NumberFormatException while calling loadMergeableRanks

[vamsikantamneni]

Once in a while, after the server start, I see the following Exception

java.lang.NumberFormatException: For input string: "84A= 1520"
at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67)
at java.base/java.lang.Integer.parseInt(Integer.java:662)
at java.base/java.lang.Integer.parseInt(Integer.java:778)
at com.knuddels.jtokkit.EncodingFactory.loadMergeableRanks(EncodingFactory.java:188)
at com.knuddels.jtokkit.EncodingFactory.cl100kBase(EncodingFactory.java:110)
at com.knuddels.jtokkit.AbstractEncodingRegistry.lambda$addEncoding$5(AbstractEncodingRegistry.java:94)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1708)
at com.knuddels.jtokkit.AbstractEncodingRegistry.addEncoding(AbstractEncodingRegistry.java:94)
at com.knuddels.jtokkit.LazyEncodingRegistry.getEncodingForModel(LazyEncodingRegistry.java:31)
at com.knuddels.jtokkit.AbstractEncodingRegistry.getEncodingForModel(AbstractEncodingRegistry.java:32)
at dev.langchain4j.model.openai.OpenAiTokenizer.(OpenAiTokenizer.java:89)
at dev.langchain4j.model.openai.OpenAiTokenizer.(OpenAiTokenizer.java:52)
at dev.langchain4j.internal.Utils.getOrDefault(Utils.java:74)
at dev.langchain4j.model.openai.OpenAiChatModel.(OpenAiChatModel.java:134)
at dev.langchain4j.model.openai.OpenAiChatModel$OpenAiChatModelBuilder.build(OpenAiChatModel.java:437)

I have to restart the server for this to work again.

Env details
Server : Weblogic 14C
OS: Linux