Creating an issue fails with the following backtrace in the logs (abridged).
Disabling the Support Tool Bar module will get rid of that error.
Is this a known problem?
May 23, 2012 1:00:05 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet action threw exception
java.lang.NullPointerException
at com.atlassian.jira.workflow.OSWorkflowManager.isEditable(OSWorkflowManager.java:1073)
at com.atlassian.jira.issue.managers.DefaultIssueManager.isEditable(DefaultIssueManager.java:439)
at sun.reflect.GeneratedMethodAccessor370.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.atlassian.multitenant.impl.MultiTenantComponentFactoryImpl$AbstractMultiTenantAwareInvocationHandler.invokeInternal(MultiTenantComponentFactoryImpl.java:181)
at com.atlassian.multitenant.impl.MultiTenantComponentFactoryImpl$MultiTenantAwareInvocationHandler.invoke(MultiTenantComponentFactoryImpl.java:211)
at $Proxy78.isEditable(Unknown Source)
at sun.reflect.GeneratedMethodAccessor370.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129)
at $Proxy78.isEditable(Unknown Source)
at sun.reflect.GeneratedMethodAccessor370.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.atlassian.plugin.osgi.bridge.external.HostComponentFactoryBean$DynamicServiceInvocationHandler.invoke(HostComponentFactoryBean.java:154)
at $Proxy78.isEditable(Unknown Source)
at com.atlassian.jira.toolkit.customfield.NullCFType.getVelocityParameters(NullCFType.java:51)
at com.atlassian.jira.issue.customfields.CustomFieldUtils.buildParams(CustomFieldUtils.java:429)
at com.atlassian.jira.plugin.customfield.CustomFieldTypeModuleDescriptorImpl.getEditHtml(CustomFieldTypeModuleDescriptorImpl.java:84)
at com.atlassian.jira.issue.fields.CustomFieldImpl.getEditHtml(CustomFieldImpl.java:937)
at com.atlassian.jira.issue.fields.CustomFieldImpl.getCreateHtml(CustomFieldImpl.java:923)
at com.atlassian.jira.issue.fields.screen.AbstractFieldScreenLayoutItem.getCreateHtml(AbstractFieldScreenLayoutItem.java:90)
at com.atlassian.jira.issue.fields.screen.FieldScreenRenderLayoutItemImpl.getCreateHtml(FieldScreenRenderLayoutItemImpl.java:50)
at com.atlassian.jira.issue.fields.rest.FieldHtmlFactoryImpl.getCreateFields(FieldHtmlFactoryImpl.java:96)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.atlassian.multitenant.impl.MultiTenantComponentFactoryImpl$AbstractMultiTenantAwareInvocationHandler.invokeInternal(MultiTenantComponentFactoryImpl.java:181)
at com.atlassian.multitenant.impl.MultiTenantComponentFactoryImpl$MultiTenantAwareInvocationHandler.invoke(MultiTenantComponentFactoryImpl.java:211)
at $Proxy254.getCreateFields(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)