Such a problem. I'm trying to get a list of files from FTP and at this moment the server freezes. He began to dig anything incomprehensible. Connection is created normally, everything is cool, but freezes ( org.apache.commons.net.ftp.FTPClient ). Then I began to watch the logs, and saw this. These errors get out at the very start of the server, more precisely, at a delay. I do not know whether this is due to a hang or not, but I want to know what it is. here is a crystal
[2015-11-04T18:20:36.297+0600] [glassfish 4.1] [WARNING] [] [org.apache.jasper.runtime.TldScanner] [tid: _ThreadID=50 _ThreadName=admin-listener(3)] [timeMillis: 1446639636297] [levelValue: 900] [[ PWC6351: In TLD scanning, the supplied resource file:/C:/glassfish4/glassfish/domains/domain1/generated/ejb/ear-1.0-SNAPSHOT/ejb-1.0-SNAPSHOT.jar does not exist java.io.FileNotFoundException: C:\glassfish4\glassfish\domains\domain1\generated\ejb\ear-1.0-SNAPSHOT\ejb-1.0-SNAPSHOT.jar (Отказано в доступе) at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:219) at java.util.zip.ZipFile.<init>(ZipFile.java:149) at java.util.jar.JarFile.<init>(JarFile.java:166) at java.util.jar.JarFile.<init>(JarFile.java:103) at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:93) at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:69) at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:109) at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122) at sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:89) at org.apache.jasper.runtime.TldScanner.scanJar(TldScanner.java:445) at org.apache.jasper.runtime.TldScanner.scanJars(TldScanner.java:697) at org.apache.jasper.runtime.TldScanner.scanTlds(TldScanner.java:353) at org.apache.jasper.runtime.TldScanner.onStartup(TldScanner.java:242) at org.apache.catalina.core.StandardContext.callServletContainerInitializers(StandardContext.java:6031) at com.sun.enterprise.web.WebModule.callServletContainerInitializers(WebModule.java:774) at org.apache.catalina.core.StandardContext.start(StandardContext.java:5929) at com.sun.enterprise.web.WebModule.start(WebModule.java:691) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1041) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:1024) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:747) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2286) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1932) at com.sun.enterprise.web.WebApplication.start(WebApplication.java:139) at org.glassfish.internal.data.EngineRef.start(EngineRef.java:122) [2015-11-04T18:20:36.310+0600] [glassfish 4.1] [WARNING] [] [org.apache.jasper.runtime.TldScanner] [tid: _ThreadID=50 _ThreadName=admin-listener(3)] [timeMillis: 1446639636310] [levelValue: 900] [[ PWC6351: In TLD scanning, the supplied resource file:/C:/app/svnApp/branches/QCforCCMaven/ear/target/ear-1.0-SNAPSHOT/jdbc-stdext-2.0.jar does not exist java.io.FileNotFoundException: C:\app\svnApp\branches\QCforCCMaven\ear\target\ear-1.0-SNAPSHOT\jdbc-stdext-2.0.jar (Не удается найти указанный файл) at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:219) at java.util.zip.ZipFile.<init>(ZipFile.java:149) at java.util.jar.JarFile.<init>(JarFile.java:166) at java.util.jar.JarFile.<init>(JarFile.java:103) at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:93) at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:69) at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:109) at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122) at sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:89) at org.apache.jasper.runtime.TldScanner.scanJar(TldScanner.java:445) at org.apache.jasper.runtime.TldScanner.scanJars(TldScanner.java:697) at org.apache.jasper.runtime.TldScanner.scanTlds(TldScanner.java:353) at org.apache.jasper.runtime.TldScanner.onStartup(TldScanner.java:242) at org.apache.catalina.core.StandardContext.callServletContainerInitializers(StandardContext.java:6031) at com.sun.enterprise.web.WebModule.callServletContainerInitializers(WebModule.java:774) at org.apache.catalina.core.StandardContext.start(StandardContext.java:5929) at com.sun.enterprise.web.WebModule.start(WebModule.java:691) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1041) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:1024) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:747) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2286) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1932) at com.sun.enterprise.web.WebApplication.start(WebApplication.java:139) at org.glassfish.internal.data.EngineRef.start(EngineRef.java:122) 
