Bug: Unable to start embedded cassandra on JDK 11
Status: Resolved
Priority: Normal
Resolution: Fixed
Created: 05/Jan/20 22:57
Resolved: 13/Jan/20 13:49

Cassandra fails to start without the following jvm options from jvm-11-server.options:
{code:java}
-Djdk.attach.allowAttachSelf=true
--add-exports java.base/jdk.internal.misc=ALL-UNNAMED
--add-exports java.base/jdk.internal.ref=ALL-UNNAMED
--add-exports java.base/sun.nio.ch=ALL-UNNAMED
--add-exports java.management.rmi/com.sun.jmx.remote.internal.rmi=ALL-UNNAMED
--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED
--add-exports java.rmi/sun.rmi.server=ALL-UNNAMED
--add-exports java.sql/java.sql=ALL-UNNAMED

--add-opens java.base/java.lang.module=ALL-UNNAMED
--add-opens java.base/jdk.internal.loader=ALL-UNNAMED
--add-opens java.base/jdk.internal.ref=ALL-UNNAMED
--add-opens java.base/jdk.internal.reflect=ALL-UNNAMED
--add-opens java.base/jdk.internal.math=ALL-UNNAMED
--add-opens java.base/jdk.internal.module=ALL-UNNAMED
--add-opens java.base/jdk.internal.util.jar=ALL-UNNAMED
--add-opens jdk.management/com.sun.management.internal=ALL-UNNAMED
{code}
Without these options the following stack trace appears and prevents startup
{code:java}
2020-01-05T17:42:15,009 ERROR main org.apache.cassandra.service.CassandraDaemon Exception encountered during startup java.lang.ExceptionInInitializerError
	at org.apache.cassandra.config.DatabaseDescriptor.guessFileStore(DatabaseDescriptor.java:1127)
	at org.apache.cassandra.config.DatabaseDescriptor.applySimpleConfig(DatabaseDescriptor.java:541)
	at org.apache.cassandra.config.DatabaseDescriptor.applyAll(DatabaseDescriptor.java:340)
	at org.apache.cassandra.config.DatabaseDescriptor.daemonInitialization(DatabaseDescriptor.java:168)
	at org.apache.cassandra.config.DatabaseDescriptor.daemonInitialization(DatabaseDescriptor.java:152)
	at org.apache.cassandra.service.CassandraDaemon.applyConfig(CassandraDaemon.java:665)
	at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:609)
	at org.jesterj.ingest.persistence.Cassandra.start(Cassandra.java:135)
	at org.jesterj.ingest.scanners.SimpleFileScannerImplFTITest.testScanWithMemory(SimpleFileScannerImplFTITest.java:63)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.RuntimeException: java.lang.IllegalAccessException: access to public member failed: jdk.internal.ref.Cleaner.clean[Ljava.lang.Object;@779dfe55/invokeVirtual, from org.apache.cassandra.io.util.FileUtils (unnamed module @2eda0940)
	at org.apache.cassandra.io.util.FileUtils.<clinit>(FileUtils.java:95)
	... 33 more
Caused by: java.lang.IllegalAccessException: access to public member failed: jdk.internal.ref.Cleaner.clean[Ljava.lang.Object;@779dfe55/invokeVirtual, from org.apache.cassandra.io.util.FileUtils (unnamed module @2eda0940)
	at java.base/java.lang.invoke.MemberName.makeAccessException(MemberName.java:942)
	at java.base/java.lang.invoke.MethodHandles$Lookup.checkAccess(MethodHandles.java:2206)
	at java.base/java.lang.invoke.MethodHandles$Lookup.checkMethod(MethodHandles.java:2146)
	at java.base/java.lang.invoke.MethodHandles$Lookup.getDirectMethodCommon(MethodHandles.java:2290)
	at java.base/java.lang.invoke.MethodHandles$Lookup.getDirectMethodNoSecurityManager(MethodHandles.java:2283)
	at java.base/java.lang.invoke.MethodHandles$Lookup.unreflect(MethodHandles.java:1747)
	at org.apache.cassandra.io.util.FileUtils.<clinit>(FileUtils.java:86)
	... 33 more
{code}
Use of --add-exports is described in the oracle documentation as
{quote}You may use the --add-exports option as a temporary workaround to compile source code with references to JDK internal classes.
{quote}
which implies that this will not work forever.  Also the code in FileUtils seems somewhat confused as it prints out a warning, as if it means to allow startup with a lower performance expectation, and then throws an exception that entirely prevents startup.