Java serialization will skip this ClassNotFoundException if corresponding data is not being read. ReplicatedSessionContext has two hashtables, one of which stores the sessions for which the server is primary, and the other stores sessions for which the server is secondary.
When a session was invalidated and the request to remove the session came to the secondary server, WebLogic Server passed the ROID to the ReplicatedSessionContext, iterated over the values in the hashtable in order to compare ROID with that value, and then removed the entry.
This caused a Java Level Deadlock. When a node in cluster was restarted, it first tried to synchronize with other cluster members resulting in one server adding the other to the cluster view. Before that cluster node opened the listen port, if a request came in with this cluster node as a secondary, it resulted in an error and from that point on all requests to create secondaries on that cluster node failed.
Now during cluster synchronization, when a node is coming up, it first identifies all the running nodes in a cluster and then sends out a broadcast identifying itself. This ensures that the cluster node coming up is identified by other nodes after it opens a listen port. When a Dynamic Proxy that implemented interfaces declared inside the web application was put into the HttpSession and the session was replicatable, WebLogic Server was not able to load the interface classes on the secondary server.
Dynamic Proxies implementing interfaces stored in the application archive can now be put into HttpSession and be correctly replicated. The cluster members timed out if they did not receive a heartbeat within the default 30 second timeout period.
Heartbeats were sent every 10 seconds and servers waited for 3 periods total wait time was 30 seconds to get a heartbeat before the cluster member was timed out and declared unavailable. For example, during session replication if the secondary server was unavailable at TCP level, the second period was sometimes too long for a very busy web site. Before the secondary was removed from the cluster view, the primary tried to replicate many sessions to the secondary and thus caused the server to hang or made the server slower.
The timeout value IdlePeriodsUntilTimeout is now tunable. In general customers should not tune this value and should leave it at the default 3. BEA WebLogic recommends that you use HIGH caution when changing this value and ensure sufficient testing of your application at peak load scenarios to ensure the expected behavior.
There is no recommendation that fits all scenarios, so testing for load and stress is a must if this value needs to be changed. When a request landed on a server that was neither primary nor secondary, it got the session from the existing secondary by looking it up on the secondary server with the host port information from the session id.
After it successfully got the session from existing secondary it removed the existing session and tried to create a new session. When two such requests occurred at the same time a distributed deadlock could occur since these requests landed on the 'Replication' thread queue and the 'Replication' thread queue had only two threads and there was no other thread available for reading the response.
Code was added to WebLogic Server which fixed the problem so that it will not deadlock. In WebLogic Server 7. This problem is fixed in WebLogic Server 6. Stopping a windows service configured with beasvc. The service was timing out because there was a race condition between the stop and main threads of beasvc. A ConcurrentModificationException was thrown when the monitoring subsystem was trying to read the values of the abbrev table and at the same time the abbrev table was being modified by the rjvm layer.
Cloning the key set before sending the data to the monitoring subsystem so that the HashMap is not modified simultaneously by two threads eliminates the ConcurrentModificationException.
When an application cached a stateless session bean remote stub, and all the servers in the cluster were restarted, the stub was unable to refresh its lists of server nodes where the remote object was available and failover did not succeed.
This was happening because the stub did not have the information needed to re-establish the initial context with the cluster nodes, hence the remote method invocation failed. WebLogic Server code was not propagating the thread environment for the stateless session bean stubs in WebLogic Server 6. The runtime descriptors for the clusterable stateless session beans now have the propagate-environment attribute set to true by default.
The descriptor is now read and the propagateEnvironment is set so the environment is passed on during unmarshalling. This will allow the failover logic to reconnect to the cluster nodes to retrieve the new list of server nodes where the remote object is available and allow for proper failover.
Every time the beasvc service handler was called, the beasvc log added a line indicating that it was called. WebLogic Server running as a service sometimes ran out of memory if it was using a large number of threads. Reducing the reserve stack size used by beasvc. Compared to the WebLogic Server 6. Adding the necessary classes to 6. Now beasvc determines whether the file terminates properly and then reads the file accordingly. Interoperability between 6. The front-end QOS was being propagated to the back-end for the authentication call and it was failing.
The problem was resolved by using "anonymous" when doing the bootstrap authenticate call. Messages printed by beasvc. Code was added to ensure that WebLogic Server does not hold a lock on IORecord during dispatch, thus ensuring that a deadlock will not occur. This was filling up the log files. WebLogic Server now parses the exception message field, traps this specific exception and ensures that it is appended only once.
Installing WebLogic Server as a Windows service immediately after uninstalling it sometimes created wrong registry keys, which could lead to startup problems. When setting the maximum length of an execute queue with the -Dweblogic. This problem was resolved by a code fix to check for the dispatch return value on the caller and use the sendError API to return the response.
This only happened when the file did not end with a new line. A code change was made so beasvc figures out whether the file terminates properly and is then read accordingly. A distributed deadlock occurred due to a failure to maintain session stickiness with the primary server. When a request lands on the server which is neither primary nor secondary, it will try to remove the existing session from the primary as well as the secondary and create a new one on the current server and register a new secondary to it.
In doing so, this server makes a remote request to the primary to remove the session on non-blocking queue, the primary server makes a remove call to the secondary server to remove itself on non-blocking queue.
If there are more than one such requests, there will be no other thread to receive the response on the current server since there will be only two threads available in non-blocking queue and hence there is a distributed deadlock. WebLogic Server now makes no new remote requests while processing requests that come in on a non-blocking queue. This fixes the problem, as it ensures that there will always be a thread available in the non-blocking queue to receive a response.
IndexOutOfBoundsException was being thrown. WebLogic Server has been modified and this exception is no longer thrown under these circumstances. The error was:. These calls add extra header information. The writeObject method writes the class of the object, the signature of the class, the values of the non-transient and non-static fields of the class, and all of its supertypes are written.
This is the reason for the extra header seen in the database. These calls do not cause a problem when customers are using only WebLogic Server to set and get BLOBs, because it uses readObject to convert the bytes into the appropriate object, which needs that extra header information.
However, if the BLOB has been inserted directly into the database by some other vendor or programmer using:. OracleBlob lob. For the data inserted using WebLogic Server, the other programs that would read the bytes directly get the extra header information and fail. A system property has been added which allows WebLogic Server to correctly report header information.
A high value for idleTimeoutSecs, for instance, , in the Deployment Descriptor when multiplied by to convert it into msecs was overflowing into a negative value. This caused the trigger that cleans the passivated beans from the disk to constantly fire, causing high CPU usage.
This prevents any numeric overflow. Code was changed to provide the correct pool statistics in the runtime mbean methods. MBean calls now show the correct data. The Stateful EJB monitoring page did not have the machine name prefixed to its output. The read-only concurrency strategy in 6. This guaranteed exclusive access to the bean, but not to the generated Set for the 1-N relationship.
It was possible for two clients to get access to the same Set. In such a case, when some method was called on the relationship Set, it caused a NullPointerException.
Relevant code changes were made to guarantee exclusive access to the relationship Set to fix the issue. In WebLogic Server 6. The problem was solved by adding a waiterCurrentCount attribute that is incremented when a client starts waiting for a lock and decremented when the lock is acquired or the client times out.
After the transaction was rolled back, it returned "false". The following error messages were thrown:. ResourceException: java.
The problem was that during the outage, the JDBC connection pool attempted to recreate connections, but on failure, those connection attempts were not cleaned up and were depleting Oracle client resources in the LDA. As this byte array could be quite large each instance of OciLob filled up the heap quickly until a garbage collection occurred. Further testing and a modified OciLob moving the class level variables retBArray[] and retCArray[] into the methods caused the variable to be allocated on the stack and reduced the size of the OciLob object instance and thus overall heap usage was reduced.
Code was added to move the global variables retBArray and retCArray to the method level in order to reduce the size of the memory heap usage. WebLogic jDriver may cause the server to crash with Oracle error message ORA when using the long raw type under heavy loads. In previous releases, methods in the weblogic. Pool and weblogic. Note, however, that the methods in these interfaces have been deprecated and are not available in WebLogic Server 7.
If the user code had run an executeQuery call first, without retaining the result set it returned, garbage-collecting could close it immediately, with the underlying DBMS resultset, invalidating and prematurely closing any result set returned by a subsequent getResultSet call. Removing synchronization In weblogic. The leak detection code that sent this warning is obsolete. A code change resolved the problem. In jta. When an EJB transaction created many new entities or otherwise engaged many beans that all use JDBC, WebLogic Server risked running out of Oracle cursors, because in an attempt to avoid a suspected Oracle driver bug, WebLogic Server delayed closing JDBC statements until the end of a transaction, holding the cursors for the statement until then.
This behavior has been changed so that the session need not hold cursors until the transaction ends. New versions of JDBC drivers track the transactional state of connections.
As a result, applications had to go through the tedious process of narrowing down where in their code they had started but not ended a local transaction. The problem was resolved by a code change in the recovery method that prevents special XA connections from being released to the pool twice. This allows customers to dynamically enabled or disable JMS Debugging flags. Under certain circumstances when a server with JMS messages in a pending state was shut down or crashed, pending messages were not recovered when the server was restarted.
In previous WebLogic Server 6. Following a code change, when JMS is idle the connection pings the database every five minutes to keep connection fresh. A receiver stops processing messages when a RedeliveryLimit is configured and the number of times the RedeliveryLimit is reached is greater than the MessagesMaximum setting on the ConnectionFactory.
Receiver receives a message and calls sesssion. Receiver will stop processing messages and the console will show 10 messages pending. Code was added to adjust the window counter when a message is removed from the queue because the RedeliveryLimit had been reached. An idle bridge was logging a message after the maximum idle time setting had been reached. Code was added to suppress the repetitive log message "Bridge X start transferring messages" logged by an idle bridge.
If the bridge is stopped and restarted, or if it encounters an exception and is restarted you will see the "Bridge "bridgename" starts transferring messages" log message, but you will not see the repetitive message logged by an idle bridge. Including JMS in the getTables prefix resolved the problem. JSPs and Servlets. WebLogic Server was sending wlsproxy specific headers even when the request did not originate with a proxy. Code was added to check if the request is coming from a proxy and send the appropriate header.
The HttpSessionBindingListener were not getting fired correctly. In some cases they were invoked twice. Re-implementing the callbacks strictly per the Servlet Specification fixed this problem.
A web application that had a local EJBObject reference in its session, sometimes got an javax. EJBException after it was redeployed. Code was added to catch the exception and log a message. An error message is now logged to indicate serialization failure and the getAttribute of HttpSession, ServletRequest or ServletContext returns null under these circumstances.
There was a problem that was preventing serving custom error pages, if the request was a conditional GET Is-Modified-Since header set for a protected resource. Mixed use of getWriter and getOutputStream from NestedBodyResponse are now allowed, so the exception will only be thrown when appropriate. A protocol exception, excjava.
ProtocolException: Didn't meet stated Content-Length, was occurring when a client cancelled a request while the default fileServlet was sending a file. ByteToCharConverter stopped converting the remaining bytes if it encountered bytes that were not valid in UTF8 for example, 0xc0.
This problem does not occur on JDK 1. The java. IllegalStateException: HttpSession is invalid exception occurs in the servlet container's internal call. If other threads using the same session ID invalidate the session object during processing of ServletRequestImpl. Ignore the IllegalStateException if the session has been invalidated by other threads. When a Serializable Servlet request attribute was added, and then overwritten it with a non-Serializable value, the original value masks the new one.
A code change was made to try to remove the value from a HashMap table of serializable attributes if necessary, when replacing a Serializable value with a non-Serializable one. On a Web server without a default Web application, an HTTP request for a missing resource received a response that included an incorrect date header:.
This header is not valid according to section HttpClusterServlet threw this exception, when KeepAliveEnabled was set to true after a large file download was canceled. Analysis revealed that when a client canceled a file download, the remaining data was left in the inputstream. If the socket was recycled for a subsequent request, the servlet read the remaining data, resulting in the exception. The problem was solved with a code fix to drain the inputstream and if the download is canceled we will read this remaining data.
The problem was resolved by a code change that calls removeAttribute when a null value is passed to the setAttribute. Using ServletOutputStream. A code change resolved the problem by updating the check for boundary conditions when the buffer is full and autoflush is set to false.
After a protocol exception, the server hung while trying to process a new license because of a problem with the ensureContentLength method. The cause of this problem was that the start offset for the new line is wrong. A JSP in a subcontext of the root context was precompiled when deployed as a Web application packaged in a WAR file, but not if it was deployed in exploded format. Jsp used several MBeans with attributes that had the same names, thus when they were displayed, it looked as though there were duplicates, when in fact, there were none.
The display labeling of the MBean attributes was changed for the mbeans that had the same attribute names. They are now distinguishable. When a Serializable ServletContext attribute was added and then overwritten with a non-Serializable value, the original value masked the new value.
When replacing a Serializable value with a non-Serializable one, WebLogic Server now removes the original value from the attributes hashtable. A race condition arose during the computation of a secondary JVMID when more than one frame was used. It appeared that the computation of the secondary JVMID was resetting the member variable value by one thread, causing the race condition.
Following a code change, the computation of the secondary JVMID no longer leads to the race condition. The HTML page served by the CertificateServlet displayed the wrong value for the radio button—it displayed for the radio button, but using the button resulted in a bit certificate.
The WebLogic Server implementation of HttpURLConnection did not check whether keep-alive connection had been timed out on the server side when using POST method, resulting in the error: Connection aborted by peer: socket write error on flush. Checks were added to ensure that the HttpClient is non-null before updating the timestamp. Inappropriate error messages generated by a user breaking a connection have been suppressed.
Customers who do not want to set the locale to C can use the system property. Operations, Administration and Management. A change to support piping of passwords into weblogic. That change locked up the System. The change that locked the System. When a deployment was done where the targets were across two different platforms such as unix and windows , the deployment files were not found. The deployment location was not being localized for the local machine type.
If one deployed a webapp from an administration server running on windows and targeted it to a unix based machine, the location of the deployment was malformed for that platform. Synchronization was removed, as called for in the documentation, eliminating the deadlocks. Thus certain deployments were not being carried out properly. Instead, it returned a message, "It appears that no attributes have been specified for this MBean".
There was no way to "set" the enable attribute in weblogic. The setter signature did not take boolean for these attributes, so the values for these flags could not be changed from the default. Admin tool. The entries in the ExecuteThreads attribute are now displayed as a readable string value. When Domain and Server logfile names were date and time based SimpleDateFormat , the following features were not fully functional:. These type of logs were not being rotated.
The total number of log files were not restricted even when the FileCount was set. There was no code in place to delete the older log files because the FileFilter could not list these files because of their file name patterns.
File rotation has been implemented for these types of file names. After each rotation, WLS now checks to see whether the files exceed the limit, if restricted. It then deletes the older log files. The initial cookie was created through web server one and sent to cluster one. When ithit the application again it went through web server two and instead of being directed to cluster 1 it went to cluster 2 and created a new session. The Apache 2. The problem was resolved with a code change, which sets the status code to when the backend WebLogic Server instance is not available.
Requests with a Transfer-Encoding header set to "chunked" were failing with an IO error. Code was added to support requests using the Transfer-Encoding header set to "chunked". Requests were not retried when the plug-in encountered a broken pipe error on Solaris while sending post data to WebLogic Server.
Under load, Segmentation errors occurred while retrieving plugin Properties for a virtual host. WebLogic Server now does a dns lookup of all the servers in the list and updates the ServerInfo structure if any server has changed from the last time it was checked. Because the plugin did not follow a part of the HTTP1. The behavior of MaxPostSize configuration is now the same with or without a plug-in.
This default setting could not be changed. When using the IIS plug-in, the creation of a large number of new connections through a firewall resulted in an HTTP status , and the connection was closed. When the Apache plug-in encountered a missing page, it was returning a error, rather than the correct error. When using the Apache plug-in to proxy to multiple clusters using MatchExpressions, the PathTrim attribute was failing to trim off the segment of the url used to direct the request.
If a cookie was part of the POST data then plugin would corrupt the post data while extracting the cookie. It ignored the Secondary server. If the Primary server can not be located, but the Secondary server is present then the request will be forwarded to Secondary server rather than being served by another server on the list.
WebLogic Server was throwing an exception from inside the catch block which sometimes caused iPlanet to fail. When Apache was stopped while using a single-thread multi-process module, it would try to stop the timer thread first. This timer thread never existed, thus a core dump occurred. WebLogic Server no longer creates timer threads when Apache is being used with a single-thread multi-process module. Content-type, content-length and transfer-encoding headers are now passed to NSAPI entirely in lower case.
This is because Apache 1. Each process maintains its own serverlist where each server entry is uniquely identified by the JVMID provided by WebLogic Server, and which is updated when a request is successfully processed.
Weblogic Server was not accepting more than one header when the response. This caused a performance problem. A new argument was added to an internal method to determine if a SSL connection needs to be initiated. Apache plugin caused a duplicated http header and body for the response.
There was no problem between the plugin and backend servers, but the Apache server added an additional response. Apache access logs improperly recorded a code rather than a error when application servers were down.
The release 8. Ignoring this certificate. CertificateException: Could not parse certificate: java. When using the release 7. However, after an upgrade to release 8. The error occurred because the 8. Apache The Apache server generated core dumps when using the worker multi-threaded option instead of the prefork only multi-process option. The code has been fixed so that the log file is not set if debugging is turned off.
However, when the property was defined outside a Location tag, then it should have had a global scope. This was resolved by a code change to ensure that the WLExcludePathOrMimeType property is applied only to the requests that match the appropriate Location path for the defined property. Apache The plug-in was logging a confusing "error page is unavailable" log message to the apache error.
ErrorPageTest" failed when attempting a proxy by extension. When the property is defined locally, it does not override the global property but defines a union of the two parameters. When the FilterPriorityLevel was set in the iisforward. A code fix was implemented to ensure that when a virtual host was not defined in the iisforward. A performance problem in the IIS plug-in has been resolved in Service Pack 5 by a code change that causes the plug-in to check whether data equivalent to a specified content length has already been read.
This has been corrected. When the NSAPI plug-in performed name resolution on backend WebLogic Server instances, name resolution used sysGetHostByName, which called getHostByName, which called internal methods that had maximum limits for open file descriptors, causing name resolution sometimes to fail. A fix to cookie parsing and the substitution of JVMIDs to locate primary and secondary servers resolved the problem. A request did not fail over to the next available server in the cluster after receiving HTTP status.
Code now marks the server as failed on getting a HTTP status error, gets the next available server and re-sends the request. All requests now successfully fail over to next available server. This sometimes resulted in the failure of a remote call.
The method used to send IIOP messages was unsynchronized leading to corruption of the underlying data if multiple threads tried to send and receive data at the same time. The method was made synchronized and the product now works correctly in multi-threaded environments.
When a application client code cached the remote stub and invoked a remote method on a SLSB deployed to a cluster, the behavior was that each call refreshed the list which tracked the cluster nodes where the remote object is available. This list was used to failover the calls if any of the node failed with a recoverable exception. The issue here was that failover did not work when the entire cluster was restarted while the application client had cached the stub from a previous invocation.
The retry logic in the failover algorithm was incorrect. This logic originally allowed n-1 number of retries in a cluster with n nodes.
When the entire cluster restarted, the cached stub would have stale list. And the retry logic scanned though the stale list and exhausted all the retry attempts. In the last attempt it would have potentially refreshed the list. Even though the client side stub now had a new copy of the list it did not attempt to failover as it has already reached n-1 attempts limit.
The remote stub cached in the application client now ensures it refreshes the list only when remote method invocation fails on all the nodes in the existing list. Then stub is given one last chance for failover if the list got refreshed.
If this last chance does not succeed the stub will throw an exception to the application otherwise failover will continue to work as advertised transparently. The instructions and description refer to previous version of the build script which used build.
The current version of the build script build. To run build. To understand how the build script works, refer to the comments in build.
When using the. Some of these objects control key functions of the server. Simply unbinding the appropriate objects renders the server unreachable. It was possible to leave the server operational but to have some confidential data transmitted to a foreign object rather than the internal WebLogic Server object.
A protection problem occurred when WebLogic Server was running on an operating system that required case-sensitive filenames and cross-mount directories containing Web applications from an operating system that did not support case-sensitive filenames.
This resulted in some URL patterns in the web. The associated patch adds configuration options to specify that Web application files should be treated as case-insensitive even though the operating system may be running in case-sensitive mode. The constructor method for a flat group used by a custom realm expected a case-sensitive value.
When a case-sensitive value was not found, a NullPointer exception was thrown. A set of enhancements have been added to the WebLogic Server command-line utilities and Administrative ant tasks to eliminate the need for a system administrator to enter a clear-text password.
With these fixes, the WebLogic Server command-line utilities and Administrative ant tasks now create and read user-managed configuration files. Like the boot. A password echo occurred intermittently on the Linux operating system when booting WebLogic Server using the Administrative Console.
No-echo capabilities have been added to resolve the issue. Servlet authentication has been changed so that is sets the AuthenticatedUsername resolved in the ClassCast exception. If host name verification failed but the setExpectedName method was defined, WebLogic Server ignored the host name defined in the method and dropped the connection.
WebLogic Server now performs the host name verification check first. If that verification fails, the connection is rejected. A NullPointerException was being thrown when an Applet attempted to obtain an initial. The basic constraints check for applets was updated, and this eliminated the NullPointerException. WebLogic Server was verifying the hostname of the administration server against the administration certificate in the nodemanager, thus causing an error.
Hostname verification in the nodemanager now only checks against the nodemanager hosts file. When SNMP information was collected using a third-party collector task, the following message was logged:.
A code fix was implemented to resolve these issues and improve the overall performance of WLEC connection pools. WebLogic Tuxedo Connector. Fixed a problem with a race condition between the tBridge spawning threads for each redirect definition and the WTC Service setting an initialized flag to true.
Fixed a problem in which the last character in a double byte character set is being cut in the middle and turning into 'null' on the WLS side after passing through WTC. A memory leak occurred when deploying an Enterprise Application that contained a singleton class with static data. The problem did not occur when the singleton class was deployed as a Web Application. The problem was solved by changing Classloader. This occurred even though the user-defined exception was included in the classloader for the local EJB.
The problem occurred because the socket reader that processed the exception used the system classloader, rather than the application classloader.
Client programs could not use java. Proxy to access proxy objects deployed in WebLogic Server, unless the proxy classes were added to the system classpath.
If an object did not reside in the system classpath, the client would receive a ClassNotFoundException. The resolveProxyClass method was implemented to load interfaces from the application-specific classloader as well as the system classloader. The problem occurred when a managed server was restarted after a failure. Upon restart, the NPE occurred and all server instances in the cluster had to be restarted. The error was related to a timing issue, and was solved with a code fix. Clustered servers could lose sessions when a client switched to a third server in the cluster from the first and second servers, which had been the client's primary and secondary servers.
A process would remove the session from the first two servers, and when the client switched back to the primary server, the primary server looked for the session on the secondary server, instead of properly looking on the third server. A code fix resolved the problem by causing the session to be recreated from session information on the third server, completely removing the session from the primary and secondary servers. It is likely that the remote side declared peer gone on this JVM].
The problem occurred because the plug-in tried to round-robin each tunnel request to the next server. The request did not stick to the same server. The problem was solved with a code fix to ensure state was maintained in the client by setting the jsessionid cookie and sending it back to the plugin. Re-creating secondary. Re-fetching secondary. When the Managed Servers are restarted, the load balancing algorithm was switched to round-robin. Analysis revealed that the replica list was getting updated when a Managed Server went down, but due to a race condition the max weight in RichReplicaList was not reset properly.
A code change to recompute max weight whenever the replica list size changes solved the problem. When a transaction obtained connections to two resource adapters and both adapters used the same resource manager, WebLogic Server cleaned up only one connection. The connections were closed before the committing the transaction. This problem appeared as a javax. The problem occurred because the transaction manager ignored the second connection that used the same resource manager. This was solved with a code fix.
When allocating a new connection, the connector container used the descriptor MBean to obtain configuration information. Because the descriptor MBean resides on the Administration Server, Managed Servers required the Administration Server to be available in order to allocate the new connection.
If the Administration Server was down, the process of allocating new connections would throw a exception:. The container was modified so that it stores configuration information locally after an adapter is deployed.
Managed Servers use this local configuration information, rather than the descriptor MBean, for allocating new connections. This could cause a NullPointerException and connection failure. The code was modified to check the return value for null after calling getMetaData.
If an adapter's implementation of ManagedConnection. WebLogic Server sometimes displayed the following NullPointerException when a domain contained two Administration Servers and you tried to access the servers via the Administration Console:. NullPointerException at weblogic.
The console continues to work. Analysis revealed that MBeans were returning a null displayName. The problem was solved with a code fix. This problem was solved with a code fix. To address this problem, logMuxableSocketResetException was added to the message catalog for reporting this debug message. Exception in thread "main" java. The problem was solved by correcting an error related to reading the classpath from a file. The problem was solved with a code change to Ensure that socket closes outside the muxer are handled gracefully.
SocketException: Connection reset java. SocketException: Connection reset at java. However, these messages do not indicate a defect with the server or application. The code changed so that the above exceptions are displayed only when the server is in debug mode. How to fix unexpected end of program Unexpected end of program and unbalanced parentheses "Unexpected end of program" and "Unbalanced parentheses" Expert Advisor Problem!
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