FULL PRODUCT VERSION :
$ java -version
openjdk version "9.0.1"
OpenJDK Runtime Environment (build 9.0.1+11)
OpenJDK 64-Bit Server VM (build 9.0.1+11, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
$ uname -a
Linux benchserver5 4.10.13-1.el7.elrepo.x86_64 #1 SMP Thu Apr 27 12:06:06 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux

EXTRA RELEVANT SYSTEM CONFIGURATION :
$ mvn -version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T15:39:06-04:00)
Maven home: /home/benchuser/tools/apache-maven-3.5.0
Java version: 9.0.1, vendor: Oracle Corporation
Java home: /usr/lib/jvm/openjdk-9.0.1
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "4.10.13-1.el7.elrepo.x86_64", arch: "amd64", family: "unix"

A DESCRIPTION OF THE PROBLEM :
 When attempting to follow the build instructions for the OpenJDK jcstress project the build fails. This is the initial attempt on the machine.

 Instructions followed are on this page. "Scenario 2 Building and running the entire suite of existing tests"

 When the build is executed this is the console output

[benchuser@someserver jcstress]$ mvn package -e
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/archetype/archetype-packaging/2.2/archetype-packaging-2.2.pom
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Unresolveable build extension: Plugin org.apache.maven.archetype:archetype-packaging:2.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2 @
[ERROR] Unknown packaging: maven-archetype @ org.openjdk.jcstress:jcstress-java-test-archetype:[unknown-version], /home/benchuser/code/jcstress/jcstress-java-test-archetype/pom.xml, line 37, column 16
 @
[ERROR] The build could not read 1 project -> [Help 1]
org.apache.maven.project.ProjectBuildingException: Some problems were encountered while processing the POMs:
[ERROR] Unresolveable build extension: Plugin org.apache.maven.archetype:archetype-packaging:2.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2 @
[ERROR] Unknown packaging: maven-archetype @ org.openjdk.jcstress:jcstress-java-test-archetype:[unknown-version], /home/benchuser/code/jcstress/jcstress-java-test-archetype/pom.xml, line 37, column 16

at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:382)
at org.apache.maven.graph.DefaultGraphBuilder.collectProjects(DefaultGraphBuilder.java:400)
at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor(DefaultGraphBuilder.java:391)
at org.apache.maven.graph.DefaultGraphBuilder.build(DefaultGraphBuilder.java:78)
at org.apache.maven.DefaultMaven.buildGraph(DefaultMaven.java:511)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:221)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)
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:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR]
[ERROR] The project org.openjdk.jcstress:jcstress-java-test-archetype:0.5-SNAPSHOT (/home/benchuser/code/jcstress/jcstress-java-test-archetype/pom.xml) has 2 errors
[ERROR] Unresolveable build extension: Plugin org.apache.maven.archetype:archetype-packaging:2.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2: Could not transfer artifact org.apache.maven.archetype:archetype-packaging:pom:2.2 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty -> [Help 2]
org.apache.maven.plugin.PluginManagerException: Plugin org.apache.maven.archetype:archetype-packaging:2.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupExtensionsRealm(DefaultMavenPluginManager.java:848)
at org.apache.maven.project.DefaultProjectBuildingHelper.createProjectRealm(DefaultProjectBuildingHelper.java:196)
at org.apache.maven.project.DefaultModelBuildingListener.buildExtensionsAssembled(DefaultModelBuildingListener.java:99)
at org.apache.maven.model.building.ModelBuildingEventCatapult$1.fire(ModelBuildingEventCatapult.java:44)
at org.apache.maven.model.building.DefaultModelBuilder.fireEvent(DefaultModelBuilder.java:1348)
at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:443)
at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:423)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:580)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:586)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:371)
at org.apache.maven.graph.DefaultGraphBuilder.collectProjects(DefaultGraphBuilder.java:400)
at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor(DefaultGraphBuilder.java:391)
at org.apache.maven.graph.DefaultGraphBuilder.build(DefaultGraphBuilder.java:78)
at org.apache.maven.DefaultMaven.buildGraph(DefaultMaven.java:511)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:221)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)
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:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.archetype:archetype-packaging:2.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal(DefaultPluginDependenciesResolver.java:214)
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:149)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.resolveExtensionArtifacts(DefaultMavenPluginManager.java:910)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupExtensionsRealm(DefaultMavenPluginManager.java:841)
... 27 more
Caused by: org.eclipse.aether.collection.DependencyCollectionException: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:217)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:325)
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal(DefaultPluginDependenciesResolver.java:202)
... 30 more
Caused by: org.eclipse.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-packaging:jar:2.2
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:283)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:199)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:211)
... 32 more
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not transfer artifact org.apache.maven.archetype:archetype-packaging:pom:2.2 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:453)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:255)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:232)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:268)
... 34 more
Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact org.apache.maven.archetype:archetype-packaging:pom:2.2 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:52)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:364)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:76)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:590)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:258)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:529)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:430)
... 37 more
Caused by: org.apache.maven.wagon.TransferFailedException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1068)
at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:962)
at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:126)
at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88)
at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run(WagonTransporter.java:569)
at org.eclipse.aether.transport.wagon.WagonTransporter.execute(WagonTransporter.java:436)
at org.eclipse.aether.transport.wagon.WagonTransporter.get(WagonTransporter.java:413)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:456)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:359)
... 42 more
Caused by: javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.base/sun.security.ssl.Alerts.getSSLException(Alerts.java:214)
at java.base/sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1969)
at java.base/sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1921)
at java.base/sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1904)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1436)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.execute(AbstractHttpClientWagon.java:834)
at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:985)
... 51 more
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.base/sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:89)
at java.base/sun.security.validator.Validator.getInstance(Validator.java:181)
at java.base/sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:330)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:180)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:192)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:133)
at java.base/sun.security.ssl.ClientHandshaker.checkServerCerts(ClientHandshaker.java:1825)
at java.base/sun.security.ssl.ClientHandshaker.certificateStatus(ClientHandshaker.java:1676)
at java.base/sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:272)
at java.base/sun.security.ssl.Handshaker.processLoop(Handshaker.java:1086)
at java.base/sun.security.ssl.Handshaker.processRecord(Handshaker.java:1020)
at java.base/sun.security.ssl.SSLSocketImpl.processInputRecord(SSLSocketImpl.java:1137)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1074)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
at java.base/sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1402)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1429)
... 65 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.base/java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200)
at java.base/java.security.cert.PKIXParameters.<init>(PKIXParameters.java:120)
at java.base/java.security.cert.PKIXBuilderParameters.<init>(PKIXBuilderParameters.java:104)
at java.base/sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:86)
... 80 more
[ERROR] Unknown packaging: maven-archetype @ org.openjdk.jcstress:jcstress-java-test-archetype:[unknown-version], /home/benchuser/code/jcstress/jcstress-java-test-archetype/pom.xml, line 37, column 16
[ERROR]
[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/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException
[benchuser@someserver jcstress]$


REGRESSION. Last worked in version 8u144

ADDITIONAL REGRESSION INFORMATION:
$ java -version
openjdk version "9.0.1"
OpenJDK Runtime Environment (build 9.0.1+11)
OpenJDK 64-Bit Server VM (build 9.0.1+11, mixed mode)

I could not get my hands on a 9.0.0 release binary to check when exactly this regression began.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create a directory called acme that will be the package for the object.
Save the sample code as a file called 'Sample.java'
Compile the class.
Run the class.

$ mkdir acme
      save the code in the acme directory
$ javac acme/Sample.java
$ java acme.Sample


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Relax. All is well in the world.

ACTUAL -
$ java acme.Sample
Exception in thread "main" javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.base/sun.security.ssl.Alerts.getSSLException(Alerts.java:214)
at java.base/sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1969)
at java.base/sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1921)
at java.base/sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1904)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1436)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:163)
at acme.Sample.main(Sample.java:10)
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.base/sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:89)
at java.base/sun.security.validator.Validator.getInstance(Validator.java:181)
at java.base/sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:330)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:180)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:192)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:133)
at java.base/sun.security.ssl.ClientHandshaker.checkServerCerts(ClientHandshaker.java:1825)
at java.base/sun.security.ssl.ClientHandshaker.certificateStatus(ClientHandshaker.java:1676)
at java.base/sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:272)
at java.base/sun.security.ssl.Handshaker.processLoop(Handshaker.java:1086)
at java.base/sun.security.ssl.Handshaker.processRecord(Handshaker.java:1020)
at java.base/sun.security.ssl.SSLSocketImpl.processInputRecord(SSLSocketImpl.java:1137)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1074)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
at java.base/sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1402)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1429)
... 5 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.base/java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200)
at java.base/java.security.cert.PKIXParameters.<init>(PKIXParameters.java:120)
at java.base/java.security.cert.PKIXBuilderParameters.<init>(PKIXBuilderParameters.java:104)
at java.base/sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:86)
... 20 more


ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package acme;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;

public class Sample {
   public static void main(String[] args) throws IOException{
URLConnection conn = new URL("https://repo.maven.apache.org/maven2/org/apache/maven/archetype/archetype-packaging/2.2/archetype-packaging-2.2.pom").openConnection();
conn.connect();
System.out.println("Relax. All is well in the world.");
   }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Use a binary distribution packaged and available from GitHub.

https://github.com/AdoptOpenJDK/openjdk9-releases/releases
https://github.com/AdoptOpenJDK/openjdk9-releases/releases/download/jdk-9%2B181/OpenJDK9_x64_Linux_jdk-9.181.tar.gz