[🐛 Bug]: java.lang.ArrayIndexOutOfBoundsException: Index N out of bounds for length N

[jherncandle]

What happened?

Starting my TestNG automated tests and setting capabilities for the driver I am using and every now and then I get this error in the selenium stack:

java.lang.ArrayIndexOutOfBoundsException: Index 11 out of bounds for length 11
at java.base/java.util.stream.SortedOps$SizedRefSortingSink.accept(SortedOps.java:369)
at java.base/java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet.lambda$entryConsumer$0(Collections.java:1576)
at java.base/java.util.TreeMap$EntrySpliterator.forEachRemaining(TreeMap.java:2962)
at java.base/java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet$UnmodifiableEntrySetSpliterator.forEachRemaining(Collections.java:1601)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
at org.openqa.selenium.SharedCapabilitiesMethods.abbreviate(SharedCapabilitiesMethods.java:117)
at org.openqa.selenium.SharedCapabilitiesMethods.toString(SharedCapabilitiesMethods.java:84)
at org.openqa.selenium.MutableCapabilities.toString(MutableCapabilities.java:138)
at java.base/java.lang.String.valueOf(String.java:2951)
at org.openqa.selenium.SharedCapabilitiesMethods.abbreviate(SharedCapabilitiesMethods.java:120)
at org.openqa.selenium.SharedCapabilitiesMethods.lambda$abbreviate$4(SharedCapabilitiesMethods.java:116)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.stream.SortedOps$SizedRefSortingSink.end(SortedOps.java:357)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
at org.openqa.selenium.SharedCapabilitiesMethods.abbreviate(SharedCapabilitiesMethods.java:117)
at org.openqa.selenium.SharedCapabilitiesMethods.toString(SharedCapabilitiesMethods.java:84)
at org.openqa.selenium.MutableCapabilities.toString(MutableCapabilities.java:138)

How can we reproduce the issue?

Not sure how since I observe the problem occasionally, not all the time, but it stems from a
AbstractDriverOptions.toString() call
         Log.trace("new remote webdriver: " + driverOptions.toString());

where driverOptions is:
        AbstractDriverOptions driverOptions = Browser.getDriverOptions(driverType);
and Browser.getDriverOptions is:
    public static AbstractDriverOptions getDriverOptions(Driver.DriverType type) {
        switch (type) {
            case CHROME:
                return (new Chrome()).getChromeOptions();
            case EDGE:
                return (new Edge()).getEdgeOptions();
            case FIREFOX:
                return (new Firefox()).getFirefoxOptions();
            case IE:
                return (new IE()).getInternetExplorerOptions();
            case SAFARI:
                return (new Safari()).getSafariOptions();
            default:
                throw new IllegalArgumentException("invalid driver type:" + type);
        }
    }

Relevant log output

java.lang.ArrayIndexOutOfBoundsException: Index 11 out of bounds for length 11
	at java.base/java.util.stream.SortedOps$SizedRefSortingSink.accept(SortedOps.java:369)
	at java.base/java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet.lambda$entryConsumer$0(Collections.java:1576)
	at java.base/java.util.TreeMap$EntrySpliterator.forEachRemaining(TreeMap.java:2962)
	at java.base/java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet$UnmodifiableEntrySetSpliterator.forEachRemaining(Collections.java:1601)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
	at org.openqa.selenium.SharedCapabilitiesMethods.abbreviate(SharedCapabilitiesMethods.java:117)
	at org.openqa.selenium.SharedCapabilitiesMethods.toString(SharedCapabilitiesMethods.java:84)
	at org.openqa.selenium.MutableCapabilities.toString(MutableCapabilities.java:138)
	at java.base/java.lang.String.valueOf(String.java:2951)
	at org.openqa.selenium.SharedCapabilitiesMethods.abbreviate(SharedCapabilitiesMethods.java:120)
	at org.openqa.selenium.SharedCapabilitiesMethods.lambda$abbreviate$4(SharedCapabilitiesMethods.java:116)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
	at java.base/java.util.stream.SortedOps$SizedRefSortingSink.end(SortedOps.java:357)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
	at org.openqa.selenium.SharedCapabilitiesMethods.abbreviate(SharedCapabilitiesMethods.java:117)
	at org.openqa.selenium.SharedCapabilitiesMethods.toString(SharedCapabilitiesMethods.java:84)
	at org.openqa.selenium.MutableCapabilities.toString(MutableCapabilities.java:138)

Operating System

We see this on Windows11, MacOs Ventura(13.5)

Selenium version

Java 11 with Selenium 4.9.1

What are the browser(s) and version(s) where you see this issue?

Chrome, Edge, Firefox and Safari

What are the browser driver(s) and version(s) where you see this issue?

geckodriverVersion: 0.35.0, Safari browserVersion: 17.1, chromedriverVersion: 127.0.6533.72, MicrosoftEdge, browserVersion: 127.0.2651.74

Are you using Selenium Grid?

No

[github-actions]

@jherncandle, thank you for creating this issue. We will troubleshoot it as soon as we can.

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[github-actions]

Hi, @jherncandle.
Please follow the issue template, we need more information to reproduce the issue.

Either a complete code snippet and URL/HTML (if more than one file is needed, provide a GitHub repo and instructions to run the code), the specific versions used, or a more detailed description to help us understand the issue.

Note: If you cannot share your code and URL/HTML, any complete code snippet and URL/HTML that reproduces the issue is good enough.

Reply to this issue when all information is provided, thank you.

[jherncandle]

Here is the code that produces the problem:
org.openqa.selenium.MutableCapabilities.toString();

[diemol]

That is not enough code to reproduce the issue. Can you please provide a complete test script that reproduces it? Otherwise this issue will stale.

[shbenzer]

This seems like correct functionality to me, shouldn't the indices for a list of length 11 be: [0,1,2,3,4,5,6,7,8,9,10]?

[jherncandle]

As I mentioned initially, the problem is intermittent, and yes, the exception is correct in that it points out that the abbreviate method is attempting to modify an element in a map beyond its boundary.
I don't think the script(s) per se are relevant as this is the setup even before our script code gets executed, I would have thought that the stack would be sufficient.
Anyway, we can add a try catch block in our code to circumvent the error in the selenium code (or maybe it is in the JDK?) if the issue can't/won't be resolved, just thought I would let you know about it.

[diemol]

In any case we need a way to reproduce the issue, otherwise we cannot triage it.

[diemol]

We are closing this issue as we didn't get a reply from the original poster.

If someone is facing this issue, feel free to comment and provide a concise reproducible test case that includes the page required to execute the scenario (a sample page or a public site).

If you have any questions or need help, join us in the IRC/Slack channel, where the community can also assist you.

[github-actions]

This issue has been automatically locked since there has not been any recent activity since it was closed. Please open a new issue for related bugs.