Server deployment: introducing tools.jar

During the deployment of finebi5.1 project, the server encounters an error of 500, as shown in the following figure:

In Finereport V10.0 & Finebi V5.1, Java agent and JVMTI technology are introduced, which are respectively used for AOP programming, key class protection and implementation of forced memory recycling.

Both Java Agent and JVMTI are Agents of JVM. The difference is that the former is implemented in Java and the latter is implemented in C++. Therefore, in addition to JRE, tools.jar in JDK are also required during runtime (toolkit including java compiler, dynamic loading Agent, etc.).

tools. Jar is a platform related toolkit, different platforms (Windows, Linux, OS X, etc.), different versions of JRE, and tools.jar versions that can be used normally  are different, so you need to pay attention to matching when using.

Note 1: Tomcat is taken as an example for demonstration. Other containers are also copied to the lib of the corresponding container.

Note 2: tools.jar under %JAVA_HOME%/jdk/lib is the local file of the deployment server JAVA_HOME, not development computer local file.

Copy the tools.jar under %JAVA_HOME%/jdk/lib to the deployed server: 

%TOMCAT_HOME%/lib and%TOMCAT_HOME%/webapps/project name/WEB_INF/lib, as shown in the following figure：

If there is no attach.dll file under the %JRE_HOME%/bin pointed to by the environment variable, it is also necessary to copy the attach.dll file under the %JAVA_HOME%/jdk/jre/bin to this path, as shown in the following figure: