[IntelliJ] Uncaught Exception Error retrieving vulnerability data from GitHub Security Advisory API java.io.IOException: EOF reached while reading

IntelliJ build version: 2026.2.1 IU-262.9437.185
OS: Windows 11
JDK: JetBrains s.r.o. 25.0.3
Plugin version: 3.97.7-2026.2
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,8,1920x1032,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

IdeaLoggingEvent[message=Error retrieving vulnerability data from GitHub Security Advisory API, throwable=java.io.IOException: EOF reached while reading
	at <REDACTED: user-file-path>(HttpClientImpl.java:938)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.service.CVECheckService.retrieveVulnerabilityData(CVECheckService.java:312)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.service.CVECheckService.fetchCves(CVECheckService.java:241)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.service.CVECheckService.getCveUpgradeIssues(CVECheckService.java:200)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.service.CVECheckService.batchGetCVEIssues(CVECheckService.java:171)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.service.JavaUpgradeIssuesDetectionService.getCVEIssues(JavaUpgradeIssuesDetectionService.java:385)

Start with CVECheckService.retrieveVulnerabilityData at line 312, then trace callers through fetchCves, getCveUpgradeIssues, and batchGetCVEIssues. Reproduce the GitHub Security Advisory API retrieval failure if possible and inspect how the EOF exception is handled. Done means the reported retrieval failure has a defined, verified outcome rather than an uncaught exception.