junit-platform-testkit/src/main/java/org/junit/platform/testkit/engine/Assertions.java [37:58]:
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	static void assertAll(String heading, Stream<Executable> executables) {
		Preconditions.notNull(executables, "executables stream must not be null");

		List<Throwable> failures = executables //
				.peek(executable -> Preconditions.notNull(executable, "individual executables must not be null"))//
				.map(executable -> {
					try {
						executable.execute();
						return null;
					}
					catch (Throwable t) {
						UnrecoverableExceptions.rethrowIfUnrecoverable(t);
						return t;
					}
				}) //
				.filter(Objects::nonNull) //
				.collect(Collectors.toList());

		if (!failures.isEmpty()) {
			MultipleFailuresError multipleFailuresError = new MultipleFailuresError(heading, failures);
			failures.forEach(multipleFailuresError::addSuppressed);
			throw multipleFailuresError;
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junit-jupiter-api/src/main/java/org/junit/jupiter/api/AssertAll.java [61:82]:
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	static void assertAll(String heading, Stream<Executable> executables) {
		Preconditions.notNull(executables, "executables stream must not be null");

		List<Throwable> failures = executables //
				.peek(executable -> Preconditions.notNull(executable, "individual executables must not be null"))//
				.map(executable -> {
					try {
						executable.execute();
						return null;
					}
					catch (Throwable t) {
						UnrecoverableExceptions.rethrowIfUnrecoverable(t);
						return t;
					}
				}) //
				.filter(Objects::nonNull) //
				.collect(Collectors.toList());

		if (!failures.isEmpty()) {
			MultipleFailuresError multipleFailuresError = new MultipleFailuresError(heading, failures);
			failures.forEach(multipleFailuresError::addSuppressed);
			throw multipleFailuresError;
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