Hello.

I made a migration of some portlets from 6.2 to DXP. They were migrated as normal war files not modules.
I was using the SP1 version of liferay DXP and there was no problems, but last week the server was upgraded to the SP3 version of liferay DXP and all the portlets stopped working.
The server is Websphere Application Server, I tested on my local server who is running on Tomcat and the same erro happens when I upgrade the liferay server to SP3

Error Message:

11:19:31,507 INFO  [fileinstall-/home/dgomez/liferay-developer-studio/liferay-dxp-digital-enterprise-7.0-sp3/osgi/war][BaseDeployer:853] Deploying Events-portlet.war
  Warning: WEB-INF/liferay-plugin-package.properties modified in the future.
11:19:31,788 INFO  [fileinstall-/home/dgomez/liferay-developer-studio/liferay-dxp-digital-enterprise-7.0-sp3/osgi/war][BaseAutoDeployListener:50] Portlets for /home/dgomez/liferay-developer-studio/liferay-dxp-digital-enterprise-7.0-sp3/tomcat-8.0.32/temp/20170524111931458IOCPXANZ/Events-portlet.war copied successfully
11:19:36,616 WARN  [fileinstall-/home/dgomez/liferay-developer-studio/liferay-dxp-digital-enterprise-7.0-sp3/osgi/war][org_apache_felix_fileinstall:103] Error while starting bundle: webbundle:file:/home/dgomez/liferay-developer-studio/liferay-dxp-digital-enterprise-7.0-sp3/osgi/war/Events-portlet.war?Bundle-SymbolicName=Events-portlet&Web-ContextPath=/Events-portlet 
org.osgi.framework.BundleException: Could not resolve module: Events-portlet [539]_  Unresolved requirement: Import-Package: antlr; resolution:="optional"_  Unresolved requirement: Import-Package: antlr.collections.impl; resolution:="optional"_  Unresolved requirement: Import-Package: bsh; resolution:="optional"_  Unresolved requirement: Import-Package: com.apple.mrj; resolution:="optional"_  Unresolved requirement: Import-Package: com.lowagie.toolbox; resolution:="optional"_  Unresolved requirement: Import-Package: com.opensymphony.util; resolution:="optional"_  Unresolved requirement: Import-Package: com.opensymphony.webwork; resolution:="optional"_  Unresolved requirement: Import-Package: com.opensymphony.webwork.views.jasperreports; resolution:="optional"_  Unresolved requirement: Import-Package: com.opensymphony.xwork; resolution:="optional"_  Unresolved requirement: Import-Package: com.opensymphony.xwork.util; resolution:="optional"_  Unresolved requirement: Import-Package: com.sun.image.codec.jpeg; resolution:="optional"_  Unresolved requirement: Import-Package: com.swabunga.spell.engine; resolution:="optional"_  Unresolved requirement: Import-Package: com.swabunga.spell.event; resolution:="optional"_ Unresolved requirement: Import-Package: groovyjarjarasm.asm; resolution:="optional"_  Unresolved requirement: Import-Package: javax.annotation.security; resolution:="optional"_  Unresolved requirement: Import-Package: jxl; resolution:="optional"_  Unresolved requirement: Import-Package: jxl.biff; resolution:="optional"_  Unresolved requirement: Import-Package: jxl.format; resolution:="optional"_  Unresolved requirement: Import-Package: jxl.write; resolution:="optional"_  Unresolved requirement: Import-Package: jxl.write.biff; resolution:="optional"_  Unresolved requirement: Import-Package: mondrian.olap; resolution:="optional"_  Unresolved requirement: Import-Package: net.fortuna.ical4j.model; resolution:="optional"_  Unresolved requirement: Import-Package: net.fortuna.ical4j.model.property; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.jasper.builder; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.base; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.base.component; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.base.expression; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.builder; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.builder.column; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.builder.component; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.builder.datatype; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.builder.style; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.constant; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.definition; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.definition.datatype; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.definition.expression; resolution:="optional"_  Unresolved requirement: Import-Package: net.sf.dynamicreports.report.exception; resolution:="optional"_  Unresolved requirement: Import-Package: net.sourceforge.barbecue; resolution:="optional"_  Unresolved requirement: Import-Package: net.sourceforge.barbecue.linear.code39; resolution:="optional"_  Unresolved requirement: Import-Package: net.sourceforge.barbecue.linear.ean; resolution:="optional"_  Unresolved requirement: Import-Package: net.sourceforge.barbecue.output; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.axis.tools.ant.wsdl; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.batik.bridge; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.batik.dom; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.batik.dom.svg; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.batik.ext.awt.image; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.batik.gvt; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.batik.svggen; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.bsf; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.commons.configuration; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.commons.digester; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.commons.digester.xmlrules; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.commons.javaflow; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.jcp.xml.dsig.internal.dom; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hdgf.extractor; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hpbf.extractor; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hslf.extractor; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hslf.model; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hsmf; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hsmf.datatypes; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hsmf.extractor; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hwpf; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.hwpf.extractor; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.poi.wp.usermodel; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.portals.bridges.common; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.portals.bridges.struts; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.xmlbeans; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.xmlbeans.impl.common; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.xmlbeans.impl.values; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.xmlbeans.impl.xb.xmlschema; resolution:="optional"_  Unresolved requirement: Import-Package: org.apache.xmlbeans.xml.stream; resolution:="optional"_  Unresolved requirement: Import-Package: org.aspectj.weaver.tools; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.cmp; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.cms; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.nist; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.ocsp; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.pkcs; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.tsp; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.x500; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.asn1.x509; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.cert; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.cert.jcajce; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.cert.ocsp; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.cms; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.cms.bc; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.crypto; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.crypto.engines; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.crypto.generators; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.crypto.modes; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.crypto.paddings; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.crypto.params; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.jce.provider; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.ocsp; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.operator; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.operator.bc; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.tsp; resolution:="optional"_  Unresolved requirement: Import-Package: org.bouncycastle.util; resolution:="optional"_  Unresolved requirement: Import-Package: org.codehaus.groovy.ast; resolution:="optional"_  Unresolved requirement: Import-Package: org.codehaus.groovy.control; resolution:="optional"_  Unresolved requirement: Import-Package: org.codehaus.jackson.map; resolution:="optional"_  Unresolved requirement: Import-Package: org.eclipse.jdt.core.compiler; resolution:="optional"_  Unresolved requirement: Import-Package: org.eclipse.jdt.internal.compiler; resolution:="optional"_  Unresolved requirement: Import-Package: org.eclipse.jdt.internal.compiler.classfmt; resolution:="optional"_  Unresolved requirement: Import-Package: org.eclipse.jdt.internal.compiler.env; resolution:="optional"_  Unresolved requirement: Import-Package: org.eclipse.jdt.internal.compiler.problem; resolution:="optional"_  Unresolved requirement: Import-Package: org.etsi.uri.x01903.v14; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.axis; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.entity; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.labels; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.plot; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.plot.dial; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.renderer.category; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.renderer.xy; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.chart.title; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.data; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.data.category; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.data.gantt; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.data.general; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.data.time; resolution:="optional"_  Unresolved requirement: Import-Package: org.jfree.data.xy; resolution:="optional"_  Unresolved requirement: Import-Package: org.junit; resolution:="optional"_  Unresolved requirement: Import-Package: org.junit.internal; resolution:="optional"_  Unresolved requirement: Import-Package: org.junit.runner; resolution:="optional"_  Unresolved requirement: Import-Package: org.junit.runner.notification; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.codabar; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.code128; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.code39; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.datamatrix; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.fourstate; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.int2of5; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.pdf417; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.postnet; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.impl.upcean; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.output; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.output.bitmap; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.output.svg; resolution:="optional"_  Unresolved requirement: Import-Package: org.krysalis.barcode4j.tools; resolution:="optional"_  Unresolved requirement: Import-Package: org.mozilla.javascript; resolution:="optional"_  Unresolved requirement: Import-Package: org.openid4java.consumer; resolution:="optional"_  Unresolved requirement: Import-Package: org.openxmlformats.schemas.officeDocument.x2006.math; resolution:="optional"_  Unresolved requirement: Import-Package: org.openxmlformats.schemas.schemaLibrary.x2006.main; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.ldap.core; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.ldap.core.support; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.messaging; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.messaging.handler.invocation; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.messaging.simp; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.messaging.simp.annotation.support; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.messaging.simp.config; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.messaging.support; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.ldap; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.ldap.authentication; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.ldap.search; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.ldap.server; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.ldap.userdetails; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.messaging.access.expression; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.messaging.access.intercept; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.messaging.context; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.messaging.util.matcher; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.messaging.web.csrf; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.messaging.web.socket.server; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.security.openid; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.web.cors; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.web.socket.config.annotation; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.web.socket.server.support; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.web.socket.sockjs; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.web.socket.sockjs.support; resolution:="optional"_  Unresolved requirement: Import-Package: org.springframework.web.socket.sockjs.transport; resolution:="optional"_  Unresolved requirement: Import-Package: org.w3c.dom.svg; resolution:="optional"_  Unresolved requirement: Import-Package: schemasMicrosoftComOfficePowerpoint; resolution:="optional"_  Unresolved requirement: Import-Package: schemasMicrosoftComOfficeWord; resolution:="optional"_  Unresolved requirement: Import-Package: sun.print; resolution:="optional"_  Unresolved requirement: Require-Capability: osgi.extender; filter:="(&(osgi.extender=jsp.taglib)(uri=http://www.springframework.org/tags))"_ [Sanitized]
	at org.eclipse.osgi.container.Module.start(Module.java:429)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:402)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1253)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1225)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:512)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:361)
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:312)

The portlets were made using Spring Framework, and the Spring jar files are included inside the portlet .
The source code didn't change between liferay DXP versions.

Thanks.