[HOP-3542] Error previewing transform in Hop Web

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.1.0
• Component/s: Hop Web
• Assignee: Unassigned
• Reporter: Matt Casters
• Created: 13/Dec/21 15:43
• Updated: 16/Dec/21 14:13
• Resolved: 16/Dec/21 14:13

Description

Open one of the samples like transforms/csvinput-basic.hpl and open the CSV Input transform.  Click the preview button in the dialog:

Exception in thread "Thread-41" java.lang.IllegalStateException: Invalid thread access
at org.eclipse.rap.rwt.RWT.checkContext(RWT.java:704)
at org.eclipse.rap.rwt.RWT.getUISession(RWT.java:588)
at org.eclipse.rap.rwt.SingletonUtil.getSessionInstance(SingletonUtil.java:58)
at org.apache.hop.ui.hopgui.HopGuiImpl.getInstanceInternal(HopGuiImpl.java:25)
at org.apache.hop.ui.hopgui.HopGui.getInstance(HopGui.java:257)
at org.apache.hop.ui.pipeline.dialog.PipelinePreviewProgressDialog.doPreview(PipelinePreviewProgressDialog.java:156)
at org.apache.hop.ui.pipeline.dialog.PipelinePreviewProgressDialog.lambda$open$0(PipelinePreviewProgressDialog.java:90)
at org.apache.hop.ui.core.dialog.ProgressMonitorDialog.lambda$null$2(ProgressMonitorDialog.java:170)
at java.lang.Thread.run(Thread.java:748)