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When starting the application or compiling JSP via ant, Tomcat 7 Jasper complains about superfluous or misplaced JAR file. I got below message
**compile-jsp:** [jasper] Jul 31, 2012 7:15:15 PM org.apache.jasper.compiler.TldLocationsCache tldScanJar [jasper] INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. how to Skipping unneeded JARs during scanning can improve startup time and JSP compilation time in tomcat?
how to enable better output?
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If you want to redistribute your tag files or implement your custom tags with tag handlers written in Java, you must declare the tags in a tag library descriptor (TLD). A tag library descriptor is an XML document that contains information about a library as a whole and about each tag contained in the library.
On startup, Tomcat recursively scans the WEB-INF directories for TLD (Tag Library Descriptor) files. As a result, if a webapp has a lot of files under that directory, it slows down the startup process.
Tomcat 8.5. Inside catalina.properties, located in the /conf directory set:
tomcat.util.scan.StandardJarScanFilter.jarsToSkip=\*.jar Or go into context.xml, located in Tomcat's /conf directory and add:
<JarScanner scanClassPath="false"/> For Tomcat 8, I had to add the following line to tomcat/conf/logging.properties for the jars scanned by Tomcat to show up in the logs:
org.apache.jasper.servlet.TldScanner.level = FINE If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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