MobileFirst 7.0 Server stuck "Deploying" when trying to deploy a .wlapp file to Tomcat

While after finishing installing and configuring successfully the MobileFirst 7.0 Server, I'm getting the issue that the MF server is stucking in "Deploying" when I try to Deploy Application => Selecting a MF studio /bin folder .wlapp file.

And here are some log messages from Tomcat log files:

10614  WorklightManagementPU-mysql  INFO   [pool-2-thread-1] openjpa.Runtime - Though you are using optimistic transactions, OpenJPA is now beginning a datastore transaction because you have requested a lock on some data.
10646  WorklightManagementPU-mysql  INFO   [pool-2-thread-1] openjpa.Runtime - Though you are using optimistic transactions, OpenJPA is now beginning a datastore transaction because you have requested a lock on some data.
10682  WorklightManagementPU-mysql  INFO   [pool-2-thread-1] openjpa.Runtime - Though you are using optimistic transactions, OpenJPA is now beginning a datastore transaction because you have requested a lock on some data.

Jun 03, 2015 2:03:32 PM com.ibm.worklight.admin.actions.ApplicationDeploymentTransaction beforeAll
SEVERE: Failed to generate download links to transfer data during the deployment of applications. See the next exception in the log. Switch to direct data transfer via JMX. This is not fatal but it requires larger memory than the data transfer with download links.
Jun 03, 2015 2:03:32 PM com.ibm.worklight.admin.actions.BaseTransaction internalRun
SEVERE: BaseTransaction.internalRun() Exception
<openjpa-1.2.2-r422266:898935 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: Object "com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-1" is not managed by this context.
FailedObject: com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-1
    at org.apache.openjpa.persistence.EntityManagerImpl.processArgument(EntityManagerImpl.java:1216)
    at org.apache.openjpa.kernel.BrokerImpl.processArgument(BrokerImpl.java:2149)
    at org.apache.openjpa.kernel.BrokerImpl.gatherCascadeRefresh(BrokerImpl.java:2816)
    at org.apache.openjpa.kernel.BrokerImpl.refresh(BrokerImpl.java:2793)
    at org.apache.openjpa.kernel.DelegatingBroker.refresh(DelegatingBroker.java:1078)
    at org.apache.openjpa.persistence.EntityManagerImpl.refresh(EntityManagerImpl.java:688)
    at com.ibm.worklight.admin.actions.BaseTransaction.setNewProjectTransactionID(BaseTransaction.java:643)
    at com.ibm.worklight.admin.actions.BaseTransaction.internalRun(BaseTransaction.java:336)
    at com.ibm.worklight.admin.actions.BaseTransaction$1.run(BaseTransaction.java:235)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

Jun 03, 2015 2:03:32 PM com.ibm.worklight.admin.actions.BaseTransaction$1 run
SEVERE: internalRun() Exception
<openjpa-1.2.2-r422266:898935 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: Object "com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-1" is not managed by this context.
FailedObject: com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-com.ibm.worklight.dataaccess.jpa.entity.ProjectEntity-1
    at org.apache.openjpa.persistence.EntityManagerImpl.processArgument(EntityManagerImpl.java:1216)
    at org.apache.openjpa.kernel.BrokerImpl.processArgument(BrokerImpl.java:2149)
    at org.apache.openjpa.kernel.BrokerImpl.gatherCascadeRefresh(BrokerImpl.java:2816)
    at org.apache.openjpa.kernel.BrokerImpl.refresh(BrokerImpl.java:2793)
    at org.apache.openjpa.kernel.DelegatingBroker.refresh(DelegatingBroker.java:1078)
    at org.apache.openjpa.persistence.EntityManagerImpl.refresh(EntityManagerImpl.java:688)
    at com.ibm.worklight.admin.actions.BaseTransaction.setNewProjectTransactionID(BaseTransaction.java:643)
    at com.ibm.worklight.admin.actions.BaseTransaction.internalRun(BaseTransaction.java:336)
    at com.ibm.worklight.admin.actions.BaseTransaction$1.run(BaseTransaction.java:235)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

Jun 03, 2015 2:04:10 PM com.worklight.core.ilmt.WorklightILMTLogger dumpLicense
INFO: FWLSE0277I: Creating an ILMT record in the file '/var/ibm/common/slm/e1178f0cf1cfd7b4017f37827cae010b.slmtag'.

Finally this issue was solved by setting

max_allowed_packet = 30M 

and

binlog_format = mixed

in mysql's my.cnf file.