IBM MobileFirst Platform ClassPath error during installation - ibm-mobilefirst

Running MFPF7.0.0.0-IF201506081356 on WebSphere Liberty 8.5.5.5 (that's 8.5.5 with fp 5 applied), IBM Java 7.0.8.10.
After deploying the first runtime to server the following error occurs:
6/10/15 15:25:05:600 CEST] 0000002c com.ibm.ws.webcontainer.webapp E SRVE0293E: [Servlet Error]-[Failed to load listener: com.worklight.server.bundle.project.JeeProjectActivator]: java.lang.NoClassDefFoundError: com.worklight.server.bundle.api.WorklightBundles
at com.ibm.ws.classloading.internal.AppClassLoader.definePackageAndClass(AppClassLoader.java:308)
at com.ibm.ws.classloading.internal.AppClassLoader.findClass(AppClassLoader.java:252)
at com.ibm.ws.classloading.internal.ParentLastClassLoader.findOrDelegateLoadClass(ParentLastClassLoader.java:81)
at com.ibm.ws.classloading.internal.AppClassLoader.loadClass(AppClassLoader.java:373)
at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:764)
at java.lang.ClassLoader.loadClass(ClassLoader.java:749)
at com.ibm.ws.classloading.internal.UnifiedClassLoader.loadClass0(UnifiedClassLoader.java:106)
at com.ibm.ws.classloading.internal.UnifiedClassLoader$Delegation.loadClass(UnifiedClassLoader.java:77)
at com.ibm.ws.classloading.internal.UnifiedClassLoader.loadClass(UnifiedClassLoader.java:101)
at com.ibm.ws.classloading.internal.ThreadContextClassLoader.loadClass(ThreadContextClassLoader.java:108)
at java.lang.ClassLoader.loadClass(ClassLoader.java:726)
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:283)
at com.sun.beans.finder.ClassFinder.findClass(ClassFinder.java:116)`enter code here`
Any suggestions?

Generally it means that the worklight-jee-library.jar shared library referenced in the server.xml (in each MFP runtime application) is not found. Check the path of this library in the server.xml and that the jar file is present in this path.

Related

weblogic ear deployment error with nullpointerexception

I'm trying to migrate my project from 12.1a weblogic to 12c and encountered error during ear deployment.
I have one ear module which contains two war submodules. during the process while I was trying to deploy ear:exploded artifact to weblogic 12c. I got nullpointer exception which related to BaseJ2eeAnnotationProcessor.getClassPersistenceContextRefs
The error log is as follows:
weblogic.management.DeploymentException:
java.lang.NullPointerException at
weblogic.application.internal.BaseDeployment.throwAppException(BaseDeployment.java:132)
at
weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:244)
at
weblogic.application.internal.EarDeployment.prepare(EarDeployment.java:66)
at
weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:158)
at
weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:65)
at
weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:229)
at
weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:103)
at
weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:242)
at
weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:800)
at
weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1352)
at
weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:270)
at
weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:177)
at
weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:186)
at
weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:14)
at
weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:47)
at
weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:681)
at
weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at
weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at
weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at
weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at
weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:655)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420) at
weblogic.work.ExecuteThread.run(ExecuteThread.java:360)
Blockquote
Caused By:
java.lang.NullPointerException at
weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getClassPersistenceContextRefs(BaseJ2eeAnnotationProcessor.java:1180)
at
weblogic.j2ee.dd.xml.J2eeAnnotationProcessor.processJ2eeAnnotations(J2eeAnnotationProcessor.java:44)
at
weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.processJ2eeAnnotations(BaseJ2eeAnnotationProcessor.java:120)
at
weblogic.j2ee.dd.xml.PojoAnnotationProcessorImpl.processJ2eeAnnotations(PojoAnnotationProcessorImpl.java:93)
at
weblogic.application.internal.flow.PojoAnnotationProcessingFlow.processAnnotations(PojoAnnotationProcessingFlow.java:304)
at
weblogic.application.internal.flow.PojoAnnotationProcessingFlow.processPOJOsInModuleScopes(PojoAnnotationProcessingFlow.java:229)
at
weblogic.application.internal.flow.PojoAnnotationProcessingFlow.prepare(PojoAnnotationProcessingFlow.java:73)
at
weblogic.application.internal.BaseDeployment$1.next(BaseDeployment.java:729)
at
weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:45)
at
weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:241)
at
weblogic.application.internal.EarDeployment.prepare(EarDeployment.java:66)
at
weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:158)
at
weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:65)
at
weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:229)
at
weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:103)
at
weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:242)
at
weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:800)
at
weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1352)
at
weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:270)
at
weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:177)
at
weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:186)
at
weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:14)
at
weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:47)
at
weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:681)
at
weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at
weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at
weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at
weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at
weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:655)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420) at
weblogic.work.ExecuteThread.run(ExecuteThread.java:360)
I've added several datasources in weblogic console and nothing else was added.
It would be great if somebody could help!
Match up the jpa version of the server and your application . WebLogic defaults to jpa 2.0 check in your project facets the JPA version and update WebLogic runtime to have the same JPA version

MobileFirst Server not startng untill JVM.options is edited in Windows 8.1

I have faced a problem like Mobilefirst server not starting until i
edit the JVM.options (-DOS.name = Windows 8) in the eclipse.
I need to do the above step manually whenever i create a new workspace
Is there
any other way to completely resolve this problem.
Note : I am using Windows 8.1
Error Log
Listening for transport dt_socket at address: 10777
CWWKE0005E: The runtime environment could not be launched.
CWWKE0018E: An exception occurred while launching the runtime environment: java.lang.IllegalArgumentException: WebSphere-DefaultExtension-windowsnt(unknown)
com.ibm.ws.kernel.boot.LaunchException: Caught unexpected exception java.lang.IllegalArgumentException: WebSphere-DefaultExtension-windowsnt(unknown)
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.rethrowException(KernelBootstrap.java:418)
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.go(KernelBootstrap.java:183)
at com.ibm.ws.kernel.boot.Launcher.createPlatform(Launcher.java:131)
at com.ibm.ws.kernel.boot.Launcher.main(Launcher.java:55)
at com.ibm.ws.kernel.boot.cmdline.EnvCheck.main(EnvCheck.java:52)
Caused by: java.lang.IllegalArgumentException: WebSphere-DefaultExtension-windowsnt(unknown)
at java.util.jar.Attributes$Name.<init>(Unknown Source)
at java.util.jar.Attributes.getValue(Unknown Source)
at com.ibm.ws.kernel.boot.internal.BootstrapManifest.getOSExtensionDefinition(BootstrapManifest.java:157)
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.go(KernelBootstrap.java:123)
... 3 more
Try adding that option to the eclipse.ini file located in your Eclipse installation folder, instead of in the JVM.options of your workspace.

Worklight 6.2 - java.lang.NullPointerException

In Worklight 6.2, there is new method to deploy the Worklight Project, which is using IBM Worklight Server Configuration Tool
refer here :
http://www-01.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.deploy.doc/deploy/c_using_server_config_tool.html
After setup Worklight admin, and deploy Worklight Project WAR through that. From my understanding, the worklight project will be called runtime
I found errors on the Websphere Logs as below:
[10/3/14 0:37:55:758 MYT] 0000007e FfdcProvider W com.ibm.ws.ffdc.impl.FfdcProvider logIncident FFDC1003I: FFDC Incident emitted on /apps/IBM/WebSphere/AppServer/profiles/AppSrv01/logs/ffdc/server1_6adbbbb2_14.10.03_00.37.55.7436943857084851194341.txt com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters -RE 1123
[10/3/14 0:37:55:758 MYT] 0000007e LocalTranCoor E WLTC0017E: Resources rolled back due to setRollbackOnly() being called.
[10/3/14 0:37:55:769 MYT] 0000007e webapp E com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E: [Servlet Error]-[ServletNameNotFound]: java.lang.NullPointerException
in the http://localhost:9080/worklightconsole/index.html#
Got display as below:
Below is the proof that runtime/worklight project is deployed successfully:
​Next action is to troubleshoot why the runtime/worklight project is not working.
How I can rectify this problem? Thanks.
The exception is in a web container class of WebSphere. You must look at the content of the ffdc file
/apps/IBM/WebSphere/AppServer/profiles/AppSrv01/logs/ffdc/server1_6adbbbb2_14.10.03_00.37.55.7436943857084851194341.txt to see if there are more details in particular the servlet that cannot be found.
But it seems that something is wrong in the Worklight configuration under WAS (viewing the "Servlet not found" error).
The Worklight servlets are in the jar "worklight-jee-library.jar" that is configured as a shared library in WAS.
Without all the WAS logs it is not possible to find the real cause. So you can review the WAS configuration after the deployment by following :
http://www-01.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.installconfig.doc/admin/t_configuring_websphere_application_server_for_wladmin_manually.html,
http://www-01.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.installconfig.doc/admin/t_configuring_websphere_application_server_for_oracle_manually_for_wladmin.html,
http://www-01.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.deploy.doc/admin/t_configuring_websphere_application_server_for_oracle_manually.html,
http://www-01.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.deploy.doc/admin/t_configuring_websphere_application_server_manually.html
The other reason could be that your Worklight project is not a 6.2 project. How do you build you war file ?

Worklight server - Error 500: Could not find required filter class - com.worklight.core.auth.impl.AuthenticationFilter.class

I'm using worklight 6.1 for my mobile app project. My problem is, I got this error message when I try to upload war file into worklight server. I already install worklight server into my websphere.
Error 500: javax.servlet.ServletException: Filter [authenticationFilter]: Could not find required filter class - com.worklight.core.auth.impl.AuthenticationFilter.class
These are steps for uploading war file into worklight server.
1.Build project_name.war file from IBM Worklight Studio v6.1.
2.Deploy the .war file to IBM Websphere Integrated Solutions Console v8.5.5.0.
3.Open the WebSphere enterprise application and click install.
4.Choose the project.war file from the worklight project directory.
5.Click on next button for fast path.
6.Click on next button.
7.Choose the server 1.
8.Choose on the target JNDI.
9.Set the Virtual Host to default_host.
10.Set the context root.
11.Click on finish button.
12.Save directly to master configuration.
13.Start the application.
14.Open the server URL to get into the wroklight server to deploy application, adapter and etc, but failed to open the server URL with this error and the error log as below.
[3/6/14 10:18:50:442 MYT] 0000009e webapp E com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E: [Servlet Error]-[com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor]: java.lang.ClassNotFoundException: class java.lang.ClassNotFoundException: com.worklight.core.auth.impl.AuthenticationFilter
at java.beans.Beans.instantiate(Beans.java:195)
at java.beans.Beans.instantiate(Beans.java:80)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager._loadFilter(WebAppFilterManager.java:533)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.loadFilter(WebAppFilterManager.java:475)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterInstanceWrapper(WebAppFilterManager.java:308)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterChain(WebAppFilterManager.java:380)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:892)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1025)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3761)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:976)
at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:459)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:526)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:312)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:283)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1862)
My latest error message on 10 March 2014
Error 500: javax.servlet.ServletException: Worklight Console initialization failed.Logged Exception: java.lang.RuntimeException: FWLSE0206E: The project /rmbp failed to initialize, because the project database schema for data source jdbc:db2://192.168.1.80:50001/APPCNTR is from version N/A, which is not supported by the server from version 6.1.0.00.20131126-0630. Use the Worklight ant tasks to upgrade the project database schema.
You may want to look at this similar post for suggestions:
IBM Worklight 6.0 - Worklight Console does not show up after installing WL 6.0 server on Liberty profile - Error 500
Importantly "you need to make sure that your worklight-jee-library.jar is in the application classloader." Like Idan suggested above you can easily use the ant scripts we provide in order to accomplish this in a more automated fashion:
https://pic.dhe.ibm.com/infocenter/wrklight/v6r1m0/index.jsp?topic=%2Fcom.ibm.worklight.deploy.doc%2Fdevref%2Ft_transporting_apps_and_adapters.html

java.lang.UnsupportedClassVersionError: bad major version at offset=6

I have deployed a WAR file in the webapps folder in my tomcat. And when I am starting my tomcat, like below
C:\apache-tomcat-6.0.35\bin>startup.bat
Using CATALINA_BASE: "C:\apache-tomcat-6.0.35"
Using CATALINA_HOME: "C:\apache-tomcat-6.0.35"
Using CATALINA_TMPDIR: "C:\apache-tomcat-6.0.35\temp"
Using JRE_HOME: "C:\Program Files (x86)\IBM\RationalSDLC\Common\Java5.0\jre"
Using CLASSPATH: "C:\apache-tomcat-6.0.35\bin\bootstrap.jar"
I am getting this below exception-
SEVERE: Error deploying web application archive DirectoryServer.war
java.lang.UnsupportedClassVersionError: (com/services/rest/Listener) bad major version at offset=6 (unable to load class com.services.rest.Listener)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at org.apache.catalina.startup.WebAnnotationSet.loadClassAnnotation(WebAnnotationSet.java:145)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations(WebAnnotationSet.java:73)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:56)
at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:297)
at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1078)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4612)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
And this is my JAVA version-
C:\apache-tomcat-6.0.35\bin>java -version
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)
Can anyone provide any suggestion why is it happening?
You have essentially compiled your code with JDK 1.6 but running it with Java 5 - Just ensure a Java 6 runtime.
Even I faced same problem. The problem is inappropriate class version, for ex. compiling with different jre.
Solution: IF you are using Eclipse or RAD, set change compiler setting as per your requirement and also change same setting to project configuration by clicking on "Configure Project specific setting". Windows->Preferences->Compiler-> click on link "Configure Project specific setting".
For me the fix was to set the JAVA_Home system variable to the correct path.
It is a compiler issue. Make sure all your modules are configured with java 1.5 as a compiler. Window-->preference--> Java --> Compiler. Make sure 1.5 is selected.