I have a simple build script (shorted for clarity) which uses Guava
as a dependency
group 'test'
version '0.1.0'
apply plugin: 'java'
apply plugin: 'application'
sourceCompatibility = 1.8
targetCompatibility = 1.8
mainClassName = 'Test'
repositories {mavenCentral()}
task wrapper(type: Wrapper) {gradleVersion = '3.5'}
dependencies {compile 'com.google.guava:guava:21.0'}
When running this code:
public class Test {
public static void main(String[] args) {
LoadingCache<Long, String> applicantCache = CacheBuilder.newBuilder()
.maximumSize(30000)
.expireAfterAccess(31, TimeUnit.DAYS)
.build(new CacheLoader<Long, String>() {
@Override
public String load(Long key) {
return "";
}
});
}
}
I get this error:
java.lang.NoClassDefFoundError: com/google/common/cache/CacheLoader
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.lang.Class.getMethod(Class.java:1784)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: com.google.common.cache.CacheLoader
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 7 more
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main"
When downgrading the Gradle Wrapper
version to 3.3
the problem is fixed but, I need version 3.5
for something else that is not feasible in version 3.3
. As far as I can understand there is some dependency conflict between this version of Gradle
and Guava
but according to this post - it is not possible.
I know the jar
is in place + using gradle dependencyInsight --dependency com.google.guava
shows that the dependency exists:
:dependencyInsight
com.google.guava:guava:21.0
\--- compile
Thanks for any help