OSLO  It’s all you would expect of a national jubilee: street theater, brass bands, exhibitions and commemorative coins. A statue is to be unveiled, and a $20 million architectural gem of a museum is under construction.

Yet the honoree is not a war hero, nor even a patriot. It is the Norwegian novelist Knut Hamsun, who welcomed the brutal German occupation of Norway during World War II and gave his Nobel Prize in Literature as a gift to the Nazi propaganda minister, Joseph Goebbels. Hamsun later flew to meet Hitler at Hitler’s mountain lair in Bavaria.

Why the festivities, then? Call it reconciliation therapy, or a national airing out.

Hamsun died in 1952 at 92, shunned by his countrymen and heavily fined for his spectacular wartime betrayal. But as the author of revered novels like “Hunger,” “Pan” and “Growth of the Soil,” Hamsun has remained on school reading lists and in the hearts of many Norwegians.

“We can’t help loving him, though we have hated him all these years,” said Ingar Sletten Kolloen, author of “Dreamer & Dissenter,” a Hamsun biography. “That’s our Hamsun trauma. He’s a ghost that won’t stay in the grave.”