Another example of this is when you use (Java 9+) java SomeClass.java to compile and run a class. If the class depends on another class that you haven't compiled (or recompiled), you are liable to get …

When I compile a Java project using IntelliJ IDEA, it gives me the following output (and error): Information:Eclipse compiler 4.6.2 was used to compile java sources Information:Module "sinoWeb" …

How can I tell what version of the Java compiler was used to build a jar? I have a jar file, and it could have been built in any one of three JDKs. We need to know exactly which one, so we can ce...

Maven that wraps the javac command provides multiple ways to convey all these JVM standard options. How to specify the JDK version? Using maven-compiler-plugin or maven.compiler.source / …

Btw, the reason that you're having trouble is that the java compiler recognizes two version flags. There is -source 1.5, which assumes java 1.5 level source code, and -target 1.5, which will emit java 1.5 …

Be sure to add the \bin after the JDK directory, because this points to "javac" and "java" (BIN stands for "binaries") This way, you can run the Java compiler from anywhere.

Explains the differences between using properties and compiler plugin for specifying Java version in Maven.

4 Eclipse's compiler can assure that your java sources conform to a given JDK version even if you don't have that version installed. This feature is useful for ensuring backwards compatibility of your code. …

This works great, except that in my poms I specify that the maven-compiler-plugin should use JDK 1.6, and when I import, IDEA informs me that the Language Level Changed and that Language level …

Perhaps the most beginner-friendly way to compile a JAR from your Java code is to use an IDE (integrated development environment; essentially just user-friendly software for development) like …