llegal reflective access on JDK > 9

[jokarl]

With the new module system in Java, this artifact accesses illegal classes.

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.wildfly.openssl.ByteBufferUtils (file:/home/xx/.m2/repository/com/microsoft/azure/azure-data-lake-store-sdk/2.3.3/azure-data-lake-store-sdk-2.3.3.jar) to method java.nio.DirectByteBuffer.cleaner()
WARNING: Please consider reporting this to the maintainers of org.wildfly.openssl.ByteBufferUtils

This specific error is from the Azure Data Lake SDK, which uses:

<dependency>
	<groupId>org.wildfly.openssl</groupId>
	<artifactId>wildfly-openssl</artifactId>
	<version>1.0.0.CR5</version>
</dependency>

Here's the stacktrace from my use case:

[ERROR] TaskUtils$LoggingErrorHandler - Unexpected error occurred in scheduled task. <java.util.concurrent.CompletionException: java.lang.ExceptionInInitializerError>java.util.concurrent.CompletionException: java.lang.ExceptionInInitializerError
	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314)
	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1739)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ExceptionInInitializerError
	at org.wildfly.openssl.ByteBufferUtils.<clinit>(ByteBufferUtils.java:39)
	at org.wildfly.openssl.OpenSSLEngine.readEncryptedData(OpenSSLEngine.java:338)
	at org.wildfly.openssl.OpenSSLEngine.wrap(OpenSSLEngine.java:444)
	at java.base/javax.net.ssl.SSLEngine.wrap(SSLEngine.java:479)
	at org.wildfly.openssl.OpenSSLSocket.write(OpenSSLSocket.java:501)
	at org.wildfly.openssl.OpenSSLOutputStream.write(OpenSSLOutputStream.java:46)
	at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81)
	at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142)
	at java.base/java.io.PrintStream.flush(PrintStream.java:417)
	at java.base/sun.net.www.MessageHeader.print(MessageHeader.java:301)
	at java.base/sun.net.www.http.HttpClient.writeRequests(HttpClient.java:655)
	at java.base/sun.net.www.http.HttpClient.writeRequests(HttpClient.java:666)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:711)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1602)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1509)
	at java.base/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:527)
	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:329)
	at com.microsoft.azure.datalake.store.HttpTransport.makeSingleCall(HttpTransport.java:307)
	at com.microsoft.azure.datalake.store.HttpTransport.makeCall(HttpTransport.java:90)
	at com.microsoft.azure.datalake.store.Core.mkdirs(Core.java:429)
	at com.microsoft.azure.datalake.store.ADLStoreClient.createDirectory(ADLStoreClient.java:591)
	at storemanager.azure.DataLakeController.createFolder(DataLakeController.java:50)
	at storemanager.azure.DataLakeController.createAndWriteToFile(DataLakeController.java:92)
	at storemanager.socket.GateMasterConnection.uploadLogs(GateMasterConnection.java:154)
	at storemanager.azure.gatemaster.ManagedGateMaster.uploadLogs(ManagedGateMaster.java:129)
	at storemanager.azure.gatemaster.ManagedGateMaster.lambda$1(ManagedGateMaster.java:98)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
	... 3 more
Caused by: java.lang.IllegalAccessException: class org.wildfly.openssl.ByteBufferUtils cannot access class jdk.internal.ref.Cleaner (in module java.base) because module java.base does not export jdk.internal.ref to unnamed module @19e7a160
	at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
	at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591)
	at java.base/java.lang.reflect.Method.invoke(Method.java:558)
	at org.wildfly.openssl.ByteBufferUtils.<clinit>(ByteBufferUtils.java:36)
	... 29 more

It is manageable right now by appending --add-exports java.base/jdk.internal.ref=ALL-UNNAMED to your JVM launch arguments, that way you only get warned and the execution works as before the module system.

[jaikiran]

Any chance you can try against 1.0.6.Final of wildfly-openssl?