Tried to load the admin web page for an EqualLogic PS 6100 series array and got

attempted to open sandboxed jar

The fix requires editing the java.security file and removing MD5 from the following line

jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024, DSA keySize < 1024

Open the Java control panel to find the path to the Java version your browser is using.

http://tech.lazyllama.com/2017/05/19/workaround-for-java-8u131-attempted-to-open-sandboxed-jar-xxxxx-as-a-trusted-library-error/

On this version of Java => C:\Program Files (x86)\Java\jre1.8.0_441\lib\security

Important: I also had to comment out a reference to 2019 on the jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024, DSA keySize < 1024 lines 

and comment out ...certpath.disabled...  

# jdk.certpath.disabledAlgorithms=MD2, MD5, SHA1 jdkCA & usage TLSServer, \
#    RSA keySize < 1024, DSA keySize < 1024, EC keySize < 224, \
#    include jdk.disabled.namedCurves, \
#    SHA1 usage SignedJAR & denyAfter 2019-01-01

 When logging in to the PS6100 I also had to uncheck the encryption option at the PS 6100 login prompt. Or it would say server communications failed