Have recently updated application from Oracle Java 9 to AdoptJDk 11.0.6 and I am now seeing errors of the form this code: public static String convertWikidataUrl(String wikidataUrl) { String qP...

On a MacBook Pro (2015) with fresh-installed Big Sur and AdoptOpenJDK 11 I developed a Java program for educational purpose that uses the JFileChooser. I did not use any IDE-specific code. As the r...

I have a Idea Intellij project like this: Test.java: public class Test { public static void main(String[] args) { System.out.println("Test"); } } pom.xml: <?xml version="1.0&q...

I wanted to update my JDK, so I went to AdoptOpenJDK to download one. I saw that they have moved to Adoptium, and so I went over there. There I saw that there were no options to choose the JVM, and...

Is there a way to get a comprehensive list of VM options for Java Flight Recorder (JFR). I am particularly interested in OpenJdk 8 & OpenJdk 11 so far I find this list quite usefull https://chr...

trying to run gitblit, on tomcat 9, using JDK 11 occassionaly results in this stack trace: gitblit | 07-May-2020 04:30:39.247 SEVERE [https-jsse-nio-8443-exec-10] org.apache.tomcat.util.net.NioEnd...

I'm trying to move my code from Java 8 to Java 11, this code... private static String readMultiHttpsUrlResultAsString(List<String> mbRecordingIds, String level) throws Exception { String r...

Is AdoptOpenJDK's JRE 11+ the same as just using jlink and adding all dependencies? Oracle Java 11 onwards doesn't come with JRE only JDK because you can build your own JRE containing only the sys...

Java Cryptography Extension (JCE) can be found here, but that page says Current versions of the JDK do not require these policy files. They are provided here for use with older version of the JD...

There are two sets of binaries available on AdoptOpenJDK site now: OpenJDK binaries - this is visible in the main part of the web page. Those are build using scripts from AdoptOpenJDK/openjdk-bui...

Due to recent Oracle Java SE Support Roadmap policy update (end of $free release updates from Oracle after March 2019 in particular), I've been searching for alternatives to Oracle Java. I've found...

I am trying to run some JUnit tests over cassandra. But I get the following error: [08/12/19 10:48:40:411](main)([]) INFO - c.h.c.c.e.EmbeddedCassandra - Starting embedded Cassandra server. 8/12/...

I can monitor applications with VisualVM if I use the AdoptOpenJDK HotSpot build for Java8. If I use the OpenJ9 build, VisualVM displays the error "Local applications cannot be detected". Did anyb...

When compiling with ant, calls to sun.awt.AppContext work, however the same code compiled with IntelliJ fails using AdoptOpenJDK11. sun.awt.AppContext with Oracle JDK8 works with IntelliJ sun.awt...