Use version of JaCoCo compatible with Java 11
diff --git a/pom.xml b/pom.xml
index 115da12..ee85be0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -215,7 +215,7 @@
     <rat.plugin.version>0.13</rat.plugin.version>

     <pdf.plugin.version>1.2</pdf.plugin.version>

     <cobertura.plugin.version>2.7</cobertura.plugin.version>

-    <jacoco.plugin.version>0.8.1</jacoco.plugin.version>

+    <jacoco.plugin.version>0.8.5</jacoco.plugin.version>

     <release.plugin.version>2.5.3</release.plugin.version>

     <scm.plugin.version>1.9.5</scm.plugin.version>

     <jxr.plugin.version>2.5</jxr.plugin.version>