Skip scriptdef-test.xml antunit tests for JDK >=15 due to unavailability of script engine for "javascript" language in JRE
diff --git a/src/tests/antunit/taskdefs/optional/script/scriptdef-test.xml b/src/tests/antunit/taskdefs/optional/script/scriptdef-test.xml
index b604aa2..e2a7718 100644
--- a/src/tests/antunit/taskdefs/optional/script/scriptdef-test.xml
+++ b/src/tests/antunit/taskdefs/optional/script/scriptdef-test.xml
@@ -26,13 +26,17 @@
</description>
<condition property="prereqs-ok">
- <or>
- <and>
- <available classname="org.apache.bsf.BSFManager" />
- <available classname="org.apache.bsf.engines.javascript.JavaScriptEngine" />
- </and>
- <available classname="javax.script.ScriptEngineManager" />
- </or>
+ <and>
+ <!-- Starting Java 15, there's no "javascript" script engine (not even nashorn) bundled in JRE -->
+ <javaversion atmost="14"/>
+ <or>
+ <and>
+ <available classname="org.apache.bsf.BSFManager" />
+ <available classname="org.apache.bsf.engines.javascript.JavaScriptEngine" />
+ </and>
+ <available classname="javax.script.ScriptEngineManager" />
+ </or>
+ </and>
</condition>
<!-- auto doesn't verify the language is supported and selects BSF
