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Upgrade from Java 8 to Java 11 #3

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13 changes: 5 additions & 8 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -29,17 +29,14 @@ The source code for all examples can be found in the directory [src/main/java/la
* Appendix D: Lambdas and JVM bytecode
We will update the repository as we update the book. Stay tuned!

### Make sure to have JDK8 installed
The latest binary can be found here: http://www.oracle.com/technetwork/java/javase/overview/java8-2100321.html
### Make sure to have JDK 11+ installed
The latest binary can be found here: https://adoptium.net/temurin/releases/?version=11

$ java -version

java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)


You can download a preview version here: https://jdk8.java.net/
openjdk version "11.0.x"
OpenJDK Runtime Environment (build 11.0.x+x)
OpenJDK 64-Bit Server VM (build 11.0.x+x, mixed mode)

### Compile/Run the examples
Using maven:
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9 changes: 6 additions & 3 deletions pom.xml
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Expand Up @@ -10,6 +10,8 @@

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>

<dependencies>
Expand All @@ -35,10 +37,11 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<version>3.8.1</version>
<configuration>
<source>1.9</source>
<target>1.9</target>
<source>11</source>
<target>11</target>
<release>11</release>
</configuration>
</plugin>
<plugin>
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