Disable scanManifest of Jar Scan in tomcat embed in spring boot

12
votes

I'm getting some warnings in log, like this:

java.io.FileNotFoundException: C:\Users\user\.m2\repository\com\lowagie\itext\2.0.8\bcmail-jdk14-138.jar (O sistema não pode encontrar o arquivo especificado)
    at java.util.zip.ZipFile.open(Native Method) ~[na:1.8.0_121]
    at java.util.zip.ZipFile.<init>(ZipFile.java:219) ~[na:1.8.0_121]
    at java.util.zip.ZipFile.<init>(ZipFile.java:149) ~[na:1.8.0_121]
    at java.util.jar.JarFile.<init>(JarFile.java:166) ~[na:1.8.0_121]
    at java.util.jar.JarFile.<init>(JarFile.java:130) ~[na:1.8.0_121]
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:48) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:338) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:288) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:101) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5178) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) [tomcat-embed-core-8.5.6.jar:8.5.6]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]

In a standalone tomcat I can create a context.xml with:

<Context>
  ...
  <JarScanner scanManifest="false"/>
  ...
</Context>

How can I disable the JarScanner for manifest files (https://tomcat.apache.org/tomcat-8.0-doc/config/jar-scanner.html) in a java configuration class using Spring Boot.

3
tomcatspring-boot

3 Answers

6
votes

This is controllable via a property now: 

# Comma-separated list of additional patterns that match jars to ignore for TLD scanning.    
server.tomcat.additional-tld-skip-patterns=*.jar

via AFTER upgrade from Spring boot 1.2 to 1.5.2, FileNotFoundException during Tomcat 8.5 Startup

10
votes

Edit: how about this?

  @Bean
  public EmbeddedServletContainerFactory embeddedServletContainerFactory() {
    return new TomcatEmbeddedServletContainerFactory() {
      @Override
      protected void postProcessContext(Context context) {
        ((StandardJarScanner) context.getJarScanner()).setScanManifest(false);
      }
    };
  }
7
votes

Just trying to improve Oleg's excellent answer about Spring Boot 1.x..

Here's the corresponding code for Spring Boot 2.0 (Tomcat 8.5):

  @Bean
  public TomcatServletWebServerFactory tomcatFactory() {
    return new TomcatServletWebServerFactory() {
      @Override
      protected void postProcessContext(Context context) {
        ((StandardJarScanner) context.getJarScanner()).setScanManifest(false);
      }
    };
  }

Just add that to your application's configuration.