Tag: java

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Java 7 & 8 install location on Mac OS X

Somewhere between Java 6 and 7 it seems I lost track of where your JDK gets installed on Mac OS X. Prior to Java 7, it seems it was installed to:

/System/Library/Frameworks/JavaVM.framework/Versions

with symlinks pointing to the exact locations.

I was just setting up a new Eclipse install and was looking for where my 8 was installed – it was clearly installed as ‘java -version’ was telling me I was running 8, but it was no longer in the above location.

/usr/libexec/java_home (which I’ve mentioned before here) was telling me the following:

/Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/Contents/Home

Hmm, so there you go. Looking in /Library/Java/JavaVirtualMachines/ I had multiple versions of 7 and 8. If you need to point Eclipse to a JRE location for your installed JREs, then from 7 onwards I think this is what you need.

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SSLProtocolException in SE7 & SE8: “handshake alert: unrecognized_name”

Caused by: com.sun.jersey.api.client.ClientHandlerException: 
javax.net.ssl.SSLProtocolException: handshake alert:  
unrecognized_name at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle (URLConnectionClientHandler.java:151) 
at com.sun.jersey.api.client.Client.handle(Client.java:648) 
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:680) 
at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) 
at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:5 68)

This exception is from an SSL check in SE7 and above that checks that your SSL certificate matches your domain name. For development, if you’re using a self-signed SSL certificate for testing which does not match your domain name, you can turn off the check and ignore the error with:

-Djsse.enableSNIExtension=false
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EE6 and EE7 Maven deps for JBoss AS7 and WildFly8

For EE7 on WildFly8.x, use:

Full profile:

        <dependency>
            <groupId>org.jboss.spec</groupId>
            <artifactId>jboss-javaee-7.0</artifactId>
            <version>1.0.0.Final</version>
            <type>pom</type>
            <scope>provided</scope>
        </dependency>

Web profile:

        <dependency>
            <groupId>org.jboss.spec</groupId>
            <artifactId>jboss-javaee-web-7.0</artifactId>
            <version>1.0.0.Final</version>
            <type>pom</type>
            <scope>provided</scope>            
        </dependency

For EE6 on JBoss AS7.x, use:

        <dependency>
            <groupId>org.jboss.spec</groupId>
            <artifactId>jboss-javaee-6.0</artifactId>
            <version>1.0.0.Final</version>
            <type>pom</type>
            <scope>provided</scope>
        </dependency>

Info from JBoss’s EE spec Git repo here and referenced from this question here.

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