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Code Issues Projects Releases Wiki Activity
aa52bf9e33
Paper/patches/server/0712-Deobfuscate-stacktraces-in-log-messages-crash-report.patch
Shane Freeder aa52bf9e33
Remove "Implement-Chunk-Priority-Urgency-System-for-Chunks" (Fixes #5980) 
Mojang made some changes to priorities in 1.17 and it seems that these changes
conflict with the changes made in this patch, which in some cases appears to
cause excessive rescheduling of tasks.

This, however, is not confirmed as such but seems to be the behavior that we're
seeing to cause this issue, if mojang has adopted the changes we suggested,
then a good chunk of this patch may be unneeded, but, this needs a much better
look than I'm currently able to do
2021-08-14 14:55:55 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Sun, 20 Jun 2021 18:19:09 -0700
Subject: [PATCH] Deobfuscate stacktraces in log messages, crash reports, and
etc.
diff --git a/build.gradle.kts b/build.gradle.kts
index c95e5f2fee54be09b16c26daffdfcfda877ec203..0311fb1e70eb52da19685f7d9d815daf8f3a83ab 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,8 +1,12 @@
import com.github.jengelman.gradle.plugins.shadow.transformers.Log4j2PluginsCacheFileTransformer
import com.github.jengelman.gradle.plugins.shadow.transformers.Transformer
+import io.papermc.paperweight.tasks.BaseTask
import io.papermc.paperweight.util.Git
+import io.papermc.paperweight.util.defaultOutput
+import io.papermc.paperweight.util.openZip
import io.papermc.paperweight.util.path
import shadow.org.apache.logging.log4j.core.config.plugins.processor.PluginProcessor.PLUGIN_CACHE_FILE
+import java.nio.file.Files
import java.util.Locale
plugins {
@@ -13,6 +17,14 @@ plugins {
repositories {
maven("https://libraries.minecraft.net/")
+ // Paper start
+ maven("https://maven.quiltmc.org/repository/release/") {
+ mavenContent {
+ releasesOnly()
+ includeModule("org.quiltmc", "tiny-mappings-parser")
+ }
+ }
+ // Paper end
}
dependencies {
@@ -49,6 +61,8 @@ dependencies {
implementation("co.aikar:cleaner:1.0-SNAPSHOT") // Paper
implementation("io.netty:netty-all:4.1.65.Final") // Paper
+ implementation("org.quiltmc:tiny-mappings-parser:0.3.0") // Paper - needed to read mappings for stacktrace deobfuscation
+
testImplementation("io.github.classgraph:classgraph:4.8.47") // Paper - mob goal test
testImplementation("junit:junit:4.13.1")
testImplementation("org.hamcrest:hamcrest-library:1.3")
@@ -114,6 +128,44 @@ tasks.shadowJar {
transform(ModifiedLog4j2PluginsCacheFileTransformer::class.java)
}
+// Paper start - include reobf mappings in jar for stacktrace deobfuscation
+abstract class IncludeMappings : BaseTask() {
+ @get:InputFile
+ abstract val inputJar: RegularFileProperty
+
+ @get:InputFile
+ abstract val mappings: RegularFileProperty
+
+ @get:OutputFile
+ abstract val outputJar: RegularFileProperty
+
+ override fun init() {
+ outputJar.convention(defaultOutput())
+ }
+
+ @TaskAction
+ private fun addMappings() {
+ outputJar.get().asFile.parentFile.mkdirs()
+ inputJar.get().asFile.copyTo(outputJar.get().asFile, overwrite = true)
+ outputJar.get().path.openZip().use { fs ->
+ val dir = fs.getPath("META-INF/mappings/")
+ Files.createDirectories(dir)
+ val target = dir.resolve("reobf.tiny")
+ Files.copy(mappings.path, target)
+ }
+ }
+}
+
+val includeMappings = tasks.register<IncludeMappings>("includeMappings") {
+ inputJar.set(tasks.fixJarForReobf.flatMap { it.outputJar })
+ mappings.set(tasks.reobfJar.flatMap { it.mappingsFile })
+}
+
+tasks.reobfJar {
+ inputJar.set(includeMappings.flatMap { it.outputJar })
+}
+// Paper end - include reobf mappings in jar for stacktrace deobfuscation
+
tasks.test {
exclude("org/bukkit/craftbukkit/inventory/ItemStack*Test.class")
}
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 3fedd75bea7197092823745deb7af8d4542efee5..2e0191e5cfe8e29fb0a6c4fc6a2a570d4b8ae449 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -505,6 +505,11 @@ public class PaperConfig {
enableBrigadierConsoleCompletions = getBoolean("settings.console.enable-brigadier-completions", enableBrigadierConsoleCompletions);
}
+ public static boolean deobfuscateStacktraces = true;
+ private static void loggerSettings() {
+ deobfuscateStacktraces = getBoolean("settings.loggers.deobfuscate-stacktraces", deobfuscateStacktraces);
+ }
+
public static int itemValidationDisplayNameLength = 8192;
public static int itemValidationLocNameLength = 8192;
public static int itemValidationLoreLineLength = 8192;
diff --git a/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java b/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
index 0bb4aaa546939b67a5d22865190f30478a9337c1..d3e619655382e50e9ac9323ed942502d85c9599c 100644
--- a/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
+++ b/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
@@ -91,7 +91,7 @@ public class SyncLoadFinder {
final JsonArray traces = new JsonArray();
- for (StackTraceElement element : pair.getFirst().stacktrace) {
+ for (StackTraceElement element : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(pair.getFirst().stacktrace)) {
traces.add(String.valueOf(element));
}
diff --git a/src/main/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java b/src/main/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java
new file mode 100644
index 0000000000000000000000000000000000000000..d019802a36dbaca4bf299a55d28381e43d6b976f
--- /dev/null
+++ b/src/main/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java
@@ -0,0 +1,31 @@
+package io.papermc.paper.logging;
+
+import io.papermc.paper.util.StacktraceDeobfuscator;
+import org.apache.logging.log4j.core.Core;
+import org.apache.logging.log4j.core.LogEvent;
+import org.apache.logging.log4j.core.appender.rewrite.RewritePolicy;
+import org.apache.logging.log4j.core.config.plugins.Plugin;
+import org.apache.logging.log4j.core.config.plugins.PluginFactory;
+import org.jetbrains.annotations.NotNull;
+
+@Plugin(
+ name = "StacktraceDeobfuscatingRewritePolicy",
+ category = Core.CATEGORY_NAME,
+ elementType = "rewritePolicy",
+ printObject = true
+)
+public final class StacktraceDeobfuscatingRewritePolicy implements RewritePolicy {
+ @Override
+ public @NotNull LogEvent rewrite(final @NotNull LogEvent rewrite) {
+ final Throwable thrown = rewrite.getThrown();
+ if (thrown != null) {
+ StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(thrown);
+ }
+ return rewrite;
+ }
+
+ @PluginFactory
+ public static @NotNull StacktraceDeobfuscatingRewritePolicy createPolicy() {
+ return new StacktraceDeobfuscatingRewritePolicy();
+ }
+}
diff --git a/src/main/java/io/papermc/paper/util/ObfHelper.java b/src/main/java/io/papermc/paper/util/ObfHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..e9082fa4e04c88fe53429af77b1c23a03aeafc2d
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/ObfHelper.java
@@ -0,0 +1,141 @@
+package io.papermc.paper.util;
+
+import com.google.common.base.Charsets;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.mojang.datafixers.util.Pair;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Map;
+import java.util.Set;
+import net.fabricmc.mapping.tree.ClassDef;
+import net.fabricmc.mapping.tree.MethodDef;
+import net.fabricmc.mapping.tree.TinyMappingFactory;
+import net.fabricmc.mapping.tree.TinyTree;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+@DefaultQualifier(NonNull.class)
+public enum ObfHelper {
+ INSTANCE;
+
+ public static final String MOJANG_PLUS_YARN_NAMESPACE = "mojang+yarn";
+ public static final String SPIGOT_NAMESPACE = "spigot";
+
+ private final @Nullable Map<String, ClassMapping> mappingsByObfName;
+ private final @Nullable Map<String, ClassMapping> mappingsByMojangName;
+
+ ObfHelper() {
+ final @Nullable Set<ClassMapping> maps = loadMappingsIfPresent();
+ if (maps != null) {
+ this.mappingsByObfName = maps.stream().collect(ImmutableMap.toImmutableMap(ClassMapping::obfName, map -> map));
+ this.mappingsByMojangName = maps.stream().collect(ImmutableMap.toImmutableMap(ClassMapping::mojangName, map -> map));
+ } else {
+ this.mappingsByObfName = null;
+ this.mappingsByMojangName = null;
+ }
+ }
+
+ public @Nullable Map<String, ClassMapping> mappingsByObfName() {
+ return this.mappingsByObfName;
+ }
+
+ public @Nullable Map<String, ClassMapping> mappingsByMojangName() {
+ return this.mappingsByMojangName;
+ }
+
+ /**
+ * Attempts to get the obf name for a given class by its Mojang name. Will
+ * return the input string if mappings are not present.
+ *
+ * @param fullyQualifiedMojangName fully qualified class name (dotted)
+ * @return mapped or original fully qualified (dotted) class name
+ */
+ public String reobfClassName(final String fullyQualifiedMojangName) {
+ if (this.mappingsByMojangName == null) {
+ return fullyQualifiedMojangName;
+ }
+
+ final ClassMapping map = this.mappingsByMojangName.get(fullyQualifiedMojangName);
+ if (map == null) {
+ return fullyQualifiedMojangName;
+ }
+
+ return map.obfName();
+ }
+
+ /**
+ * Attempts to get the Mojang name for a given class by its obf name. Will
+ * return the input string if mappings are not present.
+ *
+ * @param fullyQualifiedObfName fully qualified class name (dotted)
+ * @return mapped or original fully qualified (dotted) class name
+ */
+ public String deobfClassName(final String fullyQualifiedObfName) {
+ if (this.mappingsByObfName == null) {
+ return fullyQualifiedObfName;
+ }
+
+ final ClassMapping map = this.mappingsByObfName.get(fullyQualifiedObfName);
+ if (map == null) {
+ return fullyQualifiedObfName;
+ }
+
+ return map.mojangName();
+ }
+
+ private static @Nullable Set<ClassMapping> loadMappingsIfPresent() {
+ try (final @Nullable InputStream mappingsInputStream = StacktraceDeobfuscator.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny")) {
+ if (mappingsInputStream == null) {
+ return null;
+ }
+ final TinyTree tree = TinyMappingFactory.loadWithDetection(new BufferedReader(new InputStreamReader(mappingsInputStream, Charsets.UTF_8)));
+ final var builder = ImmutableSet.<ClassMapping>builder();
+
+ for (final ClassDef classDef : tree.getClasses()) {
+ final String obfClassName = classDef.getName(SPIGOT_NAMESPACE).replace('/', '.');
+ final var methodMappings = ImmutableMap.<Pair<String, String>, MethodMapping>builder();
+
+ for (final MethodDef methodDef : classDef.getMethods()) {
+ final MethodMapping method = new MethodMapping(
+ methodDef.getName(SPIGOT_NAMESPACE),
+ methodDef.getName(MOJANG_PLUS_YARN_NAMESPACE),
+ methodDef.getDescriptor(SPIGOT_NAMESPACE)
+ );
+ methodMappings.put(
+ new Pair<>(method.obfName(), method.descriptor()),
+ method
+ );
+ }
+
+ final ClassMapping map = new ClassMapping(
+ obfClassName,
+ classDef.getName(MOJANG_PLUS_YARN_NAMESPACE).replace('/', '.'),
+ methodMappings.build()
+ );
+ builder.add(map);
+ }
+
+ return builder.build();
+ } catch (final IOException ex) {
+ System.err.println("Failed to load mappings for stacktrace deobfuscation.");
+ ex.printStackTrace();
+ return null;
+ }
+ }
+
+ public record ClassMapping(
+ String obfName,
+ String mojangName,
+ Map<Pair<String, String>, MethodMapping> methodMappings
+ ) {}
+
+ public record MethodMapping(
+ String obfName,
+ String mojangName,
+ String descriptor
+ ) {}
+}
diff --git a/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
new file mode 100644
index 0000000000000000000000000000000000000000..f3099d3cfa4ea8ad56b1abdd0e7b77aaa4465244
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
@@ -0,0 +1,156 @@
+package io.papermc.paper.util;
+
+import com.destroystokyo.paper.PaperConfig;
+import com.mojang.datafixers.util.Pair;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntList;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.framework.qual.DefaultQualifier;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.Label;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+@DefaultQualifier(NonNull.class)
+public enum StacktraceDeobfuscator {
+ INSTANCE;
+
+ private final Map<Class<?>, Map<Pair<String, String>, IntList>> lineMapCache = Collections.synchronizedMap(new LinkedHashMap<>(128, 0.75f, true) {
+ @Override
+ protected boolean removeEldestEntry(final Map.Entry<Class<?>, Map<Pair<String, String>, IntList>> eldest) {
+ return this.size() > 127;
+ }
+ });
+
+ public void deobfuscateThrowable(final Throwable throwable) {
+ if (!PaperConfig.deobfuscateStacktraces) {
+ return;
+ }
+
+ throwable.setStackTrace(this.deobfuscateStacktrace(throwable.getStackTrace()));
+ final Throwable cause = throwable.getCause();
+ if (cause != null) {
+ this.deobfuscateThrowable(cause);
+ }
+ for (final Throwable suppressed : throwable.getSuppressed()) {
+ this.deobfuscateThrowable(suppressed);
+ }
+ }
+
+ public StackTraceElement[] deobfuscateStacktrace(final StackTraceElement[] traceElements) {
+ if (!PaperConfig.deobfuscateStacktraces) {
+ return traceElements;
+ }
+
+ final @Nullable Map<String, ObfHelper.ClassMapping> mappings = ObfHelper.INSTANCE.mappingsByObfName();
+ if (mappings == null || traceElements.length == 0) {
+ return traceElements;
+ }
+ final StackTraceElement[] result = new StackTraceElement[traceElements.length];
+ for (int i = 0; i < traceElements.length; i++) {
+ final StackTraceElement element = traceElements[i];
+
+ final String className = element.getClassName();
+ final String methodName = element.getMethodName();
+
+ final ObfHelper.ClassMapping classMapping = mappings.get(className);
+ if (classMapping == null) {
+ result[i] = element;
+ continue;
+ }
+
+ final Class<?> clazz;
+ try {
+ clazz = Class.forName(className);
+ } catch (final ClassNotFoundException ex) {
+ throw new RuntimeException(ex);
+ }
+ final @Nullable Pair<String, String> nameDescriptorPair = this.determineMethodForLine(clazz, element.getLineNumber());
+ final ObfHelper.@Nullable MethodMapping methodMapping = nameDescriptorPair == null
+ ? null
+ : classMapping.methodMappings().get(nameDescriptorPair);
+
+ result[i] = new StackTraceElement(
+ element.getClassLoaderName(),
+ element.getModuleName(),
+ element.getModuleVersion(),
+ classMapping.mojangName(),
+ methodMapping != null ? methodMapping.mojangName() : methodName,
+ sourceFileName(classMapping.mojangName()),
+ element.getLineNumber()
+ );
+ }
+ return result;
+ }
+
+ private @Nullable Pair<String, String> determineMethodForLine(final Class<?> clazz, final int lineNumber) {
+ final Map<Pair<String, String>, IntList> lineMap = this.lineMapCache.computeIfAbsent(clazz, StacktraceDeobfuscator::buildLineMap);
+ for (final var entry : lineMap.entrySet()) {
+ final Pair<String, String> pair = entry.getKey();
+ final IntList lines = entry.getValue();
+ for (int i = 0, linesSize = lines.size(); i < linesSize; i++) {
+ final int num = lines.getInt(i);
+ if (num == lineNumber) {
+ return pair;
+ }
+ }
+ }
+ return null;
+ }
+
+ private static String sourceFileName(final String fullClassName) {
+ final int dot = fullClassName.lastIndexOf('.');
+ final String className = dot == -1
+ ? fullClassName
+ : fullClassName.substring(dot + 1);
+ final String rootClassName = className.split("\\$")[0];
+ return rootClassName + ".java";
+ }
+
+ private static Map<Pair<String, String>, IntList> buildLineMap(final Class<?> key) {
+ final Map<Pair<String, String>, IntList> lineMap = new HashMap<>();
+ final class LineCollectingMethodVisitor extends MethodVisitor {
+ private final IntList lines = new IntArrayList();
+ private final String name;
+ private final String descriptor;
+
+ LineCollectingMethodVisitor(String name, String descriptor) {
+ super(Opcodes.ASM9);
+ this.name = name;
+ this.descriptor = descriptor;
+ }
+
+ @Override
+ public void visitLineNumber(int line, Label start) {
+ super.visitLineNumber(line, start);
+ this.lines.add(line);
+ }
+
+ @Override
+ public void visitEnd() {
+ super.visitEnd();
+ lineMap.put(new Pair<>(this.name, this.descriptor), this.lines);
+ }
+ }
+ final ClassVisitor classVisitor = new ClassVisitor(Opcodes.ASM9) {
+ @Override
+ public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+ return new LineCollectingMethodVisitor(name, descriptor);
+ }
+ };
+ try {
+ final ClassReader reader = new ClassReader(key.getName());
+ reader.accept(classVisitor, 0);
+ } catch (final IOException ex) {
+ throw new RuntimeException(ex);
+ }
+ return lineMap;
+ }
+}
diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
index 2d5494d2813b773e60ddba6790b750a9a08f21f8..7695bf44503f161523ea612ef8a884ae574a2e21 100644
--- a/src/main/java/io/papermc/paper/util/TraceUtil.java
+++ b/src/main/java/io/papermc/paper/util/TraceUtil.java
@@ -6,13 +6,15 @@ public final class TraceUtil {
public static void dumpTraceForThread(Thread thread, String reason) {
Bukkit.getLogger().warning(thread.getName() + ": " + reason);
- StackTraceElement[] trace = thread.getStackTrace();
+ StackTraceElement[] trace = StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(thread.getStackTrace());
for (StackTraceElement traceElement : trace) {
Bukkit.getLogger().warning("\tat " + traceElement);
}
}
public static void dumpTraceForThread(String reason) {
- new Throwable(reason).printStackTrace();
+ final Throwable throwable = new Throwable(reason);
+ StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(throwable);
+ throwable.printStackTrace();
}
}
diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
index 62c3c597732e6fb30ed5367d902ea8763507a6b8..b9a618eba86656289e20d051c3f0023ec93bb733 100644
--- a/src/main/java/net/minecraft/CrashReport.java
+++ b/src/main/java/net/minecraft/CrashReport.java
@@ -30,6 +30,7 @@ public class CrashReport {
private final SystemReport systemReport = new SystemReport();
public CrashReport(String message, Throwable cause) {
+ io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(cause); // Paper
this.title = message;
this.exception = cause;
this.systemReport.setDetail("CraftBukkit Information", new org.bukkit.craftbukkit.CraftCrashReport()); // CraftBukkit
diff --git a/src/main/java/net/minecraft/CrashReportCategory.java b/src/main/java/net/minecraft/CrashReportCategory.java
index 3941e14d1c3e6e688e28904948039c8b2200de5f..a4fda4a3bae9ce600e778b44cd3ef432a8b65667 100644
--- a/src/main/java/net/minecraft/CrashReportCategory.java
+++ b/src/main/java/net/minecraft/CrashReportCategory.java
@@ -104,6 +104,7 @@ public class CrashReportCategory {
} else {
this.stackTrace = new StackTraceElement[stackTraceElements.length - 3 - ignoredCallCount];
System.arraycopy(stackTraceElements, 3 + ignoredCallCount, this.stackTrace, 0, this.stackTrace.length);
+ this.stackTrace = io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(this.stackTrace); // Paper
return this.stackTrace.length;
}
}
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index db0110120f88bc06954fa8c44b2a45f0c8229574..7b6c547e71230fbb3733f99a4597b3f5b51547b8 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -221,6 +221,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
com.destroystokyo.paper.PaperConfig.registerCommands();
com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
io.papermc.paper.brigadier.PaperBrigadierProviderImpl.INSTANCE.getClass(); // init PaperBrigadierProvider
+ io.papermc.paper.util.ObfHelper.INSTANCE.getClass(); // load mappings for stacktrace deobf and etc.
// Paper end
this.setPvpAllowed(dedicatedserverproperties.pvp);
diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
index 4d271cae88c16ed2419f896c728fdff612540500..dcfbe77bdb25d9c58ffb7b75c48bdb580bc0de47 100644
--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
@@ -106,7 +106,7 @@ public class WatchdogThread extends Thread
log.log( Level.SEVERE, "During the run of the server, a plugin set an excessive velocity on an entity" );
log.log( Level.SEVERE, "This may be the cause of the issue, or it may be entirely unrelated" );
log.log( Level.SEVERE, org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getMessage());
- for ( StackTraceElement stack : org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace() )
+ for ( StackTraceElement stack : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace()) ) // Paper
{
log.log( Level.SEVERE, "\t\t" + stack );
}
@@ -194,7 +194,7 @@ public class WatchdogThread extends Thread
}
log.log( Level.SEVERE, "\tStack:" );
//
- for ( StackTraceElement stack : thread.getStackTrace() )
+ for ( StackTraceElement stack : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(thread.getStackTrace()) ) // Paper
{
log.log( Level.SEVERE, "\t\t" + stack );
}
diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
index 7484c52761d4d8da827cd7693cf8e14519c35a9b..2e421eaac80cf251b32e0bb504dd54a73edf4986 100644
--- a/src/main/resources/log4j2.xml
+++ b/src/main/resources/log4j2.xml
@@ -30,10 +30,14 @@
<DefaultRolloverStrategy max="1000"/>
</RollingRandomAccessFile>
<Async name="Async">
+ <AppenderRef ref="rewrite"/>
+ </Async>
+ <Rewrite name="rewrite">
+ <StacktraceDeobfuscatingRewritePolicy />
<AppenderRef ref="File"/>
<AppenderRef ref="TerminalConsole" level="info"/>
<AppenderRef ref="ServerGuiConsole" level="info"/>
- </Async>
+ </Rewrite>
</Appenders>
<Loggers>
<Root level="info">
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