PEM Converter Maven Plugin

A Maven plugin that converts OpenSSL PEM-formatted root certificate files to a format more easily and efficiently readable in a Java program.

1. In your Maven build:

Add this to the <build><plugins>...</plugins></build> section of your "pom.xml":

<plugin>
    <groupId>com.dropbox.maven</groupId>
    <artifactId>pem-converter-maven-plugin</artifactId>
    <version>1.0</version>
    <executions>
        <execution>
            <configuration>
                <input>whatever.pem</input>
                <output>${project.build.directory}/generated-resources/certs/whatever.raw</output>
            </configuration>
            <goals>
                <goal>convert</goal>
            </goals>
        </execution>
    </executions>
</plugin>

Add this to the <build><resources>...</resources></build> section of your "pom.xml":

<resource>
    <directory>${project.build.directory}/generated-resources/certs</directory>
</resource>

2. In your program:

Use getResourceAsStream to read the generated resource file:

InputStream in = MyClass.class.getResourceAsStream("whatever.raw");
if (in == null) {
    throw new AssertionError("Couldn't find resource \"whatever.raw\");
}

Then load the certificates from an InputStream into a KeyStore. Example code you can copy: RawLoader.java

Command-Line Script

There's also a command-line script that will run the conversion.

1. mvn compile
2. ./run