Do not add 'listenablefuture' capability to 'listenablefuture' itself

src/main/java/org/gradlex/jvm/dependency/conflict/detection/rules/CapabilityDefinition.java

@@ -203,8 +203,7 @@ public enum CapabilityDefinition {
             "org.lz4:lz4-java"
     ),
     LISTENABLEFUTURE(FIRST_MODULE, "com.google.guava", GuavaListenableFutureRule.class,
-            "com.google.guava:guava",
-            "com.google.guava:listenablefuture"
+            "com.google.guava:guava"
     ),
     HAMCREST_LIBRARY(FIRST_MODULE,
             "org.hamcrest:hamcrest",

src/test/groovy/org/gradlex/jvm/dependency/conflict/test/CapabilityWithDifferentVersionsTest.groovy

@@ -41,4 +41,29 @@ class CapabilityWithDifferentVersionsTest extends Specification {
         expect:
         printJars()
     }
+
+    def "does not fail with empty listenable future dependency on the classpath"() {
+        given:
+        buildFile << """
+            plugins {
+                id("org.gradlex.jvm-dependency-conflict-resolution")
+                id("java-library")
+            }
+            tasks.withType<JavaCompile>().configureEach {
+                options.release = 17
+            }
+            repositories.mavenCentral()
+            dependencies {
+                 implementation(platform("com.google.cloud:spring-cloud-gcp-dependencies:5.2.0"))
+                 implementation("com.google.cloud:spring-cloud-gcp-starter-bigquery") //  <--- (1)
+            }
+
+            tasks.register("printJars") {
+                println(configurations.compileClasspath.get().files.joinToString("\\n") { it.name })
+            }
+        """
+
+        expect:
+        printJars()
+    }
 }