JSPC Maven Plugin

Sonatype helps open source projects to set up Maven repositories on https://oss.sonatype.org/

License	The Apache Software License, Version 2.0
Categories	Maven Build Tools Jakarta Server Pages Jakarta EE The Web Tier
GroupId	de.mytoys.maven.plugins
ArtifactId	jspc-maven-plugin
Last Version	1.1.0
Release Date	Jun 5, 2011
Type	maven-plugin
Description	JSPC Maven Plugin Sonatype helps open source projects to set up Maven repositories on https://oss.sonatype.org/
Project URL	https://github.com/lenniboy/jspc-maven-plugin#readme
Source Code Management	https://github.com/lenniboy/jspc-maven-plugin

Download jspc-maven-plugin

Filename	Size
jspc-maven-plugin-1.1.0.pom
jspc-maven-plugin-1.1.0.jar	16 KB
jspc-maven-plugin-1.1.0-sources.jar	9 KB
jspc-maven-plugin-1.1.0-javadoc.jar	31 KB

How to add to project

Apache Maven

<plugin>
    <groupId>de.mytoys.maven.plugins</groupId>
    <artifactId>jspc-maven-plugin</artifactId>
    <version>1.1.0</version>
</plugin>

Dependencies

compile (9)

Group / Artifact	Type	Version
org.apache.tomcat : jasper	jar	6.0.32
org.eclipse.jdt.core.compiler : ecj	jar	3.5.1
org.apache.ant : ant	jar	1.8.2
org.eclipse.jetty : jetty-util	jar	7.4.1.v20110513
org.apache.maven : maven-project	jar	2.0.3
org.apache.maven : maven-plugin-api	jar	2.0.3
org.apache.maven : maven-artifact	jar	2.0.3
org.apache.maven : maven-plugin-tools-api	jar	2.0.3
javax.servlet : servlet-api	jar	2.5

Project Modules

There are no modules declared in this project.

JSPC Maven Plugin

This plugin precompiles JSPs. It is a fork of jetty-jspc-maven-plugin and configured as follows:

<build>
....
<plugin>
 <groupId>io.leonard.maven.plugins</groupId>
  <artifactId>jspc-maven-plugin</artifactId>
  <version>${ENTER_VERSION_HERE}</version>
   <executions>
    <execution>
     <id>jspc</id>
     <goals>
     <goal>compile</goal>
    </goals>
    <configuration>
    </configuration>
  </execution>
 </executions>
</plugin>
...
</build>

It has the following improvements compared to jetty-jspc-maven-plugin:

• Faster: can be configured to run multi-threaded. For a speed comparison read the blog post below.
• More descriptive error messages: Under Maven 3 this plugin shows a clear indication of what caused the error and which file it is in
• Not stop at the first error (depends plugin configuration)

The compiler used by default in this plugin is Apache Jasper 9.0.17.

If the Jasper compiler version needs to be overloaded, the plugin must be configured as follows:

<build>
  ....
  <plugin>
    <groupId>io.leonard.maven.plugins</groupId>
    <artifactId>jspc-maven-plugin</artifactId>
    <version>${ENTER_VERSION_HERE}</version>
    <executions>
      <execution>
        <id>jspc</id>
        <goals>
          <goal>compile</goal>
        </goals>
        <configuration />
      </execution>
    </executions>
    <dependencies>
      <dependency>
        <groupId>org.apache.tomcat</groupId>
        <artifactId>tomcat-jasper</artifactId>
        <version>${ENTER_JASPER_VERSION_HERE}</version>
        <exclusions>
          <exclusion>
            <groupId>org.eclipse.jdt.core.compiler</groupId>
            <artifactId>ecj</artifactId>
          </exclusion>
        </exclusions>
      </dependency>
      <dependency>
        <groupId>org.eclipse.jdt.core.compiler</groupId>
        <artifactId>ecj</artifactId>
        <version>4.6.1</version>
      </dependency>
    </dependencies>
  </plugin>
  ...
</build>

Full documentation of the goal is available at http://leonardehrenfried.github.com/jspc-maven-plugin/compile-mojo.html

Compatibility Matrix

• 4.X version of jspc-maven-plugin : needs Java >= 1.8, Jasper only 10.X
• 3.X version of jspc-maven-plugin : needs Java >= 1.8, Jasper only 9.X
• 2.X version of jspc-maven-plugin : needs Java >= 1.7, Jasper only 8.X
• 1.X version of jspc-maven-plugin : needs Java >= 1.5, Jasper only 6.X, 7.X

Comparison of precompiler plugins

https://tcollignon.github.io/2016/12/04/How-to-compile-JSP-with-Tomcat-and-Maven-faster.html

Use another JSP compiler

By default this plugin use org.apache.jasper.compiler.JDTCompiler (see compilerClass goal option). But if the number of threads is over 2, this compiler has too much synchronization overheas and hence is no very not very performant.

To improve this is possible to user another compilerClass org.apache.jasper.compiler.ParallelJDTCompiler, which reduces synchronization.

Note : With Tomcat 9 the compiler org.apache.jasper.compiler.ParallelJDTCompiler will not work very well. It needs some fix. We advice to use the standard org.apache.jasper.compiler.JDTCompiler instead.

Release process

1. make release
2. make commit-site

Versions

Version
1.1.0 Jun 5, 2011
1.0.0 May 20, 2011