Exception: Can't connect to Browsermob-Proxy

[PRONOjit]

Hi,

I have the following:

```

from browsermobproxy import Server

server = Server("/Users/username/Desktop/browsermob-proxy/bin/browsermob-proxy")

server.start()

proxy = server.create_proxy() 

```

I'm getting the error on server.start().

```Exception: Can't connect to Browsermob-Proxy```

Further on terminal, if I do ```/Users/username/Desktop/browsermob-proxy/bin/browsermob-proxy -port 9090``` I get the following error:

```

Exception in thread "main" java.lang.UnsupportedClassVersionError: net/lightbody/bmp/proxy/Main : Unsupported major.minor version 51.0

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)

at java.lang.ClassLoader.defineClass(ClassLoader.java:621)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

```

It seems to be some issue with the version number, but not sure what exactly it is. Thanks. 

[Dakota Smith]

I believe that error occurs when you need to update the version of Java your system is running.

http://stackoverflow.com/questions/10382929/how-to-fix-unsupported-major-minor-version-51-0-error

On Fri, Oct 2, 2015 at 5:20 AM, PRONOjit <pronoj...@gmail.com> wrote:

Hi,

I'm getting the same error on server.start()

```Exception: Can't connect to Browsermob-Proxy```

I also have the following:

```

from browsermobproxy import Server

server = Server("/Users/username/Desktop/browsermob-proxy/bin/browsermob-proxy")

server.start()

proxy = server.create_proxy() 

```

Further on terminal, if I do ```/Users/username/Desktop/browsermob-proxy/bin/browsermob-proxy -port 9090``` I get the following error:

```

Exception in thread "main" java.lang.UnsupportedClassVersionError: net/lightbody/bmp/proxy/Main : Unsupported major.minor version 51.0

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)

at java.lang.ClassLoader.defineClass(ClassLoader.java:621)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

```

It seems to be some issue with the version number, but not sure what exactly it is. Thanks. 

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[PRONOjit]

Hi Dakota, 

Thanks for the response. As per the thread the JRE and JDK need to be the same version. So I upgraded to JDK8 and when I check on terminal the versions of JRE and JDK I get both same version as below:

$ java -version

java version "1.8.0_60"

Java(TM) SE Runtime Environment (build 1.8.0_60-b27)

Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

$ javac -version

javac 1.8.0_60

But I still get the sam error for browsermobproxy. What seems to be the issue now?

[Dakota Smith]

Have you set your $JAVA_HOME?

http://stackoverflow.com/questions/1348842/what-should-i-set-java-home-to-on-osx

In my .bash_profile, I added the line which is called out in the accepted answer

export JAVA_HOME=$(/usr/libexec/java_home)

After I did that, and restarted my terminal, I was able to launch BMP. 

Hope this works for you!

[PRONOjit]

Yes, that did the trick for me too! Thanks a lot Dakota, appreciate it. 

[PRONOjit]

Hi Dakota, 

Continuing on my quest, the HAR file I get using selenium and browsermobproxy (using the intro code here: https://browsermob-proxy-py.readthedocs.org/en/latest/) is not the same as the one I am getting when I save as a HAR file manually from developer tools in chrome. 

As in the attached picture, when I right click and do 'save ALL as HAR' on the network pane I get all the data for the files mentioned in a single HAR file (i am particularly interested in the xml file details), but thats not the case with selenium and browsermobproxy. Am I missing something here?

Thanks.