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RE: Error while deploying portlet with remote service
Hello to all.
I'm using plugins sdk 6.2 with a portal 6.2 ga 5 bundled with tomcat 7.0.62
I tried to create a portlet with remote service, but when i try to deploy i get an error during the jsonws registration and i can't see it in the context paths in api/jsonws.
I followed the tutorial in the documentation.
the error is the following
Loading file:/C:/sviluppo/LT-Hipersonic/liferay-portal-6.2-ce-ga5/tomcat-7.0.62/temp/9-PWS-portlet/WEB-INF/classes/service.properties
Loading file:/C:/sviluppo/LT-Hipersonic/liferay-portal-6.2-ce-ga5/tomcat-7.0.62/temp/9-PWS-portlet/WEB-INF/classes/service.properties
16:33:55,624 ERROR [localhost-startStop-20][MethodParametersResolverImpl:59] java.lang.IllegalArgumentException
java.lang.IllegalArgumentException
at jodd.asm4.ClassReader.<init>(ClassReader.java:170)
at jodd.asm4.ClassReader.<init>(ClassReader.java:153)
at jodd.asm4.ClassReader.<init>(ClassReader.java:424)
at jodd.paramo.Paramo.resolveParameters(Paramo.java:59)
at com.liferay.portal.util.MethodParametersResolverImpl.resolveMethodParameters(MethodParametersResolverImpl.java:47)
at com.liferay.portal.kernel.util.MethodParametersResolverUtil.resolveMethodParameters(MethodParametersResolverUtil.java:34)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:44)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:66)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerJSONWebServiceAction(JSONWebServiceActionsManagerImpl.java:275)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerJSONWebServiceAction(JSONWebServiceActionsManagerUtil.java:92)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.registerJSONWebServiceAction(JSONWebServiceRegistrator.java:261)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.onJSONWebServiceBean(JSONWebServiceRegistrator.java:195)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processBean(JSONWebServiceRegistrator.java:93)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processAllBeans(JSONWebServiceRegistrator.java:68)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:332)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:296)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerServletContext(JSONWebServiceActionsManagerUtil.java:97)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.doInvokeDeploy(JSONWebServiceHotDeployListener.java:66)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.invokeDeploy(JSONWebServiceHotDeployListener.java:34)
at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:230)
at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:96)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28)
at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164)
at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154)
at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58)
at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54)
at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1948)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
16:33:55,624 ERROR [localhost-startStop-20][JSONWebServiceRegistrator:96] java.lang.NullPointerException
java.lang.NullPointerException
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:48)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:66)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerJSONWebServiceAction(JSONWebServiceActionsManagerImpl.java:275)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerJSONWebServiceAction(JSONWebServiceActionsManagerUtil.java:92)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.registerJSONWebServiceAction(JSONWebServiceRegistrator.java:261)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.onJSONWebServiceBean(JSONWebServiceRegistrator.java:195)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processBean(JSONWebServiceRegistrator.java:93)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processAllBeans(JSONWebServiceRegistrator.java:68)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:332)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:296)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerServletContext(JSONWebServiceActionsManagerUtil.java:97)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.doInvokeDeploy(JSONWebServiceHotDeployListener.java:66)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.invokeDeploy(JSONWebServiceHotDeployListener.java:34)
at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:230)
at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:96)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28)
at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164)
at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154)
at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58)
at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54)
at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1948)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
16:33:55,627 INFO [localhost-startStop-20][PortletHotDeployListener:344] Registering portlets for PWS-portlet
Loading file:/C:/sviluppo/LT-Hipersonic/liferay-portal-6.2-ce-ga5/tomcat-7.0.62/temp/9-PWS-portlet/WEB-INF/classes/portlet.properties
16:33:56,016 INFO [localhost-startStop-20][PortletHotDeployListener:492] 1 portlet for PWS-portlet is available for use
gen 25, 2017 4:33:56 PM org.apache.catalina.startup.HostConfig deployDirectory
INFORMAZIONI: Deployment of web application directory C:\sviluppo\LT-Hipersonic\liferay-portal-6.2-ce-ga5\tomcat-7.0.62\webapps\PWS-portlet has finished in 2,751 ms
Do anyone has some advice? Is it a problem of web.xml configuration?
Strangely when I tried an example found on internet:
https://sourceforge.net/p/lportal/news/2014/02/liferay-plugin-portlet-json-web-services/
https://sourceforge.net/projects/meeralferay/files/LiferayPluginPortletJSONWebServices/
I inlcuded the portlet with eclipse using new liferay plugin from eexisting source, and it works.
Are there some differences beetween liferay 6.1 and 6.2?
Thanks to all
I'm using plugins sdk 6.2 with a portal 6.2 ga 5 bundled with tomcat 7.0.62
I tried to create a portlet with remote service, but when i try to deploy i get an error during the jsonws registration and i can't see it in the context paths in api/jsonws.
I followed the tutorial in the documentation.
the error is the following
Loading file:/C:/sviluppo/LT-Hipersonic/liferay-portal-6.2-ce-ga5/tomcat-7.0.62/temp/9-PWS-portlet/WEB-INF/classes/service.properties
Loading file:/C:/sviluppo/LT-Hipersonic/liferay-portal-6.2-ce-ga5/tomcat-7.0.62/temp/9-PWS-portlet/WEB-INF/classes/service.properties
16:33:55,624 ERROR [localhost-startStop-20][MethodParametersResolverImpl:59] java.lang.IllegalArgumentException
java.lang.IllegalArgumentException
at jodd.asm4.ClassReader.<init>(ClassReader.java:170)
at jodd.asm4.ClassReader.<init>(ClassReader.java:153)
at jodd.asm4.ClassReader.<init>(ClassReader.java:424)
at jodd.paramo.Paramo.resolveParameters(Paramo.java:59)
at com.liferay.portal.util.MethodParametersResolverImpl.resolveMethodParameters(MethodParametersResolverImpl.java:47)
at com.liferay.portal.kernel.util.MethodParametersResolverUtil.resolveMethodParameters(MethodParametersResolverUtil.java:34)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:44)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:66)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerJSONWebServiceAction(JSONWebServiceActionsManagerImpl.java:275)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerJSONWebServiceAction(JSONWebServiceActionsManagerUtil.java:92)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.registerJSONWebServiceAction(JSONWebServiceRegistrator.java:261)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.onJSONWebServiceBean(JSONWebServiceRegistrator.java:195)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processBean(JSONWebServiceRegistrator.java:93)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processAllBeans(JSONWebServiceRegistrator.java:68)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:332)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:296)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerServletContext(JSONWebServiceActionsManagerUtil.java:97)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.doInvokeDeploy(JSONWebServiceHotDeployListener.java:66)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.invokeDeploy(JSONWebServiceHotDeployListener.java:34)
at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:230)
at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:96)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28)
at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164)
at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154)
at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58)
at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54)
at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1948)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
16:33:55,624 ERROR [localhost-startStop-20][JSONWebServiceRegistrator:96] java.lang.NullPointerException
java.lang.NullPointerException
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:48)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionConfig.<init>(JSONWebServiceActionConfig.java:66)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerJSONWebServiceAction(JSONWebServiceActionsManagerImpl.java:275)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerJSONWebServiceAction(JSONWebServiceActionsManagerUtil.java:92)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.registerJSONWebServiceAction(JSONWebServiceRegistrator.java:261)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.onJSONWebServiceBean(JSONWebServiceRegistrator.java:195)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processBean(JSONWebServiceRegistrator.java:93)
at com.liferay.portal.jsonwebservice.JSONWebServiceRegistrator.processAllBeans(JSONWebServiceRegistrator.java:68)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:332)
at com.liferay.portal.jsonwebservice.JSONWebServiceActionsManagerImpl.registerServletContext(JSONWebServiceActionsManagerImpl.java:296)
at com.liferay.portal.kernel.jsonwebservice.JSONWebServiceActionsManagerUtil.registerServletContext(JSONWebServiceActionsManagerUtil.java:97)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.doInvokeDeploy(JSONWebServiceHotDeployListener.java:66)
at com.liferay.portal.deploy.hot.JSONWebServiceHotDeployListener.invokeDeploy(JSONWebServiceHotDeployListener.java:34)
at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:230)
at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:96)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28)
at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164)
at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154)
at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:74)
at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58)
at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54)
at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1948)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
16:33:55,627 INFO [localhost-startStop-20][PortletHotDeployListener:344] Registering portlets for PWS-portlet
Loading file:/C:/sviluppo/LT-Hipersonic/liferay-portal-6.2-ce-ga5/tomcat-7.0.62/temp/9-PWS-portlet/WEB-INF/classes/portlet.properties
16:33:56,016 INFO [localhost-startStop-20][PortletHotDeployListener:492] 1 portlet for PWS-portlet is available for use
gen 25, 2017 4:33:56 PM org.apache.catalina.startup.HostConfig deployDirectory
INFORMAZIONI: Deployment of web application directory C:\sviluppo\LT-Hipersonic\liferay-portal-6.2-ce-ga5\tomcat-7.0.62\webapps\PWS-portlet has finished in 2,751 ms
Do anyone has some advice? Is it a problem of web.xml configuration?
Strangely when I tried an example found on internet:
https://sourceforge.net/p/lportal/news/2014/02/liferay-plugin-portlet-json-web-services/
https://sourceforge.net/projects/meeralferay/files/LiferayPluginPortletJSONWebServices/
I inlcuded the portlet with eclipse using new liferay plugin from eexisting source, and it works.
Are there some differences beetween liferay 6.1 and 6.2?
Thanks to all
Took 2 days to figure this out. This is somehow related to Java version. Try using Java8 for building and deploying your services. It will work. Worked for me.
A blind guess why this is happening:
Liferay is using jodd.asm5 (Check first line of your exception trace)
and I checked Jodd site https://jodd.org/download/ and they are not supporting it after Java 8. Not sure how Liferay is using that.
A blind guess why this is happening:
Liferay is using jodd.asm5 (Check first line of your exception trace)
and I checked Jodd site https://jodd.org/download/ and they are not supporting it after Java 8. Not sure how Liferay is using that.
Dhruv Pandey:
Took 2 days to figure this out. This is somehow related to Java version. Try using Java8 for building and deploying your services. It will work. Worked for me.
A blind guess why this is happening:
Liferay is using jodd.asm5 (Check first line of your exception trace)
and I checked Jodd site https://jodd.org/download/ and they are not supporting it after Java 8. Not sure how Liferay is using that.
Hm - back in the 6.x times, there was no Java11 support at all, maximum is Java 8 AFAIK.
I understand your objection (and am wondering about it) for newer versions, but in 6.2 the recommendation to go with (max) Java8 is solid.
Enrique Valdes Lacasa, modified 5 Years ago.
Junior Member
Posts: 92
Join Date: 7/29/14
Recent Posts
Thanks a lot for your answer Dhruv Pandey! By the way, I ran into this exact issue in a Liferay 7.2 instance on Java 11.
I had this configuration in the build plugin of my service pom.xml:
I had this configuration in the build plugin of my service pom.xml:
<build>
<plugins>
<plugin>
<groupid>org.apache.maven.plugins</groupid>
<artifactid>maven-compiler-plugin</artifactid>
<version>3.8.1</version>
<configuration>
<source>1.8
<target>11</target>
</configuration>
</plugin>
...
</plugins>
<build></build></build> <build>
<plugins>
<plugin>
<groupid>org.apache.maven.plugins</groupid>
<artifactid>maven-compiler-plugin</artifactid>
<version>3.8.1</version>
<configuration>
<source>1.8
<target>1.8</target>
</configuration>
</plugin>
...
</plugins>
<build></build></build>
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