Zipkiemodule nullpointerexception --------------------------------- Key: DROOLS-3715 URL: https://issues.jboss.org/browse/DROOLS-3715 Project: Drools Issue Type: Bug Affects Versions: 7.16.0.Final, 7.17.0.Final Reporter: Łukasz Szmolke Assignee: Tibor Zimányi Priority: Major o During ZipKieModule loading in “org.drools.compiler.kie.builder.impl.ZipKieModule:142” nullpointerexception is thrown: urlPath = urlPath.substring( urlPath.lastIndexOf( '!' ) + 1 ); ArrayList<ZipEntry> entries = new ArrayList<>(); // read jar file from uber-jar InputStream in = this.getClass().getResourceAsStream(urlPath); // nullpointerexception For example full UrlPath on windows to internal .jar is: C:\Users\xbbnv0c\IdeaProjects\ais-data-exchange\data-exchange-app\target\data-exchange-app-1.0.1-SNAPSHOT.jar!\BOOT-INF\lib\data-exchange-brms-1.0.1-SNAPSHOT.jar So the result of this first line will be: \BOOT-INF\lib\data-exchange-brms-1.0.1-SNAPSHOT.jar It will be perfect, but during accessing internal resource file separator should be “/” not “\”. So InputStream in = null.