Unable to load jar files from Modules

INFO - LocalSessionFactoryBean.buildSessionFactory(777) |2015-10-22 16:44:47,198| Building new Hibernate SessionFactory
WARN - ModuleFileParser.parse(298) |2015-10-22 16:44:52,763| Unable to close jarfile: null
java.lang.NullPointerException
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:295)
	at org.openmrs.module.ModuleFactory.getModuleFromFile(ModuleFactory.java:444)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:102)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:89)
	at org.openmrs.web.Listener.loadBundledModules(Listener.java:456)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:188)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
ERROR - ModuleFactory.getModuleFromFile(447) |2015-10-22 16:44:52,764| Error getting module object from file birt-2.3.2.1.omod
org.openmrs.module.ModuleException: Unable to get jar file Module: birt-2.3.2.1.omod
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:141)
	at org.openmrs.module.ModuleFactory.getModuleFromFile(ModuleFactory.java:444)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:102)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:89)
	at org.openmrs.web.Listener.loadBundledModules(Listener.java:456)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:188)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
Caused by: java.util.zip.ZipException: error in opening zip file
	at java.util.zip.ZipFile.open(Native Method)
	at java.util.zip.ZipFile.<init>(ZipFile.java:215)
	at java.util.zip.ZipFile.<init>(ZipFile.java:145)
	at java.util.jar.JarFile.<init>(JarFile.java:154)
	at java.util.jar.JarFile.<init>(JarFile.java:118)
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:138)
	... 6 more
WARN - Listener.loadBundledModules(460) |2015-10-22 16:44:52,764| Error while trying to load bundled module birt-2.3.2.1.omod
org.openmrs.module.ModuleException: Unable to get jar file Module: birt-2.3.2.1.omod
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:141)
	at org.openmrs.module.ModuleFactory.getModuleFromFile(ModuleFactory.java:444)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:102)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:89)
	at org.openmrs.web.Listener.loadBundledModules(Listener.java:456)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:188)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
Caused by: java.util.zip.ZipException: error in opening zip file
	at java.util.zip.ZipFile.open(Native Method)
	at java.util.zip.ZipFile.<init>(ZipFile.java:215)
	at java.util.zip.ZipFile.<init>(ZipFile.java:145)
	at java.util.jar.JarFile.<init>(JarFile.java:154)
	at java.util.jar.JarFile.<init>(JarFile.java:118)
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:138)
	... 6 more
WARN - ModuleFileParser.parse(298) |2015-10-22 16:44:52,793| Unable to close jarfile: null
java.lang.NullPointerException
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:295)
	at org.openmrs.module.ModuleFactory.getModuleFromFile(ModuleFactory.java:444)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:102)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:89)
	at org.openmrs.web.Listener.loadBundledModules(Listener.java:456)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:188)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
ERROR - ModuleFactory.getModuleFromFile(447) |2015-10-22 16:44:52,793| Error getting module object from file ugandacore-1.0-SNAPSHOT.omod
org.openmrs.module.ModuleException: Unable to get jar file Module: ugandacore-1.0-SNAPSHOT.omod
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:141)
	at org.openmrs.module.ModuleFactory.getModuleFromFile(ModuleFactory.java:444)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:102)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:89)
	at org.openmrs.web.Listener.loadBundledModules(Listener.java:456)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:188)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
Caused by: java.util.zip.ZipException: error in opening zip file
	at java.util.zip.ZipFile.open(Native Method)
	at java.util.zip.ZipFile.<init>(ZipFile.java:215)
	at java.util.zip.ZipFile.<init>(ZipFile.java:145)
	at java.util.jar.JarFile.<init>(JarFile.java:154)
	at java.util.jar.JarFile.<init>(JarFile.java:118)
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:138)
	... 6 more
WARN - Listener.loadBundledModules(460) |2015-10-22 16:44:52,809| Error while trying to load bundled module ugandacore-1.0-SNAPSHOT.omod
org.openmrs.module.ModuleException: Unable to get jar file Module: ugandacore-1.0-SNAPSHOT.omod
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:141)
	at org.openmrs.module.ModuleFactory.getModuleFromFile(ModuleFactory.java:444)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:102)
	at org.openmrs.module.ModuleFactory.loadModule(ModuleFactory.java:89)
	at org.openmrs.web.Listener.loadBundledModules(Listener.java:456)
	at org.openmrs.web.Listener.startOpenmrs(Listener.java:188)
	at org.openmrs.web.WebDaemon$1.run(WebDaemon.java:42)
Caused by: java.util.zip.ZipException: error in opening zip file
	at java.util.zip.ZipFile.open(Native Method)
	at java.util.zip.ZipFile.<init>(ZipFile.java:215)
	at java.util.zip.ZipFile.<init>(ZipFile.java:145)
	at java.util.jar.JarFile.<init>(JarFile.java:154)
	at java.util.jar.JarFile.<init>(JarFile.java:118)
	at org.openmrs.module.ModuleFileParser.parse(ModuleFileParser.java:138)