4.0.6 - OpenAPI plugin throws Cannot invoke "String.hashCode()" because "<local2>" is null fix #3772

Author: jknack

modules/jooby-gradle-plugin/src/main/java/io/jooby/gradle/OpenAPITask.java

@@ -69,7 +69,9 @@ public void generate() throws Throwable {
     tool.setClassLoader(classLoader);
     tool.setOutputDir(outputDir);
     tool.setSources(sources);
-    tool.setSpecVersion(specVersion);
+    if (specVersion != null) {
+      tool.setSpecVersion(specVersion);
+    }
     trim(includes).ifPresent(tool::setIncludes);
     trim(excludes).ifPresent(tool::setExcludes);