use -source 8 or higher to enable lambda expressions

Question

I'm facing a build error when I try to run a Maven build. I created a simple Java project which includes lambda functions, due to this I'm getting

[ERROR] (...) lambda expressions are not supported in -source 1.5
[ERROR]   (use -source 8 or higher to enable lambda expressions)

My Java version is 1.8.0_172, my Maven version is 3.6.0.

you can also provide the respective properties [like this](https://stackoverflow.com/a/59733198/1529709), without editing a POM — zb226, Jan 14 '20 at 21:06

score 12 · Answer 1 · answered Jan 31 '19 at 13:30

12

Add to your pom.xml

<properties>
    <java.version>1.8</java.version>
    <maven.compiler.source>${java.version}</maven.compiler.source>
    <maven.compiler.target>${java.version}</maven.compiler.target>
</properties>

answered Jan 31 '19 at 13:30

Bor Laze

2,458
12
20

score 3 · Answer 2 · answered Jan 31 '19 at 13:35

3

use maven compiler 1.8 or greater to enable lambda expressions in your code. Add the compiler as properties in your pom.xml

answered Jan 31 '19 at 13:35

Sugandha Mishra

69
7

use -source 8 or higher to enable lambda expressions

2 Answers2

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