Cannot access empty property in PHP

Error :  Cannot access empty property in Test.php on line 90 Reason  :  You put a dollar sign in the wrong place on a member variable. $this->$test = 8; // $test is wrong Possible solution : Put your dollar sign in correct place. $this->test = 8; // test is right >...

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Error Messages in Rails - {{attribute}} {{message}}

Error : Error Messages in Rails - {{attribute}} {{message}} Reason  :  You'll get this error when running Rails 2.3.8 and older. Possible solution : Check for correct version of i18n. First check installed i18n version and then open your Gemfile to see correct version of i18n. Uninstall incompatible i18n version  and install correct version of i18n found in Gemfile...

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org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session

Exception:  com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Access denied for user ''@'localhost' to database 'school' at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:885) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3421) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1247) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2775) at com.mysql.jdbc.Connection.(Connection.java:1555) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285) ...

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javax.servlet.jsp.JspException: Cannot find message resources under key org.apache.struts.action.MESSAGE

Exception:  javax.servlet.jsp.JspException: Cannot find message resources under key org.apache.struts.action.MESSAGE at org.apache.struts.taglib.TagUtils.retrieveMessageResources(TagUtils.java:1189) at org.apache.struts.taglib.TagUtils.message(TagUtils.java:1038) at org.apache.struts.taglib.TagUtils.message(TagUtils.java:1013) at org.apache.struts.taglib.bean.WriteTag.retrieveFormatString(WriteTag.java:254) at org.apache.struts.taglib.bean.WriteTag.formatValue(WriteTag.java:317) at org.apache.struts.taglib.bean.WriteTag.doStartTag(WriteTag.java:232)... Reason  :  you...

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com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Access denied for user ''@'localhost' to database 'school'

Exception:  java.lang.ClassNotFoundException: javax.transaction.Synchronization at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) at org.hibernate.impl.SessionImpl.(SessionImpl.java:248) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:627) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:651) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:659)... Reason  :  you...

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java.lang.ClassNotFoundException: javax.transaction.Synchronization

Exception:  com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Access denied for user ''@'localhost' to database 'school' at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:885) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3421) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1247) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2775) at com.mysql.jdbc.Connection.(Connection.java:1555) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285) ...

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java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter

Exception:  java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) at org.hibernate.bytecode.javassist.BytecodeProviderImpl.getProxyFactoryFactory(BytecodeProviderImpl.java:49) at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactoryInternal(PojoEntityTuplizer.java:207) at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:185)... Reason  :  you...

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org.hibernate.HibernateException: Unable to instantiate default tuplizer

Exception:  Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]     at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:108)     at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:133)     at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:80)     at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:322)    ...

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Check element exists in javascript

Code to check if element exist of not.  You can check element exist or not with javascript by it id or name. Check Element exist in Javascript With Id : var check = document.getElementById("elementId"); if(check.length != 0) { alert('I am present'); } With Name:   var check = document.getElementsByName("elementName"); if(check.length != 0) { alert('I am present'); } Check Element exist in jQuery With Id : if ($('#elementId').length > 0) { // it exists }...

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