Instead, you need to install a special version of the JDK that you can download from here. Install DCEVM in Java 11įor Java 11, there is no patch program. In general this should not be a big problem if you run it only on a development machine which usually sits protected behind a corporate firewall. Of course, using an ancient version of the JDK introduces a certain security risk. You can find archived versions of the JDK here. The DCEVM provided on Github will simply not work with later versions. Important note for Windows: the latest supported version of Java 8 is 1.8.0_u 181. A special version of the main jvm library is installed (in jre/lib/dcevm/) which is used instead of the vanilla library when starting the JVM with this command line argument: java -XXaltjvm=dcevm -version Patching the JDK in this way does not alter the Java VM itself. Therefore I recommend the other choice in the patcher program, Install DCEVM as altjvm. If you select the replace option, you won’t need the -XXaltjvm argument in your program launch VM arguments but you also won’t be able to switch hotswapping off. The patcher program offers you a choice to either replace the standard JVM with DCEVM or install DCEVM alongside as altjvm. The patcher program itself is a Java jar called DCVM-8u181-installer-build2.jar which you can download from here. Download the patcher program, start it and then select the directory where your JDK lives in order to patch it. ![]() You can turn an existing installation of the JVM into a DCEVM version by patching it.
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