microsoft / microsoft/azure-tools-for-java

[IntelliJ] Uncaught Exception java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

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Dominant language
Java
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Description

IntelliJ build version: 2025.1.1.1 IC-251.25410.129
OS: Windows 11
JDK: JetBrains s.r.o. 21.0.6
Plugin version: 3.95.0-2025.1
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,0,2554x1394,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

IdeaLoggingEvent[message=null, throwable=java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
	at <REDACTED: user-file-path>$1.apply(Preconditions.java:55)
	at com.microsoft.azure.toolkit.lib.common.model.AbstractAzResource.isMocked(AbstractAzResource.java:373)
	at com.microsoft.azure.toolkit.intellij.connector.code.AbstractResourceConnectionAnnotator.validateConnectionResource(AbstractResourceConnectionAnnotator.java:110)
	at com.microsoft.azure.toolkit.intellij.connector.code.AbstractResourceConnectionAnnotator.annotate(AbstractResourceConnectionAnnotator.java:51)

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Research direction

Start by tracing AbstractAzResource.isMocked at AbstractAzResource.java:373 and its call from AbstractResourceConnectionAnnotator.validateConnectionResource at line 110. Reproduce the exception in IntelliJ 2025.1.1.1 with plugin 3.95.0 and Windows 11 if possible, then verify that the reported StringIndexOutOfBoundsException no longer occurs during connection annotation.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
developer-experience
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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