Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

java.lang.ClassCastException: okio.ByteString cannot be cast to java.lang.Comparable

See original GitHub issue

When deploying to an Apache Flink 1.6 cluster on AWS EMR 5.18.0, okhttp throws an error with okio. Locally, everything runs smoothly (as they always say…).

Caused by: java.lang.ExceptionInInitializerError
	at okhttp3.HttpUrl$Builder.parse(HttpUrl.java:1313)
	at okhttp3.HttpUrl.get(HttpUrl.java:917)
	at okhttp3.Request$Builder.url(Request.java:165)
	... 9 more
Caused by: java.lang.ClassCastException: okio.ByteString cannot be cast to java.lang.Comparable
	at java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:320)
	at java.util.ComparableTimSort.sort(ComparableTimSort.java:188)
	at java.util.Arrays.sort(Arrays.java:1312)
	at java.util.Arrays.sort(Arrays.java:1506)
	at java.util.ArrayList.sort(ArrayList.java:1462)
	at java.util.Collections.sort(Collections.java:141)
	at kotlin.collections.CollectionsKt__MutableCollectionsJVMKt.sort(MutableCollectionsJVM.kt:27)
	at okio.Options$Companion.of(Options.kt:43)
	at okio.Options.of(Options.kt)
	at okhttp3.internal.Util.<clinit>(Util.java:73)

Dependency setup:

        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>okhttp</artifactId>
            <version>3.13.1</version>
        </dependency>

        <!-- Dependency of okhttp -->
        <dependency>
            <groupId>com.squareup.okio</groupId>
            <artifactId>okio</artifactId>
            <version>2.2.2</version>
        </dependency>

JVM:

openjdk version "1.8.0_191"
OpenJDK Runtime Environment (build 1.8.0_191-b12)
OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)

EMR configured apps:

Hadoop 2.8.4
Flink 1.6.0
Hue 4.2.0

I have seen other posts about conflicts with Apache Spark, but have not seen this error nor mentions of conflicts with Flink. If this is just a simple version conflict, how might I go about fixing it?

Thank you!

Issue Analytics

State:
Created 5 years ago
Comments:6 (2 by maintainers)

Top GitHub Comments

1reaction

austincecommented, Feb 28, 2019

For anyone else who might find their way to this thread, here is a convo with the mailing list about how to solve this issue. And here is the debugging classloading guide.

0reactions

austincecommented, Feb 27, 2019

Ok, thank you for your help!

Top Results From Across the Web

cannot be cast to java.lang.Comparable while sorting ...

Problem statement: I am trying to sort a composite class using comparable and collections.sort but getting exception.

okhttp3 maven

java lang classcastexception okio bytestring cannot be cast to java lang comparable. The TreeSet orders it's elements. To do that it either needs...

Solved Error: cannot be cast to java.lang.Comparable

Here various reasons and ways to solve the exception cannot be cast to java.lang.Comparable. Let us first have a brief look at what...

ByteString (Okio 1.17.4 API) - javadoc.io

Returns a ByteBuffer view of the bytes in this ByteString . java.lang.String, base64(). Returns this byte string encoded as Base64.

Cannot be cast to java.lang.Comparable - Codersdesks.com

Cannot be cast to java.lang.Comparable · Problem: java.lang. · Reason: When we sort array or collection of primitive or wrapper classes it works ......