Unable to get ItemMeta

[Timeout-Timo]

Is there an existing issue for this?

• I have searched the existing issues

Are you using the latest version of MockBukkit?

• I am using the latest version of MockBukkit.

Minecraft Version

1.19

Describe the bug

After updating my tests from 1.18.2 to 1.19.3 there is an ExceptionInInitializerError in ItemFactoryMock.
Inside my test I cannot get any ItemMeta. This is the exception:

java.lang.ExceptionInInitializerError
	at be.seeseemelk.mockbukkit.inventory.ItemFactoryMock.getItemMetaClass(ItemFactoryMock.java:63)
	at be.seeseemelk.mockbukkit.inventory.ItemFactoryMock.getItemMeta(ItemFactoryMock.java:99)
	at org.bukkit.inventory.ItemStack.getItemMeta(ItemStack.java:549)
	at de.rytrox.spicy.item.ItemStackBuilderTest.shouldNotWork(ItemStackBuilderTest.java:72)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)
	at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
	at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
	at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
	at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
	at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: java.lang.IllegalStateException: paper:doors_settag: DOORS - Expected 10 values, got 11
	at io.papermc.paper.tag.BaseTag.ensureSize(BaseTag.java:170)
	at com.destroystokyo.paper.MaterialTags.<clinit>(MaterialTags.java:106)
	... 74 more

Reproducible Test

    @Test
    public void shouldNotWork() {
        ItemStack item = new ItemStack(Material.STONE);
        ItemMeta meta = item.getItemMeta(); // This line is causing the issue

        meta.setDisplayName("Test");
        item.setItemMeta(meta);

        assertEquals("Test", item.getItemMeta().getDisplayName());
    }

Anything else?

In 1.18.2 it worked fine. I'm using classic Spigot 1.19.3

[Relluem94]

Same Problem here

java.lang.ExceptionInInitializerError
        at be.seeseemelk.mockbukkit.inventory.ItemFactoryMock.getItemMetaClass(ItemFactoryMock.java:62)
        at be.seeseemelk.mockbukkit.inventory.ItemFactoryMock.getItemMeta(ItemFactoryMock.java:98)
        at org.bukkit.inventory.ItemStack.getItemMeta(ItemStack.java:550)
        at de.relluem94.minecraft.server.spigot.essentials.helpers.ItemHelper.<init>(ItemHelper.java:78)
        at de.relluem94.minecraft.server.spigot.essentials.npc.NPC.<init>(NPC.java:32)
        at de.relluem94.minecraft.server.spigot.essentials.npc.NPC.<init>(NPC.java:25)
        at de.relluem94.minecraft.server.spigot.essentials.api.NPCAPI$1.<init>(NPCAPI.java:26)
        at de.relluem94.minecraft.server.spigot.essentials.api.NPCAPI.init(NPCAPI.java:26)
        at de.relluem94.minecraft.server.spigot.essentials.managers.DatabaseManager.enable(DatabaseManager.java:52)
        at de.relluem94.minecraft.server.spigot.essentials.RelluEssentials.onEnable(RelluEssentials.java:126)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
        at org.bukkit.plugin.java.JavaPluginUtils.setEnabled(JavaPluginUtils.java:25)
        at be.seeseemelk.mockbukkit.plugin.PluginManagerMock.enablePlugin(PluginManagerMock.java:597)
        at be.seeseemelk.mockbukkit.MockBukkit.load(MockBukkit.java:183)
        at be.seeseemelk.mockbukkit.MockBukkit.load(MockBukkit.java:168)
        at de.relluem94.minecraft.server.spigot.essentials.RelluEssentialsTest.setUp(RelluEssentialsTest.java:59)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
        at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
        at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.lang.IllegalStateException: paper:doors_settag: DOORS - Expected 11 values, got 12
        at io.papermc.paper.tag.BaseTag.ensureSize(BaseTag.java:171)
        at com.destroystokyo.paper.MaterialTags.<clinit>(MaterialTags.java:106)
        ... 38 more

[md5sha256]

I briefly looked into the commit history of the patch which adds this API on paper. Basically, the tags in MaterialTags are based on the Material enum. So the most likely reason I can think of as to why there is a value mismatch is if the Material enum present at runtime is newer/older than the version MaterialTags is expecting.

The last time the DOORS expected 11 values was on this commit on Mar 15. The commit was part of the effort to update the paper API to 1.19.4. As of writing this comment, DOORS expects 12 values.

As to why this is happening I'm not sure. My best guess is that there is some sort of classpath conflict between your plugin and MockBukkit thus your test environment is using API for say 1.19.3 but MockBukkit is using 1.19.4 (or the other way around).

I'll see if I can get a repro case for my hypothesis but that's my 2 cents for now.

TL;DR Possible classpath conflict causing classes from two different API versions to be present at the test runtime

[Insprill]

Is this still an issue with the 1.20 versions of MockBukkit 3? I wasn't able to reproduce it using the provided test.

[Relluem94]

hi @Insprill i will test it with the next release of my plugin

[Insprill]

@Relluem94 Have you gotten around to testing this?

[Relluem94]

Hi @Insprill i updated to 3.19.1 of MockBukkit-v1.20
now im getting

java.lang.RuntimeException: Failed to instantiate plugin
        at be.seeseemelk.mockbukkit.plugin.PluginManagerMock.loadPlugin(PluginManagerMock.java:421)
        at be.seeseemelk.mockbukkit.plugin.PluginManagerMock.loadPlugin(PluginManagerMock.java:453)
        at be.seeseemelk.mockbukkit.MockBukkit.load(MockBukkit.java:179)
        at be.seeseemelk.mockbukkit.MockBukkit.load(MockBukkit.java:165)
        at de.relluem94.minecraft.server.spigot.essentials.RelluEssentialsTest.setUp(RelluEssentialsTest.java:54)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
        at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
        at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
        at be.seeseemelk.mockbukkit.plugin.PluginManagerMock.loadPlugin(PluginManagerMock.java:415)
        ... 26 more
Caused by: java.lang.IllegalStateException: JavaPlugin requires org.bukkit.plugin.java.PluginClassLoader
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:53)
        at de.relluem94.minecraft.server.spigot.essentials.RelluEssentials.<init>(RelluEssentials.java:188)
        at RelluEssentialsProxy.<init>(Unknown Source)
        ... 32 more

so i cant test, i try to figure a way out.

is it related with this #755 ?