WARSAW, JUNE 14 -- Communist leader Gen. Wojciech Jaruzelski angrily denounced "alien manipulations" of the truth about Poland here today as Pope John Paul II concluded a seven-day visit to the country in which he offered impassioned support for the banned Solidarity trade union.

The pope and Jaruzelski, who had talked for 70 minutes after John Paul's arrival last Monday, held an unscheduled, 55-minute second encounter late this afternoon at Warsaw's Okecie International Airport, shortly before the Polish-born pontiff boarded a flight for Rome.

Then, as the pope stood alongside him at an airport ceremony, Jaruzelski read a statement that bluntly expressed his bitterness at John Paul's emotional embrace of Solidarity and repeated calls for reform of Poland's political system.

"Your holiness, you will soon bid farewell to your homeland; you will take its image with you in your heart but you cannot take with you its problems," the general declared as John Paul closed his eyes and grimaced.

"Poland needs truth. But truth about Poland is necessary too. How frequently in recent days has it been the victim of alien manipulations so offensive to the common sense of our nation."

Sarcastically referring to the pope's repeated evocations of Solidarity as both an organization and a quality, Jaruzelski added: "May the word solidarity be heard from this land for all people who continue suffering from racism, neocolonialism, exploitation, unemployment, reprisals and intolerance."

The general's remarkable outburst, one of the most virulent public statements he has made in his six years in power, came at the end of a day in which John Paul completed his show of support for the country's political opposition. Visiting Warsaw's St. Stanislaw Kostka Church this morning, he kissed the huge gravestone of murdered pro-Solidarity priest Jerzy Popieluszko in a moving ceremony witnessed by thousands.

Later, the pontiff celebrated the last, massive outdoor mass of his third journey here in front of a huge neo-Gothic skyscraper placed by former Soviet leader Joseph Stalin in the center of Warsaw during the 1950s.

In a farewell address to Poland's bishops, John Paul made clear that he expected the Catholic Church here to carry on a strong battle for human rights and the expansion of political liberties even as it sought a more stable relationship with the communist government.

Sounding a note of conciliation with the government, he indicated that the establishment of ties between the Vatican and this Eastern Bloc state, long sought by Jaruzelski, was a real and in many ways desirable prospect.

He cautioned, however, that "we are facing a serious task, which is aimed not only at the realization of {that} proposal, but also -- and perhaps even more so -- making it credible for the nation and the church."

The church, he added, should seek "collective cooperation" but "must not overlook" such matters as human rights and "the principle of participation . . . in the political sphere, without discrimination."

The pope's remarks and his agreement to a second meeting with Jaruzelski appeared intended to balance the content of a visit in which John Paul was otherwise unrelenting in his political demands on the government and almost unqualified in his support for the opposition.

During his week here, the pope privately met and publicly served communion to Solidarity leader Lech Walesa, called for a rethinking of "the very premises" of Poland's communist order and emotionally told hundreds of thousands of cheering supporters in Solidarity's birthplace in Gdansk, "I pray for the special heritage of Polish solidarity."

His actions have been greeted jubilantly by Solidarity's leadership, which tonight issued a statement saying that "the message of the holy father obliges us to go on, with continuing resistance against oppression and with unswerving aim for freedom. It is for us a source of encouragement and hope."

Government authorities responded to the pope's tour and the accompanying demonstrations of opposition from Solidarity with a massive show of police force unprecedented since the martial law that Jaruzelski used to suppress Solidarity between December 1981 and July 1983.

The pontiff's comments on Solidarity were censored from state news media, and television coverage was strictly limited.

A further hint of the rising tensions between the two leaders came yesterday, when two high-level Communist Party officials traveled to the Catholic shrine in Czestochowa to meet John Paul. Reports said the envoys transmitted Jaruzelski's concern about the pope's statements.

Today, Jaruzelski said his government would "uphold the historic offer" of "constructive relations between the socialist state and the Roman Catholic Church."

However, he then strongly referred to the standing argument of Poland's communist party that the nation could not exist as an independent state within its post-World War II borders if it did not remain a loyal member of the Soviet Bloc.

"Poland, like any other country in the world, is no paradise on earth," said Jaruzelski. "But for the first time in history our priceless weal, an independent state, securely rests within just borders. We have our own road. It is the road of renewal, democratization, reforms, . . . convergent with the current of profound changes in the world of socialism."

In his own statement, John Paul responded that "our homeland must seek to make human life in Poland more and more human, more and more worthy of man." He continued: "This process has four guiding principles: . . . the right to truth, the right to freedom, the right to justice, the right to love."