Framework – Laurent Hinoul

How to fix Unirest General SSLEngine problem

29/02/2016 • 0 Comments

I tried to post data to a rest service using Unirest (unirest.io). But when I tried to post to an HTTPS url, I got the following error:

javax.net.ssl.SSLHandshakeException: General SSLEngine problem
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

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javax.net.ssl.SSLHandshakeException: General SSLEngine problem

PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

To fix this, you could use the following code:

private CloseableHttpAsyncClient createSSLClient() {
		TrustStrategy acceptingTrustStrategy = new TrustStrategy() {

			@Override
			public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
				return true;
			}
		};

		SSLContext sslContext = null;
		try {
			sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
		} catch (Exception e) {
			LOGGER.error("Could not create SSLContext");
		}

		return HttpAsyncClients.custom()
			.setHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER)
			.setSSLContext(sslContext).build();
	}

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private CloseableHttpAsyncClient createSSLClient() {

TrustStrategy acceptingTrustStrategy = new TrustStrategy() {

@Override

public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {

return true;

}

};

SSLContext sslContext = null;

try {

sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();

} catch (Exception e) {

LOGGER.error("Could not create SSLContext");

}

return HttpAsyncClients.custom()

.setHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER)

.setSSLContext(sslContext).build();

}

Then, you need to execute the code below before useing Unirest itself:

Unirest.setAsyncHttpClient(createSSLClient());

1	Unirest.setAsyncHttpClient(createSSLClient());

Hopefully this works for you too. Enjoy

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Java, Maven, Open Source, Vertx, XML

How to create a vertx fat-jar with maven

28/01/2016 • 0 Comments

If you use Vertx, It could be helpful to create a jar or war where Vertx is included. If you use maven. You can add the following code in your pom.xml:

<build>
	<plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-shade-plugin</artifactId>
			<version>2.4.1</version>
			<executions>
				<execution>
					<phase>package</phase>
					<goals>
						<goal>shade</goal>
					</goals>
					<configuration>
						<transformers>
							<transformer
									implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
								<manifestEntries>
									<Main-Class>io.vertx.core.Starter</Main-Class>
									<Main-Verticle>com.laurenthinoul....ApplicationMainClass</Main-Verticle>
								</manifestEntries>
							</transformer>
						</transformers>
						<artifactSet />
						<outputFile>${project.build.directory}/${project.artifactId}-${project.version}-fat.jar</outputFile>
					</configuration>
				</execution>
			</executions>
		</plugin>
	</plugins>
</build>

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<build>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-shade-plugin</artifactId>

<phase>package</phase>

<goals>

<goal>shade</goal>

</goals>

<transformer

implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">

<Main-Class>io.vertx.core.Starter</Main-Class>

<Main-Verticle>com.laurenthinoul....ApplicationMainClass</Main-Verticle>

</manifestEntries>

</transformer>

</transformers>

<outputFile>${project.build.directory}/${project.artifactId}-${project.version}-fat.jar</outputFile>

</configuration>

</execution>

</executions>

</plugin>

</plugins>

</build>

If you integrated Spring, you need to add extra transformers. You can use the following code in your pom.xml for that:

<build>
	<plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-shade-plugin</artifactId>
			<version>2.4.1</version>
			<executions>
				<execution>
					<phase>package</phase>
					<goals>
						<goal>shade</goal>
					</goals>
					<configuration>
						<transformers>
							<transformer
									implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
								<manifestEntries>
									<Main-Class>io.vertx.core.Starter</Main-Class>
									<Main-Verticle>com.laurenthinoul....ApplicationMainClass</Main-Verticle>
								</manifestEntries>
							</transformer>
							<transformer
									implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
								<resource>META-INF/spring.handlers</resource>
							</transformer>
							<transformer
									implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
								<resource>META-INF/spring.schemas</resource>
							</transformer>
							<transformer
									implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
								<resource>META-INF/spring.tooling</resource>
							</transformer>
						</transformers>
						<artifactSet />
						<outputFile>${project.build.directory}/${project.artifactId}-${project.version}-fat.jar</outputFile>
					</configuration>
				</execution>
			</executions>
		</plugin>
	</plugins>
</build>

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<build>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-shade-plugin</artifactId>

<phase>package</phase>

<goals>

<goal>shade</goal>

</goals>

<transformer

implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">

<Main-Class>io.vertx.core.Starter</Main-Class>

<Main-Verticle>com.laurenthinoul....ApplicationMainClass</Main-Verticle>

</manifestEntries>

</transformer>

<transformer

implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">

<resource>META-INF/spring.handlers</resource>

</transformer>

<transformer

implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">

<resource>META-INF/spring.schemas</resource>

</transformer>

<transformer

implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">

<resource>META-INF/spring.tooling</resource>

</transformer>

</transformers>

<outputFile>${project.build.directory}/${project.artifactId}-${project.version}-fat.jar</outputFile>

</configuration>

</execution>

</executions>

</plugin>

</plugins>

</build>

Don’t forget to change ‘com.laurenthinoul….ApplicationMainClass’ to…

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Framework, Web

How to use play framework behind a proxy

06/10/2015 • 1 Comment

In this post, I’ll show you how to configure the play’s framework activator to work behind a proxy.

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Framework

How to solve DbProviderFactories section can only appear once per config file error

25/06/2015 • 8 Comments

Once upon a time, there was a program called ‘Agresso’. It uses the .NET framework. When I started the program and wanted to log in. I got the following error message: DbProviderFactories section can only appear once per config file error. -.-‘ After some research, I discovered it was a bug in the .NET framework. (not surprising me :p). Now,…

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Framework, Node.js, Web

How to enable bower to work behind a proxy

07/04/2015 • 1 Comment

Hi there, in this post I will show you how to configure bower so it can download files behind a proxy.

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Framework, Java, Maven

How to fix Fatal error compiling: invalid target release: 1.8

01/01/2015 • 2 Comments

This tutorial is writen for mac users, on windows I didn’t had this error. When I tried to do a mvn compile. I got the following error:

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Database, Hibernate, Java

How to fix java.io.EOFException: Can not read response from server for MySQL

08/10/2014 • 0 Comments

Hi, I made a java program where much database queries are processed in MySQL. After some time running, I got an error message:

How to add a record color to a listview in SugarCRM

03/10/2014 • 4 Comments

Hi! In this post I will show you how to add a color to a listview in SugarCRM.

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Framework, Node.js, PC

How to fix ENOENT error when installing modules with NPM

02/08/2014 • 0 Comments

When I tried to install a module with NPM, I got an error like ‘Error: ENOENT, stat ‘C:\Users\username\AppData\Roaming\npm’. To fix this, create the ‘npm’ directory manually. It worked like a charm for me. Hopefully, it works for you too!

How to add dummy data to your java object

27/05/2014 • 0 Comments

When you are unit testing, it is sometimes necessary to supplement an object with dummy data. Unfortunately, to fill a large object manually, it crawls a lot of time and work. Fortunately, there is a tool that saves us the time and work!

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