Gradle – bootstrap class path not set in conjunction with -source 1.5

My environment :

While gradle builld the project, I get following compile warning message :


:compileJavawarning: [options] bootstrap class path not set in conjunction with -source 1.5
1 warning

Figure : Eclipse console view.

Solution

The warning is saying you are using JDK 1.7, but try to compile the project with older version Java, for example JDK 1.5 or JDK 1.6

To fix it, set both “source” and “target” to JDK 1.7.

build.gradle


apply plugin: 'java'

sourceCompatibility = 1.7
targetCompatibility = 1.7

Written by mkyong

Software Engineer • Writer • Dad

20+ years hands-on, writing about Java, Spring, and AI. Every code example here is tested.

One comment on “Gradle – bootstrap class path not set in conjunction with -source 1.5”

Francis Trujillo

Thank you.Thank you. Thank you.