I have an XML file being parsed using the SAX method. One of the values parsed for is a material, and for testing sake I set it to golden sword. This is the specific chunk of code parsing my information: Code (Text): @Override public void endElement(String uri, String localName, String qName) throws SAXException { System.out.println(data); if (bSharp) { stat.setSharpness((byte) Integer.parseInt(data.toString())); bSharp = false; } else if (bWeight) { stat.setWeight((byte) Integer.parseInt(data.toString())); bWeight = false; }else if (bAero) { stat.setAerodynamics((byte) Integer.parseInt(data.toString())); bAero = false; }else if (bLore) { stat.setLore(data.toString()); bLore = false; }else if (bRarity) { stat.setRarity(ItemRarity.valueOf(data.toString())); bRarity = false; }else if (bMaterial) { //TODO: For some reason it thinks GOLDEN_SWORD is LEGACY_GOLDEN_SWORD, find why it's changing that. stat.setItemMaterial(Material.valueOf(data.toString())); bMaterial = false; } Log: Code (Text): [00:05:33 INFO]: 1 [00:05:33 INFO]: 1 [00:05:33 INFO]: 1 [00:05:33 INFO]: A stick [00:05:33 INFO]: COMMON [00:05:33 INFO]: STICK [00:05:33 INFO]: STICK [00:05:33 INFO]: 5 [00:05:33 INFO]: 10 [00:05:33 INFO]: 3 [00:05:33 INFO]: A pretty nice looking sword. [00:05:33 INFO]: RARE [00:05:33 INFO]: GOLDEN_SWORD [00:05:33 ERROR]: Error occurred while enabling GravityCraftCore v0.02 (Is it up to date?) java.lang.IllegalArgumentException: No enum constant org.bukkit.Material.LEGACY_GOLDEN_SWORD at java.lang.Enum.valueOf(Unknown Source) ~[?:1.8.0_211] at org.bukkit.Material.valueOf(Material.java:1) ~[spigot.jar:git-Spigot-800b93f-8160e29] at org.bukkit.craftbukkit.v1_15_R1.util.CraftLegacy.valueOf(CraftLegacy.java:221) ~[spigot.jar:git-Spigot-800b93f-8160e29] at io.pyronucleic.gravitycore.xml.ItemXMLHandler.endElement(ItemXMLHandler.java:77) ~[?:?] at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) ~[?:1.8.0_211] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source) ~[?:1.8.0_211] at javax.xml.parsers.SAXParser.parse(Unknown Source) ~[?:1.8.0_211] at io.pyronucleic.gravitycore.xml.ItemXMLParser.parseXMLItems(ItemXMLParser.java:21) ~[?:?] at io.pyronucleic.gravitycore.main.Main.onEnable(Main.java:24) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[spigot.jar:git-Spigot-800b93f-8160e29] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:352) [spigot.jar:git-Spigot-800b93f-8160e29] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:417) [spigot.jar:git-Spigot-800b93f-8160e29] at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugin(CraftServer.java:462) [spigot.jar:git-Spigot-800b93f-8160e29] at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugins(CraftServer.java:376) [spigot.jar:git-Spigot-800b93f-8160e29] at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:457) [spigot.jar:git-Spigot-800b93f-8160e29] at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:267) [spigot.jar:git-Spigot-800b93f-8160e29] at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:784) [spigot.jar:git-Spigot-800b93f-8160e29] at java.lang.Thread.run(Unknown Source) [?:1.8.0_211] It also repeats that specific task twice, which I'll need to figure out. But for now there is a potential issue with parsing that must be solved. I shows the previous parsed object to show that for materials without legacy duplicates do not have this issue. SOLVED: Some looking around found out that I'm supposed to include the API version in plugin.yml. Hadnt coded in spigot for some time and didn't check whats new
