Error appears when user edit attributes of jsf html tags. ---------------------------------------------------------- Key: JBIDE-1745 URL: http://jira.jboss.com/jira/browse/JBIDE-1745 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsp/jsf/xml source editing Affects Versions: 2.0.0.GA Reporter: Andrei Scherbovich Attachments: 1.jpg Error appeared when I tried to edit attribute of <h:form>. It usually appears when I edit attributes. I can hardly reproduce this bug but it appears very often. See attachment and error log below: java.lang.NullPointerException at org.eclipse.jst.jsp.core.internal.validation.JSPActionValidator.getTaglibPrefixes(JSPActionValidator.java:157) at org.eclipse.jst.jsp.core.internal.validation.JSPActionValidator.performValidation(JSPActionValidator.java:215) at org.eclipse.jst.jsp.core.internal.validation.JSPActionValidator.performValidation(JSPActionValidator.java:193) at org.eclipse.jst.jsp.core.internal.validation.JSPBatchValidator.performValidation(JSPBatchValidator.java:377) at org.eclipse.jst.jsp.core.internal.validation.JSPBatchValidator.validateFile(JSPBatchValidator.java:428) at org.eclipse.jst.jsp.core.internal.validation.JSPBatchValidator.doValidate(JSPBatchValidator.java:190) at org.eclipse.jst.jsp.core.internal.validation.JSPBatchValidator$1.run(JSPBatchValidator.java:452) at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:720) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1797) at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4466) at org.eclipse.jst.jsp.core.internal.validation.JSPBatchValidator.validateInJob(JSPBatchValidator.java:460) at org.eclipse.wst.validation.internal.operations.ValidatorJob.run(ValidatorJob.java:75) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira