Java Server not starting after 1.15 upgrade

c:\Minecraft_server>java -Xmx1024M -Xms1024M -jar server.jar nogui
[08:51:17] [main/WARN]: Ambiguity between arguments [teleport, destination] and [teleport, targets] with inputs: [Player, 0123, @e, dd12be42-52a9-4a91-a8a1-11c01849e498]
[08:51:17] [main/WARN]: Ambiguity between arguments [teleport, location] and [teleport, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
[08:51:17] [main/WARN]: Ambiguity between arguments [teleport, location] and [teleport, targets] with inputs: [0.1 -0.5 .9, 0 0 0]
[08:51:17] [main/WARN]: Ambiguity between arguments [teleport, targets] and [teleport, destination] with inputs: [Player, 0123, dd12be42-52a9-4a91-a8a1-11c01849e498]
[08:51:17] [main/WARN]: Ambiguity between arguments [teleport, targets, location] and [teleport, targets, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
[08:51:17] [Server thread/INFO]: Starting minecraft server version 1.15
[08:51:17] [Server thread/INFO]: Loading properties
[08:51:17] [Server thread/INFO]: Default game type: SURVIVAL
[08:51:17] [Server thread/INFO]: Generating keypair
[08:51:17] [Server thread/INFO]: Starting Minecraft server on 192.168.0.202:25560
[08:51:17] [Server thread/INFO]: Using default channel type
[08:51:17] [Server thread/INFO]: Preparing level "quadwitch_world"
[08:51:17] [Server thread/INFO]: Reloading ResourceManager: Default
[08:51:25] [Server thread/INFO]: Loaded 6 recipes
[08:51:25] [Server thread/INFO]: Loaded 825 advancements
[08:51:25] [Server thread/INFO]: Preparing start region for dimension minecraft:overworld
[08:51:26] [Server thread/INFO]: Preparing spawn area: 0%
[08:51:26] [Server thread/INFO]: Preparing spawn area: 0%
[08:51:26] [Server thread/INFO]: Preparing spawn area: 0%
[08:51:26] [Server thread/INFO]: Time elapsed: 1169 ms
[08:51:26] [Server thread/INFO]: Done (9.184s)! For help, type "help"
[08:51:27] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: Could not initialize class h
at net.minecraft.server.MinecraftServer.b(SourceFile:849) ~[server.jar:?]
at wd.b(SourceFile:343) ~[server.jar:?]
at net.minecraft.server.MinecraftServer.a(SourceFile:786) ~[server.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:654) [server.jar:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
[08:51:27] [Server thread/INFO]: Stopping server
[08:51:27] [Server thread/INFO]: Saving players
[08:51:27] [Server thread/INFO]: Saving worlds
[08:51:27] [Server thread/INFO]: Saving chunks for level 'quadwitch_world'/minecraft:the_end
[08:51:27] [Server thread/INFO]: ThreadedAnvilChunkStorage (DIM1): All chunks are saved
[08:51:27] [Server thread/INFO]: Saving chunks for level 'quadwitch_world'/minecraft:overworld
[08:51:28] [Server thread/INFO]: ThreadedAnvilChunkStorage (quadwitch_world): All chunks are saved
[08:51:28] [Server thread/INFO]: Saving chunks for level 'quadwitch_world'/minecraft:the_nether
[08:51:28] [Server thread/INFO]: ThreadedAnvilChunkStorage (DIM-1): All chunks are saved
[08:51:28] [Server thread/INFO]: ThreadedAnvilChunkStorage (DIM1): All chunks are saved
[08:51:28] [Server thread/INFO]: ThreadedAnvilChunkStorage (quadwitch_world): All chunks are saved
[08:51:28] [Server thread/INFO]: ThreadedAnvilChunkStorage (DIM-1): All chunks are saved
[08:51:28] [Server thread/ERROR]: java.lang.NoClassDefFoundError: Could not initialize class h