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java -version
export JAVA_HOME=/usr/local/java6 # or /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home on macOS export PATH=$JAVA_HOME/bin:$PATH java -version Use jenv or /usr/libexec/java_home -v 1.6 :
java version "1.6.0_45" Java(TM) SE Runtime Environment (build 1.6.0_45-b06) Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode) If you have multiple Java versions installed, you will need to manage which one is active (see below). If you already have a modern Java installed, do not change your system PATH . Instead, use version managers or full paths.
"C:\Program Files\Java\jdk1.6.0_45\bin\java" -jar yourLegacyApp.jar
java -source 1.6 -target 1.6 -Djava.security.manager=allow -jar yourapp.jar (However, this does not work for apps that rely on removed internal APIs.)
If you just need to run an old .jar file, try using Java 8 first. It is much safer and still compatible with most Java 6 programs. You can download Java 8 from Adoptium .
java -version
export JAVA_HOME=/usr/local/java6 # or /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home on macOS export PATH=$JAVA_HOME/bin:$PATH java -version Use jenv or /usr/libexec/java_home -v 1.6 :
java version "1.6.0_45" Java(TM) SE Runtime Environment (build 1.6.0_45-b06) Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode) If you have multiple Java versions installed, you will need to manage which one is active (see below). If you already have a modern Java installed, do not change your system PATH . Instead, use version managers or full paths.
"C:\Program Files\Java\jdk1.6.0_45\bin\java" -jar yourLegacyApp.jar
java -source 1.6 -target 1.6 -Djava.security.manager=allow -jar yourapp.jar (However, this does not work for apps that rely on removed internal APIs.)
If you just need to run an old .jar file, try using Java 8 first. It is much safer and still compatible with most Java 6 programs. You can download Java 8 from Adoptium .
