NPE on messages loading (Plugins GUI reload)

[roccodev]

I'm getting this NPE when trying to reload my plugin.
Could not load Messages from path core/messages/hive.properties java.lang.NullPointerException at java.util.Properties$LineReader.readLine(Properties.java:434) at java.util.Properties.load0(Properties.java:353) at java.util.Properties.load(Properties.java:341) at eu.the5zig.mod.server.RegisteredServerInstance.loadPatterns(RegisteredServerInstance.java:99) at eu.the5zig.mod.server.RegisteredServerInstance.<init>(RegisteredServerInstance.java:41) at eu.the5zig.mod.server.ServerInstanceRegistry.registerServerInstance(ServerInstanceRegistry.java:34) at eu.the5zig.mod.ModAPIImpl.registerServerInstance(ModAPIImpl.java:95) at tk.roccodev.zta.ZTAMain.onLoad(ZTAMain.java:112) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at eu.the5zig.mod.plugin.PluginManagerImpl.loadPlugin(PluginManagerImpl.java:141) at eu.the5zig.mod.gui.GuiPlugins.actionPerformed(GuiPlugins.java:91) at eu.the5zig.mod.gui.Gui.actionPerformed0(Gui.java:144) at eu.the5zig.mod.gui.Gui.mouseClicked0(Gui.java:276) at GuiHandle.func_73864_a(GuiHandle.java:58) at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:554) at GuiHandle.func_146274_d(GuiHandle.java:42) at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:523) at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1674) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1024) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:349) at net.minecraft.client.main.Main.main(SourceFile:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Link to ZTAMain (line 112): https://github.com/RoccoDev/5zig-TIMV-Plugin/blob/79d76b8e13f65889fe783b5d8242e68c60d61316/src/tk/roccodev/zta/ZTAMain.java#L110
(It is Line 110 because my local file is updated)

My core/messages/hive.properties file:
https://github.com/RoccoDev/5zig-TIMV-Plugin/blob/experimental/src/core/messages/hive.properties

[5zig]

Are you sure that the properties file was included in your jar and that it was in the correct subdirectory? Or in other words, did your plugin work when relaunching the game?

[roccodev]

It did

[roccodev]

I'm pretty sure it would have thrown a FileNotFoundException instead

[roccodev]

Feel free to download my plugin and test it
Make sure to get the latest experimental build

[5zig]

I just downloaded the latest experimental build of your plugin and reloading it in the 5zig mod plugin gui worked perfectly fine for me. My guess is that the NullpointerExecption was caused by classLoader.getResourceAsStream("core/messages/hive.properties ") returning null. Not sure though why I cannot reproduce your issue.

[ItsNiklas]

I just wanna add (I'm also developing on the plugin) that I'm getting the exact same NPE when trying to reload (not on server). So I also have the issue of the whole 'reload' process failing. Relaunching the game works perfectly 😕

[5zig]

Does the reloading always fail or only when the file has been changed before?

[ItsNiklas]

Only if the file has been modified since launching, otherwise it reloads fine