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Message:

Illegal cast to MutableAttributeSet

Posted by Laura Dietz on August 23, 2001 at 12:07 PM

Hi!

When I try play with DefaultStyledDocument's element structure I get the following Error:

javax.swing.text.StateInvariantError: Illegal cast to MutableAttributeSet
at javax.swing.text.AbstractDocument$AbstractElement.checkForIllegalCast(AbstractDocument.java:1653)
at javax.swing.text.AbstractDocument$AbstractElement.addAttributes(AbstractDocument.java:1586)
at javax.swing.text.AbstractDocument$AbstractElement.(AbstractDocument.java:1369)
at javax.swing.text.AbstractDocument$LeafElement.(AbstractDocument.java:2085)
at javax.swing.text.AbstractDocument.createLeafElement(AbstractDocument.java:922)
at javax.swing.text.DefaultStyledDocument$ElementBuffer.fractureDeepestLeaf(DefaultStyledDocument.java:2082)
at javax.swing.text.DefaultStyledDocument$ElementBuffer.insertUpdate(DefaultStyledDocument.java:1319)
at javax.swing.text.DefaultStyledDocument$ElementBuffer.insert(DefaultStyledDocument.java:1211)

What have I done wrong?
Is it illegal to use MutableAttributeSets?
How can I get Im-MutableAttributeSets? It seems very complicated since most of the instantiable classes implement MutableAttributeSet.

Regards,
Laura

• Illegal Cast John Mac January 21, 2002 at 6:49 PM (1)
  • stfu morpheus February 13, 2002 at 1:32 PM (0)