java 6 applet blocked by java 7

Question

I have an applet that was coded back in 2011 with java 6 requirements. Due to the recent security updates, the applet is blocked by java and displays a grey screen.

I have updated the manifest file to include permissions, codebase, and Application-Library-Allowable-Codebase attributes. I have also updated libraries' manifest files and signed them with a certificate.

Lowering the Java security setting to medium and adding the site to 'exception site list' didn't help.

I have attached the log from java console. Some of the entries indicate that codebase and other attributes are missing from some libraries but that is not the case.

Java Plug-in 10.67.2.01
Using JRE version 1.7.0_67-b01 Java HotSpot(TM) Client VM
----------------------------------------------------
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
l:   dump classloader list
m:   print memory usage
o:   trigger logging
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
x:   clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
cache: Initialize resource manager: com.sun.deploy.cache.ResourceProviderImpl@e8f27e
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@19cfefb
security: Expected Main URL: http://***.***.***.***:81/Phase1.jar
basic: Plugin2ClassLoader.addURL parent called for http://***.***.***.***:81/Phase1.jar
security: Blacklist revocation check is enabled
security: blacklist: created: NEED_LOAD, lastModified: 1409153789769
security: blacklist: hasBeenModifiedSince 1409155180119 (we have 1409153789769)
security: Trusted libraries list check is enabled
network: Cache entry found [url: http://***.***.***.***:81/Phase1.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/Phase1.jar
cache: Resource http://***.***.***.***:81/Phase1.jar has expired.
network: Connecting http://***.***.***.***:81/Phase1.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/Phase1.jar : 304
network: Encoding for http://***.***.***.***:81/Phase1.jar : null
network: Disconnect connection to http://***.***.***.***:81/Phase1.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@5131c1ee: 1
cache:  Read manifest for http://***.***.***.***:81/Phase1.jar: read=332 full=60092
cache: Loading full manifest for http://***.***.***.***:81/Phase1.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@5131c1ee: 2
cache: Reading Signers from 1043 http://***.***.***.***:81/Phase1.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\24\48a1ac18-317f20b3.idx
cache: Done readSigners(http://***.***.***.***:81/Phase1.jar)
security: Trust for: http://***.***.***.***:81/Phase1.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Loading Deployment certificates from C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\security\trusted.certs
security: Loaded Deployment certificates from C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\security\trusted.certs
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Internet Explorer TrustedPublisher certificate store
security: Loaded certificates from Internet Explorer TrustedPublisher certificate store
security: Loading certificates from Internet Explorer DISALLOWED certificate store
security: Loaded certificates from Internet Explorer DISALLOWED certificate store
security: Validate the certificate chain using CertPath API
security: Loading certificates from Internet Explorer ROOT certificate store
security: Loaded certificates from Internet Explorer ROOT certificate store
security: Loading Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loaded Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Obtain certificate collection in Root CA certificate store
security: Obtain certificate collection in Root CA certificate store
security: Obtain certificate collection in Root CA certificate store
security: Obtain certificate collection in Root CA certificate store
security: Loaded blacklisted.certs file: C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\security\blacklisted.certs
security: SHA-256Certificate finger print: EDA1BA32F297A9B90F294AE662E9FF31DC9C9DE88E1CB439C1CDF667EF15D53D
security: Checking if certificate is in Internet Explorer DISALLOWED certificate store
security: The OCSP support is enabled
security: The CRL support is enabled
security: Saving certificates in Deployment session certificate store
security: Saved certificates in Deployment session certificate store
network: Created version ID: 1.8.0.11
network: Created version ID: 1.8.0.11
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@5131c1ee: 3
security: Decision hash not matching ai: Appinfo:
type = 2
title = main.MainWindow
vendor = null
from = http://***.***.***.***:81/Phase1.jar
security = 0
lapURL = http://***.***.***.***:81//main/MainApplet
appArgs = ##docbase:http://***.***.***.***:81/##Parameters:{height=716, __applet_relaunched=false, java_arguments=, width=1203, launchjnlp=, archive=Phase1.jar, code=main/MainApplet.class, embedded=, codebase=http://***.***.***.***:81/}
network: Created version ID: 1.8.0.11
network: Created version ID: 1.8.0.11
Missing Application-Name manifest attribute for: http://***.***.***.***:81/Phase1.jar
basic: Dialog type is not candidate for embedding
cache: Clean up the reference queue: http://***.***.***.***:81/Phase1.jar
cache: deregisterReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@5131c1ee: 2
security: User has granted the privileges to the code for this session only
security: Saving certificates in Deployment session certificate store
security: Saved certificates in Deployment session certificate store
security: SHA-256Certificate finger print: EDA1BA32F297A9B90F294AE662E9FF31DC9C9DE88E1CB439C1CDF667EF15D53D
security: Decision time stored for ai: Appinfo:
type = 2
title = main.MainWindow
vendor = null
from = http://***.***.***.***:81/Phase1.jar
security = 0
lapURL = http://***.***.***.***:81//main/MainApplet
appArgs = ##docbase:http://***.***.***.***:81/##Parameters:{height=716, __applet_relaunched=false, java_arguments=, width=1203, launchjnlp=, archive=Phase1.jar, code=main/MainApplet.class, embedded=, codebase=http://***.***.***.***:81/}
security: Grant socket perm for http://***.***.***.***:81/Phase1.jar : java.security.Permissions@13c3ba2 (
 ("java.net.SocketPermission" "***.***.***.***" "connect,accept,resolve")
)

security: Validate the certificate chain using CertPath API
basic: Plugin2ClassLoader.getPermissions CeilingPolicy allPerms
security: Validate the certificate chain using CertPath API
security: SSV validation:
    running: 1.7.0_67
    requested: null
    range: null
    javaVersionParam: null
    Rule Set version: null
network: Created version ID: 1.7.0.67
network: Created version ID: 1.7.0.67
security: continue with running version
network: Created version ID: 1.7.0.67
network: Created version ID: 1.7
network: Created version ID: 2.2.67
basic: Applet loaded.
basic: Applet resized and added to parent container
basic: PERF: AppletExecutionRunnable - applet.init() BEGIN ; jvmLaunch dt 275095 us, pluginInit dt 7667257 us, TotalTime: 7942352 us
security: blacklist: hasBeenModifiedSince 1409153798241 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/lucene-1.4.3.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/lucene-1.4.3.jar
cache: Resource http://***.***.***.***:81/lib/lucene-1.4.3.jar has expired.
network: Connecting http://***.***.***.***:81/lib/lucene-1.4.3.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/lucene-1.4.3.jar : 304
network: Encoding for http://***.***.***.***:81/lib/lucene-1.4.3.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/lucene-1.4.3.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@9ecd0193: 1
cache:  Read manifest for http://***.***.***.***:81/lib/lucene-1.4.3.jar: read=85 full=7365
cache: Loading full manifest for http://***.***.***.***:81/lib/lucene-1.4.3.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@9ecd0193: 2
cache: Reading Signers from 1005 http://***.***.***.***:81/lib/lucene-1.4.3.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\16\51720d90-6d25acb9.idx
cache: Done readSigners(http://***.***.***.***:81/lib/lucene-1.4.3.jar)
security: Trust for: http://***.***.***.***:81/lib/lucene-1.4.3.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/lucene-1.4.3.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/lucene-1.4.3.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: SHA-256Certificate finger print: 82C0F2C60A83887EA2D2E3190E9EC0F5F2C984F27C4540B95C6FFBBC8C18165A
security: Checking if certificate is in Internet Explorer DISALLOWED certificate store
security: The OCSP support is enabled
security: The CRL support is enabled
security: Saving certificates in Deployment session certificate store
security: Saved certificates in Deployment session certificate store
network: Created version ID: 1.8.0.11
network: Created version ID: 1.8.0.11
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@5131c1ee: 3
security: SHA-256Certificate finger print: 82C0F2C60A83887EA2D2E3190E9EC0F5F2C984F27C4540B95C6FFBBC8C18165A
security: Decision cert hash not matching
network: Created version ID: 1.8.0.11
network: Created version ID: 1.8.0.11
Missing Application-Name manifest attribute for: http://***.***.***.***:81/lib/lucene-1.4.3.jar
basic: Dialog type is not candidate for embedding
security: User has granted the privileges to the code for this session only
security: Saving certificates in Deployment session certificate store
security: Saved certificates in Deployment session certificate store
security: SHA-256Certificate finger print: 82C0F2C60A83887EA2D2E3190E9EC0F5F2C984F27C4540B95C6FFBBC8C18165A
security: Decision time stored for ai: Appinfo:
type = 2
title = null
vendor = null
from = http://***.***.***.***:81/lib/lucene-1.4.3.jar
security = 0
lapURL = http://***.***.***.***:81//main/MainApplet
appArgs = ##docbase:http://***.***.***.***:81/##Parameters:{height=716, __applet_relaunched=false, java_arguments=, width=1203, launchjnlp=, archive=Phase1.jar, code=main/MainApplet.class, embedded=, codebase=http://***.***.***.***:81/}
security: blacklist: hasBeenModifiedSince 1409153802972 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/prefuse-extras.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/prefuse-extras.jar
cache: Resource http://***.***.***.***:81/lib/prefuse-extras.jar has expired.
network: Connecting http://***.***.***.***:81/lib/prefuse-extras.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/prefuse-extras.jar : 304
network: Encoding for http://***.***.***.***:81/lib/prefuse-extras.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/prefuse-extras.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@91fe9bce: 1
cache:  Read manifest for http://***.***.***.***:81/lib/prefuse-extras.jar: read=67 full=2010
cache: Loading full manifest for http://***.***.***.***:81/lib/prefuse-extras.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@91fe9bce: 2
cache: Reading Signers from 1005 http://***.***.***.***:81/lib/prefuse-extras.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\40\613739e8-5821d88d.idx
cache: Done readSigners(http://***.***.***.***:81/lib/prefuse-extras.jar)
security: Trust for: http://***.***.***.***:81/lib/prefuse-extras.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/prefuse-extras.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/prefuse-extras.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153804229 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/prefuse.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/prefuse.jar
cache: Resource http://***.***.***.***:81/lib/prefuse.jar has expired.
network: Connecting http://***.***.***.***:81/lib/prefuse.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/prefuse.jar : 304
network: Encoding for http://***.***.***.***:81/lib/prefuse.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/prefuse.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@1d10947c: 1
cache:  Read manifest for http://***.***.***.***:81/lib/prefuse.jar: read=67 full=9365
cache: Loading full manifest for http://***.***.***.***:81/lib/prefuse.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@1d10947c: 2
cache: Reading Signers from 1005 http://***.***.***.***:81/lib/prefuse.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\25\3a0538d9-2b9d5d4f.idx
cache: Done readSigners(http://***.***.***.***:81/lib/prefuse.jar)
security: Trust for: http://***.***.***.***:81/lib/prefuse.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/prefuse.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/prefuse.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153806325 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/colt.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/colt.jar
cache: Resource http://***.***.***.***:81/lib/colt.jar has expired.
network: Connecting http://***.***.***.***:81/lib/colt.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/colt.jar : 304
network: Encoding for http://***.***.***.***:81/lib/colt.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/colt.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@3479dd36: 1
cache:  Read manifest for http://***.***.***.***:81/lib/colt.jar: read=319 full=29489
cache: Loading full manifest for http://***.***.***.***:81/lib/colt.jarcache: Clean up the reference queue: http://***.***.***.***:81/Phase1.jar
cache: deregisterReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@5131c1ee: 2
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@3479dd36: 2
cache: Reading Signers from 1005 http://***.***.***.***:81/lib/colt.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\36\4cb69924-4f47653b.idx
cache: Done readSigners(http://***.***.***.***:81/lib/colt.jar)
security: Trust for: http://***.***.***.***:81/lib/colt.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/colt.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/colt.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153806566 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/AbsoluteLayout.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/AbsoluteLayout.jar
cache: Resource http://***.***.***.***:81/lib/AbsoluteLayout.jar has expired.
network: Connecting http://***.***.***.***:81/lib/AbsoluteLayout.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/AbsoluteLayout.jar : 304
network: Encoding for http://***.***.***.***:81/lib/AbsoluteLayout.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/AbsoluteLayout.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@3e830523: 1
cache:  Read manifest for http://***.***.***.***:81/lib/AbsoluteLayout.jar: read=253 full=253
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@3e830523: 2
cache: Reading Signers from 1005 http://***.***.***.***:81/lib/AbsoluteLayout.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\18\3fd1b552-228058ea.idx
cache: Done readSigners(http://***.***.***.***:81/lib/AbsoluteLayout.jar)
security: Trust for: http://***.***.***.***:81/lib/AbsoluteLayout.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/AbsoluteLayout.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/AbsoluteLayout.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153807190 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/imap.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/imap.jar
cache: Resource http://***.***.***.***:81/lib/imap.jar has expired.
network: Connecting http://***.***.***.***:81/lib/imap.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/imap.jar : 304
network: Encoding for http://***.***.***.***:81/lib/imap.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/imap.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@26f6c715: 1
cache:  Read manifest for http://***.***.***.***:81/lib/imap.jar: read=206 full=2349
cache: Loading full manifest for http://***.***.***.***:81/lib/imap.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@26f6c715: 2
cache: Reading Signers from 6368 http://***.***.***.***:81/lib/imap.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\23\4fc3f817-68a5d2cf.idx
cache: Done readSigners(http://***.***.***.***:81/lib/imap.jar)
security: Trust for: http://***.***.***.***:81/lib/imap.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/imap.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/imap.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/imap.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/imap.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153808155 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/mail.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/mail.jar
cache: Resource http://***.***.***.***:81/lib/mail.jar has expired.
network: Connecting http://***.***.***.***:81/lib/mail.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/mail.jar : 304
network: Encoding for http://***.***.***.***:81/lib/mail.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/mail.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@591f1a79: 1
cache:  Read manifest for http://***.***.***.***:81/lib/mail.jar: read=230 full=7166
cache: Loading full manifest for http://***.***.***.***:81/lib/mail.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@591f1a79: 2
cache: Reading Signers from 13516 http://***.***.***.***:81/lib/mail.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\48\49bce370-4169465e.idx
cache: Done readSigners(http://***.***.***.***:81/lib/mail.jar)
security: Trust for: http://***.***.***.***:81/lib/mail.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/mail.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/mail.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/mail.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/mail.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153809079 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/mailapi.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/mailapi.jar
cache: Resource http://***.***.***.***:81/lib/mailapi.jar has expired.
network: Connecting http://***.***.***.***:81/lib/mailapi.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/mailapi.jar : 304
network: Encoding for http://***.***.***.***:81/lib/mailapi.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/mailapi.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@bef7f57b: 1
cache:  Read manifest for http://***.***.***.***:81/lib/mailapi.jar: read=230 full=4952
cache: Loading full manifest for http://***.***.***.***:81/lib/mailapi.jarcache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@bef7f57b: 2
cache: Reading Signers from 9969 http://***.***.***.***:81/lib/mailapi.jar | C:\Users\*\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\36\403bf524-15b10719.idx
cache: Done readSigners(http://***.***.***.***:81/lib/mailapi.jar)
security: Trust for: http://***.***.***.***:81/lib/mailapi.jar has ended: Wed Dec 31 19:00:00 EST 1969
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/mailapi.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/mailapi.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: Missing Codebase manifest attribute for: http://***.***.***.***:81/lib/mailapi.jar
security: Missing Application-Library-Allowable-Codebase manifest attribute for: http://***.***.***.***:81/lib/mailapi.jar
security: Validate the certificate chain using CertPath API
security: The certificate has expired, need to check timestamping info
security: No timestamping info available
security: blacklist: hasBeenModifiedSince 1409153809518 (we have 1409153789769)
network: Cache entry found [url: http://***.***.***.***:81/lib/pop3.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://***.***.***.***:81/lib/pop3.jar
cache: Resource http://***.***.***.***:81/lib/pop3.jar has expired.
network: Connecting http://***.***.***.***:81/lib/pop3.jar with proxy=HTTP @ web-proxy.atl.hp.com/16.114.29.150:8080
network: ResponseCode for http://***.***.***.***:81/lib/pop3.jar : 304
network: Encoding for http://***.***.***.***:81/lib/pop3.jar : null
network: Disconnect connection to http://***.***.***.***:81/lib/pop3.jar
cache: registerReference: com.sun.deploy.cache.MemoryCache$CachedResourceReference@7e288f44: 1
cache:  Read manifest for http://***.***.***.***:81/lib/pop3.jar: read=507 full=507
basic: Applet initialized
basic: Starting applet
basic: completed perf rollup
basic: Applet made visible
basic: Applet started
basic: Told clients applet is started

Answer 1

I answer that here Warning on Permissions attribute when running an applet with JRE 7u45

run the java.policy tool to edit the policy file and it works. Find the right jre your applet is running.

 policytool

And how it works http://docs.oracle.com/javase/tutorial/security/tour1/wstep2.html

Edit the java.policy file to grant your applet socket-permissions . You can grant all codBase leaving blank or putting your address like http://***.***.***.***:81/lib/