[IntelliJ][ReportedByUser] Uncaught Exception During querying provider com.microsoft.azure.toolkit.intellij.keyvault.code.spring.EnvVarLineMarkerProvider

IntelliJ build version: 2023.3.2 IU-233.13135.103
OS: Windows 11
JDK: JetBrains s.r.o. 17.0.9
Plugin version: 3.84.0-2023.3
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,0,1573x1359,layout=com.intellij.openapi.wm.impl.IdeRootPane$MyRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

IdeaLoggingEvent[message=During querying provider com.microsoft.azure.toolkit.intellij.keyvault.code.spring.EnvVarLineMarkerProvider@335f478 (class com.microsoft.azure.toolkit.intellij.keyvault.code.spring.EnvVarLineMarkerProvider), throwable=java.lang.IllegalArgumentException: Argument for @NotNull parameter 'icon' of <REDACTED: user-file-path><init> must not be null
	at com.intellij.codeInsight.daemon.MergeableLineMarkerInfo.$$$reportNull$$$0(MergeableLineMarkerInfo.java)
	at com.microsoft.azure.toolkit.intellij.keyvault.code.spring.EnvVarLineMarkerProvider$ResourceLineMarkerInfo.<init>(EnvVarLi

Start with the reported IntelliJ plugin failure in EnvVarLineMarkerProvider and its nested ResourceLineMarkerInfo constructor, using the supplied IntelliJ, Windows, JDK, and plugin versions as reproduction context. Trace why the required icon is null during provider querying; done means the exception no longer occurs in this scenario.