Oct 18, 2018 · This error message shows that the Tomcat is 8.0.30, and I am using JDK 8. I am creating a Spring-boot project. Some suggested that JDK 8 should be used.
Feb 4, 2018 · After some trial and error, I was able to fix the "Invalid byte tag in constant pool: 19" issue by changing the way the plugin is declared, ...
Aug 7, 2024 · I Googled it, and it's caused by Tomcat 8 not being able to handle a certain kind of class, but Tomcat 9 can handle it fine.
Mar 26, 2021 · ... ClassFormatException: Invalid byte tag in constant pool: 19. I hope someone can help me. Thank you! pa.f....@gmail.com's profile photo. pa.f ...
Aug 31, 2021 · Issue: If you upgraded Jasperserver and tomcat along with jdk version then you will face this issue. Error trace: "SEVERE: Unable to process ...
Oct 28, 2020 · The failure occurs when scanning module-info.class which is known to use the Java 9 class file format. Java 9 class file support was added in 7.0.76 onwards.
Apr 24, 2018 · I got the error: org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19 Apparently, log4j2 is a multi-release jar.
... ClassFormatException: Invalid byte tag in constant pool: 19. this also happen for. webapps/ROOT/WEB-INF/lib/bcprov-jdk15on-164.jar. webapps/ROOT/WEB-INF/lib ...
May 20, 2018 · Solution: Not sure what is the reason, to fix it, just upgrade Tomcat to the latest version, for example Tomcat 7.0.65. Tested with success.
Nov 27, 2020 · ... ClassFormatException: Invalid byte tag in constant pool: 19 at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:97)
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