Issues with some JDK version

[sfc-gh-mrojas]

When testing with some JDK version I encountered an issue getting:

Exception in thread "main" java.lang.IllegalAccessError: class com.snowflake.snowpark.internal.UDFClassPath$ (in unnamed module @0x4bd4bcd4) cannot access class [sun.net](http://sun.net/).www.ParseUtil (in module java.base) because module java.base does not export sun.net.www to unnamed module @0x4bd4bcd4

This issues has been detected before:
https://community.snowflake.com/s/article/JDBC-Driver-Compatibility-Issue-With-JDK-16-and-Later

[sfc-gh-jfreeberg]

Following up on our conversation....

• Which JDK vendor and version was this?
• Was this thrown at build time or run time?

Maybe we can set up a fork of this template with the offending JDK and engineering can use that as the repro?

[sfc-gh-mrojas]

@sfc-gh-jfreeberg This is the configuration I have:

/workspaces/snowpark-scala-template (main) $ mvn -version
Apache Maven 3.9.0 (9b58d2bad23a66be161c4664ef21ce219c2c8584)
Maven home: /usr/local/sdkman/candidates/maven/current
Java version: 11.0.18, vendor: Ubuntu, runtime: /usr/lib/jvm/java-11-openjdk-amd64
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "5.4.0-1105-azure", arch: "amd64", family: "unix"

/workspaces/snowpark-scala-template (main) $ uname -a
Linux codespaces-bda58f 5.4.0-1105-azure #111~18.04.1-Ubuntu SMP Fri Mar 3 22:47:43 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

/workspaces/snowpark-scala-template (main) $ mvn clean compile package
[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< org.example:template-scala >---------------------
[INFO] Building Scala project template for Snowflake 1
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- clean:3.2.0:clean (default-clean) @ template-scala ---
[INFO] Deleting /workspaces/snowpark-scala-template/target
[INFO] 
[INFO] --- resources:3.3.0:resources (default-resources) @ template-scala ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /workspaces/snowpark-scala-template/src/main/resources
[INFO] 
[INFO] --- compiler:3.10.1:compile (default-compile) @ template-scala ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- scala:3.3.2:compile (default) @ template-scala ---
[INFO] /workspaces/snowpark-scala-template/src/main/scala:-1: info: compiling
[INFO] /workspaces/snowpark-scala-template/target/generated-sources/annotations:-1: info: compiling
[INFO] Compiling 3 source files to /workspaces/snowpark-scala-template/target/classes at 1680617605340
[INFO] prepare-compile in 0 s
[INFO] compile in 5 s
[INFO] 
[INFO] --- resources:3.3.0:resources (default-resources) @ template-scala ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /workspaces/snowpark-scala-template/src/main/resources
[INFO] 
[INFO] --- compiler:3.10.1:compile (default-compile) @ template-scala ---
[INFO] Changes detected - recompiling the module!
[INFO] 
[INFO] --- scala:3.3.2:compile (default) @ template-scala ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- resources:3.3.0:testResources (default-testResources) @ template-scala ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /workspaces/snowpark-scala-template/src/test/resources
[INFO] 
[INFO] --- compiler:3.10.1:testCompile (default-testCompile) @ template-scala ---
[INFO] Changes detected - recompiling the module!
[INFO] 
[INFO] --- scala:3.3.2:testCompile (default) @ template-scala ---
[INFO] /workspaces/snowpark-scala-template/src/test/scala:-1: info: compiling
[INFO] /workspaces/snowpark-scala-template/target/generated-test-sources/test-annotations:-1: info: compiling
[INFO] Compiling 2 source files to /workspaces/snowpark-scala-template/target/test-classes at 1680617610607
[INFO] prepare-compile in 0 s
[INFO] compile in 4 s
[INFO] 
[INFO] --- surefire:3.0.0-M8:test (default-test) @ template-scala ---
[INFO] Using auto detected provider org.apache.maven.surefire.junit.JUnit3Provider
[INFO] 
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running org.example.function.ExampleFunctionTest
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.177 s - in org.example.function.ExampleFunctionTest
[INFO] Running org.example.procedure.AppTest
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in org.example.procedure.AppTest
[INFO] 
[INFO] Results:
[INFO] 
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
[INFO] 
[INFO] 
[INFO] --- scalatest:2.0.0:test (test) @ template-scala ---
Discovery starting.
[ScalaTest-main] INFO com.snowflake.snowpark.Session - Closing stderr and redirecting to stdout
[ScalaTest-main] INFO com.snowflake.snowpark.Session - Done closing stderr and redirecting to stdout
[ScalaTest-main] INFO com.snowflake.snowpark.internal.ParameterUtils - set JDBC client memory limit to 10240
Discovery completed in 3 seconds, 168 milliseconds.
Run starting. Expected test count is: 1
ExampleFunctionTest:
ExampleFunction
- should return the concatenated string
AppTest:
org.example.procedure.AppTest *** ABORTED ***
  java.lang.RuntimeException: Unable to load a Suite class org.example.procedure.AppTest that was discovered in the runpath: class com.snowflake.snowpark.internal.UDFClassPath$ (in unnamed module @0x37ea6c0f) cannot access class sun.net.www.ParseUtil (in module java.base) because module java.base does not export sun.net.www to unnamed module @0x37ea6c0f
  at org.scalatest.tools.DiscoverySuite$.getSuiteInstance(DiscoverySuite.scala:80)
  at org.scalatest.tools.DiscoverySuite.$anonfun$nestedSuites$1(DiscoverySuite.scala:38)
  at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:286)
  at scala.collection.Iterator.foreach(Iterator.scala:943)
  at scala.collection.Iterator.foreach$(Iterator.scala:943)
  at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
  at scala.collection.IterableLike.foreach(IterableLike.scala:74)
  at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
  at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
  at scala.collection.TraversableLike.map(TraversableLike.scala:286)
  ...
  Cause: java.lang.IllegalAccessError: class com.snowflake.snowpark.internal.UDFClassPath$ (in unnamed module @0x37ea6c0f) cannot access class sun.net.www.ParseUtil (in module java.base) because module java.base does not export sun.net.www to unnamed module @0x37ea6c0f
  at com.snowflake.snowpark.internal.UDFClassPath$.$anonfun$getPathUsingClassLoader$1(UDFClassPath.scala:101)
  at scala.Option.map(Option.scala:230)
  at com.snowflake.snowpark.internal.UDFClassPath$.getPathUsingClassLoader(UDFClassPath.scala:89)
  at com.snowflake.snowpark.internal.UDFClassPath$.getPathForClass(UDFClassPath.scala:72)
  at com.snowflake.snowpark.internal.UDFClassPath$.<init>(UDFClassPath.scala:23)
  at com.snowflake.snowpark.internal.UDFClassPath$.<clinit>(UDFClassPath.scala)
  at com.snowflake.snowpark.Session.sessionInfo$lzycompute(Session.scala:86)
  at com.snowflake.snowpark.Session.sessionInfo(Session.scala:76)
  at com.snowflake.snowpark.Session$.com$snowflake$snowpark$Session$$setActiveSession(Session.scala:1195)
  at com.snowflake.snowpark.Session$SessionBuilder.createInternal(Session.scala:1327)
  ...
*** RUN ABORTED ***
  java.lang.IllegalAccessError: class com.snowflake.snowpark.internal.UDFClassPath$ (in unnamed module @0x37ea6c0f) cannot access class sun.net.www.ParseUtil (in module java.base) because module java.base does not export sun.net.www to unnamed module @0x37ea6c0f
  at com.snowflake.snowpark.internal.UDFClassPath$.$anonfun$getPathUsingClassLoader$1(UDFClassPath.scala:101)
  at scala.Option.map(Option.scala:230)
  at com.snowflake.snowpark.internal.UDFClassPath$.getPathUsingClassLoader(UDFClassPath.scala:89)
  at com.snowflake.snowpark.internal.UDFClassPath$.getPathForClass(UDFClassPath.scala:72)
  at com.snowflake.snowpark.internal.UDFClassPath$.<init>(UDFClassPath.scala:23)
  at com.snowflake.snowpark.internal.UDFClassPath$.<clinit>(UDFClassPath.scala)
  at com.snowflake.snowpark.Session.sessionInfo$lzycompute(Session.scala:86)
  at com.snowflake.snowpark.Session.sessionInfo(Session.scala:76)
  at com.snowflake.snowpark.Session$.com$snowflake$snowpark$Session$$setActiveSession(Session.scala:1195)
  at com.snowflake.snowpark.Session$SessionBuilder.createInternal(Session.scala:1327)
  ...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  17.675 s
[INFO] Finished at: 2023-04-04T14:13:41Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.scalatest:scalatest-maven-plugin:2.0.0:test (test) on project template-scala: There are test failures -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

[sfc-gh-mrojas]

I just tried out with a devcontainers config. and it works.

// For format details, see https://aka.ms/devcontainer.json. For config options, see the
// README at: https://github.com/devcontainers/templates/tree/main/src/java
{
	"name": "Java",
	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
	"image": "mcr.microsoft.com/devcontainers/java:0-11",
	"features": {
		"ghcr.io/devcontainers/features/java:1": {
			"version": "none",
			"installMaven": "true",
			"installGradle": "false"
		}
	}
}

So it seems like when JDK 17 is also installed there might be some issues.