net.minecraft.server.CrashReport Maven / Gradle / Ivy

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package net.minecraft.server;

import com.google.common.collect.Lists;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.Callable;

public class CrashReport {

  private static final Logger a = LogManager.getLogger();
  private final String b;
  private final Throwable c;
  private final CrashReportSystemDetails d = new CrashReportSystemDetails(this, "System Details");
  private final List e = Lists.newArrayList();
  private File f;
  private boolean g = true;
  private StackTraceElement[] h = new StackTraceElement[0];

  public CrashReport(String s, Throwable throwable) {
    this.b = s;
    this.c = throwable;
    this.h();
  }

  private static String i() {
    String[] astring = new String[]{"Who set us up the TNT?", "Everything's going to plan. No, really, that was supposed to happen.", "Uh... Did I do that?", "Oops.", "Why did you do that?", "I feel sad now :(", "My bad.", "I'm sorry, Dave.", "I let you down. Sorry :(", "On the bright side, I bought you a teddy bear!", "Daisy, daisy...", "Oh - I know what I did wrong!", "Hey, that tickles! Hehehe!", "I blame Dinnerbone.", "You should try our sister game, Minceraft!", "Don't be sad. I'll do better next time, I promise!", "Don't be sad, have a hug! <3", "I just don't know what went wrong :(", "Shall we play a game?", "Quite honestly, I wouldn't worry myself about that.", "I bet Cylons wouldn't have this problem.", "Sorry :(", "Surprise! Haha. Well, this is awkward.", "Would you like a cupcake?", "Hi. I'm Minecraft, and I'm a crashaholic.", "Ooh. Shiny.", "This doesn't make any sense!", "Why is it breaking :(", "Don't do that.", "Ouch. That hurt :(", "You're mean.", "This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]", "There are four lights!", "But it works on my machine."};

    try {
      return astring[(int) (System.nanoTime() % (long) astring.length)];
    } catch (Throwable throwable) {
      return "Witty comment unavailable :(";
    }
  }

  public static CrashReport a(Throwable throwable, String s) {
    CrashReport crashreport;

    if (throwable instanceof ReportedException) {
      crashreport = ((ReportedException) throwable).a();
    } else {
      crashreport = new CrashReport(s, throwable);
    }

    return crashreport;
  }

  private void h() {
    this.d.a("Minecraft Version", new Callable() {
      public String a() {
        return "1.8.8";
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("Operating System", new Callable() {
      public String a() {
        return System.getProperty("os.name") + " (" + System.getProperty("os.arch") + ") version " + System.getProperty("os.version");
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("Java Version", new Callable() {
      public String a() {
        return System.getProperty("java.version") + ", " + System.getProperty("java.vendor");
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("Java VM Version", new Callable() {
      public String a() {
        return System.getProperty("java.vm.name") + " (" + System.getProperty("java.vm.info") + "), " + System.getProperty("java.vm.vendor");
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("Memory", new Callable() {
      public String a() {
        Runtime runtime = Runtime.getRuntime();
        long i = runtime.maxMemory();
        long j = runtime.totalMemory();
        long k = runtime.freeMemory();
        long l = i / 1024L / 1024L;
        long i1 = j / 1024L / 1024L;
        long j1 = k / 1024L / 1024L;

        return k + " bytes (" + j1 + " MB) / " + j + " bytes (" + i1 + " MB) up to " + i + " bytes (" + l + " MB)";
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("JVM Flags", new Callable() {
      public String a() {
        RuntimeMXBean runtimemxbean = ManagementFactory.getRuntimeMXBean();
        List list = runtimemxbean.getInputArguments();
        int i = 0;
        StringBuilder stringbuilder = new StringBuilder();
        Iterator iterator = list.iterator();

        while (iterator.hasNext()) {
          String s = (String) iterator.next();

          if (s.startsWith("-X")) {
            if (i++ > 0) {
              stringbuilder.append(" ");
            }

            stringbuilder.append(s);
          }
        }

        return String.format("%d total; %s", Integer.valueOf(i), stringbuilder.toString());
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("IntCache", new Callable() {
      public String a() throws Exception {
        return IntCache.b();
      }

      public Object call() throws Exception {
        return this.a();
      }
    });
    this.d.a("CraftBukkit Information", (Callable) (new org.bukkit.craftbukkit.CraftCrashReport())); // CraftBukkit
  }

  public String a() {
    return this.b;
  }

  public Throwable b() {
    return this.c;
  }

  public void a(StringBuilder stringbuilder) {
    if ((this.h == null || this.h.length <= 0) && this.e.size() > 0) {
      this.h = ArrayUtils.subarray(this.e.get(0).a(), 0, 1);
    }

    if (this.h != null && this.h.length > 0) {
      stringbuilder.append("-- Head --\n");
      stringbuilder.append("Stacktrace:\n");
      StackTraceElement[] astacktraceelement = this.h;
      int i = astacktraceelement.length;

      for (int j = 0; j < i; ++j) {
        StackTraceElement stacktraceelement = astacktraceelement[j];

        stringbuilder.append("\t").append("at ").append(stacktraceelement.toString());
        stringbuilder.append("\n");
      }

      stringbuilder.append("\n");
    }

    Iterator iterator = this.e.iterator();

    while (iterator.hasNext()) {
      CrashReportSystemDetails crashreportsystemdetails = (CrashReportSystemDetails) iterator.next();

      crashreportsystemdetails.a(stringbuilder);
      stringbuilder.append("\n\n");
    }

    this.d.a(stringbuilder);
  }

  public String d() {
    StringWriter stringwriter = null;
    PrintWriter printwriter = null;
    Object object = this.c;

    if (((Throwable) object).getMessage() == null) {
      if (object instanceof NullPointerException) {
        object = new NullPointerException(this.b);
      } else if (object instanceof StackOverflowError) {
        object = new StackOverflowError(this.b);
      } else if (object instanceof OutOfMemoryError) {
        object = new OutOfMemoryError(this.b);
      }

      ((Throwable) object).setStackTrace(this.c.getStackTrace());
    }

    String s = object.toString();

    try {
      stringwriter = new StringWriter();
      printwriter = new PrintWriter(stringwriter);
      ((Throwable) object).printStackTrace(printwriter);
      s = stringwriter.toString();
    } finally {
      IOUtils.closeQuietly(stringwriter);
      IOUtils.closeQuietly(printwriter);
    }

    return s;
  }

  public String e() {
    StringBuilder stringbuilder = new StringBuilder();

    stringbuilder.append("---- Minecraft Crash Report ----\n");
    stringbuilder.append("// ");
    stringbuilder.append(i());
    stringbuilder.append("\n\n");
    stringbuilder.append("Time: ");
    stringbuilder.append((new SimpleDateFormat()).format(new Date()));
    stringbuilder.append("\n");
    stringbuilder.append("Description: ");
    stringbuilder.append(this.b);
    stringbuilder.append("\n\n");
    stringbuilder.append(this.d());
    stringbuilder.append("\n\nA detailed walkthrough of the error, its code path and all known details is as follows:\n");

    for (int i = 0; i < 87; ++i) {
      stringbuilder.append("-");
    }

    stringbuilder.append("\n\n");
    this.a(stringbuilder);
    return stringbuilder.toString();
  }

  public boolean a(File file) {
    if (this.f != null) {
      return false;
    } else {
      if (file.getParentFile() != null) {
        file.getParentFile().mkdirs();
      }

      try {
        FileWriter filewriter = new FileWriter(file);

        filewriter.write(this.e());
        filewriter.close();
        this.f = file;
        return true;
      } catch (Throwable throwable) {
        CrashReport.a.error("Could not save crash report to " + file, throwable);
        return false;
      }
    }
  }

  public CrashReportSystemDetails g() {
    return this.d;
  }

  public CrashReportSystemDetails a(String s) {
    return this.a(s, 1);
  }

  public CrashReportSystemDetails a(String s, int i) {
    CrashReportSystemDetails crashreportsystemdetails = new CrashReportSystemDetails(this, s);

    if (this.g) {
      int j = crashreportsystemdetails.a(i);
      StackTraceElement[] astacktraceelement = this.c.getStackTrace();
      StackTraceElement stacktraceelement = null;
      StackTraceElement stacktraceelement1 = null;
      int k = astacktraceelement.length - j;

      if (k < 0) {
        System.out.println("Negative index in crash report handler (" + astacktraceelement.length + "/" + j + ")");
      }

      if (astacktraceelement != null && 0 <= k && k < astacktraceelement.length) {
        stacktraceelement = astacktraceelement[k];
        if (astacktraceelement.length + 1 - j < astacktraceelement.length) {
          stacktraceelement1 = astacktraceelement[astacktraceelement.length + 1 - j];
        }
      }

      this.g = crashreportsystemdetails.a(stacktraceelement, stacktraceelement1);
      if (j > 0 && !this.e.isEmpty()) {
        CrashReportSystemDetails crashreportsystemdetails1 = this.e.get(this.e.size() - 1);

        crashreportsystemdetails1.b(j);
      } else if (astacktraceelement != null && astacktraceelement.length >= j && 0 <= k && k < astacktraceelement.length) {
        this.h = new StackTraceElement[k];
        System.arraycopy(astacktraceelement, 0, this.h, 0, this.h.length);
      } else {
        this.g = false;
      }
    }

    this.e.add(crashreportsystemdetails);
    return crashreportsystemdetails;
  }
}