockWithGetOwner.java @@ -0,0 +1,11 @@ +package com.destroystokyo.paper.util; + +import java.util.concurrent.locks.ReentrantLock; + +public class ReentrantLockWithGetOwner extends ReentrantLock { + + @Override + public Thread getOwner() { + return super.getOwner(); + } +} diff --git a/src/main/java/net/minecraft/server/DataPaletteBlock.java b/src/main/java/net/minecraft/server/DataPaletteBlock.java index 28a6be7ab0..e05b9d606a 100644 --- a/src/main/java/net/minecraft/server/DataPaletteBlock.java +++ b/src/main/java/net/minecraft/server/DataPaletteBlock.java @@ -19,14 +19,17 @@ public class DataPaletteBlock implements DataPaletteExpandable { protected DataBits a; protected DataBits getDataBits() { return this.a; } // Paper - OBFHELPER private DataPalette h; private DataPalette getDataPalette() { return this.h; } // Paper - OBFHELPER private int i; private int getBitsPerObject() { return this.i; } // Paper - OBFHELPER - private final ReentrantLock j = new ReentrantLock(); + private final com.destroystokyo.paper.util.ReentrantLockWithGetOwner j = new com.destroystokyo.paper.util.ReentrantLockWithGetOwner(); private com.destroystokyo.paper.util.ReentrantLockWithGetOwner getLock() { return this.j; } // Paper - change type to ReentrantLockWithGetOwner // Paper - OBFHELPER public void a() { - if (this.j.isLocked() && !this.j.isHeldByCurrentThread()) { + // Paper start - log other thread + Thread owningThread; + if (this.j.isLocked() && (owningThread = this.getLock().getOwner()) != null && owningThread != Thread.currentThread()) { + // Paper end String s = (String) Thread.getAllStackTraces().keySet().stream().filter(Objects::nonNull).map((thread) -> { return thread.getName() + ": \n\tat " + (String) Arrays.stream(thread.getStackTrace()).map(Object::toString).collect(Collectors.joining("\n\tat ")); }).collect(Collectors.joining("\n")); - CrashReport crashreport = new CrashReport("Writing into PalettedContainer from multiple threads", new IllegalStateException()); + CrashReport crashreport = new CrashReport("Writing into PalettedContainer from multiple threads (other thread: name: " + owningThread.getName() + ", class: " + owningThread.getClass().toString() + ")", new IllegalStateException()); // Paper - log other thread CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Thread dumps"); crashreportsystemdetails.a("Thread dumps", (Object) s); -- 2.21.0