java.lang.ClassCastException: java.util.HashMap cannot be cast to java.util.Collection

GitHub | OneLargeFarva | 5 months ago
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  1. 0

    GitHub comment 231#246916272

    GitHub | 5 months ago | OneLargeFarva
    java.lang.ClassCastException: java.util.HashMap cannot be cast to java.util.Collection
  2. 0

    GitHub comment 205#225452750

    GitHub | 8 months ago | rockobonaparte
    java.lang.ClassCastException: java.util.HashMap cannot be cast to java.util.Collection
  3. 0

    GSON ClassCastException in 4.0.4?

    Google Groups | 6 years ago | BenV
    java.lang.RuntimeException: An error occured while executing doInBackground()
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    java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long

    Google Groups | 1 year ago | Bharath PBN
    java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long

    Root Cause Analysis

    1. java.lang.ClassCastException

      java.util.HashMap cannot be cast to java.util.Collection

      at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write()
    2. Gson
      Gson.toJson
      1. com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:60)[CollectionTypeAdapterFactory$Adapter.class:?]
      2. com.google.gson.Gson.toJson(Gson.java:593)[Gson.class:?]
      3. com.google.gson.Gson.toJson(Gson.java:572)[Gson.class:?]
      3 frames
    3. hardcorequesting.io
      SaveHandler.save
      1. hardcorequesting.io.SaveHandler.save(SaveHandler.java:294)[SaveHandler.class:?]
      1 frame
    4. hardcorequesting.commands
      CommandHandler.func_184881_a
      1. hardcorequesting.commands.CommandSave.save(CommandSave.java:101)[CommandSave.class:?]
      2. hardcorequesting.commands.CommandSave.handleCommand(CommandSave.java:33)[CommandSave.class:?]
      3. hardcorequesting.commands.CommandHandler.func_184881_a(CommandHandler.java:80)[CommandHandler.class:?]
      3 frames
    5. net.minecraft.command
      CommandHandler.func_71556_a
      1. net.minecraft.command.CommandHandler.func_175786_a(CommandHandler.java:104)[k.class:?]
      2. net.minecraft.command.CommandHandler.func_71556_a(CommandHandler.java:83)[k.class:?]
      2 frames
    6. MC Server
      MinecraftServer.run
      1. net.minecraft.server.dedicated.DedicatedServer.func_71333_ah(DedicatedServer.java:423)[ld.class:?]
      2. net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:388)[ld.class:?]
      3. net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)[MinecraftServer.class:?]
      4. net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)[MinecraftServer.class:?]
      4 frames
    7. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)[?:1.8.0_91]
      1 frame